| sqlite3_value_frombind
+** | → | True if value originated from a [bound parameter]
**
**
** Details:
@@ -5980,6 +6163,11 @@ SQLITE_API SQLITE_DEPRECATED int sqlite3_memory_alarm(void(*)(void*,sqlite3_int6
** than within an [xUpdate] method call for an UPDATE statement, then
** the return value is arbitrary and meaningless.
**
+** ^The sqlite3_value_frombind(X) interface returns non-zero if the
+** value X originated from one of the [sqlite3_bind_int|sqlite3_bind()]
+** interfaces. ^If X comes from an SQL literal value, or a table column,
+** and expression, then sqlite3_value_frombind(X) returns zero.
+**
** Please pay particular attention to the fact that the pointer returned
** from [sqlite3_value_blob()], [sqlite3_value_text()], or
** [sqlite3_value_text16()] can be invalidated by a subsequent call to
@@ -6025,6 +6213,7 @@ SQLITE_API int sqlite3_value_bytes16(sqlite3_value*);
SQLITE_API int sqlite3_value_type(sqlite3_value*);
SQLITE_API int sqlite3_value_numeric_type(sqlite3_value*);
SQLITE_API int sqlite3_value_nochange(sqlite3_value*);
+SQLITE_API int sqlite3_value_frombind(sqlite3_value*);
/*
** CAPI3REF: Finding The Subtype Of SQL Values
@@ -6760,7 +6949,7 @@ SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
** associated with database N of connection D. ^The main database file
** has the name "main". If there is no attached database N on the database
** connection D, or if database N is a temporary or in-memory database, then
-** a NULL pointer is returned.
+** this function will return either a NULL pointer or an empty string.
**
** ^The filename returned by this function is the output of the
** xFullPathname method of the [VFS]. ^In other words, the filename
@@ -7315,6 +7504,9 @@ struct sqlite3_module {
int (*xSavepoint)(sqlite3_vtab *pVTab, int);
int (*xRelease)(sqlite3_vtab *pVTab, int);
int (*xRollbackTo)(sqlite3_vtab *pVTab, int);
+ /* The methods above are in versions 1 and 2 of the sqlite_module object.
+ ** Those below are for version 3 and greater. */
+ int (*xShadowName)(const char*);
};
/*
@@ -7503,6 +7695,12 @@ struct sqlite3_index_info {
** ^The sqlite3_create_module()
** interface is equivalent to sqlite3_create_module_v2() with a NULL
** destructor.
+**
+** ^If the third parameter (the pointer to the sqlite3_module object) is
+** NULL then no new module is create and any existing modules with the
+** same name are dropped.
+**
+** See also: [sqlite3_drop_modules()]
*/
SQLITE_API int sqlite3_create_module(
sqlite3 *db, /* SQLite connection to register module with */
@@ -7518,6 +7716,23 @@ SQLITE_API int sqlite3_create_module_v2(
void(*xDestroy)(void*) /* Module destructor function */
);
+/*
+** CAPI3REF: Remove Unnecessary Virtual Table Implementations
+** METHOD: sqlite3
+**
+** ^The sqlite3_drop_modules(D,L) interface removes all virtual
+** table modules from database connection D except those named on list L.
+** The L parameter must be either NULL or a pointer to an array of pointers
+** to strings where the array is terminated by a single NULL pointer.
+** ^If the L parameter is NULL, then all virtual table modules are removed.
+**
+** See also: [sqlite3_create_module()]
+*/
+SQLITE_API int sqlite3_drop_modules(
+ sqlite3 *db, /* Remove modules from this connection */
+ const char **azKeep /* Except, do not remove the ones named here */
+);
+
/*
** CAPI3REF: Virtual Table Instance Object
** KEYWORDS: sqlite3_vtab
@@ -8226,7 +8441,7 @@ SQLITE_API int sqlite3_test_control(int op, ...);
#define SQLITE_TESTCTRL_FIRST 5
#define SQLITE_TESTCTRL_PRNG_SAVE 5
#define SQLITE_TESTCTRL_PRNG_RESTORE 6
-#define SQLITE_TESTCTRL_PRNG_RESET 7
+#define SQLITE_TESTCTRL_PRNG_RESET 7 /* NOT USED */
#define SQLITE_TESTCTRL_BITVEC_TEST 8
#define SQLITE_TESTCTRL_FAULT_INSTALL 9
#define SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS 10
@@ -8237,6 +8452,7 @@ SQLITE_API int sqlite3_test_control(int op, ...);
#define SQLITE_TESTCTRL_OPTIMIZATIONS 15
#define SQLITE_TESTCTRL_ISKEYWORD 16 /* NOT USED */
#define SQLITE_TESTCTRL_SCRATCHMALLOC 17 /* NOT USED */
+#define SQLITE_TESTCTRL_INTERNAL_FUNCTIONS 17
#define SQLITE_TESTCTRL_LOCALTIME_FAULT 18
#define SQLITE_TESTCTRL_EXPLAIN_STMT 19 /* NOT USED */
#define SQLITE_TESTCTRL_ONCE_RESET_THRESHOLD 19
@@ -8247,7 +8463,10 @@ SQLITE_API int sqlite3_test_control(int op, ...);
#define SQLITE_TESTCTRL_SORTER_MMAP 24
#define SQLITE_TESTCTRL_IMPOSTER 25
#define SQLITE_TESTCTRL_PARSER_COVERAGE 26
-#define SQLITE_TESTCTRL_LAST 26 /* Largest TESTCTRL */
+#define SQLITE_TESTCTRL_RESULT_INTREAL 27
+#define SQLITE_TESTCTRL_PRNG_SEED 28
+#define SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS 29
+#define SQLITE_TESTCTRL_LAST 29 /* Largest TESTCTRL */
/*
** CAPI3REF: SQL Keyword Checking
@@ -9649,6 +9868,7 @@ SQLITE_API int sqlite3_vtab_config(sqlite3*, int op, ...);
** can use to customize and optimize their behavior.
**
**
+** [[SQLITE_VTAB_CONSTRAINT_SUPPORT]]
** - SQLITE_VTAB_CONSTRAINT_SUPPORT
**
- Calls of the form
** [sqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
@@ -10418,7 +10638,7 @@ struct sqlite3_rtree_query_info {
sqlite3_int64 iRowid; /* Rowid for current entry */
sqlite3_rtree_dbl rParentScore; /* Score of parent node */
int eParentWithin; /* Visibility of parent node */
- int eWithin; /* OUT: Visiblity */
+ int eWithin; /* OUT: Visibility */
sqlite3_rtree_dbl rScore; /* OUT: Write the score here */
/* The following fields are only available in 3.8.11 and later */
sqlite3_value **apSqlParam; /* Original SQL values of parameters */
@@ -10914,12 +11134,38 @@ SQLITE_API int sqlite3session_isempty(sqlite3_session *pSession);
** consecutively. There is no chance that the iterator will visit a change
** the applies to table X, then one for table Y, and then later on visit
** another change for table X.
+**
+** The behavior of sqlite3changeset_start_v2() and its streaming equivalent
+** may be modified by passing a combination of
+** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
+**
+** Note that the sqlite3changeset_start_v2() API is still experimental
+** and therefore subject to change.
*/
SQLITE_API int sqlite3changeset_start(
sqlite3_changeset_iter **pp, /* OUT: New changeset iterator handle */
int nChangeset, /* Size of changeset blob in bytes */
void *pChangeset /* Pointer to blob containing changeset */
);
+SQLITE_API int sqlite3changeset_start_v2(
+ sqlite3_changeset_iter **pp, /* OUT: New changeset iterator handle */
+ int nChangeset, /* Size of changeset blob in bytes */
+ void *pChangeset, /* Pointer to blob containing changeset */
+ int flags /* SESSION_CHANGESETSTART_* flags */
+);
+
+/*
+** CAPI3REF: Flags for sqlite3changeset_start_v2
+**
+** The following flags may passed via the 4th parameter to
+** [sqlite3changeset_start_v2] and [sqlite3changeset_start_v2_strm]:
+**
+**
- SQLITE_CHANGESETAPPLY_INVERT
-
+** Invert the changeset while iterating through it. This is equivalent to
+** inverting a changeset using sqlite3changeset_invert() before applying it.
+** It is an error to specify this flag with a patchset.
+*/
+#define SQLITE_CHANGESETSTART_INVERT 0x0002
/*
@@ -10963,7 +11209,7 @@ SQLITE_API int sqlite3changeset_next(sqlite3_changeset_iter *pIter);
** sqlite3changeset_next() is called on the iterator or until the
** conflict-handler function returns. If pnCol is not NULL, then *pnCol is
** set to the number of columns in the table affected by the change. If
-** pbIncorrect is not NULL, then *pbIndirect is set to true (1) if the change
+** pbIndirect is not NULL, then *pbIndirect is set to true (1) if the change
** is an indirect change, or false (0) otherwise. See the documentation for
** [sqlite3session_indirect()] for a description of direct and indirect
** changes. Finally, if pOp is not NULL, then *pOp is set to one of
@@ -11574,7 +11820,7 @@ SQLITE_API int sqlite3changeset_apply_v2(
),
void *pCtx, /* First argument passed to xConflict */
void **ppRebase, int *pnRebase, /* OUT: Rebase data */
- int flags /* Combination of SESSION_APPLY_* flags */
+ int flags /* SESSION_CHANGESETAPPLY_* flags */
);
/*
@@ -11592,8 +11838,14 @@ SQLITE_API int sqlite3changeset_apply_v2(
** causes the sessions module to omit this savepoint. In this case, if the
** caller has an open transaction or savepoint when apply_v2() is called,
** it may revert the partially applied changeset by rolling it back.
+**
+**
- SQLITE_CHANGESETAPPLY_INVERT
-
+** Invert the changeset before applying it. This is equivalent to inverting
+** a changeset using sqlite3changeset_invert() before applying it. It is
+** an error to specify this flag with a patchset.
*/
#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT 0x0001
+#define SQLITE_CHANGESETAPPLY_INVERT 0x0002
/*
** CAPI3REF: Constants Passed To The Conflict Handler
@@ -11824,7 +12076,7 @@ SQLITE_API int sqlite3rebaser_configure(
** in size. This function allocates and populates a buffer with a copy
** of the changeset rebased rebased according to the configuration of the
** rebaser object passed as the first argument. If successful, (*ppOut)
-** is set to point to the new buffer containing the rebased changset and
+** is set to point to the new buffer containing the rebased changeset and
** (*pnOut) to its size in bytes and SQLITE_OK returned. It is the
** responsibility of the caller to eventually free the new buffer using
** sqlite3_free(). Otherwise, if an error occurs, (*ppOut) and (*pnOut)
@@ -11987,6 +12239,12 @@ SQLITE_API int sqlite3changeset_start_strm(
int (*xInput)(void *pIn, void *pData, int *pnData),
void *pIn
);
+SQLITE_API int sqlite3changeset_start_v2_strm(
+ sqlite3_changeset_iter **pp,
+ int (*xInput)(void *pIn, void *pData, int *pnData),
+ void *pIn,
+ int flags
+);
SQLITE_API int sqlite3session_changeset_strm(
sqlite3_session *pSession,
int (*xOutput)(void *pOut, const void *pData, int nData),
@@ -12013,6 +12271,45 @@ SQLITE_API int sqlite3rebaser_rebase_strm(
void *pOut
);
+/*
+** CAPI3REF: Configure global parameters
+**
+** The sqlite3session_config() interface is used to make global configuration
+** changes to the sessions module in order to tune it to the specific needs
+** of the application.
+**
+** The sqlite3session_config() interface is not threadsafe. If it is invoked
+** while any other thread is inside any other sessions method then the
+** results are undefined. Furthermore, if it is invoked after any sessions
+** related objects have been created, the results are also undefined.
+**
+** The first argument to the sqlite3session_config() function must be one
+** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The
+** interpretation of the (void*) value passed as the second parameter and
+** the effect of calling this function depends on the value of the first
+** parameter.
+**
+**
+** - SQLITE_SESSION_CONFIG_STRMSIZE
-
+** By default, the sessions module streaming interfaces attempt to input
+** and output data in approximately 1 KiB chunks. This operand may be used
+** to set and query the value of this configuration setting. The pointer
+** passed as the second argument must point to a value of type (int).
+** If this value is greater than 0, it is used as the new streaming data
+** chunk size for both input and output. Before returning, the (int) value
+** pointed to by pArg is set to the final value of the streaming interface
+** chunk size.
+**
+**
+** This function returns SQLITE_OK if successful, or an SQLite error code
+** otherwise.
+*/
+SQLITE_API int sqlite3session_config(int op, void *pArg);
+
+/*
+** CAPI3REF: Values for sqlite3session_config().
+*/
+#define SQLITE_SESSION_CONFIG_STRMSIZE 1
/*
** Make sure we can call this stuff from C++.
@@ -12146,12 +12443,8 @@ struct Fts5PhraseIter {
**
** Usually, output parameter *piPhrase is set to the phrase number, *piCol
** to the column in which it occurs and *piOff the token offset of the
-** first token of the phrase. The exception is if the table was created
-** with the offsets=0 option specified. In this case *piOff is always
-** set to -1.
-**
-** Returns SQLITE_OK if successful, or an error code (i.e. SQLITE_NOMEM)
-** if an error occurs.
+** first token of the phrase. Returns SQLITE_OK if successful, or an error
+** code (i.e. SQLITE_NOMEM) if an error occurs.
**
** This API can be quite slow if used with an FTS5 table created with the
** "detail=none" or "detail=column" option.
@@ -12192,7 +12485,7 @@ struct Fts5PhraseIter {
** Save the pointer passed as the second argument as the extension functions
** "auxiliary data". The pointer may then be retrieved by the current or any
** future invocation of the same fts5 extension function made as part of
-** of the same MATCH query using the xGetAuxdata() API.
+** the same MATCH query using the xGetAuxdata() API.
**
** Each extension function is allocated a single auxiliary data slot for
** each FTS query (MATCH expression). If the extension function is invoked
@@ -12207,7 +12500,7 @@ struct Fts5PhraseIter {
** The xDelete callback, if one is specified, is also invoked on the
** auxiliary data pointer after the FTS5 query has finished.
**
-** If an error (e.g. an OOM condition) occurs within this function, an
+** If an error (e.g. an OOM condition) occurs within this function,
** the auxiliary data is set to NULL and an error code returned. If the
** xDelete parameter was not NULL, it is invoked on the auxiliary data
** pointer before returning.
@@ -12440,11 +12733,11 @@ struct Fts5ExtensionApi {
** the tokenizer substitutes "first" for "1st" and the query works
** as expected.
**
-** - By adding multiple synonyms for a single term to the FTS index.
-** In this case, when tokenizing query text, the tokenizer may
-** provide multiple synonyms for a single term within the document.
-** FTS5 then queries the index for each synonym individually. For
-** example, faced with the query:
+**
- By querying the index for all synonyms of each query term
+** separately. In this case, when tokenizing query text, the
+** tokenizer may provide multiple synonyms for a single term
+** within the document. FTS5 then queries the index for each
+** synonym individually. For example, faced with the query:
**
**
** ... MATCH 'first place'
@@ -12468,7 +12761,7 @@ struct Fts5ExtensionApi {
** "place".
**
** This way, even if the tokenizer does not provide synonyms
-** when tokenizing query text (it should not - to do would be
+** when tokenizing query text (it should not - to do so would be
** inefficient), it doesn't matter if the user queries for
** 'first + place' or '1st + place', as there are entries in the
** FTS index corresponding to both forms of the first token.
@@ -12870,15 +13163,15 @@ struct fts5_api {
** So we have to define the macros in different ways depending on the
** compiler.
*/
-#if defined(__PTRDIFF_TYPE__) /* This case should work for GCC */
+#if defined(HAVE_STDINT_H) /* Use this case if we have ANSI headers */
+# define SQLITE_INT_TO_PTR(X) ((void*)(intptr_t)(X))
+# define SQLITE_PTR_TO_INT(X) ((int)(intptr_t)(X))
+#elif defined(__PTRDIFF_TYPE__) /* This case should work for GCC */
# define SQLITE_INT_TO_PTR(X) ((void*)(__PTRDIFF_TYPE__)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(__PTRDIFF_TYPE__)(X))
#elif !defined(__GNUC__) /* Works for compilers other than LLVM */
# define SQLITE_INT_TO_PTR(X) ((void*)&((char*)0)[X])
# define SQLITE_PTR_TO_INT(X) ((int)(((char*)X)-(char*)0))
-#elif defined(HAVE_STDINT_H) /* Use this case if we have ANSI headers */
-# define SQLITE_INT_TO_PTR(X) ((void*)(intptr_t)(X))
-# define SQLITE_PTR_TO_INT(X) ((int)(intptr_t)(X))
#else /* Generates a warning - but it always works */
# define SQLITE_INT_TO_PTR(X) ((void*)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(X))
@@ -13233,7 +13526,7 @@ struct Hash {
unsigned int count; /* Number of entries in this table */
HashElem *first; /* The first element of the array */
struct _ht { /* the hash table */
- int count; /* Number of entries with this hash */
+ unsigned int count; /* Number of entries with this hash */
HashElem *chain; /* Pointer to first entry with this hash */
} *ht;
};
@@ -13368,105 +13661,103 @@ SQLITE_PRIVATE void sqlite3HashClear(Hash*);
#define TK_VIEW 79
#define TK_VIRTUAL 80
#define TK_WITH 81
-#define TK_CURRENT 82
-#define TK_FOLLOWING 83
-#define TK_PARTITION 84
-#define TK_PRECEDING 85
-#define TK_RANGE 86
-#define TK_UNBOUNDED 87
-#define TK_REINDEX 88
-#define TK_RENAME 89
-#define TK_CTIME_KW 90
-#define TK_ANY 91
-#define TK_BITAND 92
-#define TK_BITOR 93
-#define TK_LSHIFT 94
-#define TK_RSHIFT 95
-#define TK_PLUS 96
-#define TK_MINUS 97
-#define TK_STAR 98
-#define TK_SLASH 99
-#define TK_REM 100
-#define TK_CONCAT 101
-#define TK_COLLATE 102
-#define TK_BITNOT 103
-#define TK_ON 104
-#define TK_INDEXED 105
-#define TK_STRING 106
-#define TK_JOIN_KW 107
-#define TK_CONSTRAINT 108
-#define TK_DEFAULT 109
-#define TK_NULL 110
-#define TK_PRIMARY 111
-#define TK_UNIQUE 112
-#define TK_CHECK 113
-#define TK_REFERENCES 114
-#define TK_AUTOINCR 115
-#define TK_INSERT 116
-#define TK_DELETE 117
-#define TK_UPDATE 118
-#define TK_SET 119
-#define TK_DEFERRABLE 120
-#define TK_FOREIGN 121
-#define TK_DROP 122
-#define TK_UNION 123
-#define TK_ALL 124
-#define TK_EXCEPT 125
-#define TK_INTERSECT 126
-#define TK_SELECT 127
-#define TK_VALUES 128
-#define TK_DISTINCT 129
-#define TK_DOT 130
-#define TK_FROM 131
-#define TK_JOIN 132
-#define TK_USING 133
-#define TK_ORDER 134
-#define TK_GROUP 135
-#define TK_HAVING 136
-#define TK_LIMIT 137
-#define TK_WHERE 138
-#define TK_INTO 139
-#define TK_NOTHING 140
-#define TK_FLOAT 141
-#define TK_BLOB 142
-#define TK_INTEGER 143
-#define TK_VARIABLE 144
-#define TK_CASE 145
-#define TK_WHEN 146
-#define TK_THEN 147
-#define TK_ELSE 148
-#define TK_INDEX 149
-#define TK_ALTER 150
-#define TK_ADD 151
-#define TK_WINDOW 152
-#define TK_OVER 153
-#define TK_FILTER 154
-#define TK_TRUEFALSE 155
-#define TK_ISNOT 156
-#define TK_FUNCTION 157
-#define TK_COLUMN 158
-#define TK_AGG_FUNCTION 159
-#define TK_AGG_COLUMN 160
-#define TK_UMINUS 161
-#define TK_UPLUS 162
-#define TK_TRUTH 163
-#define TK_REGISTER 164
-#define TK_VECTOR 165
-#define TK_SELECT_COLUMN 166
-#define TK_IF_NULL_ROW 167
-#define TK_ASTERISK 168
-#define TK_SPAN 169
-#define TK_END_OF_FILE 170
-#define TK_UNCLOSED_STRING 171
-#define TK_SPACE 172
-#define TK_ILLEGAL 173
-
-/* The token codes above must all fit in 8 bits */
-#define TKFLG_MASK 0xff
-
-/* Flags that can be added to a token code when it is not
-** being stored in a u8: */
-#define TKFLG_DONTFOLD 0x100 /* Omit constant folding optimizations */
+#define TK_NULLS 82
+#define TK_FIRST 83
+#define TK_LAST 84
+#define TK_CURRENT 85
+#define TK_FOLLOWING 86
+#define TK_PARTITION 87
+#define TK_PRECEDING 88
+#define TK_RANGE 89
+#define TK_UNBOUNDED 90
+#define TK_EXCLUDE 91
+#define TK_GROUPS 92
+#define TK_OTHERS 93
+#define TK_TIES 94
+#define TK_REINDEX 95
+#define TK_RENAME 96
+#define TK_CTIME_KW 97
+#define TK_ANY 98
+#define TK_BITAND 99
+#define TK_BITOR 100
+#define TK_LSHIFT 101
+#define TK_RSHIFT 102
+#define TK_PLUS 103
+#define TK_MINUS 104
+#define TK_STAR 105
+#define TK_SLASH 106
+#define TK_REM 107
+#define TK_CONCAT 108
+#define TK_COLLATE 109
+#define TK_BITNOT 110
+#define TK_ON 111
+#define TK_INDEXED 112
+#define TK_STRING 113
+#define TK_JOIN_KW 114
+#define TK_CONSTRAINT 115
+#define TK_DEFAULT 116
+#define TK_NULL 117
+#define TK_PRIMARY 118
+#define TK_UNIQUE 119
+#define TK_CHECK 120
+#define TK_REFERENCES 121
+#define TK_AUTOINCR 122
+#define TK_INSERT 123
+#define TK_DELETE 124
+#define TK_UPDATE 125
+#define TK_SET 126
+#define TK_DEFERRABLE 127
+#define TK_FOREIGN 128
+#define TK_DROP 129
+#define TK_UNION 130
+#define TK_ALL 131
+#define TK_EXCEPT 132
+#define TK_INTERSECT 133
+#define TK_SELECT 134
+#define TK_VALUES 135
+#define TK_DISTINCT 136
+#define TK_DOT 137
+#define TK_FROM 138
+#define TK_JOIN 139
+#define TK_USING 140
+#define TK_ORDER 141
+#define TK_GROUP 142
+#define TK_HAVING 143
+#define TK_LIMIT 144
+#define TK_WHERE 145
+#define TK_INTO 146
+#define TK_NOTHING 147
+#define TK_FLOAT 148
+#define TK_BLOB 149
+#define TK_INTEGER 150
+#define TK_VARIABLE 151
+#define TK_CASE 152
+#define TK_WHEN 153
+#define TK_THEN 154
+#define TK_ELSE 155
+#define TK_INDEX 156
+#define TK_ALTER 157
+#define TK_ADD 158
+#define TK_WINDOW 159
+#define TK_OVER 160
+#define TK_FILTER 161
+#define TK_COLUMN 162
+#define TK_AGG_FUNCTION 163
+#define TK_AGG_COLUMN 164
+#define TK_TRUEFALSE 165
+#define TK_ISNOT 166
+#define TK_FUNCTION 167
+#define TK_UMINUS 168
+#define TK_UPLUS 169
+#define TK_TRUTH 170
+#define TK_REGISTER 171
+#define TK_VECTOR 172
+#define TK_SELECT_COLUMN 173
+#define TK_IF_NULL_ROW 174
+#define TK_ASTERISK 175
+#define TK_SPAN 176
+#define TK_SPACE 177
+#define TK_ILLEGAL 178
/************** End of parse.h ***********************************************/
/************** Continuing where we left off in sqliteInt.h ******************/
@@ -13772,12 +14063,13 @@ typedef INT16_TYPE LogEst;
** at run-time.
*/
#ifndef SQLITE_BYTEORDER
-# if defined(i386) || defined(__i386__) || defined(_M_IX86) || \
- defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \
- defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \
- defined(__arm__) || defined(_M_ARM64)
+# if defined(i386) || defined(__i386__) || defined(_M_IX86) || \
+ defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \
+ defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \
+ defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
# define SQLITE_BYTEORDER 1234
-# elif defined(sparc) || defined(__ppc__)
+# elif defined(sparc) || defined(__ppc__) || \
+ defined(__ARMEB__) || defined(__AARCH64EB__)
# define SQLITE_BYTEORDER 4321
# else
# define SQLITE_BYTEORDER 0
@@ -13876,20 +14168,6 @@ typedef INT16_TYPE LogEst;
# define SQLITE_DEFAULT_MMAP_SIZE SQLITE_MAX_MMAP_SIZE
#endif
-/*
-** Only one of SQLITE_ENABLE_STAT3 or SQLITE_ENABLE_STAT4 can be defined.
-** Priority is given to SQLITE_ENABLE_STAT4. If either are defined, also
-** define SQLITE_ENABLE_STAT3_OR_STAT4
-*/
-#ifdef SQLITE_ENABLE_STAT4
-# undef SQLITE_ENABLE_STAT3
-# define SQLITE_ENABLE_STAT3_OR_STAT4 1
-#elif SQLITE_ENABLE_STAT3
-# define SQLITE_ENABLE_STAT3_OR_STAT4 1
-#elif SQLITE_ENABLE_STAT3_OR_STAT4
-# undef SQLITE_ENABLE_STAT3_OR_STAT4
-#endif
-
/*
** SELECTTRACE_ENABLED will be either 1 or 0 depending on whether or not
** the Select query generator tracing logic is turned on.
@@ -14398,9 +14676,6 @@ struct BtreePayload {
SQLITE_PRIVATE int sqlite3BtreeInsert(BtCursor*, const BtreePayload *pPayload,
int flags, int seekResult);
SQLITE_PRIVATE int sqlite3BtreeFirst(BtCursor*, int *pRes);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE void sqlite3BtreeSkipNext(BtCursor*);
-#endif
SQLITE_PRIVATE int sqlite3BtreeLast(BtCursor*, int *pRes);
SQLITE_PRIVATE int sqlite3BtreeNext(BtCursor*, int flags);
SQLITE_PRIVATE int sqlite3BtreeEof(BtCursor*);
@@ -14412,6 +14687,7 @@ SQLITE_PRIVATE i64 sqlite3BtreeOffset(BtCursor*);
SQLITE_PRIVATE int sqlite3BtreePayload(BtCursor*, u32 offset, u32 amt, void*);
SQLITE_PRIVATE const void *sqlite3BtreePayloadFetch(BtCursor*, u32 *pAmt);
SQLITE_PRIVATE u32 sqlite3BtreePayloadSize(BtCursor*);
+SQLITE_PRIVATE sqlite3_int64 sqlite3BtreeMaxRecordSize(BtCursor*);
SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*);
SQLITE_PRIVATE struct Pager *sqlite3BtreePager(Btree*);
@@ -14651,12 +14927,11 @@ typedef struct VdbeOpList VdbeOpList;
#endif
/*
-** The following macro converts a relative address in the p2 field
-** of a VdbeOp structure into a negative number so that
-** sqlite3VdbeAddOpList() knows that the address is relative. Calling
-** the macro again restores the address.
+** The following macro converts a label returned by sqlite3VdbeMakeLabel()
+** into an index into the Parse.aLabel[] array that contains the resolved
+** address of that label.
*/
-#define ADDR(X) (-1-(X))
+#define ADDR(X) (~(X))
/*
** The makefile scans the vdbe.c source file and creates the "opcodes.h"
@@ -14758,28 +15033,28 @@ typedef struct VdbeOpList VdbeOpList;
#define OP_Offset 89 /* synopsis: r[P3] = sqlite_offset(P1) */
#define OP_Column 90 /* synopsis: r[P3]=PX */
#define OP_Affinity 91 /* synopsis: affinity(r[P1@P2]) */
-#define OP_BitAnd 92 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */
-#define OP_BitOr 93 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */
-#define OP_ShiftLeft 94 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<>r[P1] */
-#define OP_Add 96 /* same as TK_PLUS, synopsis: r[P3]=r[P1]+r[P2] */
-#define OP_Subtract 97 /* same as TK_MINUS, synopsis: r[P3]=r[P2]-r[P1] */
-#define OP_Multiply 98 /* same as TK_STAR, synopsis: r[P3]=r[P1]*r[P2] */
-#define OP_Divide 99 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */
-#define OP_Remainder 100 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */
-#define OP_Concat 101 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */
-#define OP_MakeRecord 102 /* synopsis: r[P3]=mkrec(r[P1@P2]) */
-#define OP_BitNot 103 /* same as TK_BITNOT, synopsis: r[P2]= ~r[P1] */
-#define OP_Count 104 /* synopsis: r[P2]=count() */
-#define OP_ReadCookie 105
-#define OP_String8 106 /* same as TK_STRING, synopsis: r[P2]='P4' */
-#define OP_SetCookie 107
-#define OP_ReopenIdx 108 /* synopsis: root=P2 iDb=P3 */
-#define OP_OpenRead 109 /* synopsis: root=P2 iDb=P3 */
-#define OP_OpenWrite 110 /* synopsis: root=P2 iDb=P3 */
-#define OP_OpenDup 111
-#define OP_OpenAutoindex 112 /* synopsis: nColumn=P2 */
-#define OP_OpenEphemeral 113 /* synopsis: nColumn=P2 */
+#define OP_MakeRecord 92 /* synopsis: r[P3]=mkrec(r[P1@P2]) */
+#define OP_Count 93 /* synopsis: r[P2]=count() */
+#define OP_ReadCookie 94
+#define OP_SetCookie 95
+#define OP_ReopenIdx 96 /* synopsis: root=P2 iDb=P3 */
+#define OP_OpenRead 97 /* synopsis: root=P2 iDb=P3 */
+#define OP_OpenWrite 98 /* synopsis: root=P2 iDb=P3 */
+#define OP_BitAnd 99 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */
+#define OP_BitOr 100 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */
+#define OP_ShiftLeft 101 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<>r[P1] */
+#define OP_Add 103 /* same as TK_PLUS, synopsis: r[P3]=r[P1]+r[P2] */
+#define OP_Subtract 104 /* same as TK_MINUS, synopsis: r[P3]=r[P2]-r[P1] */
+#define OP_Multiply 105 /* same as TK_STAR, synopsis: r[P3]=r[P1]*r[P2] */
+#define OP_Divide 106 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */
+#define OP_Remainder 107 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */
+#define OP_Concat 108 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */
+#define OP_OpenDup 109
+#define OP_BitNot 110 /* same as TK_BITNOT, synopsis: r[P2]= ~r[P1] */
+#define OP_OpenAutoindex 111 /* synopsis: nColumn=P2 */
+#define OP_OpenEphemeral 112 /* synopsis: nColumn=P2 */
+#define OP_String8 113 /* same as TK_STRING, synopsis: r[P2]='P4' */
#define OP_SorterOpen 114
#define OP_SequenceTest 115 /* synopsis: if( cursor[P1].ctr++ ) pc = P2 */
#define OP_OpenPseudo 116 /* synopsis: P3 columns in r[P2] */
@@ -14789,57 +15064,56 @@ typedef struct VdbeOpList VdbeOpList;
#define OP_Sequence 120 /* synopsis: r[P2]=cursor[P1].ctr++ */
#define OP_NewRowid 121 /* synopsis: r[P2]=rowid */
#define OP_Insert 122 /* synopsis: intkey=r[P3] data=r[P2] */
-#define OP_InsertInt 123 /* synopsis: intkey=P3 data=r[P2] */
-#define OP_Delete 124
-#define OP_ResetCount 125
-#define OP_SorterCompare 126 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */
-#define OP_SorterData 127 /* synopsis: r[P2]=data */
-#define OP_RowData 128 /* synopsis: r[P2]=data */
-#define OP_Rowid 129 /* synopsis: r[P2]=rowid */
-#define OP_NullRow 130
-#define OP_SeekEnd 131
-#define OP_SorterInsert 132 /* synopsis: key=r[P2] */
-#define OP_IdxInsert 133 /* synopsis: key=r[P2] */
-#define OP_IdxDelete 134 /* synopsis: key=r[P2@P3] */
-#define OP_DeferredSeek 135 /* synopsis: Move P3 to P1.rowid if needed */
-#define OP_IdxRowid 136 /* synopsis: r[P2]=rowid */
-#define OP_Destroy 137
-#define OP_Clear 138
-#define OP_ResetSorter 139
-#define OP_CreateBtree 140 /* synopsis: r[P2]=root iDb=P1 flags=P3 */
-#define OP_Real 141 /* same as TK_FLOAT, synopsis: r[P2]=P4 */
-#define OP_SqlExec 142
-#define OP_ParseSchema 143
-#define OP_LoadAnalysis 144
-#define OP_DropTable 145
-#define OP_DropIndex 146
-#define OP_DropTrigger 147
-#define OP_IntegrityCk 148
-#define OP_RowSetAdd 149 /* synopsis: rowset(P1)=r[P2] */
-#define OP_Param 150
-#define OP_FkCounter 151 /* synopsis: fkctr[P1]+=P2 */
-#define OP_MemMax 152 /* synopsis: r[P1]=max(r[P1],r[P2]) */
-#define OP_OffsetLimit 153 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */
-#define OP_AggInverse 154 /* synopsis: accum=r[P3] inverse(r[P2@P5]) */
-#define OP_AggStep 155 /* synopsis: accum=r[P3] step(r[P2@P5]) */
-#define OP_AggStep1 156 /* synopsis: accum=r[P3] step(r[P2@P5]) */
-#define OP_AggValue 157 /* synopsis: r[P3]=value N=P2 */
-#define OP_AggFinal 158 /* synopsis: accum=r[P1] N=P2 */
-#define OP_Expire 159
-#define OP_TableLock 160 /* synopsis: iDb=P1 root=P2 write=P3 */
-#define OP_VBegin 161
-#define OP_VCreate 162
-#define OP_VDestroy 163
-#define OP_VOpen 164
-#define OP_VColumn 165 /* synopsis: r[P3]=vcolumn(P2) */
-#define OP_VRename 166
-#define OP_Pagecount 167
-#define OP_MaxPgcnt 168
-#define OP_Trace 169
-#define OP_CursorHint 170
-#define OP_Noop 171
-#define OP_Explain 172
-#define OP_Abortable 173
+#define OP_Delete 123
+#define OP_ResetCount 124
+#define OP_SorterCompare 125 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */
+#define OP_SorterData 126 /* synopsis: r[P2]=data */
+#define OP_RowData 127 /* synopsis: r[P2]=data */
+#define OP_Rowid 128 /* synopsis: r[P2]=rowid */
+#define OP_NullRow 129
+#define OP_SeekEnd 130
+#define OP_SorterInsert 131 /* synopsis: key=r[P2] */
+#define OP_IdxInsert 132 /* synopsis: key=r[P2] */
+#define OP_IdxDelete 133 /* synopsis: key=r[P2@P3] */
+#define OP_DeferredSeek 134 /* synopsis: Move P3 to P1.rowid if needed */
+#define OP_IdxRowid 135 /* synopsis: r[P2]=rowid */
+#define OP_Destroy 136
+#define OP_Clear 137
+#define OP_ResetSorter 138
+#define OP_CreateBtree 139 /* synopsis: r[P2]=root iDb=P1 flags=P3 */
+#define OP_SqlExec 140
+#define OP_ParseSchema 141
+#define OP_LoadAnalysis 142
+#define OP_DropTable 143
+#define OP_DropIndex 144
+#define OP_DropTrigger 145
+#define OP_IntegrityCk 146
+#define OP_RowSetAdd 147 /* synopsis: rowset(P1)=r[P2] */
+#define OP_Real 148 /* same as TK_FLOAT, synopsis: r[P2]=P4 */
+#define OP_Param 149
+#define OP_FkCounter 150 /* synopsis: fkctr[P1]+=P2 */
+#define OP_MemMax 151 /* synopsis: r[P1]=max(r[P1],r[P2]) */
+#define OP_OffsetLimit 152 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */
+#define OP_AggInverse 153 /* synopsis: accum=r[P3] inverse(r[P2@P5]) */
+#define OP_AggStep 154 /* synopsis: accum=r[P3] step(r[P2@P5]) */
+#define OP_AggStep1 155 /* synopsis: accum=r[P3] step(r[P2@P5]) */
+#define OP_AggValue 156 /* synopsis: r[P3]=value N=P2 */
+#define OP_AggFinal 157 /* synopsis: accum=r[P1] N=P2 */
+#define OP_Expire 158
+#define OP_TableLock 159 /* synopsis: iDb=P1 root=P2 write=P3 */
+#define OP_VBegin 160
+#define OP_VCreate 161
+#define OP_VDestroy 162
+#define OP_VOpen 163
+#define OP_VColumn 164 /* synopsis: r[P3]=vcolumn(P2) */
+#define OP_VRename 165
+#define OP_Pagecount 166
+#define OP_MaxPgcnt 167
+#define OP_Trace 168
+#define OP_CursorHint 169
+#define OP_Noop 170
+#define OP_Explain 171
+#define OP_Abortable 172
/* Properties such as "out2" or "jump" that are specified in
** comments following the "case" for each opcode in the vdbe.c
@@ -14863,17 +15137,17 @@ typedef struct VdbeOpList VdbeOpList;
/* 64 */ 0x00, 0x00, 0x02, 0x02, 0x08, 0x00, 0x10, 0x10,\
/* 72 */ 0x10, 0x10, 0x00, 0x10, 0x10, 0x00, 0x00, 0x10,\
/* 80 */ 0x10, 0x00, 0x00, 0x02, 0x02, 0x02, 0x00, 0x00,\
-/* 88 */ 0x12, 0x20, 0x00, 0x00, 0x26, 0x26, 0x26, 0x26,\
-/* 96 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x26, 0x00, 0x12,\
-/* 104 */ 0x10, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,\
-/* 112 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
+/* 88 */ 0x12, 0x20, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00,\
+/* 96 */ 0x00, 0x00, 0x00, 0x26, 0x26, 0x26, 0x26, 0x26,\
+/* 104 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x00, 0x12, 0x00,\
+/* 112 */ 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 120 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
-/* 128 */ 0x00, 0x10, 0x00, 0x00, 0x04, 0x04, 0x00, 0x00,\
-/* 136 */ 0x10, 0x10, 0x00, 0x00, 0x10, 0x10, 0x00, 0x00,\
-/* 144 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x10, 0x00,\
-/* 152 */ 0x04, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
-/* 160 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,\
-/* 168 */ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,}
+/* 128 */ 0x10, 0x00, 0x00, 0x04, 0x04, 0x00, 0x00, 0x10,\
+/* 136 */ 0x10, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,\
+/* 144 */ 0x00, 0x00, 0x00, 0x06, 0x10, 0x10, 0x00, 0x04,\
+/* 152 */ 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
+/* 160 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10,\
+/* 168 */ 0x00, 0x00, 0x00, 0x00, 0x00,}
/* The sqlite3P2Values() routine is able to run faster if it knows
** the value of the largest JUMP opcode. The smaller the maximum
@@ -14932,12 +15206,18 @@ SQLITE_PRIVATE int sqlite3VdbeExplainParent(Parse*);
# define ExplainQueryPlan(P)
# define ExplainQueryPlanPop(P)
# define ExplainQueryPlanParent(P) 0
+# define sqlite3ExplainBreakpoint(A,B) /*no-op*/
+#endif
+#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_EXPLAIN)
+SQLITE_PRIVATE void sqlite3ExplainBreakpoint(const char*,const char*);
+#else
+# define sqlite3ExplainBreakpoint(A,B) /*no-op*/
#endif
SQLITE_PRIVATE void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
-SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe*, u32 addr, u8);
-SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, u32 addr, int P1);
-SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, u32 addr, int P2);
-SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, u32 addr, int P3);
+SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe*, int addr, u8);
+SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1);
+SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2);
+SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, int addr, int P3);
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe*, u16 P5);
SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe*, int addr);
SQLITE_PRIVATE int sqlite3VdbeChangeToNoop(Vdbe*, int addr);
@@ -14947,7 +15227,7 @@ SQLITE_PRIVATE void sqlite3VdbeAppendP4(Vdbe*, void *pP4, int p4type);
SQLITE_PRIVATE void sqlite3VdbeSetP4KeyInfo(Parse*, Index*);
SQLITE_PRIVATE void sqlite3VdbeUsesBtree(Vdbe*, int);
SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe*, int);
-SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Vdbe*);
+SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Parse*);
SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeReusable(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeDelete(Vdbe*);
@@ -14968,6 +15248,10 @@ SQLITE_PRIVATE void sqlite3VdbeCountChanges(Vdbe*);
SQLITE_PRIVATE sqlite3 *sqlite3VdbeDb(Vdbe*);
SQLITE_PRIVATE u8 sqlite3VdbePrepareFlags(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeSetSql(Vdbe*, const char *z, int n, u8);
+#ifdef SQLITE_ENABLE_NORMALIZE
+SQLITE_PRIVATE void sqlite3VdbeAddDblquoteStr(sqlite3*,Vdbe*,const char*);
+SQLITE_PRIVATE int sqlite3VdbeUsesDoubleQuotedString(Vdbe*,const char*);
+#endif
SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe*,Vdbe*);
SQLITE_PRIVATE VdbeOp *sqlite3VdbeTakeOpArray(Vdbe*, int*, int*);
SQLITE_PRIVATE sqlite3_value *sqlite3VdbeGetBoundValue(Vdbe*, int, u8);
@@ -15278,9 +15562,6 @@ SQLITE_PRIVATE int sqlite3PagerWalSupported(Pager *pPager);
SQLITE_PRIVATE int sqlite3PagerWalCallback(Pager *pPager);
SQLITE_PRIVATE int sqlite3PagerOpenWal(Pager *pPager, int *pisOpen);
SQLITE_PRIVATE int sqlite3PagerCloseWal(Pager *pPager, sqlite3*);
-# ifdef SQLITE_DIRECT_OVERFLOW_READ
-SQLITE_PRIVATE int sqlite3PagerUseWal(Pager *pPager, Pgno);
-# endif
# ifdef SQLITE_ENABLE_SNAPSHOT
SQLITE_PRIVATE int sqlite3PagerSnapshotGet(Pager *pPager, sqlite3_snapshot **ppSnapshot);
SQLITE_PRIVATE int sqlite3PagerSnapshotOpen(Pager *pPager, sqlite3_snapshot *pSnapshot);
@@ -15288,8 +15569,10 @@ SQLITE_PRIVATE int sqlite3PagerSnapshotRecover(Pager *pPager);
SQLITE_PRIVATE int sqlite3PagerSnapshotCheck(Pager *pPager, sqlite3_snapshot *pSnapshot);
SQLITE_PRIVATE void sqlite3PagerSnapshotUnlock(Pager *pPager);
# endif
-#else
-# define sqlite3PagerUseWal(x,y) 0
+#endif
+
+#ifdef SQLITE_DIRECT_OVERFLOW_READ
+SQLITE_PRIVATE int sqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno);
#endif
#ifdef SQLITE_ENABLE_ZIPVFS
@@ -15534,6 +15817,10 @@ SQLITE_PRIVATE int sqlite3HeaderSizePcache1(void);
/* Number of dirty pages as a percentage of the configured cache size */
SQLITE_PRIVATE int sqlite3PCachePercentDirty(PCache*);
+#ifdef SQLITE_DIRECT_OVERFLOW_READ
+SQLITE_PRIVATE int sqlite3PCacheIsDirty(PCache *pCache);
+#endif
+
#endif /* _PCACHE_H_ */
/************** End of pcache.h **********************************************/
@@ -15887,6 +16174,7 @@ SQLITE_PRIVATE void sqlite3OsCloseFree(sqlite3_file *);
#define MUTEX_LOGIC(X)
#else
#define MUTEX_LOGIC(X) X
+SQLITE_API int sqlite3_mutex_held(sqlite3_mutex*);
#endif /* defined(SQLITE_MUTEX_OMIT) */
/************** End of mutex.h ***********************************************/
@@ -16039,12 +16327,14 @@ struct LookasideSlot {
** functions use a regular table table from hash.h.)
**
** Hash each FuncDef structure into one of the FuncDefHash.a[] slots.
-** Collisions are on the FuncDef.u.pHash chain.
+** Collisions are on the FuncDef.u.pHash chain. Use the SQLITE_FUNC_HASH()
+** macro to compute a hash on the function name.
*/
#define SQLITE_FUNC_HASH_SZ 23
struct FuncDefHash {
FuncDef *a[SQLITE_FUNC_HASH_SZ]; /* Hash table for functions */
};
+#define SQLITE_FUNC_HASH(C,L) (((C)+(L))%SQLITE_FUNC_HASH_SZ)
#ifdef SQLITE_USER_AUTHENTICATION
/*
@@ -16088,10 +16378,13 @@ SQLITE_PRIVATE void sqlite3CryptFunc(sqlite3_context*,int,sqlite3_value**);
/* This is an extra SQLITE_TRACE macro that indicates "legacy" tracing
** in the style of sqlite3_trace()
*/
-#define SQLITE_TRACE_LEGACY 0x80
+#define SQLITE_TRACE_LEGACY 0x40 /* Use the legacy xTrace */
+#define SQLITE_TRACE_XPROFILE 0x80 /* Use the legacy xProfile */
#else
-#define SQLITE_TRACE_LEGACY 0
+#define SQLITE_TRACE_LEGACY 0
+#define SQLITE_TRACE_XPROFILE 0
#endif /* SQLITE_OMIT_DEPRECATED */
+#define SQLITE_TRACE_NONLEGACY_MASK 0x0f /* Normal flags */
/*
@@ -16105,7 +16398,7 @@ struct sqlite3 {
Db *aDb; /* All backends */
int nDb; /* Number of backends currently in use */
u32 mDbFlags; /* flags recording internal state */
- u32 flags; /* flags settable by pragmas. See below */
+ u64 flags; /* flags settable by pragmas. See below */
i64 lastRowid; /* ROWID of most recent insert (see above) */
i64 szMmap; /* Default mmap_size setting */
u32 nSchemaLock; /* Do not reset the schema when non-zero */
@@ -16140,6 +16433,7 @@ struct sqlite3 {
unsigned orphanTrigger : 1; /* Last statement is orphaned TEMP trigger */
unsigned imposterTable : 1; /* Building an imposter table */
unsigned reopenMemdb : 1; /* ATTACH is really a reopen using MemDB */
+ char **azInit; /* "type", "name", and "tbl_name" columns */
} init;
int nVdbeActive; /* Number of VDBEs currently running */
int nVdbeRead; /* Number of active VDBEs that read or write */
@@ -16150,14 +16444,17 @@ struct sqlite3 {
void **aExtension; /* Array of shared library handles */
int (*xTrace)(u32,void*,void*,void*); /* Trace function */
void *pTraceArg; /* Argument to the trace function */
+#ifndef SQLITE_OMIT_DEPRECATED
void (*xProfile)(void*,const char*,u64); /* Profiling function */
void *pProfileArg; /* Argument to profile function */
+#endif
void *pCommitArg; /* Argument to xCommitCallback() */
int (*xCommitCallback)(void*); /* Invoked at every commit. */
void *pRollbackArg; /* Argument to xRollbackCallback() */
void (*xRollbackCallback)(void*); /* Invoked at every commit. */
void *pUpdateArg;
void (*xUpdateCallback)(void*,int, const char*,const char*,sqlite_int64);
+ Parse *pParse; /* Current parse */
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
void *pPreUpdateArg; /* First argument to xPreUpdateCallback */
void (*xPreUpdateCallback)( /* Registered using sqlite3_preupdate_hook() */
@@ -16271,14 +16568,21 @@ struct sqlite3 {
#define SQLITE_TriggerEQP 0x01000000 /* Show trigger EXPLAIN QUERY PLAN */
#define SQLITE_ResetDatabase 0x02000000 /* Reset the database */
#define SQLITE_LegacyAlter 0x04000000 /* Legacy ALTER TABLE behaviour */
+#define SQLITE_NoSchemaError 0x08000000 /* Do not report schema parse errors*/
+#define SQLITE_Defensive 0x10000000 /* Input SQL is likely hostile */
+#define SQLITE_DqsDDL 0x20000000 /* dbl-quoted strings allowed in DDL*/
+#define SQLITE_DqsDML 0x40000000 /* dbl-quoted strings allowed in DML*/
+#define SQLITE_EnableView 0x80000000 /* Enable the use of views */
/* Flags used only if debugging */
+#define HI(X) ((u64)(X)<<32)
#ifdef SQLITE_DEBUG
-#define SQLITE_SqlTrace 0x08000000 /* Debug print SQL as it executes */
-#define SQLITE_VdbeListing 0x10000000 /* Debug listings of VDBE programs */
-#define SQLITE_VdbeTrace 0x20000000 /* True to trace VDBE execution */
-#define SQLITE_VdbeAddopTrace 0x40000000 /* Trace sqlite3VdbeAddOp() calls */
-#define SQLITE_VdbeEQP 0x80000000 /* Debug EXPLAIN QUERY PLAN */
+#define SQLITE_SqlTrace HI(0x0100000) /* Debug print SQL as it executes */
+#define SQLITE_VdbeListing HI(0x0200000) /* Debug listings of VDBE progs */
+#define SQLITE_VdbeTrace HI(0x0400000) /* True to trace VDBE execution */
+#define SQLITE_VdbeAddopTrace HI(0x0800000) /* Trace sqlite3VdbeAddOp() calls */
+#define SQLITE_VdbeEQP HI(0x1000000) /* Debug EXPLAIN QUERY PLAN */
+#define SQLITE_ParserTrace HI(0x2000000) /* PRAGMA parser_trace=ON */
#endif
/*
@@ -16287,7 +16591,8 @@ struct sqlite3 {
#define DBFLAG_SchemaChange 0x0001 /* Uncommitted Hash table changes */
#define DBFLAG_PreferBuiltin 0x0002 /* Preference to built-in funcs */
#define DBFLAG_Vacuum 0x0004 /* Currently in a VACUUM */
-#define DBFLAG_SchemaKnownOk 0x0008 /* Schema is known to be valid */
+#define DBFLAG_VacuumInto 0x0008 /* Currently running VACUUM INTO */
+#define DBFLAG_SchemaKnownOk 0x0010 /* Schema is known to be valid */
/*
** Bits of the sqlite3.dbOptFlags field that are used by the
@@ -16295,7 +16600,7 @@ struct sqlite3 {
** selectively disable various optimizations.
*/
#define SQLITE_QueryFlattener 0x0001 /* Query flattening */
- /* 0x0002 available for reuse */
+#define SQLITE_WindowFunc 0x0002 /* Use xInverse for window functions */
#define SQLITE_GroupByOrder 0x0004 /* GROUPBY cover of ORDERBY */
#define SQLITE_FactorOutConst 0x0008 /* Constant factoring */
#define SQLITE_DistinctOpt 0x0010 /* DISTINCT using indexes */
@@ -16305,8 +16610,8 @@ struct sqlite3 {
#define SQLITE_OmitNoopJoin 0x0100 /* Omit unused tables in joins */
#define SQLITE_CountOfView 0x0200 /* The count-of-view optimization */
#define SQLITE_CursorHints 0x0400 /* Add OP_CursorHint opcodes */
-#define SQLITE_Stat34 0x0800 /* Use STAT3 or STAT4 data */
- /* TH3 expects the Stat34 ^^^^^^ value to be 0x0800. Don't change it */
+#define SQLITE_Stat4 0x0800 /* Use STAT4 data */
+ /* TH3 expects the Stat4 ^^^^^^ value to be 0x0800. Don't change it */
#define SQLITE_PushDown 0x1000 /* The push-down optimization */
#define SQLITE_SimplifyJoin 0x2000 /* Convert LEFT JOIN to JOIN */
#define SQLITE_SkipScan 0x4000 /* Skip-scans */
@@ -16394,6 +16699,7 @@ struct FuncDestructor {
** SQLITE_FUNC_LENGTH == OPFLAG_LENGTHARG
** SQLITE_FUNC_TYPEOF == OPFLAG_TYPEOFARG
** SQLITE_FUNC_CONSTANT == SQLITE_DETERMINISTIC from the API
+** SQLITE_FUNC_DIRECT == SQLITE_DIRECTONLY from the API
** SQLITE_FUNC_ENCMASK depends on SQLITE_UTF* macros in the API
*/
#define SQLITE_FUNC_ENCMASK 0x0003 /* SQLITE_UTF8, SQLITE_UTF16BE or UTF16LE */
@@ -16412,8 +16718,10 @@ struct FuncDestructor {
** single query - might change over time */
#define SQLITE_FUNC_AFFINITY 0x4000 /* Built-in affinity() function */
#define SQLITE_FUNC_OFFSET 0x8000 /* Built-in sqlite_offset() function */
-#define SQLITE_FUNC_WINDOW 0x10000 /* Built-in window-only function */
-#define SQLITE_FUNC_WINDOW_SIZE 0x20000 /* Requires partition size as arg. */
+#define SQLITE_FUNC_WINDOW 0x00010000 /* Built-in window-only function */
+#define SQLITE_FUNC_INTERNAL 0x00040000 /* For use by NestedParse() only */
+#define SQLITE_FUNC_DIRECT 0x00080000 /* Not for use in TRIGGERs or VIEWs */
+#define SQLITE_FUNC_SUBTYPE 0x00100000 /* Result likely to have sub-type */
/*
** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
@@ -16489,10 +16797,13 @@ struct FuncDestructor {
#define AGGREGATE2(zName, nArg, arg, nc, xStep, xFinal, extraFlags) \
{nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL)|extraFlags, \
SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xFinal,0,#zName, {0}}
-
#define WAGGREGATE(zName, nArg, arg, nc, xStep, xFinal, xValue, xInverse, f) \
{nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL)|f, \
SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xValue,xInverse,#zName, {0}}
+#define INTERNAL_FUNCTION(zName, nArg, xFunc) \
+ {nArg, SQLITE_FUNC_INTERNAL|SQLITE_UTF8|SQLITE_FUNC_CONSTANT, \
+ 0, 0, xFunc, 0, 0, 0, #zName, {0} }
+
/*
** All current savepoints are stored in a linked list starting at
@@ -16524,6 +16835,7 @@ struct Savepoint {
struct Module {
const sqlite3_module *pModule; /* Callback pointers */
const char *zName; /* Name passed to create_module() */
+ int nRefModule; /* Number of pointers to this object */
void *pAux; /* pAux passed to create_module() */
void (*xDestroy)(void *); /* Module destructor function */
Table *pEpoTab; /* Eponymous table for this module */
@@ -16589,11 +16901,12 @@ struct CollSeq {
** Note also that the numeric types are grouped together so that testing
** for a numeric type is a single comparison. And the BLOB type is first.
*/
-#define SQLITE_AFF_BLOB 'A'
-#define SQLITE_AFF_TEXT 'B'
-#define SQLITE_AFF_NUMERIC 'C'
-#define SQLITE_AFF_INTEGER 'D'
-#define SQLITE_AFF_REAL 'E'
+#define SQLITE_AFF_NONE 0x40 /* '@' */
+#define SQLITE_AFF_BLOB 0x41 /* 'A' */
+#define SQLITE_AFF_TEXT 0x42 /* 'B' */
+#define SQLITE_AFF_NUMERIC 0x43 /* 'C' */
+#define SQLITE_AFF_INTEGER 0x44 /* 'D' */
+#define SQLITE_AFF_REAL 0x45 /* 'E' */
#define sqlite3IsNumericAffinity(X) ((X)>=SQLITE_AFF_NUMERIC)
@@ -16727,6 +17040,7 @@ struct Table {
#define TF_StatsUsed 0x0100 /* Query planner decisions affected by
** Index.aiRowLogEst[] values */
#define TF_HasNotNull 0x0200 /* Contains NOT NULL constraints */
+#define TF_Shadow 0x0400 /* True for a shadow table */
/*
** Test to see whether or not a table is a virtual table. This is
@@ -16860,10 +17174,16 @@ struct KeyInfo {
u16 nKeyField; /* Number of key columns in the index */
u16 nAllField; /* Total columns, including key plus others */
sqlite3 *db; /* The database connection */
- u8 *aSortOrder; /* Sort order for each column. */
+ u8 *aSortFlags; /* Sort order for each column. */
CollSeq *aColl[1]; /* Collating sequence for each term of the key */
};
+/*
+** Allowed bit values for entries in the KeyInfo.aSortFlags[] array.
+*/
+#define KEYINFO_ORDER_DESC 0x01 /* DESC sort order */
+#define KEYINFO_ORDER_BIGNULL 0x02 /* NULL is larger than any other value */
+
/*
** This object holds a record which has been parsed out into individual
** fields, for the purposes of doing a comparison.
@@ -16962,7 +17282,7 @@ struct Index {
u16 nKeyCol; /* Number of columns forming the key */
u16 nColumn; /* Number of columns stored in the index */
u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
- unsigned idxType:2; /* 1==UNIQUE, 2==PRIMARY KEY, 0==CREATE INDEX */
+ unsigned idxType:2; /* 0:Normal 1:UNIQUE, 2:PRIMARY KEY, 3:IPK */
unsigned bUnordered:1; /* Use this index for == or IN queries only */
unsigned uniqNotNull:1; /* True if UNIQUE and NOT NULL for all columns */
unsigned isResized:1; /* True if resizeIndexObject() has been called */
@@ -16970,7 +17290,8 @@ struct Index {
unsigned noSkipScan:1; /* Do not try to use skip-scan if true */
unsigned hasStat1:1; /* aiRowLogEst values come from sqlite_stat1 */
unsigned bNoQuery:1; /* Do not use this index to optimize queries */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+ unsigned bAscKeyBug:1; /* True if the bba7b69f9849b5bf bug applies */
+#ifdef SQLITE_ENABLE_STAT4
int nSample; /* Number of elements in aSample[] */
int nSampleCol; /* Size of IndexSample.anEq[] and so on */
tRowcnt *aAvgEq; /* Average nEq values for keys not in aSample */
@@ -16987,6 +17308,7 @@ struct Index {
#define SQLITE_IDXTYPE_APPDEF 0 /* Created using CREATE INDEX */
#define SQLITE_IDXTYPE_UNIQUE 1 /* Implements a UNIQUE constraint */
#define SQLITE_IDXTYPE_PRIMARYKEY 2 /* Is the PRIMARY KEY for the table */
+#define SQLITE_IDXTYPE_IPK 3 /* INTEGER PRIMARY KEY index */
/* Return true if index X is a PRIMARY KEY index */
#define IsPrimaryKeyIndex(X) ((X)->idxType==SQLITE_IDXTYPE_PRIMARYKEY)
@@ -17001,7 +17323,7 @@ struct Index {
#define XN_EXPR (-2) /* Indexed column is an expression */
/*
-** Each sample stored in the sqlite_stat3 table is represented in memory
+** Each sample stored in the sqlite_stat4 table is represented in memory
** using a structure of this type. See documentation at the top of the
** analyze.c source file for additional information.
*/
@@ -17013,6 +17335,12 @@ struct IndexSample {
tRowcnt *anDLt; /* Est. number of distinct keys less than this sample */
};
+/*
+** Possible values to use within the flags argument to sqlite3GetToken().
+*/
+#define SQLITE_TOKEN_QUOTED 0x1 /* Token is a quoted identifier. */
+#define SQLITE_TOKEN_KEYWORD 0x2 /* Token is a keyword. */
+
/*
** Each token coming out of the lexer is an instance of
** this structure. Tokens are also used as part of an expression.
@@ -17153,7 +17481,7 @@ typedef int ynVar;
*/
struct Expr {
u8 op; /* Operation performed by this node */
- char affinity; /* The affinity of the column or 0 if not a column */
+ char affExpr; /* affinity, or RAISE type */
u32 flags; /* Various flags. EP_* See below */
union {
char *zToken; /* Token value. Zero terminated and dequoted */
@@ -17184,50 +17512,67 @@ struct Expr {
** TK_REGISTER: register number
** TK_TRIGGER: 1 -> new, 0 -> old
** EP_Unlikely: 134217728 times likelihood
+ ** TK_IN: ephemerial table holding RHS
+ ** TK_SELECT_COLUMN: Number of columns on the LHS
** TK_SELECT: 1st register of result vector */
ynVar iColumn; /* TK_COLUMN: column index. -1 for rowid.
** TK_VARIABLE: variable number (always >= 1).
** TK_SELECT_COLUMN: column of the result vector */
i16 iAgg; /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
i16 iRightJoinTable; /* If EP_FromJoin, the right table of the join */
- u8 op2; /* TK_REGISTER: original value of Expr.op
+ u8 op2; /* TK_REGISTER/TK_TRUTH: original value of Expr.op
** TK_COLUMN: the value of p5 for OP_Column
** TK_AGG_FUNCTION: nesting depth */
AggInfo *pAggInfo; /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
- Table *pTab; /* Table for TK_COLUMN expressions. Can be NULL
- ** for a column of an index on an expression */
-#ifndef SQLITE_OMIT_WINDOWFUNC
- Window *pWin; /* Window definition for window functions */
-#endif
+ union {
+ Table *pTab; /* TK_COLUMN: Table containing column. Can be NULL
+ ** for a column of an index on an expression */
+ Window *pWin; /* EP_WinFunc: Window/Filter defn for a function */
+ struct { /* TK_IN, TK_SELECT, and TK_EXISTS */
+ int iAddr; /* Subroutine entry address */
+ int regReturn; /* Register used to hold return address */
+ } sub;
+ } y;
};
/*
** The following are the meanings of bits in the Expr.flags field.
+** Value restrictions:
+**
+** EP_Agg == NC_HasAgg == SF_HasAgg
+** EP_Win == NC_HasWin
*/
-#define EP_FromJoin 0x000001 /* Originates in ON/USING clause of outer join */
-#define EP_Agg 0x000002 /* Contains one or more aggregate functions */
-#define EP_HasFunc 0x000004 /* Contains one or more functions of any kind */
-#define EP_FixedCol 0x000008 /* TK_Column with a known fixed value */
-#define EP_Distinct 0x000010 /* Aggregate function with DISTINCT keyword */
-#define EP_VarSelect 0x000020 /* pSelect is correlated, not constant */
-#define EP_DblQuoted 0x000040 /* token.z was originally in "..." */
-#define EP_InfixFunc 0x000080 /* True for an infix function: LIKE, GLOB, etc */
-#define EP_Collate 0x000100 /* Tree contains a TK_COLLATE operator */
-#define EP_Generic 0x000200 /* Ignore COLLATE or affinity on this tree */
-#define EP_IntValue 0x000400 /* Integer value contained in u.iValue */
-#define EP_xIsSelect 0x000800 /* x.pSelect is valid (otherwise x.pList is) */
-#define EP_Skip 0x001000 /* COLLATE, AS, or UNLIKELY */
-#define EP_Reduced 0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */
-#define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */
-#define EP_Static 0x008000 /* Held in memory not obtained from malloc() */
-#define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */
-#define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
-#define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */
-#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
-#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
-#define EP_Subquery 0x200000 /* Tree contains a TK_SELECT operator */
-#define EP_Alias 0x400000 /* Is an alias for a result set column */
-#define EP_Leaf 0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */
+#define EP_FromJoin 0x000001 /* Originates in ON/USING clause of outer join */
+#define EP_Distinct 0x000002 /* Aggregate function with DISTINCT keyword */
+#define EP_HasFunc 0x000004 /* Contains one or more functions of any kind */
+#define EP_FixedCol 0x000008 /* TK_Column with a known fixed value */
+#define EP_Agg 0x000010 /* Contains one or more aggregate functions */
+#define EP_VarSelect 0x000020 /* pSelect is correlated, not constant */
+#define EP_DblQuoted 0x000040 /* token.z was originally in "..." */
+#define EP_InfixFunc 0x000080 /* True for an infix function: LIKE, GLOB, etc */
+#define EP_Collate 0x000100 /* Tree contains a TK_COLLATE operator */
+ /* 0x000200 Available for reuse */
+#define EP_IntValue 0x000400 /* Integer value contained in u.iValue */
+#define EP_xIsSelect 0x000800 /* x.pSelect is valid (otherwise x.pList is) */
+#define EP_Skip 0x001000 /* Operator does not contribute to affinity */
+#define EP_Reduced 0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */
+#define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */
+#define EP_Win 0x008000 /* Contains window functions */
+#define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */
+#define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
+#define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */
+#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
+#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
+#define EP_Subquery 0x200000 /* Tree contains a TK_SELECT operator */
+#define EP_Alias 0x400000 /* Is an alias for a result set column */
+#define EP_Leaf 0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */
+#define EP_WinFunc 0x1000000 /* TK_FUNCTION with Expr.y.pWin set */
+#define EP_Subrtn 0x2000000 /* Uses Expr.y.sub. TK_IN, _SELECT, or _EXISTS */
+#define EP_Quoted 0x4000000 /* TK_ID was originally quoted */
+#define EP_Static 0x8000000 /* Held in memory not obtained from malloc() */
+#define EP_IsTrue 0x10000000 /* Always has boolean value of TRUE */
+#define EP_IsFalse 0x20000000 /* Always has boolean value of FALSE */
+#define EP_Indirect 0x40000000 /* Contained within a TRIGGER or a VIEW */
/*
** The EP_Propagate mask is a set of properties that automatically propagate
@@ -17243,6 +17588,8 @@ struct Expr {
#define ExprHasAllProperty(E,P) (((E)->flags&(P))==(P))
#define ExprSetProperty(E,P) (E)->flags|=(P)
#define ExprClearProperty(E,P) (E)->flags&=~(P)
+#define ExprAlwaysTrue(E) (((E)->flags&(EP_FromJoin|EP_IsTrue))==EP_IsTrue)
+#define ExprAlwaysFalse(E) (((E)->flags&(EP_FromJoin|EP_IsFalse))==EP_IsFalse)
/* The ExprSetVVAProperty() macro is used for Verification, Validation,
** and Accreditation only. It works like ExprSetProperty() during VVA
@@ -17269,6 +17616,18 @@ struct Expr {
*/
#define EXPRDUP_REDUCE 0x0001 /* Used reduced-size Expr nodes */
+/*
+** True if the expression passed as an argument was a function with
+** an OVER() clause (a window function).
+*/
+#ifdef SQLITE_OMIT_WINDOWFUNC
+# define IsWindowFunc(p) 0
+#else
+# define IsWindowFunc(p) ( \
+ ExprHasProperty((p), EP_WinFunc) && p->y.pWin->eFrmType!=TK_FILTER \
+ )
+#endif
+
/*
** A list of expressions. Each expression may optionally have a
** name. An expr/name combination can be used in several ways, such
@@ -17291,11 +17650,12 @@ struct ExprList {
Expr *pExpr; /* The parse tree for this expression */
char *zName; /* Token associated with this expression */
char *zSpan; /* Original text of the expression */
- u8 sortOrder; /* 1 for DESC or 0 for ASC */
+ u8 sortFlags; /* Mask of KEYINFO_ORDER_* flags */
unsigned done :1; /* A flag to indicate when processing is finished */
unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */
unsigned reusable :1; /* Constant expression is reusable */
unsigned bSorterRef :1; /* Defer evaluation until after sorting */
+ unsigned bNulls: 1; /* True if explicit "NULLS FIRST/LAST" */
union {
struct {
u16 iOrderByCol; /* For ORDER BY, column number in result set */
@@ -17459,7 +17819,7 @@ struct NameContext {
NameContext *pNext; /* Next outer name context. NULL for outermost */
int nRef; /* Number of names resolved by this context */
int nErr; /* Number of errors encountered while resolving names */
- u16 ncFlags; /* Zero or more NC_* flags defined below */
+ int ncFlags; /* Zero or more NC_* flags defined below */
Select *pWinSelect; /* SELECT statement for any window functions */
};
@@ -17467,8 +17827,9 @@ struct NameContext {
** Allowed values for the NameContext, ncFlags field.
**
** Value constraints (all checked via assert()):
-** NC_HasAgg == SF_HasAgg
+** NC_HasAgg == SF_HasAgg == EP_Agg
** NC_MinMaxAgg == SF_MinMaxAgg == SQLITE_FUNC_MINMAX
+** NC_HasWin == EP_Win
**
*/
#define NC_AllowAgg 0x0001 /* Aggregate functions are allowed here */
@@ -17484,6 +17845,8 @@ struct NameContext {
#define NC_MinMaxAgg 0x1000 /* min/max aggregates seen. See note above */
#define NC_Complex 0x2000 /* True if a function or subquery seen */
#define NC_AllowWin 0x4000 /* Window functions are allowed here */
+#define NC_HasWin 0x8000 /* One or more window functions seen */
+#define NC_IsDDL 0x10000 /* Resolving names in a CREATE statement */
/*
** An instance of the following object describes a single ON CONFLICT
@@ -17583,6 +17946,7 @@ struct Select {
#define SF_Converted 0x10000 /* By convertCompoundSelectToSubquery() */
#define SF_IncludeHidden 0x20000 /* Include hidden columns in output */
#define SF_ComplexResult 0x40000 /* Result contains subquery or function */
+#define SF_WhereBegin 0x80000 /* Really a WhereBegin() call. Debug Only */
/*
** The results of a SELECT can be distributed in several ways, as defined
@@ -17771,16 +18135,17 @@ struct Parse {
u8 hasCompound; /* Need to invoke convertCompoundSelectToSubquery() */
u8 okConstFactor; /* OK to factor out constants */
u8 disableLookaside; /* Number of times lookaside has been disabled */
+ u8 disableVtab; /* Disable all virtual tables for this parse */
int nRangeReg; /* Size of the temporary register block */
int iRangeReg; /* First register in temporary register block */
int nErr; /* Number of errors seen */
int nTab; /* Number of previously allocated VDBE cursors */
int nMem; /* Number of memory cells used so far */
- int nOpAlloc; /* Number of slots allocated for Vdbe.aOp[] */
int szOpAlloc; /* Bytes of memory space allocated for Vdbe.aOp[] */
int iSelfTab; /* Table associated with an index on expr, or negative
** of the base register during check-constraint eval */
- int nLabel; /* Number of labels used */
+ int nLabel; /* The *negative* of the number of labels used */
+ int nLabelAlloc; /* Number of slots in aLabel */
int *aLabel; /* Space to hold the labels */
ExprList *pConstExpr;/* Constant expressions */
Token constraintName;/* Name of the constraint currently being parsed */
@@ -17797,6 +18162,7 @@ struct Parse {
AutoincInfo *pAinc; /* Information about AUTOINCREMENT counters */
Parse *pToplevel; /* Parse structure for main program (or NULL) */
Table *pTriggerTab; /* Table triggers are being coded for */
+ Parse *pParentParse; /* Parent parser if this parser is nested */
int addrCrTab; /* Address of OP_CreateBtree opcode on CREATE TABLE */
u32 nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */
u32 oldmask; /* Mask of old.* columns referenced */
@@ -17840,7 +18206,9 @@ struct Parse {
Vdbe *pReprepare; /* VM being reprepared (sqlite3Reprepare()) */
const char *zTail; /* All SQL text past the last semicolon parsed */
Table *pNewTable; /* A table being constructed by CREATE TABLE */
- Index *pNewIndex; /* An index being constructed by CREATE INDEX */
+ Index *pNewIndex; /* An index being constructed by CREATE INDEX.
+ ** Also used to hold redundant UNIQUE constraints
+ ** during a RENAME COLUMN */
Trigger *pNewTrigger; /* Trigger under construct by a CREATE TRIGGER */
const char *zAuthContext; /* The 6th parameter to db->xAuth callbacks */
#ifndef SQLITE_OMIT_VIRTUALTABLE
@@ -17913,6 +18281,7 @@ struct AuthContext {
*/
#define OPFLAG_NCHANGE 0x01 /* OP_Insert: Set to update db->nChange */
/* Also used in P2 (not P5) of OP_Delete */
+#define OPFLAG_NOCHNG 0x01 /* OP_VColumn nochange for UPDATE */
#define OPFLAG_EPHEM 0x01 /* OP_Column: Ephemeral output is ok */
#define OPFLAG_LASTROWID 0x20 /* Set to update db->lastRowid */
#define OPFLAG_ISUPDATE 0x04 /* This OP_Insert is an sql UPDATE */
@@ -18067,6 +18436,7 @@ typedef struct {
int iDb; /* 0 for main database. 1 for TEMP, 2.. for ATTACHed */
int rc; /* Result code stored here */
u32 mInitFlags; /* Flags controlling error messages */
+ u32 nInitRow; /* Number of rows processed */
} InitData;
/*
@@ -18081,11 +18451,12 @@ typedef struct {
*/
struct Sqlite3Config {
int bMemstat; /* True to enable memory status */
- int bCoreMutex; /* True to enable core mutexing */
- int bFullMutex; /* True to enable full mutexing */
- int bOpenUri; /* True to interpret filenames as URIs */
- int bUseCis; /* Use covering indices for full-scans */
- int bSmallMalloc; /* Avoid large memory allocations if true */
+ u8 bCoreMutex; /* True to enable core mutexing */
+ u8 bFullMutex; /* True to enable full mutexing */
+ u8 bOpenUri; /* True to interpret filenames as URIs */
+ u8 bUseCis; /* Use covering indices for full-scans */
+ u8 bSmallMalloc; /* Avoid large memory allocations if true */
+ u8 bExtraSchemaChecks; /* Verify type,name,tbl_name in schema */
int mxStrlen; /* Maximum string length */
int neverCorrupt; /* Database is always well-formed */
int szLookaside; /* Default lookaside buffer size */
@@ -18127,12 +18498,17 @@ struct Sqlite3Config {
void (*xVdbeBranch)(void*,unsigned iSrcLine,u8 eThis,u8 eMx); /* Callback */
void *pVdbeBranchArg; /* 1st argument */
#endif
+#ifdef SQLITE_ENABLE_DESERIALIZE
+ sqlite3_int64 mxMemdbSize; /* Default max memdb size */
+#endif
#ifndef SQLITE_UNTESTABLE
int (*xTestCallback)(int); /* Invoked by sqlite3FaultSim() */
#endif
int bLocaltimeFault; /* True to fail localtime() calls */
+ int bInternalFunctions; /* Internal SQL functions are visible */
int iOnceResetThreshold; /* When to reset OP_Once counters */
u32 szSorterRef; /* Min size in bytes to use sorter-refs */
+ unsigned int iPrngSeed; /* Alternative fixed seed for the PRNG */
};
/*
@@ -18229,10 +18605,11 @@ struct TreeView {
#endif /* SQLITE_DEBUG */
/*
-** This object is used in varioius ways, all related to window functions
+** This object is used in various ways, most (but not all) related to window
+** functions.
**
** (1) A single instance of this structure is attached to the
-** the Expr.pWin field for each window function in an expression tree.
+** the Expr.y.pWin field for each window function in an expression tree.
** This object holds the information contained in the OVER clause,
** plus additional fields used during code generation.
**
@@ -18243,39 +18620,53 @@ struct TreeView {
** (3) The terms of the WINDOW clause of a SELECT are instances of this
** object on a linked list attached to Select.pWinDefn.
**
+** (4) For an aggregate function with a FILTER clause, an instance
+** of this object is stored in Expr.y.pWin with eFrmType set to
+** TK_FILTER. In this case the only field used is Window.pFilter.
+**
** The uses (1) and (2) are really the same Window object that just happens
-** to be accessible in two different ways. Use (3) is are separate objects.
+** to be accessible in two different ways. Use case (3) are separate objects.
*/
struct Window {
char *zName; /* Name of window (may be NULL) */
+ char *zBase; /* Name of base window for chaining (may be NULL) */
ExprList *pPartition; /* PARTITION BY clause */
ExprList *pOrderBy; /* ORDER BY clause */
- u8 eType; /* TK_RANGE or TK_ROWS */
+ u8 eFrmType; /* TK_RANGE, TK_GROUPS, TK_ROWS, or 0 */
u8 eStart; /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
u8 eEnd; /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
+ u8 bImplicitFrame; /* True if frame was implicitly specified */
+ u8 eExclude; /* TK_NO, TK_CURRENT, TK_TIES, TK_GROUP, or 0 */
Expr *pStart; /* Expression for " PRECEDING" */
Expr *pEnd; /* Expression for " FOLLOWING" */
+ Window **ppThis; /* Pointer to this object in Select.pWin list */
Window *pNextWin; /* Next window function belonging to this SELECT */
Expr *pFilter; /* The FILTER expression */
FuncDef *pFunc; /* The function */
int iEphCsr; /* Partition buffer or Peer buffer */
- int regAccum;
- int regResult;
+ int regAccum; /* Accumulator */
+ int regResult; /* Interim result */
int csrApp; /* Function cursor (used by min/max) */
int regApp; /* Function register (also used by min/max) */
- int regPart; /* First in a set of registers holding PARTITION BY
- ** and ORDER BY values for the window */
+ int regPart; /* Array of registers for PARTITION BY values */
Expr *pOwner; /* Expression object this window is attached to */
int nBufferCol; /* Number of columns in buffer table */
int iArgCol; /* Offset of first argument for this function */
+ int regOne; /* Register containing constant value 1 */
+ int regStartRowid;
+ int regEndRowid;
+ u8 bExprArgs; /* Defer evaluation of window function arguments
+ ** due to the SQLITE_SUBTYPE flag */
};
#ifndef SQLITE_OMIT_WINDOWFUNC
SQLITE_PRIVATE void sqlite3WindowDelete(sqlite3*, Window*);
+SQLITE_PRIVATE void sqlite3WindowUnlinkFromSelect(Window*);
SQLITE_PRIVATE void sqlite3WindowListDelete(sqlite3 *db, Window *p);
-SQLITE_PRIVATE Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*);
+SQLITE_PRIVATE Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8);
SQLITE_PRIVATE void sqlite3WindowAttach(Parse*, Expr*, Window*);
-SQLITE_PRIVATE int sqlite3WindowCompare(Parse*, Window*, Window*);
+SQLITE_PRIVATE void sqlite3WindowLink(Select *pSel, Window *pWin);
+SQLITE_PRIVATE int sqlite3WindowCompare(Parse*, Window*, Window*, int);
SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse*, Window*);
SQLITE_PRIVATE void sqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int);
SQLITE_PRIVATE int sqlite3WindowRewrite(Parse*, Select*);
@@ -18284,6 +18675,8 @@ SQLITE_PRIVATE void sqlite3WindowUpdate(Parse*, Window*, Window*, FuncDef*);
SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p);
SQLITE_PRIVATE Window *sqlite3WindowListDup(sqlite3 *db, Window *p);
SQLITE_PRIVATE void sqlite3WindowFunctions(void);
+SQLITE_PRIVATE void sqlite3WindowChain(Parse*, Window*, Window*);
+SQLITE_PRIVATE Window *sqlite3WindowAssemble(Parse*, Window*, ExprList*, ExprList*, Token*);
#else
# define sqlite3WindowDelete(a,b)
# define sqlite3WindowFunctions()
@@ -18384,6 +18777,7 @@ SQLITE_PRIVATE int sqlite3IsIdChar(u8);
*/
SQLITE_PRIVATE int sqlite3StrICmp(const char*,const char*);
SQLITE_PRIVATE int sqlite3Strlen30(const char*);
+#define sqlite3Strlen30NN(C) (strlen(C)&0x3fffffff)
SQLITE_PRIVATE char *sqlite3ColumnType(Column*,char*);
#define sqlite3StrNICmp sqlite3_strnicmp
@@ -18472,8 +18866,12 @@ SQLITE_PRIVATE void sqlite3MutexWarnOnContention(sqlite3_mutex*);
#endif
#ifndef SQLITE_OMIT_FLOATING_POINT
+# define EXP754 (((u64)0x7ff)<<52)
+# define MAN754 ((((u64)1)<<52)-1)
+# define IsNaN(X) (((X)&EXP754)==EXP754 && ((X)&MAN754)!=0)
SQLITE_PRIVATE int sqlite3IsNaN(double);
#else
+# define IsNaN(X) 0
# define sqlite3IsNaN(X) 0
#endif
@@ -18500,6 +18898,7 @@ SQLITE_PRIVATE void *sqlite3TestTextToPtr(const char*);
SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView*, const Expr*, u8);
SQLITE_PRIVATE void sqlite3TreeViewBareExprList(TreeView*, const ExprList*, const char*);
SQLITE_PRIVATE void sqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*);
+SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView*, const SrcList*);
SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView*, const Select*, u8);
SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView*, const With*, u8);
#ifndef SQLITE_OMIT_WINDOWFUNC
@@ -18511,7 +18910,9 @@ SQLITE_PRIVATE void sqlite3TreeViewWinFunc(TreeView*, const Window*, u8);
SQLITE_PRIVATE void sqlite3SetString(char **, sqlite3*, const char*);
SQLITE_PRIVATE void sqlite3ErrorMsg(Parse*, const char*, ...);
+SQLITE_PRIVATE int sqlite3ErrorToParser(sqlite3*,int);
SQLITE_PRIVATE void sqlite3Dequote(char*);
+SQLITE_PRIVATE void sqlite3DequoteExpr(Expr*);
SQLITE_PRIVATE void sqlite3TokenInit(Token*,char*);
SQLITE_PRIVATE int sqlite3KeywordCode(const unsigned char*, int);
SQLITE_PRIVATE int sqlite3RunParser(Parse*, const char*, char **);
@@ -18529,17 +18930,20 @@ SQLITE_PRIVATE Expr *sqlite3Expr(sqlite3*,int,const char*);
SQLITE_PRIVATE void sqlite3ExprAttachSubtrees(sqlite3*,Expr*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3PExpr(Parse*, int, Expr*, Expr*);
SQLITE_PRIVATE void sqlite3PExprAddSelect(Parse*, Expr*, Select*);
-SQLITE_PRIVATE Expr *sqlite3ExprAnd(sqlite3*,Expr*, Expr*);
+SQLITE_PRIVATE Expr *sqlite3ExprAnd(Parse*,Expr*, Expr*);
+SQLITE_PRIVATE Expr *sqlite3ExprSimplifiedAndOr(Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, Token*, int);
SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*, u32);
SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*);
+SQLITE_PRIVATE void sqlite3ExprUnmapAndDelete(Parse*, Expr*);
SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*);
SQLITE_PRIVATE ExprList *sqlite3ExprListAppendVector(Parse*,ExprList*,IdList*,Expr*);
-SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList*,int);
+SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList*,int,int);
SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,const char*,const char*);
SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*);
SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList*);
+SQLITE_PRIVATE int sqlite3IndexHasDuplicateRootPage(Index*);
SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**);
SQLITE_PRIVATE int sqlite3InitCallback(void*, int, char**, char**);
SQLITE_PRIVATE int sqlite3InitOne(sqlite3*, int, char**, u32);
@@ -18553,8 +18957,8 @@ SQLITE_PRIVATE void sqlite3CollapseDatabaseArray(sqlite3*);
SQLITE_PRIVATE void sqlite3CommitInternalChanges(sqlite3*);
SQLITE_PRIVATE void sqlite3DeleteColumnNames(sqlite3*,Table*);
SQLITE_PRIVATE int sqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**);
-SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*);
-SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse*,Select*);
+SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*,char);
+SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse*,Select*,char);
SQLITE_PRIVATE void sqlite3OpenMasterTable(Parse *, int);
SQLITE_PRIVATE Index *sqlite3PrimaryKeyIndex(Table*);
SQLITE_PRIVATE i16 sqlite3ColumnOfIndex(Index*, i16);
@@ -18573,6 +18977,11 @@ SQLITE_PRIVATE void sqlite3AddCollateType(Parse*, Token*);
SQLITE_PRIVATE void sqlite3EndTable(Parse*,Token*,Token*,u8,Select*);
SQLITE_PRIVATE int sqlite3ParseUri(const char*,const char*,unsigned int*,
sqlite3_vfs**,char**,char **);
+#ifdef SQLITE_HAS_CODEC
+SQLITE_PRIVATE int sqlite3CodecQueryParameters(sqlite3*,const char*,const char*);
+#else
+# define sqlite3CodecQueryParameters(A,B,C) 0
+#endif
SQLITE_PRIVATE Btree *sqlite3DbNameToBtree(sqlite3*,const char*);
#ifdef SQLITE_UNTESTABLE
@@ -18625,8 +19034,8 @@ SQLITE_PRIVATE void sqlite3Insert(Parse*, SrcList*, Select*, IdList*, int, Upser
SQLITE_PRIVATE void *sqlite3ArrayAllocate(sqlite3*,void*,int,int*,int*);
SQLITE_PRIVATE IdList *sqlite3IdListAppend(Parse*, IdList*, Token*);
SQLITE_PRIVATE int sqlite3IdListIndex(IdList*,const char*);
-SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(sqlite3*, SrcList*, int, int);
-SQLITE_PRIVATE SrcList *sqlite3SrcListAppend(sqlite3*, SrcList*, Token*, Token*);
+SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(Parse*, SrcList*, int, int);
+SQLITE_PRIVATE SrcList *sqlite3SrcListAppend(Parse*, SrcList*, Token*, Token*);
SQLITE_PRIVATE SrcList *sqlite3SrcListAppendFromTerm(Parse*, SrcList*, Token*, Token*,
Token*, Select*, Expr*, IdList*);
SQLITE_PRIVATE void sqlite3SrcListIndexedBy(Parse *, SrcList *, Token *);
@@ -18693,8 +19102,8 @@ SQLITE_PRIVATE Table *sqlite3LocateTableItem(Parse*,u32 flags,struct SrcList_ite
SQLITE_PRIVATE Index *sqlite3FindIndex(sqlite3*,const char*, const char*);
SQLITE_PRIVATE void sqlite3UnlinkAndDeleteTable(sqlite3*,int,const char*);
SQLITE_PRIVATE void sqlite3UnlinkAndDeleteIndex(sqlite3*,int,const char*);
-SQLITE_PRIVATE void sqlite3Vacuum(Parse*,Token*);
-SQLITE_PRIVATE int sqlite3RunVacuum(char**, sqlite3*, int);
+SQLITE_PRIVATE void sqlite3Vacuum(Parse*,Token*,Expr*);
+SQLITE_PRIVATE int sqlite3RunVacuum(char**, sqlite3*, int, sqlite3_value*);
SQLITE_PRIVATE char *sqlite3NameFromToken(sqlite3*, Token*);
SQLITE_PRIVATE int sqlite3ExprCompare(Parse*,Expr*, Expr*, int);
SQLITE_PRIVATE int sqlite3ExprCompareSkip(Expr*, Expr*, int);
@@ -18737,6 +19146,7 @@ SQLITE_PRIVATE void sqlite3GenerateRowDelete(
SQLITE_PRIVATE void sqlite3GenerateRowIndexDelete(Parse*, Table*, int, int, int*, int);
SQLITE_PRIVATE int sqlite3GenerateIndexKey(Parse*, Index*, int, int, int, int*,Index*,int);
SQLITE_PRIVATE void sqlite3ResolvePartIdxLabel(Parse*,int);
+SQLITE_PRIVATE int sqlite3ExprReferencesUpdatedColumn(Expr*,int*,int);
SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(Parse*,Table*,int*,int,int,int,int,
u8,u8,int,int*,int*,Upsert*);
#ifdef SQLITE_ENABLE_NULL_TRIM
@@ -18757,6 +19167,7 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3*,IdList*);
SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3*,Select*,int);
+SQLITE_PRIVATE FuncDef *sqlite3FunctionSearch(int,const char*);
SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(FuncDef*,int);
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,u8,u8);
SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void);
@@ -18833,6 +19244,7 @@ SQLITE_PRIVATE int sqlite3FixSelect(DbFixer*, Select*);
SQLITE_PRIVATE int sqlite3FixExpr(DbFixer*, Expr*);
SQLITE_PRIVATE int sqlite3FixExprList(DbFixer*, ExprList*);
SQLITE_PRIVATE int sqlite3FixTriggerStep(DbFixer*, TriggerStep*);
+SQLITE_PRIVATE int sqlite3RealSameAsInt(double,sqlite3_int64);
SQLITE_PRIVATE int sqlite3AtoF(const char *z, double*, int, u8);
SQLITE_PRIVATE int sqlite3GetInt32(const char *, int*);
SQLITE_PRIVATE int sqlite3Atoi(const char*);
@@ -18847,7 +19259,7 @@ SQLITE_PRIVATE LogEst sqlite3LogEstAdd(LogEst,LogEst);
SQLITE_PRIVATE LogEst sqlite3LogEstFromDouble(double);
#endif
#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
- defined(SQLITE_ENABLE_STAT3_OR_STAT4) || \
+ defined(SQLITE_ENABLE_STAT4) || \
defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
SQLITE_PRIVATE u64 sqlite3LogEstToInt(LogEst);
#endif
@@ -18913,8 +19325,10 @@ SQLITE_PRIVATE int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr*);
+SQLITE_PRIVATE Expr *sqlite3ExprSkipCollateAndLikely(Expr*);
SQLITE_PRIVATE int sqlite3CheckCollSeq(Parse *, CollSeq *);
-SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *, const char *);
+SQLITE_PRIVATE int sqlite3WritableSchema(sqlite3*);
+SQLITE_PRIVATE int sqlite3CheckObjectName(Parse*, const char*,const char*,const char*);
SQLITE_PRIVATE void sqlite3VdbeSetChanges(sqlite3 *, int);
SQLITE_PRIVATE int sqlite3AddInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3SubInt64(i64*,i64);
@@ -18933,6 +19347,9 @@ SQLITE_PRIVATE void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8,
void(*)(void*));
SQLITE_PRIVATE void sqlite3ValueSetNull(sqlite3_value*);
SQLITE_PRIVATE void sqlite3ValueFree(sqlite3_value*);
+#ifndef SQLITE_UNTESTABLE
+SQLITE_PRIVATE void sqlite3ResultIntReal(sqlite3_context*);
+#endif
SQLITE_PRIVATE sqlite3_value *sqlite3ValueNew(sqlite3 *);
#ifndef SQLITE_OMIT_UTF16
SQLITE_PRIVATE char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8);
@@ -18944,7 +19361,6 @@ SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[];
SQLITE_PRIVATE const char sqlite3StrBINARY[];
SQLITE_PRIVATE const unsigned char sqlite3UpperToLower[];
SQLITE_PRIVATE const unsigned char sqlite3CtypeMap[];
-SQLITE_PRIVATE const Token sqlite3IntTokens[];
SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config;
SQLITE_PRIVATE FuncDefHash sqlite3BuiltinFunctions;
#ifndef SQLITE_OMIT_WSD
@@ -18962,14 +19378,15 @@ SQLITE_PRIVATE void sqlite3AlterRenameColumn(Parse*, SrcList*, Token*, Token*);
SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *);
SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...);
SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*, int);
-SQLITE_PRIVATE int sqlite3CodeSubselect(Parse*, Expr *, int, int);
+SQLITE_PRIVATE void sqlite3CodeRhsOfIN(Parse*, Expr*, int);
+SQLITE_PRIVATE int sqlite3CodeSubselect(Parse*, Expr*);
SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*);
SQLITE_PRIVATE void sqlite3SelectWrongNumTermsError(Parse *pParse, Select *p);
SQLITE_PRIVATE int sqlite3MatchSpanName(const char*, const char*, const char*, const char*);
SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*);
SQLITE_PRIVATE int sqlite3ResolveExprListNames(NameContext*, ExprList*);
SQLITE_PRIVATE void sqlite3ResolveSelectNames(Parse*, Select*, NameContext*);
-SQLITE_PRIVATE void sqlite3ResolveSelfReference(Parse*,Table*,int,Expr*,ExprList*);
+SQLITE_PRIVATE int sqlite3ResolveSelfReference(Parse*,Table*,int,Expr*,ExprList*);
SQLITE_PRIVATE int sqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char*);
SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *, Table *, int, int);
SQLITE_PRIVATE void sqlite3AlterFinishAddColumn(Parse *, Token *);
@@ -18997,6 +19414,7 @@ SQLITE_PRIVATE void sqlite3KeyInfoUnref(KeyInfo*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoRef(KeyInfo*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoOfIndex(Parse*, Index*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoFromExprList(Parse*, ExprList*, int, int);
+SQLITE_PRIVATE int sqlite3HasExplicitNulls(Parse*, ExprList*);
#ifdef SQLITE_DEBUG
SQLITE_PRIVATE int sqlite3KeyInfoIsWriteable(KeyInfo*);
@@ -19029,8 +19447,7 @@ SQLITE_PRIVATE int sqlite3ExprCheckIN(Parse*, Expr*);
# define sqlite3ExprCheckIN(x,y) SQLITE_OK
#endif
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
-SQLITE_PRIVATE void sqlite3AnalyzeFunctions(void);
+#ifdef SQLITE_ENABLE_STAT4
SQLITE_PRIVATE int sqlite3Stat4ProbeSetValue(
Parse*,Index*,UnpackedRecord**,Expr*,int,int,int*);
SQLITE_PRIVATE int sqlite3Stat4ValueFromExpr(Parse*, Expr*, u8, sqlite3_value**);
@@ -19077,6 +19494,7 @@ SQLITE_PRIVATE int sqlite3Utf8To8(unsigned char*);
# define sqlite3VtabInSync(db) 0
# define sqlite3VtabLock(X)
# define sqlite3VtabUnlock(X)
+# define sqlite3VtabModuleUnref(D,X)
# define sqlite3VtabUnlockList(X)
# define sqlite3VtabSavepoint(X, Y, Z) SQLITE_OK
# define sqlite3GetVTable(X,Y) ((VTable*)0)
@@ -19088,6 +19506,7 @@ SQLITE_PRIVATE int sqlite3VtabRollback(sqlite3 *db);
SQLITE_PRIVATE int sqlite3VtabCommit(sqlite3 *db);
SQLITE_PRIVATE void sqlite3VtabLock(VTable *);
SQLITE_PRIVATE void sqlite3VtabUnlock(VTable *);
+SQLITE_PRIVATE void sqlite3VtabModuleUnref(sqlite3*,Module*);
SQLITE_PRIVATE void sqlite3VtabUnlockList(sqlite3*);
SQLITE_PRIVATE int sqlite3VtabSavepoint(sqlite3 *, int, int);
SQLITE_PRIVATE void sqlite3VtabImportErrmsg(Vdbe*, sqlite3_vtab*);
@@ -19117,6 +19536,9 @@ SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context*);
SQLITE_PRIVATE int sqlite3VdbeParameterIndex(Vdbe*, const char*, int);
SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *, sqlite3_stmt *);
SQLITE_PRIVATE void sqlite3ParserReset(Parse*);
+#ifdef SQLITE_ENABLE_NORMALIZE
+SQLITE_PRIVATE char *sqlite3Normalize(Vdbe*, const char*);
+#endif
SQLITE_PRIVATE int sqlite3Reprepare(Vdbe*);
SQLITE_PRIVATE void sqlite3ExprListCheckLength(Parse*, ExprList*, const char*);
SQLITE_PRIVATE CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);
@@ -19211,7 +19633,7 @@ SQLITE_PRIVATE void sqlite3EndBenignMalloc(void);
#define IN_INDEX_NOOP_OK 0x0001 /* OK to return IN_INDEX_NOOP */
#define IN_INDEX_MEMBERSHIP 0x0002 /* IN operator used for membership test */
#define IN_INDEX_LOOP 0x0004 /* IN operator used as a loop */
-SQLITE_PRIVATE int sqlite3FindInIndex(Parse *, Expr *, u32, int*, int*);
+SQLITE_PRIVATE int sqlite3FindInIndex(Parse *, Expr *, u32, int*, int*, int*);
SQLITE_PRIVATE int sqlite3JournalOpen(sqlite3_vfs *, const char *, sqlite3_file *, int, int);
SQLITE_PRIVATE int sqlite3JournalSize(sqlite3_vfs *);
@@ -19491,8 +19913,15 @@ SQLITE_PRIVATE const unsigned char sqlite3CtypeMap[256] = {
** SQLITE_ALLOW_COVERING_INDEX_SCAN compile-time option, or is "on" if
** that compile-time option is omitted.
*/
-#ifndef SQLITE_ALLOW_COVERING_INDEX_SCAN
+#if !defined(SQLITE_ALLOW_COVERING_INDEX_SCAN)
# define SQLITE_ALLOW_COVERING_INDEX_SCAN 1
+#else
+# if !SQLITE_ALLOW_COVERING_INDEX_SCAN
+# error "Compile-time disabling of covering index scan using the\
+ -DSQLITE_ALLOW_COVERING_INDEX_SCAN=0 option is deprecated.\
+ Contact SQLite developers if this is a problem for you, and\
+ delete this #error macro to continue with your build."
+# endif
#endif
/* The minimum PMA size is set to this value multiplied by the database
@@ -19527,6 +19956,13 @@ SQLITE_PRIVATE const unsigned char sqlite3CtypeMap[256] = {
#endif
+/* The default maximum size of an in-memory database created using
+** sqlite3_deserialize()
+*/
+#ifndef SQLITE_MEMDB_DEFAULT_MAXSIZE
+# define SQLITE_MEMDB_DEFAULT_MAXSIZE 1073741824
+#endif
+
/*
** The following singleton contains the global configuration for
** the SQLite library.
@@ -19538,6 +19974,7 @@ SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = {
SQLITE_USE_URI, /* bOpenUri */
SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */
0, /* bSmallMalloc */
+ 1, /* bExtraSchemaChecks */
0x7ffffffe, /* mxStrlen */
0, /* neverCorrupt */
SQLITE_DEFAULT_LOOKASIDE, /* szLookaside, nLookaside */
@@ -19574,12 +20011,17 @@ SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = {
0, /* xVdbeBranch */
0, /* pVbeBranchArg */
#endif
+#ifdef SQLITE_ENABLE_DESERIALIZE
+ SQLITE_MEMDB_DEFAULT_MAXSIZE, /* mxMemdbSize */
+#endif
#ifndef SQLITE_UNTESTABLE
0, /* xTestCallback */
#endif
0, /* bLocaltimeFault */
+ 0, /* bInternalFunctions */
0x7ffffffe, /* iOnceResetThreshold */
- SQLITE_DEFAULT_SORTERREF_SIZE /* szSorterRef */
+ SQLITE_DEFAULT_SORTERREF_SIZE, /* szSorterRef */
+ 0, /* iPrngSeed */
};
/*
@@ -19589,14 +20031,6 @@ SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = {
*/
SQLITE_PRIVATE FuncDefHash sqlite3BuiltinFunctions;
-/*
-** Constant tokens for values 0 and 1.
-*/
-SQLITE_PRIVATE const Token sqlite3IntTokens[] = {
- { "0", 1 },
- { "1", 1 }
-};
-
#ifdef VDBE_PROFILE
/*
** The following performance counter can be used in place of
@@ -19908,12 +20342,12 @@ struct sqlite3_value {
#define MEM_Int 0x0004 /* Value is an integer */
#define MEM_Real 0x0008 /* Value is a real number */
#define MEM_Blob 0x0010 /* Value is a BLOB */
-#define MEM_AffMask 0x001f /* Mask of affinity bits */
-/* Available 0x0020 */
-/* Available 0x0040 */
+#define MEM_IntReal 0x0020 /* MEM_Int that stringifies like MEM_Real */
+#define MEM_AffMask 0x003f /* Mask of affinity bits */
+#define MEM_FromBind 0x0040 /* Value originates from sqlite3_bind() */
#define MEM_Undefined 0x0080 /* Value is undefined */
#define MEM_Cleared 0x0100 /* NULL set by OP_Null, not from data */
-#define MEM_TypeMask 0xc1ff /* Mask of type bits */
+#define MEM_TypeMask 0xc1bf /* Mask of type bits */
/* Whenever Mem contains a valid string or blob representation, one of
@@ -19945,6 +20379,12 @@ struct sqlite3_value {
#define MemSetTypeFlag(p, f) \
((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f)
+/*
+** True if Mem X is a NULL-nochng type.
+*/
+#define MemNullNochng(X) \
+ ((X)->flags==(MEM_Null|MEM_Zero) && (X)->n==0 && (X)->u.nZero==0)
+
/*
** Return true if a memory cell is not marked as invalid. This macro
** is for use inside assert() statements only.
@@ -19998,6 +20438,9 @@ struct sqlite3_context {
*/
typedef unsigned bft; /* Bit Field Type */
+/* The ScanStatus object holds a single value for the
+** sqlite3_stmt_scanstatus() interface.
+*/
typedef struct ScanStatus ScanStatus;
struct ScanStatus {
int addrExplain; /* OP_Explain for loop */
@@ -20008,6 +20451,19 @@ struct ScanStatus {
char *zName; /* Name of table or index */
};
+/* The DblquoteStr object holds the text of a double-quoted
+** string for a prepared statement. A linked list of these objects
+** is constructed during statement parsing and is held on Vdbe.pDblStr.
+** When computing a normalized SQL statement for an SQL statement, that
+** list is consulted for each double-quoted identifier to see if the
+** identifier should really be a string literal.
+*/
+typedef struct DblquoteStr DblquoteStr;
+struct DblquoteStr {
+ DblquoteStr *pNextStr; /* Next string literal in the list */
+ char z[8]; /* Dequoted value for the string */
+};
+
/*
** An instance of the virtual machine. This structure contains the complete
** state of the virtual machine.
@@ -20027,28 +20483,29 @@ struct Vdbe {
int pc; /* The program counter */
int rc; /* Value to return */
int nChange; /* Number of db changes made since last reset */
- int iStatement; /* Statement number (or 0 if has not opened stmt) */
+ int iStatement; /* Statement number (or 0 if has no opened stmt) */
i64 iCurrentTime; /* Value of julianday('now') for this statement */
i64 nFkConstraint; /* Number of imm. FK constraints this VM */
i64 nStmtDefCons; /* Number of def. constraints when stmt started */
i64 nStmtDefImmCons; /* Number of def. imm constraints when stmt started */
+ Mem *aMem; /* The memory locations */
+ Mem **apArg; /* Arguments to currently executing user function */
+ VdbeCursor **apCsr; /* One element of this array for each open cursor */
+ Mem *aVar; /* Values for the OP_Variable opcode. */
/* When allocating a new Vdbe object, all of the fields below should be
** initialized to zero or NULL */
Op *aOp; /* Space to hold the virtual machine's program */
- Mem *aMem; /* The memory locations */
- Mem **apArg; /* Arguments to currently executing user function */
+ int nOp; /* Number of instructions in the program */
+ int nOpAlloc; /* Slots allocated for aOp[] */
Mem *aColName; /* Column names to return */
Mem *pResultSet; /* Pointer to an array of results */
char *zErrMsg; /* Error message written here */
- VdbeCursor **apCsr; /* One element of this array for each open cursor */
- Mem *aVar; /* Values for the OP_Variable opcode. */
VList *pVList; /* Name of variables */
#ifndef SQLITE_OMIT_TRACE
i64 startTime; /* Time when query started - used for profiling */
#endif
- int nOp; /* Number of instructions in the program */
#ifdef SQLITE_DEBUG
int rcApp; /* errcode set by sqlite3_result_error_code() */
u32 nWrite; /* Number of write operations that have occurred */
@@ -20069,6 +20526,10 @@ struct Vdbe {
yDbMask lockMask; /* Subset of btreeMask that requires a lock */
u32 aCounter[7]; /* Counters used by sqlite3_stmt_status() */
char *zSql; /* Text of the SQL statement that generated this */
+#ifdef SQLITE_ENABLE_NORMALIZE
+ char *zNormSql; /* Normalization of the associated SQL statement */
+ DblquoteStr *pDblStr; /* List of double-quoted string literals */
+#endif
void *pFree; /* Free this when deleting the vdbe */
VdbeFrame *pFrame; /* Parent frame */
VdbeFrame *pDelFrame; /* List of frame objects to free on VM reset */
@@ -20122,7 +20583,6 @@ SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor**, int*);
SQLITE_PRIVATE int sqlite3VdbeCursorRestore(VdbeCursor*);
SQLITE_PRIVATE u32 sqlite3VdbeSerialTypeLen(u32);
SQLITE_PRIVATE u8 sqlite3VdbeOneByteSerialTypeLen(u8);
-SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem*, int, u32*);
SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(sqlite3*, AuxData**, int, int);
@@ -20131,7 +20591,9 @@ int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(sqlite3*,VdbeCursor*,UnpackedRecord*,int*);
SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3*, BtCursor*, i64*);
SQLITE_PRIVATE int sqlite3VdbeExec(Vdbe*);
+#ifndef SQLITE_OMIT_EXPLAIN
SQLITE_PRIVATE int sqlite3VdbeList(Vdbe*);
+#endif
SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *, int);
SQLITE_PRIVATE int sqlite3VdbeMemTooBig(Mem*);
@@ -20170,7 +20632,9 @@ SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem*, FuncDef*);
#ifndef SQLITE_OMIT_WINDOWFUNC
SQLITE_PRIVATE int sqlite3VdbeMemAggValue(Mem*, Mem*, FuncDef*);
#endif
+#ifndef SQLITE_OMIT_EXPLAIN
SQLITE_PRIVATE const char *sqlite3OpcodeName(int);
+#endif
SQLITE_PRIVATE int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve);
SQLITE_PRIVATE int sqlite3VdbeMemClearAndResize(Mem *pMem, int n);
SQLITE_PRIVATE int sqlite3VdbeCloseStatement(Vdbe *, int);
@@ -21002,7 +21466,7 @@ static int parseDateOrTime(
return 0;
}else if( sqlite3StrICmp(zDate,"now")==0 && sqlite3NotPureFunc(context) ){
return setDateTimeToCurrent(context, p);
- }else if( sqlite3AtoF(zDate, &r, sqlite3Strlen30(zDate), SQLITE_UTF8) ){
+ }else if( sqlite3AtoF(zDate, &r, sqlite3Strlen30(zDate), SQLITE_UTF8)>0 ){
setRawDateNumber(p, r);
return 0;
}
@@ -21336,7 +21800,7 @@ static int parseModifier(
** date is already on the appropriate weekday, this is a no-op.
*/
if( sqlite3_strnicmp(z, "weekday ", 8)==0
- && sqlite3AtoF(&z[8], &r, sqlite3Strlen30(&z[8]), SQLITE_UTF8)
+ && sqlite3AtoF(&z[8], &r, sqlite3Strlen30(&z[8]), SQLITE_UTF8)>0
&& (n=(int)r)==r && n>=0 && r<7 ){
sqlite3_int64 Z;
computeYMD_HMS(p);
@@ -21395,7 +21859,7 @@ static int parseModifier(
double rRounder;
int i;
for(n=1; z[n] && z[n]!=':' && !sqlite3Isspace(z[n]); n++){}
- if( !sqlite3AtoF(z, &r, n, SQLITE_UTF8) ){
+ if( sqlite3AtoF(z, &r, n, SQLITE_UTF8)<=0 ){
rc = 1;
break;
}
@@ -22124,7 +22588,15 @@ SQLITE_PRIVATE void sqlite3OsDlClose(sqlite3_vfs *pVfs, void *pHandle){
}
#endif /* SQLITE_OMIT_LOAD_EXTENSION */
SQLITE_PRIVATE int sqlite3OsRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
- return pVfs->xRandomness(pVfs, nByte, zBufOut);
+ if( sqlite3Config.iPrngSeed ){
+ memset(zBufOut, 0, nByte);
+ if( ALWAYS(nByte>(signed)sizeof(unsigned)) ) nByte = sizeof(unsigned int);
+ memcpy(zBufOut, &sqlite3Config.iPrngSeed, nByte);
+ return SQLITE_OK;
+ }else{
+ return pVfs->xRandomness(pVfs, nByte, zBufOut);
+ }
+
}
SQLITE_PRIVATE int sqlite3OsSleep(sqlite3_vfs *pVfs, int nMicro){
return pVfs->xSleep(pVfs, nMicro);
@@ -26869,6 +27341,9 @@ SQLITE_PRIVATE void sqlite3OomFault(sqlite3 *db){
db->u1.isInterrupted = 1;
}
db->lookaside.bDisable++;
+ if( db->pParse ){
+ db->pParse->rc = SQLITE_NOMEM_BKPT;
+ }
}
}
@@ -27025,6 +27500,12 @@ static const et_info fmtinfo[] = {
{ 'r', 10, 1, etORDINAL, 0, 0 },
};
+/* Floating point constants used for rounding */
+static const double arRound[] = {
+ 5.0e-01, 5.0e-02, 5.0e-03, 5.0e-04, 5.0e-05,
+ 5.0e-06, 5.0e-07, 5.0e-08, 5.0e-09, 5.0e-10,
+};
+
/*
** If SQLITE_OMIT_FLOATING_POINT is defined, then none of the floating point
** conversions will work.
@@ -27062,7 +27543,8 @@ static char et_getdigit(LONGDOUBLE_TYPE *val, int *cnt){
static void setStrAccumError(StrAccum *p, u8 eError){
assert( eError==SQLITE_NOMEM || eError==SQLITE_TOOBIG );
p->accError = eError;
- p->nAlloc = 0;
+ if( p->mxAlloc ) sqlite3_str_reset(p);
+ if( eError==SQLITE_TOOBIG ) sqlite3ErrorToParser(p->db, eError);
}
/*
@@ -27081,6 +27563,28 @@ static char *getTextArg(PrintfArguments *p){
return (char*)sqlite3_value_text(p->apArg[p->nUsed++]);
}
+/*
+** Allocate memory for a temporary buffer needed for printf rendering.
+**
+** If the requested size of the temp buffer is larger than the size
+** of the output buffer in pAccum, then cause an SQLITE_TOOBIG error.
+** Do the size check before the memory allocation to prevent rogue
+** SQL from requesting large allocations using the precision or width
+** field of the printf() function.
+*/
+static char *printfTempBuf(sqlite3_str *pAccum, sqlite3_int64 n){
+ char *z;
+ if( pAccum->accError ) return 0;
+ if( n>pAccum->nAlloc && n>pAccum->mxAlloc ){
+ setStrAccumError(pAccum, SQLITE_TOOBIG);
+ return 0;
+ }
+ z = sqlite3DbMallocRaw(pAccum->db, n);
+ if( z==0 ){
+ setStrAccumError(pAccum, SQLITE_NOMEM);
+ }
+ return z;
+}
/*
** On machines with a small stack size, you can redefine the
@@ -27163,6 +27667,9 @@ SQLITE_API void sqlite3_str_vappendf(
flag_leftjustify = flag_prefix = cThousand =
flag_alternateform = flag_altform2 = flag_zeropad = 0;
done = 0;
+ width = 0;
+ flag_long = 0;
+ precision = -1;
do{
switch( c ){
case '-': flag_leftjustify = 1; break;
@@ -27173,80 +27680,93 @@ SQLITE_API void sqlite3_str_vappendf(
case '0': flag_zeropad = 1; break;
case ',': cThousand = ','; break;
default: done = 1; break;
+ case 'l': {
+ flag_long = 1;
+ c = *++fmt;
+ if( c=='l' ){
+ c = *++fmt;
+ flag_long = 2;
+ }
+ done = 1;
+ break;
+ }
+ case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9': {
+ unsigned wx = c - '0';
+ while( (c = *++fmt)>='0' && c<='9' ){
+ wx = wx*10 + c - '0';
+ }
+ testcase( wx>0x7fffffff );
+ width = wx & 0x7fffffff;
+#ifdef SQLITE_PRINTF_PRECISION_LIMIT
+ if( width>SQLITE_PRINTF_PRECISION_LIMIT ){
+ width = SQLITE_PRINTF_PRECISION_LIMIT;
+ }
+#endif
+ if( c!='.' && c!='l' ){
+ done = 1;
+ }else{
+ fmt--;
+ }
+ break;
+ }
+ case '*': {
+ if( bArgList ){
+ width = (int)getIntArg(pArgList);
+ }else{
+ width = va_arg(ap,int);
+ }
+ if( width<0 ){
+ flag_leftjustify = 1;
+ width = width >= -2147483647 ? -width : 0;
+ }
+#ifdef SQLITE_PRINTF_PRECISION_LIMIT
+ if( width>SQLITE_PRINTF_PRECISION_LIMIT ){
+ width = SQLITE_PRINTF_PRECISION_LIMIT;
+ }
+#endif
+ if( (c = fmt[1])!='.' && c!='l' ){
+ c = *++fmt;
+ done = 1;
+ }
+ break;
+ }
+ case '.': {
+ c = *++fmt;
+ if( c=='*' ){
+ if( bArgList ){
+ precision = (int)getIntArg(pArgList);
+ }else{
+ precision = va_arg(ap,int);
+ }
+ if( precision<0 ){
+ precision = precision >= -2147483647 ? -precision : -1;
+ }
+ c = *++fmt;
+ }else{
+ unsigned px = 0;
+ while( c>='0' && c<='9' ){
+ px = px*10 + c - '0';
+ c = *++fmt;
+ }
+ testcase( px>0x7fffffff );
+ precision = px & 0x7fffffff;
+ }
+#ifdef SQLITE_PRINTF_PRECISION_LIMIT
+ if( precision>SQLITE_PRINTF_PRECISION_LIMIT ){
+ precision = SQLITE_PRINTF_PRECISION_LIMIT;
+ }
+#endif
+ if( c=='l' ){
+ --fmt;
+ }else{
+ done = 1;
+ }
+ break;
+ }
}
}while( !done && (c=(*++fmt))!=0 );
- /* Get the field width */
- if( c=='*' ){
- if( bArgList ){
- width = (int)getIntArg(pArgList);
- }else{
- width = va_arg(ap,int);
- }
- if( width<0 ){
- flag_leftjustify = 1;
- width = width >= -2147483647 ? -width : 0;
- }
- c = *++fmt;
- }else{
- unsigned wx = 0;
- while( c>='0' && c<='9' ){
- wx = wx*10 + c - '0';
- c = *++fmt;
- }
- testcase( wx>0x7fffffff );
- width = wx & 0x7fffffff;
- }
- assert( width>=0 );
-#ifdef SQLITE_PRINTF_PRECISION_LIMIT
- if( width>SQLITE_PRINTF_PRECISION_LIMIT ){
- width = SQLITE_PRINTF_PRECISION_LIMIT;
- }
-#endif
- /* Get the precision */
- if( c=='.' ){
- c = *++fmt;
- if( c=='*' ){
- if( bArgList ){
- precision = (int)getIntArg(pArgList);
- }else{
- precision = va_arg(ap,int);
- }
- c = *++fmt;
- if( precision<0 ){
- precision = precision >= -2147483647 ? -precision : -1;
- }
- }else{
- unsigned px = 0;
- while( c>='0' && c<='9' ){
- px = px*10 + c - '0';
- c = *++fmt;
- }
- testcase( px>0x7fffffff );
- precision = px & 0x7fffffff;
- }
- }else{
- precision = -1;
- }
- assert( precision>=(-1) );
-#ifdef SQLITE_PRINTF_PRECISION_LIMIT
- if( precision>SQLITE_PRINTF_PRECISION_LIMIT ){
- precision = SQLITE_PRINTF_PRECISION_LIMIT;
- }
-#endif
-
-
- /* Get the conversion type modifier */
- if( c=='l' ){
- flag_long = 1;
- c = *++fmt;
- if( c=='l' ){
- flag_long = 2;
- c = *++fmt;
- }
- }else{
- flag_long = 0;
- }
/* Fetch the info entry for the field */
infop = &fmtinfo[0];
xtype = etINVALID;
@@ -27331,12 +27851,11 @@ SQLITE_API void sqlite3_str_vappendf(
nOut = etBUFSIZE;
zOut = buf;
}else{
- u64 n = (u64)precision + 10 + precision/3;
- zOut = zExtra = sqlite3Malloc( n );
- if( zOut==0 ){
- setStrAccumError(pAccum, SQLITE_NOMEM);
- return;
- }
+ u64 n;
+ n = (u64)precision + 10;
+ if( cThousand ) n += precision/3;
+ zOut = zExtra = printfTempBuf(pAccum, n);
+ if( zOut==0 ) return;
nOut = (int)n;
}
bufpt = &zOut[nOut-1];
@@ -27405,8 +27924,18 @@ SQLITE_API void sqlite3_str_vappendf(
}
if( xtype==etGENERIC && precision>0 ) precision--;
testcase( precision>0xfff );
- for(idx=precision&0xfff, rounder=0.5; idx>0; idx--, rounder*=0.1){}
- if( xtype==etFLOAT ) realvalue += rounder;
+ idx = precision & 0xfff;
+ rounder = arRound[idx%10];
+ while( idx>=10 ){ rounder *= 1.0e-10; idx -= 10; }
+ if( xtype==etFLOAT ){
+ double rx = (double)realvalue;
+ sqlite3_uint64 u;
+ int ex;
+ memcpy(&u, &rx, sizeof(u));
+ ex = -1023 + (int)((u>>52)&0x7ff);
+ if( precision+(ex/3) < 15 ) rounder += realvalue*3e-16;
+ realvalue += rounder;
+ }
/* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
exp = 0;
if( sqlite3IsNaN((double)realvalue) ){
@@ -27455,12 +27984,12 @@ SQLITE_API void sqlite3_str_vappendf(
}else{
e2 = exp;
}
- if( MAX(e2,0)+(i64)precision+(i64)width > etBUFSIZE - 15 ){
- bufpt = zExtra
- = sqlite3Malloc( MAX(e2,0)+(i64)precision+(i64)width+15 );
- if( bufpt==0 ){
- setStrAccumError(pAccum, SQLITE_NOMEM);
- return;
+ {
+ i64 szBufNeeded; /* Size of a temporary buffer needed */
+ szBufNeeded = MAX(e2,0)+(i64)precision+(i64)width+15;
+ if( szBufNeeded > etBUFSIZE ){
+ bufpt = zExtra = printfTempBuf(pAccum, szBufNeeded);
+ if( bufpt==0 ) return;
}
}
zOut = bufpt;
@@ -27684,11 +28213,8 @@ SQLITE_API void sqlite3_str_vappendf(
needQuote = !isnull && xtype==etSQLESCAPE2;
n += i + 3;
if( n>etBUFSIZE ){
- bufpt = zExtra = sqlite3Malloc( n );
- if( bufpt==0 ){
- setStrAccumError(pAccum, SQLITE_NOMEM);
- return;
- }
+ bufpt = zExtra = printfTempBuf(pAccum, n);
+ if( bufpt==0 ) return;
}else{
bufpt = buf;
}
@@ -27778,9 +28304,8 @@ static int sqlite3StrAccumEnlarge(StrAccum *p, int N){
return 0;
}
if( p->mxAlloc==0 ){
- N = p->nAlloc - p->nChar - 1;
setStrAccumError(p, SQLITE_TOOBIG);
- return N;
+ return p->nAlloc - p->nChar - 1;
}else{
char *zOld = isMalloced(p) ? p->zText : 0;
i64 szNew = p->nChar;
@@ -27852,7 +28377,7 @@ SQLITE_API void sqlite3_str_append(sqlite3_str *p, const char *z, int N){
assert( z!=0 || N==0 );
assert( p->zText!=0 || p->nChar==0 || p->accError );
assert( N>=0 );
- assert( p->accError==0 || p->nAlloc==0 );
+ assert( p->accError==0 || p->nAlloc==0 || p->mxAlloc==0 );
if( p->nChar+N >= p->nAlloc ){
enlargeAndAppend(p,z,N);
}else if( N ){
@@ -28297,6 +28822,43 @@ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 m
}
}
+/*
+** Generate a human-readable description of a SrcList object.
+*/
+SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView *pView, const SrcList *pSrc){
+ int i;
+ for(i=0; inSrc; i++){
+ const struct SrcList_item *pItem = &pSrc->a[i];
+ StrAccum x;
+ char zLine[100];
+ sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
+ sqlite3_str_appendf(&x, "{%d,*}", pItem->iCursor);
+ if( pItem->zDatabase ){
+ sqlite3_str_appendf(&x, " %s.%s", pItem->zDatabase, pItem->zName);
+ }else if( pItem->zName ){
+ sqlite3_str_appendf(&x, " %s", pItem->zName);
+ }
+ if( pItem->pTab ){
+ sqlite3_str_appendf(&x, " tab=%Q nCol=%d ptr=%p",
+ pItem->pTab->zName, pItem->pTab->nCol, pItem->pTab);
+ }
+ if( pItem->zAlias ){
+ sqlite3_str_appendf(&x, " (AS %s)", pItem->zAlias);
+ }
+ if( pItem->fg.jointype & JT_LEFT ){
+ sqlite3_str_appendf(&x, " LEFT-JOIN");
+ }
+ sqlite3StrAccumFinish(&x);
+ sqlite3TreeViewItem(pView, zLine, inSrc-1);
+ if( pItem->pSelect ){
+ sqlite3TreeViewSelect(pView, pItem->pSelect, 0);
+ }
+ if( pItem->fg.isTabFunc ){
+ sqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:");
+ }
+ sqlite3TreeViewPop(pView);
+ }
+}
/*
** Generate a human-readable description of a Select object.
@@ -28315,13 +28877,17 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m
sqlite3TreeViewPush(pView, 1);
}
do{
- sqlite3TreeViewLine(pView,
- "SELECT%s%s (%u/%p) selFlags=0x%x nSelectRow=%d",
- ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
- ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""),
- p->selId, p, p->selFlags,
- (int)p->nSelectRow
- );
+ if( p->selFlags & SF_WhereBegin ){
+ sqlite3TreeViewLine(pView, "sqlite3WhereBegin()");
+ }else{
+ sqlite3TreeViewLine(pView,
+ "SELECT%s%s (%u/%p) selFlags=0x%x nSelectRow=%d",
+ ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
+ ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""),
+ p->selId, p, p->selFlags,
+ (int)p->nSelectRow
+ );
+ }
if( cnt++ ) sqlite3TreeViewPop(pView);
if( p->pPrior ){
n = 1000;
@@ -28338,7 +28904,10 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m
if( p->pWinDefn ) n++;
#endif
}
- sqlite3TreeViewExprList(pView, p->pEList, (n--)>0, "result-set");
+ if( p->pEList ){
+ sqlite3TreeViewExprList(pView, p->pEList, n>0, "result-set");
+ }
+ n--;
#ifndef SQLITE_OMIT_WINDOWFUNC
if( p->pWin ){
Window *pX;
@@ -28351,39 +28920,9 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m
}
#endif
if( p->pSrc && p->pSrc->nSrc ){
- int i;
pView = sqlite3TreeViewPush(pView, (n--)>0);
sqlite3TreeViewLine(pView, "FROM");
- for(i=0; ipSrc->nSrc; i++){
- struct SrcList_item *pItem = &p->pSrc->a[i];
- StrAccum x;
- char zLine[100];
- sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
- sqlite3_str_appendf(&x, "{%d,*}", pItem->iCursor);
- if( pItem->zDatabase ){
- sqlite3_str_appendf(&x, " %s.%s", pItem->zDatabase, pItem->zName);
- }else if( pItem->zName ){
- sqlite3_str_appendf(&x, " %s", pItem->zName);
- }
- if( pItem->pTab ){
- sqlite3_str_appendf(&x, " tabname=%Q", pItem->pTab->zName);
- }
- if( pItem->zAlias ){
- sqlite3_str_appendf(&x, " (AS %s)", pItem->zAlias);
- }
- if( pItem->fg.jointype & JT_LEFT ){
- sqlite3_str_appendf(&x, " LEFT-JOIN");
- }
- sqlite3StrAccumFinish(&x);
- sqlite3TreeViewItem(pView, zLine, ipSrc->nSrc-1);
- if( pItem->pSelect ){
- sqlite3TreeViewSelect(pView, pItem->pSelect, 0);
- }
- if( pItem->fg.isTabFunc ){
- sqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:");
- }
- sqlite3TreeViewPop(pView);
- }
+ sqlite3TreeViewSrcList(pView, p->pSrc);
sqlite3TreeViewPop(pView);
}
if( p->pWhere ){
@@ -28478,24 +29017,62 @@ SQLITE_PRIVATE void sqlite3TreeViewBound(
** Generate a human-readable explanation for a Window object
*/
SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u8 more){
+ int nElement = 0;
+ if( pWin->pFilter ){
+ sqlite3TreeViewItem(pView, "FILTER", 1);
+ sqlite3TreeViewExpr(pView, pWin->pFilter, 0);
+ sqlite3TreeViewPop(pView);
+ }
pView = sqlite3TreeViewPush(pView, more);
if( pWin->zName ){
- sqlite3TreeViewLine(pView, "OVER %s", pWin->zName);
+ sqlite3TreeViewLine(pView, "OVER %s (%p)", pWin->zName, pWin);
}else{
- sqlite3TreeViewLine(pView, "OVER");
+ sqlite3TreeViewLine(pView, "OVER (%p)", pWin);
+ }
+ if( pWin->zBase ) nElement++;
+ if( pWin->pOrderBy ) nElement++;
+ if( pWin->eFrmType ) nElement++;
+ if( pWin->eExclude ) nElement++;
+ if( pWin->zBase ){
+ sqlite3TreeViewPush(pView, (--nElement)>0);
+ sqlite3TreeViewLine(pView, "window: %s", pWin->zBase);
+ sqlite3TreeViewPop(pView);
}
if( pWin->pPartition ){
- sqlite3TreeViewExprList(pView, pWin->pPartition, 1, "PARTITION-BY");
+ sqlite3TreeViewExprList(pView, pWin->pPartition, nElement>0,"PARTITION-BY");
}
if( pWin->pOrderBy ){
- sqlite3TreeViewExprList(pView, pWin->pOrderBy, 1, "ORDER-BY");
+ sqlite3TreeViewExprList(pView, pWin->pOrderBy, (--nElement)>0, "ORDER-BY");
}
- if( pWin->eType ){
- sqlite3TreeViewItem(pView, pWin->eType==TK_RANGE ? "RANGE" : "ROWS", 0);
+ if( pWin->eFrmType ){
+ char zBuf[30];
+ const char *zFrmType = "ROWS";
+ if( pWin->eFrmType==TK_RANGE ) zFrmType = "RANGE";
+ if( pWin->eFrmType==TK_GROUPS ) zFrmType = "GROUPS";
+ sqlite3_snprintf(sizeof(zBuf),zBuf,"%s%s",zFrmType,
+ pWin->bImplicitFrame ? " (implied)" : "");
+ sqlite3TreeViewItem(pView, zBuf, (--nElement)>0);
sqlite3TreeViewBound(pView, pWin->eStart, pWin->pStart, 1);
sqlite3TreeViewBound(pView, pWin->eEnd, pWin->pEnd, 0);
sqlite3TreeViewPop(pView);
}
+ if( pWin->eExclude ){
+ char zBuf[30];
+ const char *zExclude;
+ switch( pWin->eExclude ){
+ case TK_NO: zExclude = "NO OTHERS"; break;
+ case TK_CURRENT: zExclude = "CURRENT ROW"; break;
+ case TK_GROUP: zExclude = "GROUP"; break;
+ case TK_TIES: zExclude = "TIES"; break;
+ default:
+ sqlite3_snprintf(sizeof(zBuf),zBuf,"invalid(%d)", pWin->eExclude);
+ zExclude = zBuf;
+ break;
+ }
+ sqlite3TreeViewPush(pView, 0);
+ sqlite3TreeViewLine(pView, "EXCLUDE %s", zExclude);
+ sqlite3TreeViewPop(pView);
+ }
sqlite3TreeViewPop(pView);
}
#endif /* SQLITE_OMIT_WINDOWFUNC */
@@ -28526,12 +29103,14 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
sqlite3TreeViewPop(pView);
return;
}
- if( pExpr->flags ){
+ if( pExpr->flags || pExpr->affExpr ){
if( ExprHasProperty(pExpr, EP_FromJoin) ){
- sqlite3_snprintf(sizeof(zFlgs),zFlgs," flags=0x%x iRJT=%d",
- pExpr->flags, pExpr->iRightJoinTable);
+ sqlite3_snprintf(sizeof(zFlgs),zFlgs," fg.af=%x.%c iRJT=%d",
+ pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n',
+ pExpr->iRightJoinTable);
}else{
- sqlite3_snprintf(sizeof(zFlgs),zFlgs," flags=0x%x",pExpr->flags);
+ sqlite3_snprintf(sizeof(zFlgs),zFlgs," fg.af=%x.%c",
+ pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n');
}
}else{
zFlgs[0] = 0;
@@ -28645,7 +29224,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
};
assert( pExpr->op2==TK_IS || pExpr->op2==TK_ISNOT );
assert( pExpr->pRight );
- assert( pExpr->pRight->op==TK_TRUEFALSE );
+ assert( sqlite3ExprSkipCollate(pExpr->pRight)->op==TK_TRUEFALSE );
x = (pExpr->op2==TK_ISNOT)*2 + sqlite3ExprTruthValue(pExpr->pRight);
zUniOp = azOp[x];
break;
@@ -28658,7 +29237,14 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
}
case TK_COLLATE: {
- sqlite3TreeViewLine(pView, "COLLATE %Q", pExpr->u.zToken);
+ /* COLLATE operators without the EP_Collate flag are intended to
+ ** emulate collation associated with a table column. These show
+ ** up in the treeview output as "SOFT-COLLATE". Explicit COLLATE
+ ** operators that appear in the original SQL always have the
+ ** EP_Collate bit set and appear in treeview output as just "COLLATE" */
+ sqlite3TreeViewLine(pView, "%sCOLLATE %Q%s",
+ !ExprHasProperty(pExpr, EP_Collate) ? "SOFT-" : "",
+ pExpr->u.zToken, zFlgs);
sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
break;
}
@@ -28673,16 +29259,16 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
}else{
pFarg = pExpr->x.pList;
#ifndef SQLITE_OMIT_WINDOWFUNC
- pWin = pExpr->pWin;
+ pWin = pExpr->y.pWin;
#else
pWin = 0;
#endif
}
if( pExpr->op==TK_AGG_FUNCTION ){
- sqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q",
- pExpr->op2, pExpr->u.zToken);
+ sqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q%s",
+ pExpr->op2, pExpr->u.zToken, zFlgs);
}else{
- sqlite3TreeViewLine(pView, "FUNCTION %Q", pExpr->u.zToken);
+ sqlite3TreeViewLine(pView, "FUNCTION %Q%s", pExpr->u.zToken, zFlgs);
}
if( pFarg ){
sqlite3TreeViewExprList(pView, pFarg, pWin!=0, 0);
@@ -28759,7 +29345,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
#ifndef SQLITE_OMIT_TRIGGER
case TK_RAISE: {
const char *zType = "unk";
- switch( pExpr->affinity ){
+ switch( pExpr->affExpr ){
case OE_Rollback: zType = "rollback"; break;
case OE_Abort: zType = "abort"; break;
case OE_Fail: zType = "fail"; break;
@@ -28800,7 +29386,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m
sqlite3TreeViewExpr(pView, pExpr->pRight, 0);
}else if( zUniOp ){
sqlite3TreeViewLine(pView, "%s%s", zUniOp, zFlgs);
- sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
+ sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
}
sqlite3TreeViewPop(pView);
}
@@ -29475,11 +30061,11 @@ SQLITE_PRIVATE u32 sqlite3Utf8Read(
** encoding, or if *pMem does not contain a string value.
*/
SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3VdbeMemTranslate(Mem *pMem, u8 desiredEnc){
- int len; /* Maximum length of output string in bytes */
- unsigned char *zOut; /* Output buffer */
- unsigned char *zIn; /* Input iterator */
- unsigned char *zTerm; /* End of input */
- unsigned char *z; /* Output iterator */
+ sqlite3_int64 len; /* Maximum length of output string in bytes */
+ unsigned char *zOut; /* Output buffer */
+ unsigned char *zIn; /* Input iterator */
+ unsigned char *zTerm; /* End of input */
+ unsigned char *z; /* Output iterator */
unsigned int c;
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
@@ -29528,14 +30114,14 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3VdbeMemTranslate(Mem *pMem, u8 desired
** nul-terminator.
*/
pMem->n &= ~1;
- len = pMem->n * 2 + 1;
+ len = 2 * (sqlite3_int64)pMem->n + 1;
}else{
/* When converting from UTF-8 to UTF-16 the maximum growth is caused
** when a 1-byte UTF-8 character is translated into a 2-byte UTF-16
** character. Two bytes are required in the output buffer for the
** nul-terminator.
*/
- len = pMem->n * 2 + 2;
+ len = 2 * (sqlite3_int64)pMem->n + 2;
}
/* Set zIn to point at the start of the input buffer and zTerm to point 1
@@ -29827,9 +30413,7 @@ SQLITE_PRIVATE void sqlite3UtfSelfTest(void){
*/
/* #include "sqliteInt.h" */
/* #include */
-#if HAVE_ISNAN || SQLITE_HAVE_ISNAN
-# include
-#endif
+#include
/*
** Routine needed to support the testcase() macro.
@@ -29842,15 +30426,23 @@ SQLITE_PRIVATE void sqlite3Coverage(int x){
#endif
/*
-** Give a callback to the test harness that can be used to simulate faults
-** in places where it is difficult or expensive to do so purely by means
-** of inputs.
+** Calls to sqlite3FaultSim() are used to simulate a failure during testing,
+** or to bypass normal error detection during testing in order to let
+** execute proceed futher downstream.
**
-** The intent of the integer argument is to let the fault simulator know
-** which of multiple sqlite3FaultSim() calls has been hit.
+** In deployment, sqlite3FaultSim() *always* return SQLITE_OK (0). The
+** sqlite3FaultSim() function only returns non-zero during testing.
**
-** Return whatever integer value the test callback returns, or return
-** SQLITE_OK if no test callback is installed.
+** During testing, if the test harness has set a fault-sim callback using
+** a call to sqlite3_test_control(SQLITE_TESTCTRL_FAULT_INSTALL), then
+** each call to sqlite3FaultSim() is relayed to that application-supplied
+** callback and the integer return value form the application-supplied
+** callback is returned by sqlite3FaultSim().
+**
+** The integer argument to sqlite3FaultSim() is a code to identify which
+** sqlite3FaultSim() instance is being invoked. Each call to sqlite3FaultSim()
+** should have a unique code. To prevent legacy testing applications from
+** breaking, the codes should not be changed or reused.
*/
#ifndef SQLITE_UNTESTABLE
SQLITE_PRIVATE int sqlite3FaultSim(int iTest){
@@ -29862,47 +30454,11 @@ SQLITE_PRIVATE int sqlite3FaultSim(int iTest){
#ifndef SQLITE_OMIT_FLOATING_POINT
/*
** Return true if the floating point value is Not a Number (NaN).
-**
-** Use the math library isnan() function if compiled with SQLITE_HAVE_ISNAN.
-** Otherwise, we have our own implementation that works on most systems.
*/
SQLITE_PRIVATE int sqlite3IsNaN(double x){
- int rc; /* The value return */
-#if !SQLITE_HAVE_ISNAN && !HAVE_ISNAN
- /*
- ** Systems that support the isnan() library function should probably
- ** make use of it by compiling with -DSQLITE_HAVE_ISNAN. But we have
- ** found that many systems do not have a working isnan() function so
- ** this implementation is provided as an alternative.
- **
- ** This NaN test sometimes fails if compiled on GCC with -ffast-math.
- ** On the other hand, the use of -ffast-math comes with the following
- ** warning:
- **
- ** This option [-ffast-math] should never be turned on by any
- ** -O option since it can result in incorrect output for programs
- ** which depend on an exact implementation of IEEE or ISO
- ** rules/specifications for math functions.
- **
- ** Under MSVC, this NaN test may fail if compiled with a floating-
- ** point precision mode other than /fp:precise. From the MSDN
- ** documentation:
- **
- ** The compiler [with /fp:precise] will properly handle comparisons
- ** involving NaN. For example, x != x evaluates to true if x is NaN
- ** ...
- */
-#ifdef __FAST_MATH__
-# error SQLite will not work correctly with the -ffast-math option of GCC.
-#endif
- volatile double y = x;
- volatile double z = y;
- rc = (y!=z);
-#else /* if HAVE_ISNAN */
- rc = isnan(x);
-#endif /* HAVE_ISNAN */
- testcase( rc );
- return rc;
+ u64 y;
+ memcpy(&y,&x,sizeof(y));
+ return IsNaN(y);
}
#endif /* SQLITE_OMIT_FLOATING_POINT */
@@ -30035,6 +30591,19 @@ SQLITE_PRIVATE void sqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){
}
}
+/*
+** If database connection db is currently parsing SQL, then transfer
+** error code errCode to that parser if the parser has not already
+** encountered some other kind of error.
+*/
+SQLITE_PRIVATE int sqlite3ErrorToParser(sqlite3 *db, int errCode){
+ Parse *pParse;
+ if( db==0 || (pParse = db->pParse)==0 ) return errCode;
+ pParse->rc = errCode;
+ pParse->nErr++;
+ return errCode;
+}
+
/*
** Convert an SQL-style quoted string into a normal string by removing
** the quote characters. The conversion is done in-place. If the
@@ -30048,7 +30617,7 @@ SQLITE_PRIVATE void sqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){
** dequoted string, exclusive of the zero terminator, if dequoting does
** occur.
**
-** 2002-Feb-14: This routine is extended to remove MS-Access style
+** 2002-02-14: This routine is extended to remove MS-Access style
** brackets from around identifiers. For example: "[a-b-c]" becomes
** "a-b-c".
*/
@@ -30074,6 +30643,11 @@ SQLITE_PRIVATE void sqlite3Dequote(char *z){
}
z[j] = 0;
}
+SQLITE_PRIVATE void sqlite3DequoteExpr(Expr *p){
+ assert( sqlite3Isquote(p->u.zToken[0]) );
+ p->flags |= p->u.zToken[0]=='"' ? EP_Quoted|EP_DblQuoted : EP_Quoted;
+ sqlite3Dequote(p->u.zToken);
+}
/*
** Generate a Token object from a string
@@ -30106,12 +30680,18 @@ SQLITE_API int sqlite3_stricmp(const char *zLeft, const char *zRight){
}
SQLITE_PRIVATE int sqlite3StrICmp(const char *zLeft, const char *zRight){
unsigned char *a, *b;
- int c;
+ int c, x;
a = (unsigned char *)zLeft;
b = (unsigned char *)zRight;
for(;;){
- c = (int)UpperToLower[*a] - (int)UpperToLower[*b];
- if( c || *a==0 ) break;
+ c = *a;
+ x = *b;
+ if( c==x ){
+ if( c==0 ) break;
+ }else{
+ c = (int)UpperToLower[c] - (int)UpperToLower[x];
+ if( c ) break;
+ }
a++;
b++;
}
@@ -30139,15 +30719,15 @@ SQLITE_API int sqlite3_strnicmp(const char *zLeft, const char *zRight, int N){
static LONGDOUBLE_TYPE sqlite3Pow10(int E){
#if defined(_MSC_VER)
static const LONGDOUBLE_TYPE x[] = {
- 1.0e+001,
- 1.0e+002,
- 1.0e+004,
- 1.0e+008,
- 1.0e+016,
- 1.0e+032,
- 1.0e+064,
- 1.0e+128,
- 1.0e+256
+ 1.0e+001L,
+ 1.0e+002L,
+ 1.0e+004L,
+ 1.0e+008L,
+ 1.0e+016L,
+ 1.0e+032L,
+ 1.0e+064L,
+ 1.0e+128L,
+ 1.0e+256L
};
LONGDOUBLE_TYPE r = 1.0;
int i;
@@ -30177,8 +30757,15 @@ static LONGDOUBLE_TYPE sqlite3Pow10(int E){
** uses the encoding enc. The string is not necessarily zero-terminated.
**
** Return TRUE if the result is a valid real number (or integer) and FALSE
-** if the string is empty or contains extraneous text. Valid numbers
-** are in one of these formats:
+** if the string is empty or contains extraneous text. More specifically
+** return
+** 1 => The input string is a pure integer
+** 2 or more => The input has a decimal point or eNNN clause
+** 0 or less => The input string is not a valid number
+** -1 => Not a valid number, but has a valid prefix which
+** includes a decimal point and/or an eNNN clause
+**
+** Valid numbers are in one of these formats:
**
** [+-]digits[E[+-]digits]
** [+-]digits.[digits][E[+-]digits]
@@ -30203,8 +30790,8 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en
int e = 0; /* exponent */
int eValid = 1; /* True exponent is either not used or is well-formed */
double result;
- int nDigits = 0;
- int nonNum = 0; /* True if input contains UTF16 with high byte non-zero */
+ int nDigit = 0; /* Number of digits processed */
+ int eType = 1; /* 1: pure integer, 2+: fractional -1 or less: bad UTF16 */
assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
*pResult = 0.0; /* Default return value, in case of an error */
@@ -30215,8 +30802,10 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en
int i;
incr = 2;
assert( SQLITE_UTF16LE==2 && SQLITE_UTF16BE==3 );
+ testcase( enc==SQLITE_UTF16LE );
+ testcase( enc==SQLITE_UTF16BE );
for(i=3-enc; i=((LARGEST_INT64-9)/10) ){
+ /* skip non-significant significand digits
+ ** (increase exponent by d to shift decimal left) */
+ while( z=zEnd ) goto do_atof_calc;
/* if decimal point is present */
if( *z=='.' ){
z+=incr;
+ eType++;
/* copy digits from after decimal to significand
** (decrease exponent by d to shift decimal right) */
while( z=zEnd ) goto do_atof_calc;
@@ -30263,6 +30855,7 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en
if( *z=='e' || *z=='E' ){
z+=incr;
eValid = 0;
+ eType++;
/* This branch is needed to avoid a (harmless) buffer overread. The
** special comment alerts the mutation tester that the correct answer
@@ -30361,7 +30954,13 @@ do_atof_calc:
*pResult = result;
/* return true if number and no extra non-whitespace chracters after */
- return z==zEnd && nDigits>0 && eValid && nonNum==0;
+ if( z==zEnd && nDigit>0 && eValid && eType>0 ){
+ return eType;
+ }else if( eType>=2 && (eType==3 || eValid) && nDigit>0 ){
+ return -1;
+ }else{
+ return 0;
+ }
#else
return !sqlite3Atoi64(z, pResult, length, enc);
#endif /* SQLITE_OMIT_FLOATING_POINT */
@@ -30404,6 +31003,7 @@ static int compare2pow63(const char *zNum, int incr){
**
** Returns:
**
+** -1 Not even a prefix of the input text looks like an integer
** 0 Successful transformation. Fits in a 64-bit signed integer.
** 1 Excess non-space text after the integer value
** 2 Integer too large for a 64-bit signed integer or is malformed
@@ -30463,9 +31063,9 @@ SQLITE_PRIVATE int sqlite3Atoi64(const char *zNum, i64 *pNum, int length, u8 enc
*pNum = (i64)u;
}
rc = 0;
- if( (i==0 && zStart==zNum) /* No digits */
- || nonNum /* UTF16 with high-order bytes non-zero */
- ){
+ if( i==0 && zStart==zNum ){ /* No digits */
+ rc = -1;
+ }else if( nonNum ){ /* UTF16 with high-order bytes non-zero */
rc = 1;
}else if( &zNum[i]=0 ){
+ *v = *p;
return 1;
}
-
- p++;
- b = *p;
- /* b: p1 (unmasked) */
- if (!(b&0x80))
- {
- a &= 0x7f;
- a = a<<7;
- a |= b;
- *v = a;
+ if( ((signed char*)p)[1]>=0 ){
+ *v = ((u32)(p[0]&0x7f)<<7) | p[1];
return 2;
}
@@ -30720,8 +31309,9 @@ SQLITE_PRIVATE u8 sqlite3GetVarint(const unsigned char *p, u64 *v){
assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
assert( SLOT_4_2_0 == ((0xfU<<28) | (0x7f<<14) | (0x7f)) );
- p++;
- a = a<<14;
+ a = ((u32)p[0])<<14;
+ b = p[1];
+ p += 2;
a |= *p;
/* a: p0<<14 | p2 (unmasked) */
if (!(a&0x80))
@@ -31304,7 +31894,7 @@ SQLITE_PRIVATE LogEst sqlite3LogEstFromDouble(double x){
#endif /* SQLITE_OMIT_VIRTUALTABLE */
#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
- defined(SQLITE_ENABLE_STAT3_OR_STAT4) || \
+ defined(SQLITE_ENABLE_STAT4) || \
defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
/*
** Convert a LogEst into an integer.
@@ -31322,7 +31912,7 @@ SQLITE_PRIVATE u64 sqlite3LogEstToInt(LogEst x){
defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
if( x>60 ) return (u64)LARGEST_INT64;
#else
- /* If only SQLITE_ENABLE_STAT3_OR_STAT4 is on, then the largest input
+ /* If only SQLITE_ENABLE_STAT4 is on, then the largest input
** possible to this routine is 310, resulting in a maximum x of 31 */
assert( x<=60 );
#endif
@@ -31381,7 +31971,7 @@ SQLITE_PRIVATE VList *sqlite3VListAdd(
assert( pIn==0 || pIn[0]>=3 ); /* Verify ok to add new elements */
if( pIn==0 || pIn[1]+nInt > pIn[0] ){
/* Enlarge the allocation */
- int nAlloc = (pIn ? pIn[0]*2 : 10) + nInt;
+ sqlite3_int64 nAlloc = (pIn ? 2*(sqlite3_int64)pIn[0] : 10) + nInt;
VList *pOut = sqlite3DbRealloc(db, pIn, nAlloc*sizeof(int));
if( pOut==0 ) return pIn;
if( pIn==0 ) pOut[1] = 2;
@@ -31587,7 +32177,7 @@ static HashElem *findElementWithHash(
unsigned int *pHash /* Write the hash value here */
){
HashElem *elem; /* Used to loop thru the element list */
- int count; /* Number of elements left to test */
+ unsigned int count; /* Number of elements left to test */
unsigned int h; /* The computed hash */
static HashElem nullElement = { 0, 0, 0, 0 };
@@ -31635,8 +32225,8 @@ static void removeElementGivenHash(
if( pEntry->chain==elem ){
pEntry->chain = elem->next;
}
+ assert( pEntry->count>0 );
pEntry->count--;
- assert( pEntry->count>=0 );
}
sqlite3_free( elem );
pH->count--;
@@ -31811,28 +32401,28 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){
/* 89 */ "Offset" OpHelp("r[P3] = sqlite_offset(P1)"),
/* 90 */ "Column" OpHelp("r[P3]=PX"),
/* 91 */ "Affinity" OpHelp("affinity(r[P1@P2])"),
- /* 92 */ "BitAnd" OpHelp("r[P3]=r[P1]&r[P2]"),
- /* 93 */ "BitOr" OpHelp("r[P3]=r[P1]|r[P2]"),
- /* 94 */ "ShiftLeft" OpHelp("r[P3]=r[P2]<>r[P1]"),
- /* 96 */ "Add" OpHelp("r[P3]=r[P1]+r[P2]"),
- /* 97 */ "Subtract" OpHelp("r[P3]=r[P2]-r[P1]"),
- /* 98 */ "Multiply" OpHelp("r[P3]=r[P1]*r[P2]"),
- /* 99 */ "Divide" OpHelp("r[P3]=r[P2]/r[P1]"),
- /* 100 */ "Remainder" OpHelp("r[P3]=r[P2]%r[P1]"),
- /* 101 */ "Concat" OpHelp("r[P3]=r[P2]+r[P1]"),
- /* 102 */ "MakeRecord" OpHelp("r[P3]=mkrec(r[P1@P2])"),
- /* 103 */ "BitNot" OpHelp("r[P2]= ~r[P1]"),
- /* 104 */ "Count" OpHelp("r[P2]=count()"),
- /* 105 */ "ReadCookie" OpHelp(""),
- /* 106 */ "String8" OpHelp("r[P2]='P4'"),
- /* 107 */ "SetCookie" OpHelp(""),
- /* 108 */ "ReopenIdx" OpHelp("root=P2 iDb=P3"),
- /* 109 */ "OpenRead" OpHelp("root=P2 iDb=P3"),
- /* 110 */ "OpenWrite" OpHelp("root=P2 iDb=P3"),
- /* 111 */ "OpenDup" OpHelp(""),
- /* 112 */ "OpenAutoindex" OpHelp("nColumn=P2"),
- /* 113 */ "OpenEphemeral" OpHelp("nColumn=P2"),
+ /* 92 */ "MakeRecord" OpHelp("r[P3]=mkrec(r[P1@P2])"),
+ /* 93 */ "Count" OpHelp("r[P2]=count()"),
+ /* 94 */ "ReadCookie" OpHelp(""),
+ /* 95 */ "SetCookie" OpHelp(""),
+ /* 96 */ "ReopenIdx" OpHelp("root=P2 iDb=P3"),
+ /* 97 */ "OpenRead" OpHelp("root=P2 iDb=P3"),
+ /* 98 */ "OpenWrite" OpHelp("root=P2 iDb=P3"),
+ /* 99 */ "BitAnd" OpHelp("r[P3]=r[P1]&r[P2]"),
+ /* 100 */ "BitOr" OpHelp("r[P3]=r[P1]|r[P2]"),
+ /* 101 */ "ShiftLeft" OpHelp("r[P3]=r[P2]<>r[P1]"),
+ /* 103 */ "Add" OpHelp("r[P3]=r[P1]+r[P2]"),
+ /* 104 */ "Subtract" OpHelp("r[P3]=r[P2]-r[P1]"),
+ /* 105 */ "Multiply" OpHelp("r[P3]=r[P1]*r[P2]"),
+ /* 106 */ "Divide" OpHelp("r[P3]=r[P2]/r[P1]"),
+ /* 107 */ "Remainder" OpHelp("r[P3]=r[P2]%r[P1]"),
+ /* 108 */ "Concat" OpHelp("r[P3]=r[P2]+r[P1]"),
+ /* 109 */ "OpenDup" OpHelp(""),
+ /* 110 */ "BitNot" OpHelp("r[P2]= ~r[P1]"),
+ /* 111 */ "OpenAutoindex" OpHelp("nColumn=P2"),
+ /* 112 */ "OpenEphemeral" OpHelp("nColumn=P2"),
+ /* 113 */ "String8" OpHelp("r[P2]='P4'"),
/* 114 */ "SorterOpen" OpHelp(""),
/* 115 */ "SequenceTest" OpHelp("if( cursor[P1].ctr++ ) pc = P2"),
/* 116 */ "OpenPseudo" OpHelp("P3 columns in r[P2]"),
@@ -31842,57 +32432,56 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){
/* 120 */ "Sequence" OpHelp("r[P2]=cursor[P1].ctr++"),
/* 121 */ "NewRowid" OpHelp("r[P2]=rowid"),
/* 122 */ "Insert" OpHelp("intkey=r[P3] data=r[P2]"),
- /* 123 */ "InsertInt" OpHelp("intkey=P3 data=r[P2]"),
- /* 124 */ "Delete" OpHelp(""),
- /* 125 */ "ResetCount" OpHelp(""),
- /* 126 */ "SorterCompare" OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"),
- /* 127 */ "SorterData" OpHelp("r[P2]=data"),
- /* 128 */ "RowData" OpHelp("r[P2]=data"),
- /* 129 */ "Rowid" OpHelp("r[P2]=rowid"),
- /* 130 */ "NullRow" OpHelp(""),
- /* 131 */ "SeekEnd" OpHelp(""),
- /* 132 */ "SorterInsert" OpHelp("key=r[P2]"),
- /* 133 */ "IdxInsert" OpHelp("key=r[P2]"),
- /* 134 */ "IdxDelete" OpHelp("key=r[P2@P3]"),
- /* 135 */ "DeferredSeek" OpHelp("Move P3 to P1.rowid if needed"),
- /* 136 */ "IdxRowid" OpHelp("r[P2]=rowid"),
- /* 137 */ "Destroy" OpHelp(""),
- /* 138 */ "Clear" OpHelp(""),
- /* 139 */ "ResetSorter" OpHelp(""),
- /* 140 */ "CreateBtree" OpHelp("r[P2]=root iDb=P1 flags=P3"),
- /* 141 */ "Real" OpHelp("r[P2]=P4"),
- /* 142 */ "SqlExec" OpHelp(""),
- /* 143 */ "ParseSchema" OpHelp(""),
- /* 144 */ "LoadAnalysis" OpHelp(""),
- /* 145 */ "DropTable" OpHelp(""),
- /* 146 */ "DropIndex" OpHelp(""),
- /* 147 */ "DropTrigger" OpHelp(""),
- /* 148 */ "IntegrityCk" OpHelp(""),
- /* 149 */ "RowSetAdd" OpHelp("rowset(P1)=r[P2]"),
- /* 150 */ "Param" OpHelp(""),
- /* 151 */ "FkCounter" OpHelp("fkctr[P1]+=P2"),
- /* 152 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"),
- /* 153 */ "OffsetLimit" OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"),
- /* 154 */ "AggInverse" OpHelp("accum=r[P3] inverse(r[P2@P5])"),
- /* 155 */ "AggStep" OpHelp("accum=r[P3] step(r[P2@P5])"),
- /* 156 */ "AggStep1" OpHelp("accum=r[P3] step(r[P2@P5])"),
- /* 157 */ "AggValue" OpHelp("r[P3]=value N=P2"),
- /* 158 */ "AggFinal" OpHelp("accum=r[P1] N=P2"),
- /* 159 */ "Expire" OpHelp(""),
- /* 160 */ "TableLock" OpHelp("iDb=P1 root=P2 write=P3"),
- /* 161 */ "VBegin" OpHelp(""),
- /* 162 */ "VCreate" OpHelp(""),
- /* 163 */ "VDestroy" OpHelp(""),
- /* 164 */ "VOpen" OpHelp(""),
- /* 165 */ "VColumn" OpHelp("r[P3]=vcolumn(P2)"),
- /* 166 */ "VRename" OpHelp(""),
- /* 167 */ "Pagecount" OpHelp(""),
- /* 168 */ "MaxPgcnt" OpHelp(""),
- /* 169 */ "Trace" OpHelp(""),
- /* 170 */ "CursorHint" OpHelp(""),
- /* 171 */ "Noop" OpHelp(""),
- /* 172 */ "Explain" OpHelp(""),
- /* 173 */ "Abortable" OpHelp(""),
+ /* 123 */ "Delete" OpHelp(""),
+ /* 124 */ "ResetCount" OpHelp(""),
+ /* 125 */ "SorterCompare" OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"),
+ /* 126 */ "SorterData" OpHelp("r[P2]=data"),
+ /* 127 */ "RowData" OpHelp("r[P2]=data"),
+ /* 128 */ "Rowid" OpHelp("r[P2]=rowid"),
+ /* 129 */ "NullRow" OpHelp(""),
+ /* 130 */ "SeekEnd" OpHelp(""),
+ /* 131 */ "SorterInsert" OpHelp("key=r[P2]"),
+ /* 132 */ "IdxInsert" OpHelp("key=r[P2]"),
+ /* 133 */ "IdxDelete" OpHelp("key=r[P2@P3]"),
+ /* 134 */ "DeferredSeek" OpHelp("Move P3 to P1.rowid if needed"),
+ /* 135 */ "IdxRowid" OpHelp("r[P2]=rowid"),
+ /* 136 */ "Destroy" OpHelp(""),
+ /* 137 */ "Clear" OpHelp(""),
+ /* 138 */ "ResetSorter" OpHelp(""),
+ /* 139 */ "CreateBtree" OpHelp("r[P2]=root iDb=P1 flags=P3"),
+ /* 140 */ "SqlExec" OpHelp(""),
+ /* 141 */ "ParseSchema" OpHelp(""),
+ /* 142 */ "LoadAnalysis" OpHelp(""),
+ /* 143 */ "DropTable" OpHelp(""),
+ /* 144 */ "DropIndex" OpHelp(""),
+ /* 145 */ "DropTrigger" OpHelp(""),
+ /* 146 */ "IntegrityCk" OpHelp(""),
+ /* 147 */ "RowSetAdd" OpHelp("rowset(P1)=r[P2]"),
+ /* 148 */ "Real" OpHelp("r[P2]=P4"),
+ /* 149 */ "Param" OpHelp(""),
+ /* 150 */ "FkCounter" OpHelp("fkctr[P1]+=P2"),
+ /* 151 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"),
+ /* 152 */ "OffsetLimit" OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"),
+ /* 153 */ "AggInverse" OpHelp("accum=r[P3] inverse(r[P2@P5])"),
+ /* 154 */ "AggStep" OpHelp("accum=r[P3] step(r[P2@P5])"),
+ /* 155 */ "AggStep1" OpHelp("accum=r[P3] step(r[P2@P5])"),
+ /* 156 */ "AggValue" OpHelp("r[P3]=value N=P2"),
+ /* 157 */ "AggFinal" OpHelp("accum=r[P1] N=P2"),
+ /* 158 */ "Expire" OpHelp(""),
+ /* 159 */ "TableLock" OpHelp("iDb=P1 root=P2 write=P3"),
+ /* 160 */ "VBegin" OpHelp(""),
+ /* 161 */ "VCreate" OpHelp(""),
+ /* 162 */ "VDestroy" OpHelp(""),
+ /* 163 */ "VOpen" OpHelp(""),
+ /* 164 */ "VColumn" OpHelp("r[P3]=vcolumn(P2)"),
+ /* 165 */ "VRename" OpHelp(""),
+ /* 166 */ "Pagecount" OpHelp(""),
+ /* 167 */ "MaxPgcnt" OpHelp(""),
+ /* 168 */ "Trace" OpHelp(""),
+ /* 169 */ "CursorHint" OpHelp(""),
+ /* 170 */ "Noop" OpHelp(""),
+ /* 171 */ "Explain" OpHelp(""),
+ /* 172 */ "Abortable" OpHelp(""),
};
return azName[i];
}
@@ -32007,13 +32596,29 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){
# include
#endif /* SQLITE_ENABLE_LOCKING_STYLE */
-#if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \
- (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000))
-# if (!defined(TARGET_OS_EMBEDDED) || (TARGET_OS_EMBEDDED==0)) \
- && (!defined(TARGET_IPHONE_SIMULATOR) || (TARGET_IPHONE_SIMULATOR==0))
-# define HAVE_GETHOSTUUID 1
-# else
-# warning "gethostuuid() is disabled."
+/*
+** Try to determine if gethostuuid() is available based on standard
+** macros. This might sometimes compute the wrong value for some
+** obscure platforms. For those cases, simply compile with one of
+** the following:
+**
+** -DHAVE_GETHOSTUUID=0
+** -DHAVE_GETHOSTUUID=1
+**
+** None if this matters except when building on Apple products with
+** -DSQLITE_ENABLE_LOCKING_STYLE.
+*/
+#ifndef HAVE_GETHOSTUUID
+# define HAVE_GETHOSTUUID 0
+# if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \
+ (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000))
+# if (!defined(TARGET_OS_EMBEDDED) || (TARGET_OS_EMBEDDED==0)) \
+ && (!defined(TARGET_IPHONE_SIMULATOR) || (TARGET_IPHONE_SIMULATOR==0))
+# undef HAVE_GETHOSTUUID
+# define HAVE_GETHOSTUUID 1
+# else
+# warning "gethostuuid() is disabled."
+# endif
# endif
#endif
@@ -32038,12 +32643,10 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){
#define SQLITE_FSFLAGS_IS_MSDOS 0x1
/*
-** If we are to be thread-safe, include the pthreads header and define
-** the SQLITE_UNIX_THREADS macro.
+** If we are to be thread-safe, include the pthreads header.
*/
#if SQLITE_THREADSAFE
/* # include */
-# define SQLITE_UNIX_THREADS 1
#endif
/*
@@ -32623,13 +33226,14 @@ static struct unix_syscall {
#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
# ifdef __ANDROID__
{ "ioctl", (sqlite3_syscall_ptr)(int(*)(int, int, ...))ioctl, 0 },
+#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
# else
{ "ioctl", (sqlite3_syscall_ptr)ioctl, 0 },
+#define osIoctl ((int(*)(int,unsigned long,...))aSyscall[28].pCurrent)
# endif
#else
{ "ioctl", (sqlite3_syscall_ptr)0, 0 },
#endif
-#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
}; /* End of the overrideable system calls */
@@ -33219,8 +33823,7 @@ struct unixFileId {
/*
** An instance of the following structure is allocated for each open
-** inode. Or, on LinuxThreads, there is one of these structures for
-** each inode opened by each thread.
+** inode.
**
** A single inode can have multiple file descriptors, so each unixFile
** structure contains a pointer to an instance of this object and this
@@ -33266,13 +33869,16 @@ struct unixInodeInfo {
/*
** A lists of all unixInodeInfo objects.
+**
+** Must hold unixBigLock in order to read or write this variable.
*/
static unixInodeInfo *inodeList = 0; /* All unixInodeInfo objects */
#ifdef SQLITE_DEBUG
/*
-** True if the inode mutex is held, or not. Used only within assert()
-** to help verify correct mutex usage.
+** True if the inode mutex (on the unixFile.pFileMutex field) is held, or not.
+** This routine is used only within assert() to help verify correct mutex
+** usage.
*/
int unixFileMutexHeld(unixFile *pFile){
assert( pFile->pInode );
@@ -33400,8 +34006,8 @@ static void closePendingFds(unixFile *pFile){
/*
** Release a unixInodeInfo structure previously allocated by findInodeInfo().
**
-** The mutex entered using the unixEnterMutex() function must be held
-** when this function is called.
+** The global mutex must be held when this routine is called, but the mutex
+** on the inode being deleted must NOT be held.
*/
static void releaseInodeInfo(unixFile *pFile){
unixInodeInfo *pInode = pFile->pInode;
@@ -33436,8 +34042,7 @@ static void releaseInodeInfo(unixFile *pFile){
** describes that file descriptor. Create a new one if necessary. The
** return value might be uninitialized if an error occurs.
**
-** The mutex entered using the unixEnterMutex() function must be held
-** when this function is called.
+** The global mutex must held when calling this routine.
**
** Return an appropriate error code.
*/
@@ -33498,6 +34103,7 @@ static int findInodeInfo(
#else
fileId.ino = (u64)statbuf.st_ino;
#endif
+ assert( unixMutexHeld() );
pInode = inodeList;
while( pInode && memcmp(&fileId, &pInode->fileId, sizeof(fileId)) ){
pInode = pInode->pNext;
@@ -33517,6 +34123,7 @@ static int findInodeInfo(
}
}
pInode->nRef = 1;
+ assert( unixMutexHeld() );
pInode->pNext = inodeList;
pInode->pPrev = 0;
if( inodeList ) inodeList->pPrev = pInode;
@@ -36314,18 +36921,18 @@ static int unixGetpagesize(void){
**
** The following fields are read-only after the object is created:
**
-** fid
+** hShm
** zFilename
**
-** Either unixShmNode.mutex must be held or unixShmNode.nRef==0 and
+** Either unixShmNode.pShmMutex must be held or unixShmNode.nRef==0 and
** unixMutexHeld() is true when reading or writing any other field
** in this structure.
*/
struct unixShmNode {
unixInodeInfo *pInode; /* unixInodeInfo that owns this SHM node */
- sqlite3_mutex *mutex; /* Mutex to access this object */
+ sqlite3_mutex *pShmMutex; /* Mutex to access this object */
char *zFilename; /* Name of the mmapped file */
- int h; /* Open file descriptor */
+ int hShm; /* Open file descriptor */
int szRegion; /* Size of shared-memory regions */
u16 nRegion; /* Size of array apRegion */
u8 isReadonly; /* True if read-only */
@@ -36347,16 +36954,16 @@ struct unixShmNode {
** The following fields are initialized when this object is created and
** are read-only thereafter:
**
-** unixShm.pFile
+** unixShm.pShmNode
** unixShm.id
**
-** All other fields are read/write. The unixShm.pFile->mutex must be held
-** while accessing any read/write fields.
+** All other fields are read/write. The unixShm.pShmNode->pShmMutex must
+** be held while accessing any read/write fields.
*/
struct unixShm {
unixShmNode *pShmNode; /* The underlying unixShmNode object */
unixShm *pNext; /* Next unixShm with the same unixShmNode */
- u8 hasMutex; /* True if holding the unixShmNode mutex */
+ u8 hasMutex; /* True if holding the unixShmNode->pShmMutex */
u8 id; /* Id of this connection within its unixShmNode */
u16 sharedMask; /* Mask of shared locks held */
u16 exclMask; /* Mask of exclusive locks held */
@@ -36386,7 +36993,8 @@ static int unixShmSystemLock(
/* Access to the unixShmNode object is serialized by the caller */
pShmNode = pFile->pInode->pShmNode;
- assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->mutex) );
+ assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->pShmMutex) );
+ assert( pShmNode->nRef>0 || unixMutexHeld() );
/* Shared locks never span more than one byte */
assert( n==1 || lockType!=F_RDLCK );
@@ -36394,13 +37002,13 @@ static int unixShmSystemLock(
/* Locks are within range */
assert( n>=1 && n<=SQLITE_SHM_NLOCK );
- if( pShmNode->h>=0 ){
+ if( pShmNode->hShm>=0 ){
/* Initialize the locking parameters */
f.l_type = lockType;
f.l_whence = SEEK_SET;
f.l_start = ofst;
f.l_len = n;
- rc = osSetPosixAdvisoryLock(pShmNode->h, &f, pFile);
+ rc = osSetPosixAdvisoryLock(pShmNode->hShm, &f, pFile);
rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
}
@@ -36472,18 +37080,18 @@ static void unixShmPurge(unixFile *pFd){
int nShmPerMap = unixShmRegionPerMap();
int i;
assert( p->pInode==pFd->pInode );
- sqlite3_mutex_free(p->mutex);
+ sqlite3_mutex_free(p->pShmMutex);
for(i=0; inRegion; i+=nShmPerMap){
- if( p->h>=0 ){
+ if( p->hShm>=0 ){
osMunmap(p->apRegion[i], p->szRegion);
}else{
sqlite3_free(p->apRegion[i]);
}
}
sqlite3_free(p->apRegion);
- if( p->h>=0 ){
- robust_close(pFd, p->h, __LINE__);
- p->h = -1;
+ if( p->hShm>=0 ){
+ robust_close(pFd, p->hShm, __LINE__);
+ p->hShm = -1;
}
p->pInode->pShmNode = 0;
sqlite3_free(p);
@@ -36525,7 +37133,7 @@ static int unixLockSharedMemory(unixFile *pDbFd, unixShmNode *pShmNode){
lock.l_start = UNIX_SHM_DMS;
lock.l_len = 1;
lock.l_type = F_WRLCK;
- if( osFcntl(pShmNode->h, F_GETLK, &lock)!=0 ) {
+ if( osFcntl(pShmNode->hShm, F_GETLK, &lock)!=0 ) {
rc = SQLITE_IOERR_LOCK;
}else if( lock.l_type==F_UNLCK ){
if( pShmNode->isReadonly ){
@@ -36533,7 +37141,12 @@ static int unixLockSharedMemory(unixFile *pDbFd, unixShmNode *pShmNode){
rc = SQLITE_READONLY_CANTINIT;
}else{
rc = unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1);
- if( rc==SQLITE_OK && robust_ftruncate(pShmNode->h, 0) ){
+ /* The first connection to attach must truncate the -shm file. We
+ ** truncate to 3 bytes (an arbitrary small number, less than the
+ ** -shm header size) rather than 0 as a system debugging aid, to
+ ** help detect if a -shm file truncation is legitimate or is the work
+ ** or a rogue process. */
+ if( rc==SQLITE_OK && robust_ftruncate(pShmNode->hShm, 3) ){
rc = unixLogError(SQLITE_IOERR_SHMOPEN,"ftruncate",pShmNode->zFilename);
}
}
@@ -36639,12 +37252,12 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
sqlite3_snprintf(nShmFilename, zShm, "%s-shm", zBasePath);
sqlite3FileSuffix3(pDbFd->zPath, zShm);
#endif
- pShmNode->h = -1;
+ pShmNode->hShm = -1;
pDbFd->pInode->pShmNode = pShmNode;
pShmNode->pInode = pDbFd->pInode;
if( sqlite3GlobalConfig.bCoreMutex ){
- pShmNode->mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
- if( pShmNode->mutex==0 ){
+ pShmNode->pShmMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+ if( pShmNode->pShmMutex==0 ){
rc = SQLITE_NOMEM_BKPT;
goto shm_open_err;
}
@@ -36652,11 +37265,11 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
if( pInode->bProcessLock==0 ){
if( 0==sqlite3_uri_boolean(pDbFd->zPath, "readonly_shm", 0) ){
- pShmNode->h = robust_open(zShm, O_RDWR|O_CREAT, (sStat.st_mode&0777));
+ pShmNode->hShm = robust_open(zShm, O_RDWR|O_CREAT,(sStat.st_mode&0777));
}
- if( pShmNode->h<0 ){
- pShmNode->h = robust_open(zShm, O_RDONLY, (sStat.st_mode&0777));
- if( pShmNode->h<0 ){
+ if( pShmNode->hShm<0 ){
+ pShmNode->hShm = robust_open(zShm, O_RDONLY, (sStat.st_mode&0777));
+ if( pShmNode->hShm<0 ){
rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShm);
goto shm_open_err;
}
@@ -36667,7 +37280,7 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
** is owned by the same user that owns the original database. Otherwise,
** the original owner will not be able to connect.
*/
- robustFchown(pShmNode->h, sStat.st_uid, sStat.st_gid);
+ robustFchown(pShmNode->hShm, sStat.st_uid, sStat.st_gid);
rc = unixLockSharedMemory(pDbFd, pShmNode);
if( rc!=SQLITE_OK && rc!=SQLITE_READONLY_CANTINIT ) goto shm_open_err;
@@ -36687,13 +37300,13 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
** the cover of the unixEnterMutex() mutex and the pointer from the
** new (struct unixShm) object to the pShmNode has been set. All that is
** left to do is to link the new object into the linked list starting
- ** at pShmNode->pFirst. This must be done while holding the pShmNode->mutex
- ** mutex.
+ ** at pShmNode->pFirst. This must be done while holding the
+ ** pShmNode->pShmMutex.
*/
- sqlite3_mutex_enter(pShmNode->mutex);
+ sqlite3_mutex_enter(pShmNode->pShmMutex);
p->pNext = pShmNode->pFirst;
pShmNode->pFirst = p;
- sqlite3_mutex_leave(pShmNode->mutex);
+ sqlite3_mutex_leave(pShmNode->pShmMutex);
return rc;
/* Jump here on any error */
@@ -36745,7 +37358,7 @@ static int unixShmMap(
p = pDbFd->pShm;
pShmNode = p->pShmNode;
- sqlite3_mutex_enter(pShmNode->mutex);
+ sqlite3_mutex_enter(pShmNode->pShmMutex);
if( pShmNode->isUnlocked ){
rc = unixLockSharedMemory(pDbFd, pShmNode);
if( rc!=SQLITE_OK ) goto shmpage_out;
@@ -36753,8 +37366,8 @@ static int unixShmMap(
}
assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 );
assert( pShmNode->pInode==pDbFd->pInode );
- assert( pShmNode->h>=0 || pDbFd->pInode->bProcessLock==1 );
- assert( pShmNode->h<0 || pDbFd->pInode->bProcessLock==0 );
+ assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
+ assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );
/* Minimum number of regions required to be mapped. */
nReqRegion = ((iRegion+nShmPerMap) / nShmPerMap) * nShmPerMap;
@@ -36766,12 +37379,12 @@ static int unixShmMap(
pShmNode->szRegion = szRegion;
- if( pShmNode->h>=0 ){
+ if( pShmNode->hShm>=0 ){
/* The requested region is not mapped into this processes address space.
** Check to see if it has been allocated (i.e. if the wal-index file is
** large enough to contain the requested region).
*/
- if( osFstat(pShmNode->h, &sStat) ){
+ if( osFstat(pShmNode->hShm, &sStat) ){
rc = SQLITE_IOERR_SHMSIZE;
goto shmpage_out;
}
@@ -36799,7 +37412,7 @@ static int unixShmMap(
assert( (nByte % pgsz)==0 );
for(iPg=(sStat.st_size/pgsz); iPg<(nByte/pgsz); iPg++){
int x = 0;
- if( seekAndWriteFd(pShmNode->h, iPg*pgsz + pgsz-1, "", 1, &x)!=1 ){
+ if( seekAndWriteFd(pShmNode->hShm, iPg*pgsz + pgsz-1,"",1,&x)!=1 ){
const char *zFile = pShmNode->zFilename;
rc = unixLogError(SQLITE_IOERR_SHMSIZE, "write", zFile);
goto shmpage_out;
@@ -36822,22 +37435,22 @@ static int unixShmMap(
int nMap = szRegion*nShmPerMap;
int i;
void *pMem;
- if( pShmNode->h>=0 ){
+ if( pShmNode->hShm>=0 ){
pMem = osMmap(0, nMap,
pShmNode->isReadonly ? PROT_READ : PROT_READ|PROT_WRITE,
- MAP_SHARED, pShmNode->h, szRegion*(i64)pShmNode->nRegion
+ MAP_SHARED, pShmNode->hShm, szRegion*(i64)pShmNode->nRegion
);
if( pMem==MAP_FAILED ){
rc = unixLogError(SQLITE_IOERR_SHMMAP, "mmap", pShmNode->zFilename);
goto shmpage_out;
}
}else{
- pMem = sqlite3_malloc64(szRegion);
+ pMem = sqlite3_malloc64(nMap);
if( pMem==0 ){
rc = SQLITE_NOMEM_BKPT;
goto shmpage_out;
}
- memset(pMem, 0, szRegion);
+ memset(pMem, 0, nMap);
}
for(i=0; iisReadonly && rc==SQLITE_OK ) rc = SQLITE_READONLY;
- sqlite3_mutex_leave(pShmNode->mutex);
+ sqlite3_mutex_leave(pShmNode->pShmMutex);
return rc;
}
@@ -36888,12 +37501,12 @@ static int unixShmLock(
|| flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED)
|| flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE) );
assert( n==1 || (flags & SQLITE_SHM_EXCLUSIVE)!=0 );
- assert( pShmNode->h>=0 || pDbFd->pInode->bProcessLock==1 );
- assert( pShmNode->h<0 || pDbFd->pInode->bProcessLock==0 );
+ assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
+ assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );
mask = (1<<(ofst+n)) - (1<1 || mask==(1<mutex);
+ sqlite3_mutex_enter(pShmNode->pShmMutex);
if( flags & SQLITE_SHM_UNLOCK ){
u16 allMask = 0; /* Mask of locks held by siblings */
@@ -36966,7 +37579,7 @@ static int unixShmLock(
}
}
}
- sqlite3_mutex_leave(pShmNode->mutex);
+ sqlite3_mutex_leave(pShmNode->pShmMutex);
OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
p->id, osGetpid(0), p->sharedMask, p->exclMask));
return rc;
@@ -37016,14 +37629,14 @@ static int unixShmUnmap(
/* Remove connection p from the set of connections associated
** with pShmNode */
- sqlite3_mutex_enter(pShmNode->mutex);
+ sqlite3_mutex_enter(pShmNode->pShmMutex);
for(pp=&pShmNode->pFirst; (*pp)!=p; pp = &(*pp)->pNext){}
*pp = p->pNext;
/* Free the connection p */
sqlite3_free(p);
pDbFd->pShm = 0;
- sqlite3_mutex_leave(pShmNode->mutex);
+ sqlite3_mutex_leave(pShmNode->pShmMutex);
/* If pShmNode->nRef has reached 0, then close the underlying
** shared-memory file, too */
@@ -37032,7 +37645,7 @@ static int unixShmUnmap(
assert( pShmNode->nRef>0 );
pShmNode->nRef--;
if( pShmNode->nRef==0 ){
- if( deleteFlag && pShmNode->h>=0 ){
+ if( deleteFlag && pShmNode->hShm>=0 ){
osUnlink(pShmNode->zFilename);
}
unixShmPurge(pDbFd);
@@ -37862,6 +38475,7 @@ static UnixUnusedFd *findReusableFd(const char *zPath, int flags){
UnixUnusedFd **pp;
assert( sqlite3_mutex_notheld(pInode->pLockMutex) );
sqlite3_mutex_enter(pInode->pLockMutex);
+ flags &= (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
for(pp=&pInode->pUnused; *pp && (*pp)->flags!=flags; pp=&((*pp)->pNext));
pUnused = *pp;
if( pUnused ){
@@ -37915,7 +38529,7 @@ static int getFileMode(
** If the SQLITE_ENABLE_8_3_NAMES option is enabled, then the
** original filename is unavailable. But 8_3_NAMES is only used for
** FAT filesystems and permissions do not matter there, so just use
-** the default permissions.
+** the default permissions. In 8_3_NAMES mode, leave *pMode set to zero.
*/
static int findCreateFileMode(
const char *zPath, /* Path of file (possibly) being created */
@@ -38150,11 +38764,19 @@ static int unixOpen(
goto open_finished;
}
- /* If this process is running as root and if creating a new rollback
- ** journal or WAL file, set the ownership of the journal or WAL to be
- ** the same as the original database.
+ /* The owner of the rollback journal or WAL file should always be the
+ ** same as the owner of the database file. Try to ensure that this is
+ ** the case. The chown() system call will be a no-op if the current
+ ** process lacks root privileges, be we should at least try. Without
+ ** this step, if a root process opens a database file, it can leave
+ ** behinds a journal/WAL that is owned by root and hence make the
+ ** database inaccessible to unprivileged processes.
+ **
+ ** If openMode==0, then that means uid and gid are not set correctly
+ ** (probably because SQLite is configured to use 8+3 filename mode) and
+ ** in that case we do not want to attempt the chown().
*/
- if( flags & (SQLITE_OPEN_WAL|SQLITE_OPEN_MAIN_JOURNAL) ){
+ if( openMode && (flags & (SQLITE_OPEN_WAL|SQLITE_OPEN_MAIN_JOURNAL))!=0 ){
robustFchown(fd, uid, gid);
}
}
@@ -38165,7 +38787,8 @@ static int unixOpen(
if( p->pPreallocatedUnused ){
p->pPreallocatedUnused->fd = fd;
- p->pPreallocatedUnused->flags = flags;
+ p->pPreallocatedUnused->flags =
+ flags & (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
}
if( isDelete ){
@@ -39011,7 +39634,7 @@ SQLITE_API int sqlite3_hostid_num = 0;
#define PROXY_HOSTIDLEN 16 /* conch file host id length */
-#ifdef HAVE_GETHOSTUUID
+#if HAVE_GETHOSTUUID
/* Not always defined in the headers as it ought to be */
extern int gethostuuid(uuid_t id, const struct timespec *wait);
#endif
@@ -39022,7 +39645,7 @@ extern int gethostuuid(uuid_t id, const struct timespec *wait);
static int proxyGetHostID(unsigned char *pHostID, int *pError){
assert(PROXY_HOSTIDLEN == sizeof(uuid_t));
memset(pHostID, 0, PROXY_HOSTIDLEN);
-#ifdef HAVE_GETHOSTUUID
+#if HAVE_GETHOSTUUID
{
struct timespec timeout = {1, 0}; /* 1 sec timeout */
if( gethostuuid(pHostID, &timeout) ){
@@ -39696,7 +40319,7 @@ static int proxyFileControl(sqlite3_file *id, int op, void *pArg){
assert( 0 ); /* The call assures that only valid opcodes are sent */
}
}
- /*NOTREACHED*/
+ /*NOTREACHED*/ assert(0);
return SQLITE_ERROR;
}
@@ -40450,8 +41073,7 @@ struct winFile {
int nFetchOut; /* Number of outstanding xFetch references */
HANDLE hMap; /* Handle for accessing memory mapping */
void *pMapRegion; /* Area memory mapped */
- sqlite3_int64 mmapSize; /* Usable size of mapped region */
- sqlite3_int64 mmapSizeActual; /* Actual size of mapped region */
+ sqlite3_int64 mmapSize; /* Size of mapped region */
sqlite3_int64 mmapSizeMax; /* Configured FCNTL_MMAP_SIZE value */
#endif
};
@@ -43072,6 +43694,26 @@ static int winTruncate(sqlite3_file *id, sqlite3_int64 nByte){
DWORD lastErrno;
#if SQLITE_MAX_MMAP_SIZE>0
sqlite3_int64 oldMmapSize;
+ if( pFile->nFetchOut>0 ){
+ /* File truncation is a no-op if there are outstanding memory mapped
+ ** pages. This is because truncating the file means temporarily unmapping
+ ** the file, and that might delete memory out from under existing cursors.
+ **
+ ** This can result in incremental vacuum not truncating the file,
+ ** if there is an active read cursor when the incremental vacuum occurs.
+ ** No real harm comes of this - the database file is not corrupted,
+ ** though some folks might complain that the file is bigger than it
+ ** needs to be.
+ **
+ ** The only feasible work-around is to defer the truncation until after
+ ** all references to memory-mapped content are closed. That is doable,
+ ** but involves adding a few branches in the common write code path which
+ ** could slow down normal operations slightly. Hence, we have decided for
+ ** now to simply make trancations a no-op if there are pending reads. We
+ ** can maybe revisit this decision in the future.
+ */
+ return SQLITE_OK;
+ }
#endif
assert( pFile );
@@ -44362,6 +45004,7 @@ static int winShmMap(
rc = winOpenSharedMemory(pDbFd);
if( rc!=SQLITE_OK ) return rc;
pShm = pDbFd->pShm;
+ assert( pShm!=0 );
}
pShmNode = pShm->pShmNode;
@@ -44500,9 +45143,9 @@ shmpage_out:
static int winUnmapfile(winFile *pFile){
assert( pFile!=0 );
OSTRACE(("UNMAP-FILE pid=%lu, pFile=%p, hMap=%p, pMapRegion=%p, "
- "mmapSize=%lld, mmapSizeActual=%lld, mmapSizeMax=%lld\n",
+ "mmapSize=%lld, mmapSizeMax=%lld\n",
osGetCurrentProcessId(), pFile, pFile->hMap, pFile->pMapRegion,
- pFile->mmapSize, pFile->mmapSizeActual, pFile->mmapSizeMax));
+ pFile->mmapSize, pFile->mmapSizeMax));
if( pFile->pMapRegion ){
if( !osUnmapViewOfFile(pFile->pMapRegion) ){
pFile->lastErrno = osGetLastError();
@@ -44514,7 +45157,6 @@ static int winUnmapfile(winFile *pFile){
}
pFile->pMapRegion = 0;
pFile->mmapSize = 0;
- pFile->mmapSizeActual = 0;
}
if( pFile->hMap!=NULL ){
if( !osCloseHandle(pFile->hMap) ){
@@ -44625,7 +45267,6 @@ static int winMapfile(winFile *pFd, sqlite3_int64 nByte){
}
pFd->pMapRegion = pNew;
pFd->mmapSize = nMap;
- pFd->mmapSizeActual = nMap;
}
OSTRACE(("MAP-FILE pid=%lu, pFile=%p, rc=SQLITE_OK\n",
@@ -44666,6 +45307,7 @@ static int winFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){
}
}
if( pFd->mmapSize >= iOff+nAmt ){
+ assert( pFd->pMapRegion!=0 );
*pp = &((u8 *)pFd->pMapRegion)[iOff];
pFd->nFetchOut++;
}
@@ -45427,7 +46069,6 @@ static int winOpen(
pFile->hMap = NULL;
pFile->pMapRegion = 0;
pFile->mmapSize = 0;
- pFile->mmapSizeActual = 0;
pFile->mmapSizeMax = sqlite3GlobalConfig.szMmap;
#endif
@@ -46320,7 +46961,8 @@ typedef struct MemFile MemFile;
struct MemFile {
sqlite3_file base; /* IO methods */
sqlite3_int64 sz; /* Size of the file */
- sqlite3_int64 szMax; /* Space allocated to aData */
+ sqlite3_int64 szAlloc; /* Space allocated to aData */
+ sqlite3_int64 szMax; /* Maximum allowed size of the file */
unsigned char *aData; /* content of the file */
int nMmap; /* Number of memory mapped pages */
unsigned mFlags; /* Flags */
@@ -46446,10 +47088,15 @@ static int memdbEnlarge(MemFile *p, sqlite3_int64 newSz){
if( (p->mFlags & SQLITE_DESERIALIZE_RESIZEABLE)==0 || p->nMmap>0 ){
return SQLITE_FULL;
}
+ if( newSz>p->szMax ){
+ return SQLITE_FULL;
+ }
+ newSz *= 2;
+ if( newSz>p->szMax ) newSz = p->szMax;
pNew = sqlite3_realloc64(p->aData, newSz);
if( pNew==0 ) return SQLITE_NOMEM;
p->aData = pNew;
- p->szMax = newSz;
+ p->szAlloc = newSz;
return SQLITE_OK;
}
@@ -46463,10 +47110,11 @@ static int memdbWrite(
sqlite_int64 iOfst
){
MemFile *p = (MemFile *)pFile;
+ if( NEVER(p->mFlags & SQLITE_DESERIALIZE_READONLY) ) return SQLITE_READONLY;
if( iOfst+iAmt>p->sz ){
int rc;
- if( iOfst+iAmt>p->szMax
- && (rc = memdbEnlarge(p, (iOfst+iAmt)*2))!=SQLITE_OK
+ if( iOfst+iAmt>p->szAlloc
+ && (rc = memdbEnlarge(p, iOfst+iAmt))!=SQLITE_OK
){
return rc;
}
@@ -46512,6 +47160,11 @@ static int memdbFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
*/
static int memdbLock(sqlite3_file *pFile, int eLock){
MemFile *p = (MemFile *)pFile;
+ if( eLock>SQLITE_LOCK_SHARED
+ && (p->mFlags & SQLITE_DESERIALIZE_READONLY)!=0
+ ){
+ return SQLITE_READONLY;
+ }
p->eLock = eLock;
return SQLITE_OK;
}
@@ -46536,6 +47189,19 @@ static int memdbFileControl(sqlite3_file *pFile, int op, void *pArg){
*(char**)pArg = sqlite3_mprintf("memdb(%p,%lld)", p->aData, p->sz);
rc = SQLITE_OK;
}
+ if( op==SQLITE_FCNTL_SIZE_LIMIT ){
+ sqlite3_int64 iLimit = *(sqlite3_int64*)pArg;
+ if( iLimitsz ){
+ if( iLimit<0 ){
+ iLimit = p->szMax;
+ }else{
+ iLimit = p->sz;
+ }
+ }
+ p->szMax = iLimit;
+ *(sqlite3_int64*)pArg = iLimit;
+ rc = SQLITE_OK;
+ }
return rc;
}
@@ -46566,8 +47232,12 @@ static int memdbFetch(
void **pp
){
MemFile *p = (MemFile *)pFile;
- p->nMmap++;
- *pp = (void*)(p->aData + iOfst);
+ if( iOfst+iAmt>p->sz ){
+ *pp = 0;
+ }else{
+ p->nMmap++;
+ *pp = (void*)(p->aData + iOfst);
+ }
return SQLITE_OK;
}
@@ -46597,6 +47267,7 @@ static int memdbOpen(
assert( pOutFlags!=0 ); /* True because flags==SQLITE_OPEN_MAIN_DB */
*pOutFlags = flags | SQLITE_OPEN_MEMORY;
p->base.pMethods = &memdb_io_methods;
+ p->szMax = sqlite3GlobalConfig.mxMemdbSize;
return SQLITE_OK;
}
@@ -46846,7 +47517,11 @@ SQLITE_API int sqlite3_deserialize(
}else{
p->aData = pData;
p->sz = szDb;
+ p->szAlloc = szBuf;
p->szMax = szBuf;
+ if( p->szMaxszMax = sqlite3GlobalConfig.mxMemdbSize;
+ }
p->mFlags = mFlags;
rc = SQLITE_OK;
}
@@ -47324,7 +47999,7 @@ bitvec_end:
** The PCache.pSynced variable is used to optimize searching for a dirty
** page to eject from the cache mid-transaction. It is better to eject
** a page that does not require a journal sync than one that does.
-** Therefore, pSynced is maintained to that it *almost* always points
+** Therefore, pSynced is maintained so that it *almost* always points
** to either the oldest page in the pDirty/pDirtyTail list that has a
** clear PGHDR_NEED_SYNC flag or to a page that is older than this one
** (so that the right page to eject can be found by following pDirtyPrev
@@ -47535,9 +48210,10 @@ static int numberOfCachePages(PCache *p){
** suggested cache size is set to N. */
return p->szCache;
}else{
- /* IMPLEMENTATION-OF: R-61436-13639 If the argument N is negative, then
- ** the number of cache pages is adjusted to use approximately abs(N*1024)
- ** bytes of memory. */
+ /* IMPLEMANTATION-OF: R-59858-46238 If the argument N is negative, then the
+ ** number of cache pages is adjusted to be a number of pages that would
+ ** use approximately abs(N*1024) bytes of memory based on the current
+ ** page size. */
return (int)((-1024*(i64)p->szCache)/(p->szPage+p->szExtra));
}
}
@@ -47553,6 +48229,7 @@ SQLITE_PRIVATE int sqlite3PcacheInitialize(void){
** built-in default page cache is used instead of the application defined
** page cache. */
sqlite3PCacheSetDefault();
+ assert( sqlite3GlobalConfig.pcache2.xInit!=0 );
}
return sqlite3GlobalConfig.pcache2.xInit(sqlite3GlobalConfig.pcache2.pArg);
}
@@ -48148,6 +48825,15 @@ SQLITE_PRIVATE int sqlite3PCachePercentDirty(PCache *pCache){
return nCache ? (int)(((i64)nDirty * 100) / nCache) : 0;
}
+#ifdef SQLITE_DIRECT_OVERFLOW_READ
+/*
+** Return true if there are one or more dirty pages in the cache. Else false.
+*/
+SQLITE_PRIVATE int sqlite3PCacheIsDirty(PCache *pCache){
+ return (pCache->pDirty!=0);
+}
+#endif
+
#if defined(SQLITE_CHECK_PAGES) || defined(SQLITE_DEBUG)
/*
** For all dirty pages currently in the cache, invoke the specified
@@ -48258,20 +48944,32 @@ typedef struct PGroup PGroup;
** structure. Unless SQLITE_PCACHE_SEPARATE_HEADER is defined, a buffer of
** PgHdr1.pCache->szPage bytes is allocated directly before this structure
** in memory.
+**
+** Note: Variables isBulkLocal and isAnchor were once type "u8". That works,
+** but causes a 2-byte gap in the structure for most architectures (since
+** pointers must be either 4 or 8-byte aligned). As this structure is located
+** in memory directly after the associated page data, if the database is
+** corrupt, code at the b-tree layer may overread the page buffer and
+** read part of this structure before the corruption is detected. This
+** can cause a valgrind error if the unitialized gap is accessed. Using u16
+** ensures there is no such gap, and therefore no bytes of unitialized memory
+** in the structure.
*/
struct PgHdr1 {
sqlite3_pcache_page page; /* Base class. Must be first. pBuf & pExtra */
unsigned int iKey; /* Key value (page number) */
- u8 isBulkLocal; /* This page from bulk local storage */
- u8 isAnchor; /* This is the PGroup.lru element */
+ u16 isBulkLocal; /* This page from bulk local storage */
+ u16 isAnchor; /* This is the PGroup.lru element */
PgHdr1 *pNext; /* Next in hash table chain */
PCache1 *pCache; /* Cache that currently owns this page */
PgHdr1 *pLruNext; /* Next in LRU list of unpinned pages */
PgHdr1 *pLruPrev; /* Previous in LRU list of unpinned pages */
+ /* NB: pLruPrev is only valid if pLruNext!=0 */
};
/*
-** A page is pinned if it is no on the LRU list
+** A page is pinned if it is not on the LRU list. To be "pinned" means
+** that the page is in active use and must not be deallocated.
*/
#define PAGE_IS_PINNED(p) ((p)->pLruNext==0)
#define PAGE_IS_UNPINNED(p) ((p)->pLruNext!=0)
@@ -48332,6 +49030,7 @@ struct PCache1 {
unsigned int nMax; /* Configured "cache_size" value */
unsigned int n90pct; /* nMax*9/10 */
unsigned int iMaxKey; /* Largest key seen since xTruncate() */
+ unsigned int nPurgeableDummy; /* pnPurgeable points here when not used*/
/* Hash table of all pages. The following variables may only be accessed
** when the accessor is holding the PGroup mutex.
@@ -48466,6 +49165,7 @@ static int pcache1InitBulk(PCache1 *pCache){
pX->isBulkLocal = 1;
pX->isAnchor = 0;
pX->pNext = pCache->pFree;
+ pX->pLruPrev = 0; /* Initializing this saves a valgrind error */
pCache->pFree = pX;
zBulk += pCache->szAlloc;
}while( --nBulk );
@@ -48576,6 +49276,7 @@ static PgHdr1 *pcache1AllocPage(PCache1 *pCache, int benignMalloc){
assert( sqlite3_mutex_held(pCache->pGroup->mutex) );
if( pCache->pFree || (pCache->nPage==0 && pcache1InitBulk(pCache)) ){
+ assert( pCache->pFree!=0 );
p = pCache->pFree;
pCache->pFree = p->pNext;
p->pNext = 0;
@@ -48641,6 +49342,7 @@ static void pcache1FreePage(PgHdr1 *p){
** exists, this function falls back to sqlite3Malloc().
*/
SQLITE_PRIVATE void *sqlite3PageMalloc(int sz){
+ assert( sz<=65536+8 ); /* These allocations are never very large */
return pcache1Alloc(sz);
}
@@ -48735,7 +49437,8 @@ static PgHdr1 *pcache1PinPage(PgHdr1 *pPage){
pPage->pLruPrev->pLruNext = pPage->pLruNext;
pPage->pLruNext->pLruPrev = pPage->pLruPrev;
pPage->pLruNext = 0;
- pPage->pLruPrev = 0;
+ /* pPage->pLruPrev = 0;
+ ** No need to clear pLruPrev as it is never accessed if pLruNext is 0 */
assert( pPage->isAnchor==0 );
assert( pPage->pCache->pGroup->lru.isAnchor==1 );
pPage->pCache->nRecyclable--;
@@ -48928,6 +49631,7 @@ static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
}else{
pGroup = &pcache1.grp;
}
+ pcache1EnterMutex(pGroup);
if( pGroup->lru.isAnchor==0 ){
pGroup->lru.isAnchor = 1;
pGroup->lru.pLruPrev = pGroup->lru.pLruNext = &pGroup->lru;
@@ -48937,7 +49641,6 @@ static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
pCache->szExtra = szExtra;
pCache->szAlloc = szPage + szExtra + ROUND8(sizeof(PgHdr1));
pCache->bPurgeable = (bPurgeable ? 1 : 0);
- pcache1EnterMutex(pGroup);
pcache1ResizeHash(pCache);
if( bPurgeable ){
pCache->nMin = 10;
@@ -48945,8 +49648,7 @@ static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
pCache->pnPurgeable = &pGroup->nPurgeable;
}else{
- static unsigned int dummyCurrentPage;
- pCache->pnPurgeable = &dummyCurrentPage;
+ pCache->pnPurgeable = &pCache->nPurgeableDummy;
}
pcache1LeaveMutex(pGroup);
if( pCache->nHash==0 ){
@@ -49073,8 +49775,9 @@ static SQLITE_NOINLINE PgHdr1 *pcache1FetchStage2(
pPage->iKey = iKey;
pPage->pNext = pCache->apHash[h];
pPage->pCache = pCache;
- pPage->pLruPrev = 0;
pPage->pLruNext = 0;
+ /* pPage->pLruPrev = 0;
+ ** No need to clear pLruPrev since it is not accessed when pLruNext==0 */
*(void **)pPage->page.pExtra = 0;
pCache->apHash[h] = pPage;
if( iKey>pCache->iMaxKey ){
@@ -49234,7 +49937,7 @@ static void pcache1Unpin(
/* It is an error to call this function if the page is already
** part of the PGroup LRU list.
*/
- assert( pPage->pLruPrev==0 && pPage->pLruNext==0 );
+ assert( pPage->pLruNext==0 );
assert( PAGE_IS_PINNED(pPage) );
if( reuseUnlikely || pGroup->nPurgeable>pGroup->nMaxPage ){
@@ -50911,19 +51614,33 @@ static const unsigned char aJournalMagic[] = {
*/
#define isOpen(pFd) ((pFd)->pMethods!=0)
+#ifdef SQLITE_DIRECT_OVERFLOW_READ
/*
-** Return true if this pager uses a write-ahead log to read page pgno.
-** Return false if the pager reads pgno directly from the database.
+** Return true if page pgno can be read directly from the database file
+** by the b-tree layer. This is the case if:
+**
+** * the database file is open,
+** * there are no dirty pages in the cache, and
+** * the desired page is not currently in the wal file.
*/
-#if !defined(SQLITE_OMIT_WAL) && defined(SQLITE_DIRECT_OVERFLOW_READ)
-SQLITE_PRIVATE int sqlite3PagerUseWal(Pager *pPager, Pgno pgno){
- u32 iRead = 0;
- int rc;
- if( pPager->pWal==0 ) return 0;
- rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
- return rc || iRead;
+SQLITE_PRIVATE int sqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno){
+ if( pPager->fd->pMethods==0 ) return 0;
+ if( sqlite3PCacheIsDirty(pPager->pPCache) ) return 0;
+#ifdef SQLITE_HAS_CODEC
+ if( pPager->xCodec!=0 ) return 0;
+#endif
+#ifndef SQLITE_OMIT_WAL
+ if( pPager->pWal ){
+ u32 iRead = 0;
+ int rc;
+ rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
+ return (rc==SQLITE_OK && iRead==0);
+ }
+#endif
+ return 1;
}
#endif
+
#ifndef SQLITE_OMIT_WAL
# define pagerUseWal(x) ((x)->pWal!=0)
#else
@@ -53861,8 +54578,14 @@ SQLITE_PRIVATE int sqlite3PagerSetPagesize(Pager *pPager, u32 *pPageSize, int nR
rc = sqlite3OsFileSize(pPager->fd, &nByte);
}
if( rc==SQLITE_OK ){
- pNew = (char *)sqlite3PageMalloc(pageSize);
- if( !pNew ) rc = SQLITE_NOMEM_BKPT;
+ /* 8 bytes of zeroed overrun space is sufficient so that the b-tree
+ * cell header parser will never run off the end of the allocation */
+ pNew = (char *)sqlite3PageMalloc(pageSize+8);
+ if( !pNew ){
+ rc = SQLITE_NOMEM_BKPT;
+ }else{
+ memset(pNew+pageSize, 0, 8);
+ }
}
if( rc==SQLITE_OK ){
@@ -53914,7 +54637,10 @@ SQLITE_PRIVATE int sqlite3PagerMaxPageCount(Pager *pPager, int mxPage){
pPager->mxPgno = mxPage;
}
assert( pPager->eState!=PAGER_OPEN ); /* Called only by OP_MaxPgcnt */
- assert( pPager->mxPgno>=pPager->dbSize ); /* OP_MaxPgcnt enforces this */
+ /* assert( pPager->mxPgno>=pPager->dbSize ); */
+ /* OP_MaxPgcnt ensures that the parameter passed to this function is not
+ ** less than the total number of valid pages in the database. But this
+ ** may be less than Pager.dbSize, and so the assert() above is not valid */
return pPager->mxPgno;
}
@@ -57107,7 +57833,11 @@ SQLITE_PRIVATE void sqlite3PagerSetCodec(
void (*xCodecFree)(void*),
void *pCodec
){
- if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
+ if( pPager->xCodecFree ){
+ pPager->xCodecFree(pPager->pCodec);
+ }else{
+ pager_reset(pPager);
+ }
pPager->xCodec = pPager->memDb ? 0 : xCodec;
pPager->xCodecSizeChng = xCodecSizeChng;
pPager->xCodecFree = xCodecFree;
@@ -57236,8 +57966,12 @@ SQLITE_PRIVATE int sqlite3PagerMovepage(Pager *pPager, DbPage *pPg, Pgno pgno, i
*/
pPg->flags &= ~PGHDR_NEED_SYNC;
pPgOld = sqlite3PagerLookup(pPager, pgno);
- assert( !pPgOld || pPgOld->nRef==1 );
+ assert( !pPgOld || pPgOld->nRef==1 || CORRUPT_DB );
if( pPgOld ){
+ if( pPgOld->nRef>1 ){
+ sqlite3PagerUnrefNotNull(pPgOld);
+ return SQLITE_CORRUPT_BKPT;
+ }
pPg->flags |= (pPgOld->flags&PGHDR_NEED_SYNC);
if( pPager->tempFile ){
/* Do not discard pages from an in-memory database since we might
@@ -57765,7 +58499,7 @@ SQLITE_PRIVATE int sqlite3PagerSnapshotCheck(Pager *pPager, sqlite3_snapshot *pS
*/
SQLITE_PRIVATE void sqlite3PagerSnapshotUnlock(Pager *pPager){
assert( pPager->pWal );
- return sqlite3WalSnapshotUnlock(pPager->pWal);
+ sqlite3WalSnapshotUnlock(pPager->pWal);
}
#endif /* SQLITE_ENABLE_SNAPSHOT */
@@ -58366,7 +59100,7 @@ static SQLITE_NOINLINE int walIndexPageRealloc(
/* Enlarge the pWal->apWiData[] array if required */
if( pWal->nWiData<=iPage ){
- int nByte = sizeof(u32*)*(iPage+1);
+ sqlite3_int64 nByte = sizeof(u32*)*(iPage+1);
volatile u32 **apNew;
apNew = (volatile u32 **)sqlite3_realloc64((void *)pWal->apWiData, nByte);
if( !apNew ){
@@ -58470,6 +59204,7 @@ static void walChecksumBytes(
assert( nByte>=8 );
assert( (nByte&0x00000007)==0 );
+ assert( nByte<=65536 );
if( nativeCksum ){
do {
@@ -58777,6 +59512,7 @@ static void walCleanupHash(Wal *pWal){
int iLimit = 0; /* Zero values greater than this */
int nByte; /* Number of bytes to zero in aPgno[] */
int i; /* Used to iterate through aHash[] */
+ int rc; /* Return code form walHashGet() */
assert( pWal->writeLock );
testcase( pWal->hdr.mxFrame==HASHTABLE_NPAGE_ONE-1 );
@@ -58787,11 +59523,12 @@ static void walCleanupHash(Wal *pWal){
/* Obtain pointers to the hash-table and page-number array containing
** the entry that corresponds to frame pWal->hdr.mxFrame. It is guaranteed
- ** that the page said hash-table and array reside on is already mapped.
+ ** that the page said hash-table and array reside on is already mapped.(1)
*/
assert( pWal->nWiData>walFramePage(pWal->hdr.mxFrame) );
assert( pWal->apWiData[walFramePage(pWal->hdr.mxFrame)] );
- walHashGet(pWal, walFramePage(pWal->hdr.mxFrame), &sLoc);
+ rc = walHashGet(pWal, walFramePage(pWal->hdr.mxFrame), &sLoc);
+ if( NEVER(rc) ) return; /* Defense-in-depth, in case (1) above is wrong */
/* Zero all hash-table entries that correspond to frame numbers greater
** than pWal->hdr.mxFrame.
@@ -59405,7 +60142,7 @@ static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){
WalIterator *p; /* Return value */
int nSegment; /* Number of segments to merge */
u32 iLast; /* Last frame in log */
- int nByte; /* Number of bytes to allocate */
+ sqlite3_int64 nByte; /* Number of bytes to allocate */
int i; /* Iterator variable */
ht_slot *aTmp; /* Temp space used by merge-sort */
int rc = SQLITE_OK; /* Return Code */
@@ -60696,9 +61433,9 @@ SQLITE_PRIVATE int sqlite3WalFindFrame(
}
nCollide = HASHTABLE_NSLOT;
for(iKey=walHash(pgno); sLoc.aHash[iKey]; iKey=walNextHash(iKey)){
- u32 iFrame = sLoc.aHash[iKey] + sLoc.iZero;
- if( iFrame<=iLast && iFrame>=pWal->minFrame
- && sLoc.aPgno[sLoc.aHash[iKey]]==pgno ){
+ u32 iH = sLoc.aHash[iKey];
+ u32 iFrame = iH + sLoc.iZero;
+ if( iFrame<=iLast && iFrame>=pWal->minFrame && sLoc.aPgno[iH]==pgno ){
assert( iFrame>iRead || CORRUPT_DB );
iRead = iFrame;
}
@@ -61266,6 +62003,7 @@ SQLITE_PRIVATE int sqlite3WalFrames(
if( rc ) return rc;
iOffset += szFrame;
nExtra++;
+ assert( pLast!=0 );
}
}
if( bSync ){
@@ -61298,6 +62036,7 @@ SQLITE_PRIVATE int sqlite3WalFrames(
iFrame++;
rc = walIndexAppend(pWal, iFrame, p->pgno);
}
+ assert( pLast!=0 || nExtra==0 );
while( rc==SQLITE_OK && nExtra>0 ){
iFrame++;
nExtra--;
@@ -61941,7 +62680,7 @@ struct MemPage {
u16 maxLocal; /* Copy of BtShared.maxLocal or BtShared.maxLeaf */
u16 minLocal; /* Copy of BtShared.minLocal or BtShared.minLeaf */
u16 cellOffset; /* Index in aData of first cell pointer */
- u16 nFree; /* Number of free bytes on the page */
+ int nFree; /* Number of free bytes on the page. -1 for unknown */
u16 nCell; /* Number of cells on this page, local and ovfl */
u16 maskPage; /* Mask for page offset */
u16 aiOvfl[4]; /* Insert the i-th overflow cell before the aiOvfl-th
@@ -62149,9 +62888,16 @@ struct CellInfo {
** found at self->pBt->mutex.
**
** skipNext meaning:
-** eState==SKIPNEXT && skipNext>0: Next sqlite3BtreeNext() is no-op.
-** eState==SKIPNEXT && skipNext<0: Next sqlite3BtreePrevious() is no-op.
-** eState==FAULT: Cursor fault with skipNext as error code.
+** The meaning of skipNext depends on the value of eState:
+**
+** eState Meaning of skipNext
+** VALID skipNext is meaningless and is ignored
+** INVALID skipNext is meaningless and is ignored
+** SKIPNEXT sqlite3BtreeNext() is a no-op if skipNext>0 and
+** sqlite3BtreePrevious() is no-op if skipNext<0.
+** REQUIRESEEK restoreCursorPosition() restores the cursor to
+** eState=SKIPNEXT if skipNext!=0
+** FAULT skipNext holds the cursor fault error code.
*/
struct BtCursor {
u8 eState; /* One of the CURSOR_XXX constants (see below) */
@@ -63315,13 +64061,19 @@ static int saveCursorKey(BtCursor *pCur){
/* Only the rowid is required for a table btree */
pCur->nKey = sqlite3BtreeIntegerKey(pCur);
}else{
- /* For an index btree, save the complete key content */
+ /* For an index btree, save the complete key content. It is possible
+ ** that the current key is corrupt. In that case, it is possible that
+ ** the sqlite3VdbeRecordUnpack() function may overread the buffer by
+ ** up to the size of 1 varint plus 1 8-byte value when the cursor
+ ** position is restored. Hence the 17 bytes of padding allocated
+ ** below. */
void *pKey;
pCur->nKey = sqlite3BtreePayloadSize(pCur);
- pKey = sqlite3Malloc( pCur->nKey );
+ pKey = sqlite3Malloc( pCur->nKey + 9 + 8 );
if( pKey ){
rc = sqlite3BtreePayload(pCur, 0, (int)pCur->nKey, pKey);
if( rc==SQLITE_OK ){
+ memset(((u8*)pKey)+pCur->nKey, 0, 9+8);
pCur->pKey = pKey;
}else{
sqlite3_free(pKey);
@@ -63453,11 +64205,12 @@ static int btreeMoveto(
UnpackedRecord *pIdxKey; /* Unpacked index key */
if( pKey ){
+ KeyInfo *pKeyInfo = pCur->pKeyInfo;
assert( nKey==(i64)(int)nKey );
- pIdxKey = sqlite3VdbeAllocUnpackedRecord(pCur->pKeyInfo);
+ pIdxKey = sqlite3VdbeAllocUnpackedRecord(pKeyInfo);
if( pIdxKey==0 ) return SQLITE_NOMEM_BKPT;
- sqlite3VdbeRecordUnpack(pCur->pKeyInfo, (int)nKey, pKey, pIdxKey);
- if( pIdxKey->nField==0 ){
+ sqlite3VdbeRecordUnpack(pKeyInfo, (int)nKey, pKey, pIdxKey);
+ if( pIdxKey->nField==0 || pIdxKey->nField>pKeyInfo->nAllField ){
rc = SQLITE_CORRUPT_BKPT;
goto moveto_done;
}
@@ -63481,19 +64234,23 @@ moveto_done:
*/
static int btreeRestoreCursorPosition(BtCursor *pCur){
int rc;
- int skipNext;
+ int skipNext = 0;
assert( cursorOwnsBtShared(pCur) );
assert( pCur->eState>=CURSOR_REQUIRESEEK );
if( pCur->eState==CURSOR_FAULT ){
return pCur->skipNext;
}
pCur->eState = CURSOR_INVALID;
- rc = btreeMoveto(pCur, pCur->pKey, pCur->nKey, 0, &skipNext);
+ if( sqlite3FaultSim(410) ){
+ rc = SQLITE_IOERR;
+ }else{
+ rc = btreeMoveto(pCur, pCur->pKey, pCur->nKey, 0, &skipNext);
+ }
if( rc==SQLITE_OK ){
sqlite3_free(pCur->pKey);
pCur->pKey = 0;
assert( pCur->eState==CURSOR_VALID || pCur->eState==CURSOR_INVALID );
- pCur->skipNext |= skipNext;
+ if( skipNext ) pCur->skipNext = skipNext;
if( pCur->skipNext && pCur->eState==CURSOR_VALID ){
pCur->eState = CURSOR_SKIPNEXT;
}
@@ -63563,7 +64320,6 @@ SQLITE_PRIVATE int sqlite3BtreeCursorRestore(BtCursor *pCur, int *pDifferentRow)
if( pCur->eState!=CURSOR_VALID ){
*pDifferentRow = 1;
}else{
- assert( pCur->skipNext==0 );
*pDifferentRow = 0;
}
return SQLITE_OK;
@@ -63647,6 +64403,13 @@ static void ptrmapPut(BtShared *pBt, Pgno key, u8 eType, Pgno parent, int *pRC){
*pRC = rc;
return;
}
+ if( ((char*)sqlite3PagerGetExtra(pDbPage))[0]!=0 ){
+ /* The first byte of the extra data is the MemPage.isInit byte.
+ ** If that byte is set, it means this page is also being used
+ ** as a btree page. */
+ *pRC = SQLITE_CORRUPT_BKPT;
+ goto ptrmap_exit;
+ }
offset = PTRMAP_PTROFFSET(iPtrmap, key);
if( offset<0 ){
*pRC = SQLITE_CORRUPT_BKPT;
@@ -63709,7 +64472,7 @@ static int ptrmapGet(BtShared *pBt, Pgno key, u8 *pEType, Pgno *pPgno){
#else /* if defined SQLITE_OMIT_AUTOVACUUM */
#define ptrmapPut(w,x,y,z,rc)
#define ptrmapGet(w,x,y,z) SQLITE_OK
- #define ptrmapPutOvflPtr(x, y, rc)
+ #define ptrmapPutOvflPtr(x, y, z, rc)
#endif
/*
@@ -64002,17 +64765,24 @@ static u16 cellSize(MemPage *pPage, int iCell){
#ifndef SQLITE_OMIT_AUTOVACUUM
/*
-** If the cell pCell, part of page pPage contains a pointer
-** to an overflow page, insert an entry into the pointer-map
-** for the overflow page.
+** The cell pCell is currently part of page pSrc but will ultimately be part
+** of pPage. (pSrc and pPager are often the same.) If pCell contains a
+** pointer to an overflow page, insert an entry into the pointer-map for
+** the overflow page that will be valid after pCell has been moved to pPage.
*/
-static void ptrmapPutOvflPtr(MemPage *pPage, u8 *pCell, int *pRC){
+static void ptrmapPutOvflPtr(MemPage *pPage, MemPage *pSrc, u8 *pCell,int *pRC){
CellInfo info;
if( *pRC ) return;
assert( pCell!=0 );
pPage->xParseCell(pPage, pCell, &info);
if( info.nLocalaDataEnd, pCell, pCell+info.nLocal) ){
+ testcase( pSrc!=pPage );
+ *pRC = SQLITE_CORRUPT_BKPT;
+ return;
+ }
+ ovfl = get4byte(&pCell[info.nSize-4]);
ptrmapPut(pPage->pBt, ovfl, PTRMAP_OVERFLOW1, pPage->pgno, pRC);
}
}
@@ -64056,7 +64826,7 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
hdr = pPage->hdrOffset;
cellOffset = pPage->cellOffset;
nCell = pPage->nCell;
- assert( nCell==get2byte(&data[hdr+3]) );
+ assert( nCell==get2byte(&data[hdr+3]) || CORRUPT_DB );
iCellFirst = cellOffset + 2*nCell;
usableSize = pPage->pBt->usableSize;
@@ -64067,19 +64837,10 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
** reconstruct the entire page. */
if( (int)data[hdr+7]<=nMaxFrag ){
int iFree = get2byte(&data[hdr+1]);
+ if( iFree>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
if( iFree ){
int iFree2 = get2byte(&data[iFree]);
-
- /* pageFindSlot() has already verified that free blocks are sorted
- ** in order of offset within the page, and that no block extends
- ** past the end of the page. Provided the two free slots do not
- ** overlap, this guarantees that the memmove() calls below will not
- ** overwrite the usableSize byte buffer, even if the database page
- ** is corrupt. */
- assert( iFree2==0 || iFree2>iFree );
- assert( iFree+get2byte(&data[iFree+2]) <= usableSize );
- assert( iFree2==0 || iFree2+get2byte(&data[iFree2+2]) <= usableSize );
-
+ if( iFree2>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
if( 0==iFree2 || (data[iFree2]==0 && data[iFree2+1]==0) ){
u8 *pEnd = &data[cellOffset + nCell*2];
u8 *pAddr;
@@ -64090,12 +64851,15 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
return SQLITE_CORRUPT_PAGE(pPage);
}
if( iFree2 ){
- assert( iFree+sz<=iFree2 ); /* Verified by pageFindSlot() */
+ if( iFree+sz>iFree2 ) return SQLITE_CORRUPT_PAGE(pPage);
sz2 = get2byte(&data[iFree2+2]);
- assert( iFree+sz+sz2+iFree2-(iFree+sz) <= usableSize );
+ if( iFree2+sz2 > usableSize ) return SQLITE_CORRUPT_PAGE(pPage);
memmove(&data[iFree+sz+sz2], &data[iFree+sz], iFree2-(iFree+sz));
sz += sz2;
+ }else if( iFree+sz>usableSize ){
+ return SQLITE_CORRUPT_PAGE(pPage);
}
+
cbrk = top+sz;
assert( cbrk+(iFree-top) <= usableSize );
memmove(&data[cbrk], &data[top], iFree-top);
@@ -64146,6 +64910,7 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
data[hdr+7] = 0;
defragment_out:
+ assert( pPage->nFree>=0 );
if( data[hdr+7]+cbrk-iCellFirst!=pPage->nFree ){
return SQLITE_CORRUPT_PAGE(pPage);
}
@@ -64173,16 +64938,16 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
** causes the fragmentation count to exceed 60.
*/
static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){
- const int hdr = pPg->hdrOffset;
- u8 * const aData = pPg->aData;
- int iAddr = hdr + 1;
- int pc = get2byte(&aData[iAddr]);
- int x;
- int usableSize = pPg->pBt->usableSize;
- int size; /* Size of the free slot */
+ const int hdr = pPg->hdrOffset; /* Offset to page header */
+ u8 * const aData = pPg->aData; /* Page data */
+ int iAddr = hdr + 1; /* Address of ptr to pc */
+ int pc = get2byte(&aData[iAddr]); /* Address of a free slot */
+ int x; /* Excess size of the slot */
+ int maxPC = pPg->pBt->usableSize - nByte; /* Max address for a usable slot */
+ int size; /* Size of the free slot */
assert( pc>0 );
- while( pc<=usableSize-4 ){
+ while( pc<=maxPC ){
/* EVIDENCE-OF: R-22710-53328 The third and fourth bytes of each
** freeblock form a big-endian integer which is the size of the freeblock
** in bytes, including the 4-byte header. */
@@ -64190,10 +64955,7 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){
if( (x = size - nByte)>=0 ){
testcase( x==4 );
testcase( x==3 );
- if( size+pc > usableSize ){
- *pRc = SQLITE_CORRUPT_PAGE(pPg);
- return 0;
- }else if( x<4 ){
+ if( x<4 ){
/* EVIDENCE-OF: R-11498-58022 In a well-formed b-tree page, the total
** number of bytes in fragments may not exceed 60. */
if( aData[hdr+7]>57 ) return 0;
@@ -64202,21 +64964,31 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){
** fragmented bytes within the page. */
memcpy(&aData[iAddr], &aData[pc], 2);
aData[hdr+7] += (u8)x;
+ }else if( x+pc > maxPC ){
+ /* This slot extends off the end of the usable part of the page */
+ *pRc = SQLITE_CORRUPT_PAGE(pPg);
+ return 0;
}else{
/* The slot remains on the free-list. Reduce its size to account
- ** for the portion used by the new allocation. */
+ ** for the portion used by the new allocation. */
put2byte(&aData[pc+2], x);
}
return &aData[pc + x];
}
iAddr = pc;
pc = get2byte(&aData[pc]);
- if( pcmaxPC+nByte-4 ){
+ /* The free slot chain extends off the end of the page */
*pRc = SQLITE_CORRUPT_PAGE(pPg);
}
-
return 0;
}
@@ -64257,7 +65029,7 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
** However, that integer is too large to be stored in a 2-byte unsigned
** integer, so a value of 0 is used in its place. */
top = get2byte(&data[hdr+5]);
- assert( top<=(int)pPage->pBt->usableSize ); /* Prevent by getAndInitPage() */
+ assert( top<=(int)pPage->pBt->usableSize ); /* by btreeComputeFreeSpace() */
if( gap>top ){
if( top==0 && pPage->pBt->usableSize==65536 ){
top = 65536;
@@ -64266,9 +65038,9 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
}
}
- /* If there is enough space between gap and top for one more cell pointer
- ** array entry offset, and if the freelist is not empty, then search the
- ** freelist looking for a free slot big enough to satisfy the request.
+ /* If there is enough space between gap and top for one more cell pointer,
+ ** and if the freelist is not empty, then search the
+ ** freelist looking for a slot big enough to satisfy the request.
*/
testcase( gap+2==top );
testcase( gap+1==top );
@@ -64276,9 +65048,12 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
if( (data[hdr+2] || data[hdr+1]) && gap+2<=top ){
u8 *pSpace = pageFindSlot(pPage, nByte, &rc);
if( pSpace ){
- assert( pSpace>=data && (pSpace - data)<65536 );
- *pIdx = (int)(pSpace - data);
- return SQLITE_OK;
+ assert( pSpace+nByte<=data+pPage->pBt->usableSize );
+ if( (*pIdx = (int)(pSpace-data))<=gap ){
+ return SQLITE_CORRUPT_PAGE(pPage);
+ }else{
+ return SQLITE_OK;
+ }
}else if( rc ){
return rc;
}
@@ -64290,6 +65065,7 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
testcase( gap+2+nByte==top );
if( gap+2+nByte>top ){
assert( pPage->nCell>0 || CORRUPT_DB );
+ assert( pPage->nFree>=0 );
rc = defragmentPage(pPage, MIN(4, pPage->nFree - (2+nByte)));
if( rc ) return rc;
top = get2byteNotZero(&data[hdr+5]);
@@ -64298,7 +65074,7 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
/* Allocate memory from the gap in between the cell pointer array
- ** and the cell content area. The btreeInitPage() call has already
+ ** and the cell content area. The btreeComputeFreeSpace() call has already
** validated the freelist. Given that the freelist is valid, there
** is no way that the allocation can extend off the end of the page.
** The assert() below verifies the previous sentence.
@@ -64317,7 +65093,7 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
**
** Adjacent freeblocks are coalesced.
**
-** Note that even though the freeblock list was checked by btreeInitPage(),
+** Even though the freeblock list was checked by btreeComputeFreeSpace(),
** that routine will not detect overlap between cells or freeblocks. Nor
** does it detect cells or freeblocks that encrouch into the reserved bytes
** at the end of the page. So do additional corruption checks inside this
@@ -64479,21 +65255,14 @@ static int decodeFlags(MemPage *pPage, int flagByte){
}
/*
-** Initialize the auxiliary information for a disk block.
-**
-** Return SQLITE_OK on success. If we see that the page does
-** not contain a well-formed database page, then return
-** SQLITE_CORRUPT. Note that a return of SQLITE_OK does not
-** guarantee that the page is well-formed. It only shows that
-** we failed to detect any corruption.
+** Compute the amount of freespace on the page. In other words, fill
+** in the pPage->nFree field.
*/
-static int btreeInitPage(MemPage *pPage){
+static int btreeComputeFreeSpace(MemPage *pPage){
int pc; /* Address of a freeblock within pPage->aData[] */
u8 hdr; /* Offset to beginning of page header */
u8 *data; /* Equal to pPage->aData */
- BtShared *pBt; /* The main btree structure */
int usableSize; /* Amount of usable space on each page */
- u16 cellOffset; /* Offset from start of page to first cell pointer */
int nFree; /* Number of unused bytes on the page */
int top; /* First byte of the cell content area */
int iCellFirst; /* First allowable cell or freeblock offset */
@@ -64505,71 +65274,18 @@ static int btreeInitPage(MemPage *pPage){
assert( pPage->pgno==sqlite3PagerPagenumber(pPage->pDbPage) );
assert( pPage == sqlite3PagerGetExtra(pPage->pDbPage) );
assert( pPage->aData == sqlite3PagerGetData(pPage->pDbPage) );
- assert( pPage->isInit==0 );
+ assert( pPage->isInit==1 );
+ assert( pPage->nFree<0 );
- pBt = pPage->pBt;
+ usableSize = pPage->pBt->usableSize;
hdr = pPage->hdrOffset;
data = pPage->aData;
- /* EVIDENCE-OF: R-28594-02890 The one-byte flag at offset 0 indicating
- ** the b-tree page type. */
- if( decodeFlags(pPage, data[hdr]) ){
- return SQLITE_CORRUPT_PAGE(pPage);
- }
- assert( pBt->pageSize>=512 && pBt->pageSize<=65536 );
- pPage->maskPage = (u16)(pBt->pageSize - 1);
- pPage->nOverflow = 0;
- usableSize = pBt->usableSize;
- pPage->cellOffset = cellOffset = hdr + 8 + pPage->childPtrSize;
- pPage->aDataEnd = &data[usableSize];
- pPage->aCellIdx = &data[cellOffset];
- pPage->aDataOfst = &data[pPage->childPtrSize];
/* EVIDENCE-OF: R-58015-48175 The two-byte integer at offset 5 designates
** the start of the cell content area. A zero value for this integer is
** interpreted as 65536. */
top = get2byteNotZero(&data[hdr+5]);
- /* EVIDENCE-OF: R-37002-32774 The two-byte integer at offset 3 gives the
- ** number of cells on the page. */
- pPage->nCell = get2byte(&data[hdr+3]);
- if( pPage->nCell>MX_CELL(pBt) ){
- /* To many cells for a single page. The page must be corrupt */
- return SQLITE_CORRUPT_PAGE(pPage);
- }
- testcase( pPage->nCell==MX_CELL(pBt) );
- /* EVIDENCE-OF: R-24089-57979 If a page contains no cells (which is only
- ** possible for a root page of a table that contains no rows) then the
- ** offset to the cell content area will equal the page size minus the
- ** bytes of reserved space. */
- assert( pPage->nCell>0 || top==usableSize || CORRUPT_DB );
-
- /* A malformed database page might cause us to read past the end
- ** of page when parsing a cell.
- **
- ** The following block of code checks early to see if a cell extends
- ** past the end of a page boundary and causes SQLITE_CORRUPT to be
- ** returned if it does.
- */
- iCellFirst = cellOffset + 2*pPage->nCell;
+ iCellFirst = hdr + 8 + pPage->childPtrSize + 2*pPage->nCell;
iCellLast = usableSize - 4;
- if( pBt->db->flags & SQLITE_CellSizeCk ){
- int i; /* Index into the cell pointer array */
- int sz; /* Size of a cell */
-
- if( !pPage->leaf ) iCellLast--;
- for(i=0; inCell; i++){
- pc = get2byteAligned(&data[cellOffset+i*2]);
- testcase( pc==iCellFirst );
- testcase( pc==iCellLast );
- if( pciCellLast ){
- return SQLITE_CORRUPT_PAGE(pPage);
- }
- sz = pPage->xCellSize(pPage, &data[pc]);
- testcase( pc+sz==usableSize );
- if( pc+sz>usableSize ){
- return SQLITE_CORRUPT_PAGE(pPage);
- }
- }
- if( !pPage->leaf ) iCellLast++;
- }
/* Compute the total free space on the page
** EVIDENCE-OF: R-23588-34450 The two-byte integer at offset 1 gives the
@@ -64613,11 +65329,104 @@ static int btreeInitPage(MemPage *pPage){
** serves to verify that the offset to the start of the cell-content
** area, according to the page header, lies within the page.
*/
- if( nFree>usableSize ){
+ if( nFree>usableSize || nFreenFree = (u16)(nFree - iCellFirst);
+ return SQLITE_OK;
+}
+
+/*
+** Do additional sanity check after btreeInitPage() if
+** PRAGMA cell_size_check=ON
+*/
+static SQLITE_NOINLINE int btreeCellSizeCheck(MemPage *pPage){
+ int iCellFirst; /* First allowable cell or freeblock offset */
+ int iCellLast; /* Last possible cell or freeblock offset */
+ int i; /* Index into the cell pointer array */
+ int sz; /* Size of a cell */
+ int pc; /* Address of a freeblock within pPage->aData[] */
+ u8 *data; /* Equal to pPage->aData */
+ int usableSize; /* Maximum usable space on the page */
+ int cellOffset; /* Start of cell content area */
+
+ iCellFirst = pPage->cellOffset + 2*pPage->nCell;
+ usableSize = pPage->pBt->usableSize;
+ iCellLast = usableSize - 4;
+ data = pPage->aData;
+ cellOffset = pPage->cellOffset;
+ if( !pPage->leaf ) iCellLast--;
+ for(i=0; inCell; i++){
+ pc = get2byteAligned(&data[cellOffset+i*2]);
+ testcase( pc==iCellFirst );
+ testcase( pc==iCellLast );
+ if( pciCellLast ){
+ return SQLITE_CORRUPT_PAGE(pPage);
+ }
+ sz = pPage->xCellSize(pPage, &data[pc]);
+ testcase( pc+sz==usableSize );
+ if( pc+sz>usableSize ){
+ return SQLITE_CORRUPT_PAGE(pPage);
+ }
+ }
+ return SQLITE_OK;
+}
+
+/*
+** Initialize the auxiliary information for a disk block.
+**
+** Return SQLITE_OK on success. If we see that the page does
+** not contain a well-formed database page, then return
+** SQLITE_CORRUPT. Note that a return of SQLITE_OK does not
+** guarantee that the page is well-formed. It only shows that
+** we failed to detect any corruption.
+*/
+static int btreeInitPage(MemPage *pPage){
+ u8 *data; /* Equal to pPage->aData */
+ BtShared *pBt; /* The main btree structure */
+
+ assert( pPage->pBt!=0 );
+ assert( pPage->pBt->db!=0 );
+ assert( sqlite3_mutex_held(pPage->pBt->mutex) );
+ assert( pPage->pgno==sqlite3PagerPagenumber(pPage->pDbPage) );
+ assert( pPage == sqlite3PagerGetExtra(pPage->pDbPage) );
+ assert( pPage->aData == sqlite3PagerGetData(pPage->pDbPage) );
+ assert( pPage->isInit==0 );
+
+ pBt = pPage->pBt;
+ data = pPage->aData + pPage->hdrOffset;
+ /* EVIDENCE-OF: R-28594-02890 The one-byte flag at offset 0 indicating
+ ** the b-tree page type. */
+ if( decodeFlags(pPage, data[0]) ){
+ return SQLITE_CORRUPT_PAGE(pPage);
+ }
+ assert( pBt->pageSize>=512 && pBt->pageSize<=65536 );
+ pPage->maskPage = (u16)(pBt->pageSize - 1);
+ pPage->nOverflow = 0;
+ pPage->cellOffset = pPage->hdrOffset + 8 + pPage->childPtrSize;
+ pPage->aCellIdx = data + pPage->childPtrSize + 8;
+ pPage->aDataEnd = pPage->aData + pBt->usableSize;
+ pPage->aDataOfst = pPage->aData + pPage->childPtrSize;
+ /* EVIDENCE-OF: R-37002-32774 The two-byte integer at offset 3 gives the
+ ** number of cells on the page. */
+ pPage->nCell = get2byte(&data[3]);
+ if( pPage->nCell>MX_CELL(pBt) ){
+ /* To many cells for a single page. The page must be corrupt */
+ return SQLITE_CORRUPT_PAGE(pPage);
+ }
+ testcase( pPage->nCell==MX_CELL(pBt) );
+ /* EVIDENCE-OF: R-24089-57979 If a page contains no cells (which is only
+ ** possible for a root page of a table that contains no rows) then the
+ ** offset to the cell content area will equal the page size minus the
+ ** bytes of reserved space. */
+ assert( pPage->nCell>0
+ || get2byteNotZero(&data[5])==(int)pBt->usableSize
+ || CORRUPT_DB );
+ pPage->nFree = -1; /* Indicate that this value is yet uncomputed */
pPage->isInit = 1;
+ if( pBt->db->flags & SQLITE_CellSizeCk ){
+ return btreeCellSizeCheck(pPage);
+ }
return SQLITE_OK;
}
@@ -64760,19 +65569,18 @@ static int getAndInitPage(
if( pgno>btreePagecount(pBt) ){
rc = SQLITE_CORRUPT_BKPT;
- goto getAndInitPage_error;
+ goto getAndInitPage_error1;
}
rc = sqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, bReadOnly);
if( rc ){
- goto getAndInitPage_error;
+ goto getAndInitPage_error1;
}
*ppPage = (MemPage*)sqlite3PagerGetExtra(pDbPage);
if( (*ppPage)->isInit==0 ){
btreePageFromDbPage(pDbPage, pgno, pBt);
rc = btreeInitPage(*ppPage);
if( rc!=SQLITE_OK ){
- releasePage(*ppPage);
- goto getAndInitPage_error;
+ goto getAndInitPage_error2;
}
}
assert( (*ppPage)->pgno==pgno );
@@ -64782,12 +65590,13 @@ static int getAndInitPage(
** compatible with the root page. */
if( pCur && ((*ppPage)->nCell<1 || (*ppPage)->intKey!=pCur->curIntKey) ){
rc = SQLITE_CORRUPT_PGNO(pgno);
- releasePage(*ppPage);
- goto getAndInitPage_error;
+ goto getAndInitPage_error2;
}
return SQLITE_OK;
-getAndInitPage_error:
+getAndInitPage_error2:
+ releasePage(*ppPage);
+getAndInitPage_error1:
if( pCur ){
pCur->iPage--;
pCur->pPage = pCur->apPage[pCur->iPage];
@@ -65647,9 +66456,9 @@ static int newDatabase(BtShared*);
static int lockBtree(BtShared *pBt){
int rc; /* Result code from subfunctions */
MemPage *pPage1; /* Page 1 of the database file */
- int nPage; /* Number of pages in the database */
- int nPageFile = 0; /* Number of pages in the database file */
- int nPageHeader; /* Number of pages in the database according to hdr */
+ u32 nPage; /* Number of pages in the database */
+ u32 nPageFile = 0; /* Number of pages in the database file */
+ u32 nPageHeader; /* Number of pages in the database according to hdr */
assert( sqlite3_mutex_held(pBt->mutex) );
assert( pBt->pPage1==0 );
@@ -65662,7 +66471,7 @@ static int lockBtree(BtShared *pBt){
** a valid database file.
*/
nPage = nPageHeader = get4byte(28+(u8*)pPage1->aData);
- sqlite3PagerPagecount(pBt->pPager, &nPageFile);
+ sqlite3PagerPagecount(pBt->pPager, (int*)&nPageFile);
if( nPage==0 || memcmp(24+(u8*)pPage1->aData, 92+(u8*)pPage1->aData,4)!=0 ){
nPage = nPageFile;
}
@@ -65743,6 +66552,7 @@ static int lockBtree(BtShared *pBt){
){
goto page1_init_failed;
}
+ pBt->btsFlags |= BTS_PAGESIZE_FIXED;
assert( (pageSize & 7)==0 );
/* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte
** integer at offset 20 is the number of bytes of space at the end of
@@ -65767,7 +66577,7 @@ static int lockBtree(BtShared *pBt){
pageSize-usableSize);
return rc;
}
- if( (pBt->db->flags & SQLITE_WriteSchema)==0 && nPage>nPageFile ){
+ if( sqlite3WritableSchema(pBt->db)==0 && nPage>nPageFile ){
rc = SQLITE_CORRUPT_BKPT;
goto page1_init_failed;
}
@@ -66133,7 +66943,7 @@ static int setChildPtrmaps(MemPage *pPage){
for(i=0; ileaf ){
Pgno childPgno = get4byte(pCell);
@@ -66241,6 +67051,7 @@ static int relocatePage(
eType==PTRMAP_BTREE || eType==PTRMAP_ROOTPAGE );
assert( sqlite3_mutex_held(pBt->mutex) );
assert( pDbPage->pBt==pBt );
+ if( iDbPage<3 ) return SQLITE_CORRUPT_BKPT;
/* Move page iDbPage from its current location to page number iFreePage */
TRACE(("AUTOVACUUM: Moving %d to free page %d (ptr page %d type %d)\n",
@@ -66746,6 +67557,18 @@ SQLITE_PRIVATE int sqlite3BtreeTripAllCursors(Btree *pBtree, int errCode, int wr
return rc;
}
+/*
+** Set the pBt->nPage field correctly, according to the current
+** state of the database. Assume pBt->pPage1 is valid.
+*/
+static void btreeSetNPage(BtShared *pBt, MemPage *pPage1){
+ int nPage = get4byte(&pPage1->aData[28]);
+ testcase( nPage==0 );
+ if( nPage==0 ) sqlite3PagerPagecount(pBt->pPager, &nPage);
+ testcase( pBt->nPage!=nPage );
+ pBt->nPage = nPage;
+}
+
/*
** Rollback the transaction in progress.
**
@@ -66791,11 +67614,7 @@ SQLITE_PRIVATE int sqlite3BtreeRollback(Btree *p, int tripCode, int writeOnly){
** call btreeGetPage() on page 1 again to make
** sure pPage1->aData is set correctly. */
if( btreeGetPage(pBt, 1, &pPage1, 0)==SQLITE_OK ){
- int nPage = get4byte(28+(u8*)pPage1->aData);
- testcase( nPage==0 );
- if( nPage==0 ) sqlite3PagerPagecount(pBt->pPager, &nPage);
- testcase( pBt->nPage!=nPage );
- pBt->nPage = nPage;
+ btreeSetNPage(pBt, pPage1);
releasePageOne(pPage1);
}
assert( countValidCursors(pBt, 1)==0 );
@@ -66875,12 +67694,11 @@ SQLITE_PRIVATE int sqlite3BtreeSavepoint(Btree *p, int op, int iSavepoint){
pBt->nPage = 0;
}
rc = newDatabase(pBt);
- pBt->nPage = get4byte(28 + pBt->pPage1->aData);
+ btreeSetNPage(pBt, pBt->pPage1);
- /* The database size was written into the offset 28 of the header
- ** when the transaction started, so we know that the value at offset
- ** 28 is nonzero. */
- assert( pBt->nPage>0 );
+ /* pBt->nPage might be zero if the database was corrupt when
+ ** the transaction was started. Otherwise, it must be at least 1. */
+ assert( CORRUPT_DB || pBt->nPage>0 );
}
sqlite3BtreeLeave(p);
}
@@ -67058,6 +67876,7 @@ SQLITE_PRIVATE int sqlite3BtreeCloseCursor(BtCursor *pCur){
sqlite3_free(pCur->aOverflow);
sqlite3_free(pCur->pKey);
sqlite3BtreeLeave(pBtree);
+ pCur->pBtree = 0;
}
return SQLITE_OK;
}
@@ -67156,6 +67975,25 @@ SQLITE_PRIVATE u32 sqlite3BtreePayloadSize(BtCursor *pCur){
return pCur->info.nPayload;
}
+/*
+** Return an upper bound on the size of any record for the table
+** that the cursor is pointing into.
+**
+** This is an optimization. Everything will still work if this
+** routine always returns 2147483647 (which is the largest record
+** that SQLite can handle) or more. But returning a smaller value might
+** prevent large memory allocations when trying to interpret a
+** corrupt datrabase.
+**
+** The current implementation merely returns the size of the underlying
+** database file.
+*/
+SQLITE_PRIVATE sqlite3_int64 sqlite3BtreeMaxRecordSize(BtCursor *pCur){
+ assert( cursorHoldsMutex(pCur) );
+ assert( pCur->eState==CURSOR_VALID );
+ return pCur->pBt->pageSize * (sqlite3_int64)pCur->pBt->nPage;
+}
+
/*
** Given the page number of an overflow page in the database (parameter
** ovfl), this function finds the page number of the next page in the
@@ -67412,9 +68250,6 @@ static int accessPayload(
/* Need to read this page properly. It contains some of the
** range of data that is being read (eOp==0) or written (eOp!=0).
*/
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
- sqlite3_file *fd; /* File from which to do direct overflow read */
-#endif
int a = amt;
if( a + offset > ovflSize ){
a = ovflSize - offset;
@@ -67425,7 +68260,7 @@ static int accessPayload(
**
** 1) this is a read operation, and
** 2) data is required from the start of this overflow page, and
- ** 3) there is no open write-transaction, and
+ ** 3) there are no dirty pages in the page-cache
** 4) the database is file-backed, and
** 5) the page is not in the WAL file
** 6) at least 4 bytes have already been read into the output buffer
@@ -67436,16 +68271,16 @@ static int accessPayload(
*/
if( eOp==0 /* (1) */
&& offset==0 /* (2) */
- && pBt->inTransaction==TRANS_READ /* (3) */
- && (fd = sqlite3PagerFile(pBt->pPager))->pMethods /* (4) */
- && 0==sqlite3PagerUseWal(pBt->pPager, nextPage) /* (5) */
+ && sqlite3PagerDirectReadOk(pBt->pPager, nextPage) /* (3,4,5) */
&& &pBuf[-4]>=pBufStart /* (6) */
){
+ sqlite3_file *fd = sqlite3PagerFile(pBt->pPager);
u8 aSave[4];
u8 *aWrite = &pBuf[-4];
assert( aWrite>=pBufStart ); /* due to (6) */
memcpy(aSave, aWrite, 4);
rc = sqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1));
+ if( rc && nextPage>pBt->nPage ) rc = SQLITE_CORRUPT_BKPT;
nextPage = get4byte(aWrite);
memcpy(aWrite, aSave, 4);
}else
@@ -67850,23 +68685,6 @@ SQLITE_PRIVATE int sqlite3BtreeFirst(BtCursor *pCur, int *pRes){
return rc;
}
-/*
-** This function is a no-op if cursor pCur does not point to a valid row.
-** Otherwise, if pCur is valid, configure it so that the next call to
-** sqlite3BtreeNext() is a no-op.
-*/
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE void sqlite3BtreeSkipNext(BtCursor *pCur){
- /* We believe that the cursor must always be in the valid state when
- ** this routine is called, but the proof is difficult, so we add an
- ** ALWaYS() test just in case we are wrong. */
- if( ALWAYS(pCur->eState==CURSOR_VALID) ){
- pCur->eState = CURSOR_SKIPNEXT;
- pCur->skipNext = 1;
- }
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
/* Move the cursor to the last entry in the table. Return SQLITE_OK
** on success. Set *pRes to 0 if the cursor actually points to something
** or set *pRes to 1 if the table is empty.
@@ -67889,6 +68707,7 @@ SQLITE_PRIVATE int sqlite3BtreeLast(BtCursor *pCur, int *pRes){
assert( pCur->ix==pCur->pPage->nCell-1 );
assert( pCur->pPage->leaf );
#endif
+ *pRes = 0;
return SQLITE_OK;
}
@@ -67974,7 +68793,7 @@ SQLITE_PRIVATE int sqlite3BtreeMovetoUnpacked(
** try to get there using sqlite3BtreeNext() rather than a full
** binary search. This is an optimization only. The correct answer
** is still obtained without this case, only a little more slowely */
- if( pCur->info.nKey+1==intKey && !pCur->skipNext ){
+ if( pCur->info.nKey+1==intKey ){
*pRes = 0;
rc = sqlite3BtreeNext(pCur, 0);
if( rc==SQLITE_OK ){
@@ -68110,29 +68929,31 @@ SQLITE_PRIVATE int sqlite3BtreeMovetoUnpacked(
** case this happens. */
void *pCellKey;
u8 * const pCellBody = pCell - pPage->childPtrSize;
+ const int nOverrun = 18; /* Size of the overrun padding */
pPage->xParseCell(pPage, pCellBody, &pCur->info);
nCell = (int)pCur->info.nKey;
testcase( nCell<0 ); /* True if key size is 2^32 or more */
testcase( nCell==0 ); /* Invalid key size: 0x80 0x80 0x00 */
testcase( nCell==1 ); /* Invalid key size: 0x80 0x80 0x01 */
testcase( nCell==2 ); /* Minimum legal index key size */
- if( nCell<2 ){
+ if( nCell<2 || nCell/pCur->pBt->usableSize>pCur->pBt->nPage ){
rc = SQLITE_CORRUPT_PAGE(pPage);
goto moveto_finish;
}
- pCellKey = sqlite3Malloc( nCell+18 );
+ pCellKey = sqlite3Malloc( nCell+nOverrun );
if( pCellKey==0 ){
rc = SQLITE_NOMEM_BKPT;
goto moveto_finish;
}
pCur->ix = (u16)idx;
rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
+ memset(((u8*)pCellKey)+nCell,0,nOverrun); /* Fix uninit warnings */
pCur->curFlags &= ~BTCF_ValidOvfl;
if( rc ){
sqlite3_free(pCellKey);
goto moveto_finish;
}
- c = xRecordCompare(nCell, pCellKey, pIdxKey);
+ c = sqlite3VdbeRecordCompare(nCell, pCellKey, pIdxKey);
sqlite3_free(pCellKey);
}
assert(
@@ -68248,7 +69069,6 @@ static SQLITE_NOINLINE int btreeNext(BtCursor *pCur){
MemPage *pPage;
assert( cursorOwnsBtShared(pCur) );
- assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
if( pCur->eState!=CURSOR_VALID ){
assert( (pCur->curFlags & BTCF_ValidOvfl)==0 );
rc = restoreCursorPosition(pCur);
@@ -68258,14 +69078,9 @@ static SQLITE_NOINLINE int btreeNext(BtCursor *pCur){
if( CURSOR_INVALID==pCur->eState ){
return SQLITE_DONE;
}
- if( pCur->skipNext ){
- assert( pCur->eState==CURSOR_VALID || pCur->eState==CURSOR_SKIPNEXT );
+ if( pCur->eState==CURSOR_SKIPNEXT ){
pCur->eState = CURSOR_VALID;
- if( pCur->skipNext>0 ){
- pCur->skipNext = 0;
- return SQLITE_OK;
- }
- pCur->skipNext = 0;
+ if( pCur->skipNext>0 ) return SQLITE_OK;
}
}
@@ -68320,7 +69135,6 @@ SQLITE_PRIVATE int sqlite3BtreeNext(BtCursor *pCur, int flags){
UNUSED_PARAMETER( flags ); /* Used in COMDB2 but not native SQLite */
assert( cursorOwnsBtShared(pCur) );
assert( flags==0 || flags==1 );
- assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
pCur->info.nSize = 0;
pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl);
if( pCur->eState!=CURSOR_VALID ) return btreeNext(pCur);
@@ -68361,7 +69175,6 @@ static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){
MemPage *pPage;
assert( cursorOwnsBtShared(pCur) );
- assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
assert( (pCur->curFlags & (BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey))==0 );
assert( pCur->info.nSize==0 );
if( pCur->eState!=CURSOR_VALID ){
@@ -68372,14 +69185,9 @@ static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){
if( CURSOR_INVALID==pCur->eState ){
return SQLITE_DONE;
}
- if( pCur->skipNext ){
- assert( pCur->eState==CURSOR_VALID || pCur->eState==CURSOR_SKIPNEXT );
+ if( CURSOR_SKIPNEXT==pCur->eState ){
pCur->eState = CURSOR_VALID;
- if( pCur->skipNext<0 ){
- pCur->skipNext = 0;
- return SQLITE_OK;
- }
- pCur->skipNext = 0;
+ if( pCur->skipNext<0 ) return SQLITE_OK;
}
}
@@ -68414,7 +69222,6 @@ static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){
SQLITE_PRIVATE int sqlite3BtreePrevious(BtCursor *pCur, int flags){
assert( cursorOwnsBtShared(pCur) );
assert( flags==0 || flags==1 );
- assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
UNUSED_PARAMETER( flags ); /* Used in COMDB2 but not native SQLite */
pCur->curFlags &= ~(BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey);
pCur->info.nSize = 0;
@@ -68750,7 +69557,7 @@ static int allocateBtreePage(
TRACE(("ALLOCATE: %d from end of file\n", *pPgno));
}
- assert( *pPgno!=PENDING_BYTE_PAGE(pBt) );
+ assert( CORRUPT_DB || *pPgno!=PENDING_BYTE_PAGE(pBt) );
end_allocate_page:
releasePage(pTrunk);
@@ -68778,13 +69585,15 @@ static int freePage2(BtShared *pBt, MemPage *pMemPage, Pgno iPage){
MemPage *pPage1 = pBt->pPage1; /* Local reference to page 1 */
MemPage *pPage; /* Page being freed. May be NULL. */
int rc; /* Return Code */
- int nFree; /* Initial number of pages on free-list */
+ u32 nFree; /* Initial number of pages on free-list */
assert( sqlite3_mutex_held(pBt->mutex) );
assert( CORRUPT_DB || iPage>1 );
assert( !pMemPage || pMemPage->pgno==iPage );
- if( iPage<2 ) return SQLITE_CORRUPT_BKPT;
+ if( iPage<2 || iPage>pBt->nPage ){
+ return SQLITE_CORRUPT_BKPT;
+ }
if( pMemPage ){
pPage = pMemPage;
sqlite3PagerRef(pPage->pDbPage);
@@ -69195,6 +70004,7 @@ static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){
assert( CORRUPT_DB || sz==cellSize(pPage, idx) );
assert( sqlite3PagerIswriteable(pPage->pDbPage) );
assert( sqlite3_mutex_held(pPage->pBt->mutex) );
+ assert( pPage->nFree>=0 );
data = pPage->aData;
ptr = &pPage->aCellIdx[2*idx];
pc = get2byte(ptr);
@@ -69259,12 +70069,8 @@ static void insertCell(
assert( pPage->nOverflow<=ArraySize(pPage->apOvfl) );
assert( ArraySize(pPage->apOvfl)==ArraySize(pPage->aiOvfl) );
assert( sqlite3_mutex_held(pPage->pBt->mutex) );
- /* The cell should normally be sized correctly. However, when moving a
- ** malformed cell from a leaf page to an interior page, if the cell size
- ** wanted to be less than 4 but got rounded up to 4 on the leaf, then size
- ** might be less than 8 (leaf-size + pointer) on the interior node. Hence
- ** the term after the || in the following assert(). */
- assert( sz==pPage->xCellSize(pPage, pCell) || (sz==8 && iChild>0) );
+ assert( sz==pPage->xCellSize(pPage, pCell) || CORRUPT_DB );
+ assert( pPage->nFree>=0 );
if( pPage->nOverflow || sz+2>pPage->nFree ){
if( pTemp ){
memcpy(pTemp, pCell, sz);
@@ -69305,9 +70111,16 @@ static void insertCell(
assert( idx >= pPage->cellOffset+2*pPage->nCell+2 || CORRUPT_DB );
assert( idx+sz <= (int)pPage->pBt->usableSize );
pPage->nFree -= (u16)(2 + sz);
- memcpy(&data[idx], pCell, sz);
if( iChild ){
+ /* In a corrupt database where an entry in the cell index section of
+ ** a btree page has a value of 3 or less, the pCell value might point
+ ** as many as 4 bytes in front of the start of the aData buffer for
+ ** the source page. Make sure this does not cause problems by not
+ ** reading the first 4 bytes */
+ memcpy(&data[idx+4], pCell+4, sz-4);
put4byte(&data[idx], iChild);
+ }else{
+ memcpy(&data[idx], pCell, sz);
}
pIns = pPage->aCellIdx + i*2;
memmove(pIns+2, pIns, 2*(pPage->nCell - i));
@@ -69315,21 +70128,100 @@ static void insertCell(
pPage->nCell++;
/* increment the cell count */
if( (++data[pPage->hdrOffset+4])==0 ) data[pPage->hdrOffset+3]++;
- assert( get2byte(&data[pPage->hdrOffset+3])==pPage->nCell );
+ assert( get2byte(&data[pPage->hdrOffset+3])==pPage->nCell || CORRUPT_DB );
#ifndef SQLITE_OMIT_AUTOVACUUM
if( pPage->pBt->autoVacuum ){
/* The cell may contain a pointer to an overflow page. If so, write
** the entry for the overflow page into the pointer map.
*/
- ptrmapPutOvflPtr(pPage, pCell, pRC);
+ ptrmapPutOvflPtr(pPage, pPage, pCell, pRC);
}
#endif
}
}
+/*
+** The following parameters determine how many adjacent pages get involved
+** in a balancing operation. NN is the number of neighbors on either side
+** of the page that participate in the balancing operation. NB is the
+** total number of pages that participate, including the target page and
+** NN neighbors on either side.
+**
+** The minimum value of NN is 1 (of course). Increasing NN above 1
+** (to 2 or 3) gives a modest improvement in SELECT and DELETE performance
+** in exchange for a larger degradation in INSERT and UPDATE performance.
+** The value of NN appears to give the best results overall.
+**
+** (Later:) The description above makes it seem as if these values are
+** tunable - as if you could change them and recompile and it would all work.
+** But that is unlikely. NB has been 3 since the inception of SQLite and
+** we have never tested any other value.
+*/
+#define NN 1 /* Number of neighbors on either side of pPage */
+#define NB 3 /* (NN*2+1): Total pages involved in the balance */
+
/*
** A CellArray object contains a cache of pointers and sizes for a
** consecutive sequence of cells that might be held on multiple pages.
+**
+** The cells in this array are the divider cell or cells from the pParent
+** page plus up to three child pages. There are a total of nCell cells.
+**
+** pRef is a pointer to one of the pages that contributes cells. This is
+** used to access information such as MemPage.intKey and MemPage.pBt->pageSize
+** which should be common to all pages that contribute cells to this array.
+**
+** apCell[] and szCell[] hold, respectively, pointers to the start of each
+** cell and the size of each cell. Some of the apCell[] pointers might refer
+** to overflow cells. In other words, some apCel[] pointers might not point
+** to content area of the pages.
+**
+** A szCell[] of zero means the size of that cell has not yet been computed.
+**
+** The cells come from as many as four different pages:
+**
+** -----------
+** | Parent |
+** -----------
+** / | \
+** / | \
+** --------- --------- ---------
+** |Child-1| |Child-2| |Child-3|
+** --------- --------- ---------
+**
+** The order of cells is in the array is for an index btree is:
+**
+** 1. All cells from Child-1 in order
+** 2. The first divider cell from Parent
+** 3. All cells from Child-2 in order
+** 4. The second divider cell from Parent
+** 5. All cells from Child-3 in order
+**
+** For a table-btree (with rowids) the items 2 and 4 are empty because
+** content exists only in leaves and there are no divider cells.
+**
+** For an index btree, the apEnd[] array holds pointer to the end of page
+** for Child-1, the Parent, Child-2, the Parent (again), and Child-3,
+** respectively. The ixNx[] array holds the number of cells contained in
+** each of these 5 stages, and all stages to the left. Hence:
+**
+** ixNx[0] = Number of cells in Child-1.
+** ixNx[1] = Number of cells in Child-1 plus 1 for first divider.
+** ixNx[2] = Number of cells in Child-1 and Child-2 + 1 for 1st divider.
+** ixNx[3] = Number of cells in Child-1 and Child-2 + both divider cells
+** ixNx[4] = Total number of cells.
+**
+** For a table-btree, the concept is similar, except only apEnd[0]..apEnd[2]
+** are used and they point to the leaf pages only, and the ixNx value are:
+**
+** ixNx[0] = Number of cells in Child-1.
+** ixNx[1] = Number of cells in Child-1 and Child-2.
+** ixNx[2] = Total number of cells.
+**
+** Sometimes when deleting, a child page can have zero cells. In those
+** cases, ixNx[] entries with higher indexes, and the corresponding apEnd[]
+** entries, shift down. The end result is that each ixNx[] entry should
+** be larger than the previous
*/
typedef struct CellArray CellArray;
struct CellArray {
@@ -69337,6 +70229,8 @@ struct CellArray {
MemPage *pRef; /* Reference page */
u8 **apCell; /* All cells begin balanced */
u16 *szCell; /* Local size of all cells in apCell[] */
+ u8 *apEnd[NB*2]; /* MemPage.aDataEnd values */
+ int ixNx[NB*2]; /* Index of at which we move to the next apEnd[] */
};
/*
@@ -69387,36 +70281,59 @@ static u16 cachedCellSize(CellArray *p, int N){
** responsibility of the caller to set it correctly.
*/
static int rebuildPage(
- MemPage *pPg, /* Edit this page */
+ CellArray *pCArray, /* Content to be added to page pPg */
+ int iFirst, /* First cell in pCArray to use */
int nCell, /* Final number of cells on page */
- u8 **apCell, /* Array of cells */
- u16 *szCell /* Array of cell sizes */
+ MemPage *pPg /* The page to be reconstructed */
){
const int hdr = pPg->hdrOffset; /* Offset of header on pPg */
u8 * const aData = pPg->aData; /* Pointer to data for pPg */
const int usableSize = pPg->pBt->usableSize;
u8 * const pEnd = &aData[usableSize];
- int i;
+ int i = iFirst; /* Which cell to copy from pCArray*/
+ u32 j; /* Start of cell content area */
+ int iEnd = i+nCell; /* Loop terminator */
u8 *pCellptr = pPg->aCellIdx;
u8 *pTmp = sqlite3PagerTempSpace(pPg->pBt->pPager);
u8 *pData;
+ int k; /* Current slot in pCArray->apEnd[] */
+ u8 *pSrcEnd; /* Current pCArray->apEnd[k] value */
- i = get2byte(&aData[hdr+5]);
- memcpy(&pTmp[i], &aData[i], usableSize - i);
+ assert( i(u32)usableSize ){ j = 0; }
+ memcpy(&pTmp[j], &aData[j], usableSize - j);
+
+ for(k=0; pCArray->ixNx[k]<=i && ALWAYS(kapEnd[k];
pData = pEnd;
- for(i=0; iapCell[i];
+ u16 sz = pCArray->szCell[i];
+ assert( sz>0 );
if( SQLITE_WITHIN(pCell,aData,pEnd) ){
+ if( ((uptr)(pCell+sz))>(uptr)pEnd ) return SQLITE_CORRUPT_BKPT;
pCell = &pTmp[pCell - aData];
+ }else if( (uptr)(pCell+sz)>(uptr)pSrcEnd
+ && (uptr)(pCell)<(uptr)pSrcEnd
+ ){
+ return SQLITE_CORRUPT_BKPT;
}
- pData -= szCell[i];
+
+ pData -= sz;
put2byte(pCellptr, (pData - aData));
pCellptr += 2;
if( pData < pCellptr ) return SQLITE_CORRUPT_BKPT;
- memcpy(pData, pCell, szCell[i]);
- assert( szCell[i]==pPg->xCellSize(pPg, pCell) || CORRUPT_DB );
- testcase( szCell[i]!=pPg->xCellSize(pPg,pCell) );
+ memcpy(pData, pCell, sz);
+ assert( sz==pPg->xCellSize(pPg, pCell) || CORRUPT_DB );
+ testcase( sz!=pPg->xCellSize(pPg,pCell) );
+ i++;
+ if( i>=iEnd ) break;
+ if( pCArray->ixNx[k]<=i ){
+ k++;
+ pSrcEnd = pCArray->apEnd[k];
+ }
}
/* The pPg->nFree field is now set incorrectly. The caller will fix it. */
@@ -69431,12 +70348,11 @@ static int rebuildPage(
}
/*
-** Array apCell[] contains nCell pointers to b-tree cells. Array szCell
-** contains the size in bytes of each such cell. This function attempts to
-** add the cells stored in the array to page pPg. If it cannot (because
-** the page needs to be defragmented before the cells will fit), non-zero
-** is returned. Otherwise, if the cells are added successfully, zero is
-** returned.
+** The pCArray objects contains pointers to b-tree cells and the cell sizes.
+** This function attempts to add the cells stored in the array to page pPg.
+** If it cannot (because the page needs to be defragmented before the cells
+** will fit), non-zero is returned. Otherwise, if the cells are added
+** successfully, zero is returned.
**
** Argument pCellptr points to the first entry in the cell-pointer array
** (part of page pPg) to populate. After cell apCell[0] is written to the
@@ -69458,21 +70374,27 @@ static int rebuildPage(
static int pageInsertArray(
MemPage *pPg, /* Page to add cells to */
u8 *pBegin, /* End of cell-pointer array */
- u8 **ppData, /* IN/OUT: Page content -area pointer */
+ u8 **ppData, /* IN/OUT: Page content-area pointer */
u8 *pCellptr, /* Pointer to cell-pointer area */
int iFirst, /* Index of first cell to add */
int nCell, /* Number of cells to add to pPg */
CellArray *pCArray /* Array of cells */
){
- int i;
- u8 *aData = pPg->aData;
- u8 *pData = *ppData;
- int iEnd = iFirst + nCell;
+ int i = iFirst; /* Loop counter - cell index to insert */
+ u8 *aData = pPg->aData; /* Complete page */
+ u8 *pData = *ppData; /* Content area. A subset of aData[] */
+ int iEnd = iFirst + nCell; /* End of loop. One past last cell to ins */
+ int k; /* Current slot in pCArray->apEnd[] */
+ u8 *pEnd; /* Maximum extent of cell data */
assert( CORRUPT_DB || pPg->hdrOffset==0 ); /* Never called on page 1 */
- for(i=iFirst; iixNx[k]<=i && ALWAYS(kapEnd[k];
+ while( 1 /*Exit by break*/ ){
int sz, rc;
u8 *pSlot;
- sz = cachedCellSize(pCArray, i);
+ assert( pCArray->szCell[i]!=0 );
+ sz = pCArray->szCell[i];
if( (aData[1]==0 && aData[2]==0) || (pSlot = pageFindSlot(pPg,sz,&rc))==0 ){
if( (pData - pBegin)apCell[i]
|| pSlot>=(pCArray->apCell[i]+sz)
|| CORRUPT_DB );
+ if( (uptr)(pCArray->apCell[i]+sz)>(uptr)pEnd
+ && (uptr)(pCArray->apCell[i])<(uptr)pEnd
+ ){
+ assert( CORRUPT_DB );
+ (void)SQLITE_CORRUPT_BKPT;
+ return 1;
+ }
memmove(pSlot, pCArray->apCell[i], sz);
put2byte(pCellptr, (pSlot - aData));
pCellptr += 2;
+ i++;
+ if( i>=iEnd ) break;
+ if( pCArray->ixNx[k]<=i ){
+ k++;
+ pEnd = pCArray->apEnd[k];
+ }
}
*ppData = pData;
return 0;
}
/*
-** Array apCell[] contains nCell pointers to b-tree cells. Array szCell
-** contains the size in bytes of each such cell. This function adds the
-** space associated with each cell in the array that is currently stored
-** within the body of pPg to the pPg free-list. The cell-pointers and other
-** fields of the page are not updated.
+** The pCArray object contains pointers to b-tree cells and their sizes.
+**
+** This function adds the space associated with each cell in the array
+** that is currently stored within the body of pPg to the pPg free-list.
+** The cell-pointers and other fields of the page are not updated.
**
** This function returns the total number of cells added to the free-list.
*/
@@ -69547,9 +70482,9 @@ static int pageFreeArray(
}
/*
-** apCell[] and szCell[] contains pointers to and sizes of all cells in the
-** pages being balanced. The current page, pPg, has pPg->nCell cells starting
-** with apCell[iOld]. After balancing, this page should hold nNew cells
+** pCArray contains pointers to and sizes of all cells in the page being
+** balanced. The current page, pPg, has pPg->nCell cells starting with
+** pCArray->apCell[iOld]. After balancing, this page should hold nNew cells
** starting at apCell[iNew].
**
** This routine makes the necessary adjustments to pPg so that it contains
@@ -69581,13 +70516,17 @@ static int editPage(
#endif
/* Remove cells from the start and end of the page */
+ assert( nCell>=0 );
if( iOldnCell ) return SQLITE_CORRUPT_BKPT;
memmove(pPg->aCellIdx, &pPg->aCellIdx[nShift*2], nCell*2);
nCell -= nShift;
}
if( iNewEnd < iOldEnd ){
- nCell -= pageFreeArray(pPg, iNewEnd, iOldEnd - iNewEnd, pCArray);
+ int nTail = pageFreeArray(pPg, iNewEnd, iOldEnd - iNewEnd, pCArray);
+ assert( nCell>=nTail );
+ nCell -= nTail;
}
pData = &aData[get2byteNotZero(&aData[hdr+5])];
@@ -69597,6 +70536,7 @@ static int editPage(
if( iNew=0 );
pCellptr = pPg->aCellIdx;
memmove(&pCellptr[nAdd*2], pCellptr, nCell*2);
if( pageInsertArray(
@@ -69611,8 +70551,11 @@ static int editPage(
int iCell = (iOld + pPg->aiOvfl[i]) - iNew;
if( iCell>=0 && iCellaCellIdx[iCell * 2];
- memmove(&pCellptr[2], pCellptr, (nCell - iCell) * 2);
+ if( nCell>iCell ){
+ memmove(&pCellptr[2], pCellptr, (nCell - iCell) * 2);
+ }
nCell++;
+ cachedCellSize(pCArray, iCell+iNew);
if( pageInsertArray(
pPg, pBegin, &pData, pCellptr,
iCell+iNew, 1, pCArray
@@ -69621,6 +70564,7 @@ static int editPage(
}
/* Append cells to the end of the page */
+ assert( nCell>=0 );
pCellptr = &pPg->aCellIdx[nCell*2];
if( pageInsertArray(
pPg, pBegin, &pData, pCellptr,
@@ -69649,24 +70593,9 @@ static int editPage(
editpage_fail:
/* Unable to edit this page. Rebuild it from scratch instead. */
populateCellCache(pCArray, iNew, nNew);
- return rebuildPage(pPg, nNew, &pCArray->apCell[iNew], &pCArray->szCell[iNew]);
+ return rebuildPage(pCArray, iNew, nNew, pPg);
}
-/*
-** The following parameters determine how many adjacent pages get involved
-** in a balancing operation. NN is the number of neighbors on either side
-** of the page that participate in the balancing operation. NB is the
-** total number of pages that participate, including the target page and
-** NN neighbors on either side.
-**
-** The minimum value of NN is 1 (of course). Increasing NN above 1
-** (to 2 or 3) gives a modest improvement in SELECT and DELETE performance
-** in exchange for a larger degradation in INSERT and UPDATE performance.
-** The value of NN appears to give the best results overall.
-*/
-#define NN 1 /* Number of neighbors on either side of pPage */
-#define NB (NN*2+1) /* Total pages involved in the balance */
-
#ifndef SQLITE_OMIT_QUICKBALANCE
/*
@@ -69701,9 +70630,10 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
assert( sqlite3_mutex_held(pPage->pBt->mutex) );
assert( sqlite3PagerIswriteable(pParent->pDbPage) );
assert( pPage->nOverflow==1 );
-
- /* This error condition is now caught prior to reaching this function */
- if( NEVER(pPage->nCell==0) ) return SQLITE_CORRUPT_BKPT;
+
+ if( pPage->nCell==0 ) return SQLITE_CORRUPT_BKPT; /* dbfuzz001.test */
+ assert( pPage->nFree>=0 );
+ assert( pParent->nFree>=0 );
/* Allocate a new page. This page will become the right-sibling of
** pPage. Make the parent page writable, so that the new divider cell
@@ -69717,12 +70647,22 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
u8 *pCell = pPage->apOvfl[0];
u16 szCell = pPage->xCellSize(pPage, pCell);
u8 *pStop;
+ CellArray b;
assert( sqlite3PagerIswriteable(pNew->pDbPage) );
- assert( pPage->aData[0]==(PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF) );
+ assert( CORRUPT_DB || pPage->aData[0]==(PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF) );
zeroPage(pNew, PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF);
- rc = rebuildPage(pNew, 1, &pCell, &szCell);
- if( NEVER(rc) ) return rc;
+ b.nCell = 1;
+ b.pRef = pPage;
+ b.apCell = &pCell;
+ b.szCell = &szCell;
+ b.apEnd[0] = pPage->aDataEnd;
+ b.ixNx[0] = 2;
+ rc = rebuildPage(&b, 0, 1, pNew);
+ if( NEVER(rc) ){
+ releasePage(pNew);
+ return rc;
+ }
pNew->nFree = pBt->usableSize - pNew->cellOffset - 2 - szCell;
/* If this is an auto-vacuum database, update the pointer map
@@ -69737,7 +70677,7 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
if( ISAUTOVACUUM ){
ptrmapPut(pBt, pgnoNew, PTRMAP_BTREE, pParent->pgno, &rc);
if( szCell>pNew->minLocal ){
- ptrmapPutOvflPtr(pNew, pCell, &rc);
+ ptrmapPutOvflPtr(pNew, pNew, pCell, &rc);
}
}
@@ -69863,6 +70803,7 @@ static void copyNodeContent(MemPage *pFrom, MemPage *pTo, int *pRC){
*/
pTo->isInit = 0;
rc = btreeInitPage(pTo);
+ if( rc==SQLITE_OK ) rc = btreeComputeFreeSpace(pTo);
if( rc!=SQLITE_OK ){
*pRC = rc;
return;
@@ -69960,10 +70901,6 @@ static int balance_nonroot(
assert( sqlite3_mutex_held(pBt->mutex) );
assert( sqlite3PagerIswriteable(pParent->pDbPage) );
-#if 0
- TRACE(("BALANCE: begin page %d child of %d\n", pPage->pgno, pParent->pgno));
-#endif
-
/* At this point pParent may have at most one overflow cell. And if
** this overflow cell is present, it must be the cell with
** index iParentIdx. This scenario comes about when this function
@@ -69975,6 +70912,7 @@ static int balance_nonroot(
if( !aOvflSpace ){
return SQLITE_NOMEM_BKPT;
}
+ assert( pParent->nFree>=0 );
/* Find the sibling pages to balance. Also locate the cells in pParent
** that divide the siblings. An attempt is made to find NN siblings on
@@ -70014,7 +70952,13 @@ static int balance_nonroot(
memset(apOld, 0, (i+1)*sizeof(MemPage*));
goto balance_cleanup;
}
- nMaxCells += 1+apOld[i]->nCell+apOld[i]->nOverflow;
+ if( apOld[i]->nFree<0 ){
+ rc = btreeComputeFreeSpace(apOld[i]);
+ if( rc ){
+ memset(apOld, 0, (i)*sizeof(MemPage*));
+ goto balance_cleanup;
+ }
+ }
if( (i--)==0 ) break;
if( pParent->nOverflow && i+nxDiv==pParent->aiOvfl[0] ){
@@ -70058,6 +71002,7 @@ static int balance_nonroot(
/* Make nMaxCells a multiple of 4 in order to preserve 8-byte
** alignment */
+ nMaxCells = nOld*(MX_CELL(pBt) + ArraySize(pParent->apOvfl));
nMaxCells = (nMaxCells + 3)&~3;
/*
@@ -70068,7 +71013,7 @@ static int balance_nonroot(
+ nMaxCells*sizeof(u16) /* b.szCell */
+ pBt->pageSize; /* aSpace1 */
- assert( szScratch<=6*(int)pBt->pageSize );
+ assert( szScratch<=7*(int)pBt->pageSize );
b.apCell = sqlite3StackAllocRaw(0, szScratch );
if( b.apCell==0 ){
rc = SQLITE_NOMEM_BKPT;
@@ -70104,6 +71049,7 @@ static int balance_nonroot(
u16 maskPage = pOld->maskPage;
u8 *piCell = aData + pOld->cellOffset;
u8 *piEnd;
+ VVA_ONLY( int nCellAtStart = b.nCell; )
/* Verify that all sibling pages are of the same "type" (table-leaf,
** table-interior, index-leaf, or index-interior).
@@ -70132,6 +71078,10 @@ static int balance_nonroot(
*/
memset(&b.szCell[b.nCell], 0, sizeof(b.szCell[0])*(limit+pOld->nOverflow));
if( pOld->nOverflow>0 ){
+ if( NEVER(limitaiOvfl[0]) ){
+ rc = SQLITE_CORRUPT_BKPT;
+ goto balance_cleanup;
+ }
limit = pOld->aiOvfl[0];
for(j=0; jnCell+pOld->nOverflow) );
cntOld[i] = b.nCell;
if( iusableSize - 12 + leafCorrection;
- for(i=0; iaDataEnd;
+ b.ixNx[k] = cntOld[i];
+ if( k && b.ixNx[k]==b.ixNx[k-1] ){
+ k--; /* Omit b.ixNx[] entry for child pages with no cells */
+ }
+ if( !leafData ){
+ k++;
+ b.apEnd[k] = pParent->aDataEnd;
+ b.ixNx[k] = cntOld[i]+1;
+ }
+ assert( p->nFree>=0 );
szNew[i] = usableSpace - p->nFree;
for(j=0; jnOverflow; j++){
szNew[i] += 2 + p->xCellSize(p, p->apOvfl[j]);
@@ -70402,6 +71364,8 @@ static int balance_nonroot(
));
assert( sqlite3PagerIswriteable(pParent->pDbPage) );
+ assert( nNew>=1 && nNew<=ArraySize(apNew) );
+ assert( apNew[nNew-1]!=0 );
put4byte(pRight, apNew[nNew-1]->pgno);
/* If the sibling pages are not leaves, ensure that the right-child pointer
@@ -70429,19 +71393,20 @@ static int balance_nonroot(
** populated, not here.
*/
if( ISAUTOVACUUM ){
- MemPage *pNew = apNew[0];
- u8 *aOld = pNew->aData;
+ MemPage *pOld;
+ MemPage *pNew = pOld = apNew[0];
int cntOldNext = pNew->nCell + pNew->nOverflow;
- int usableSize = pBt->usableSize;
int iNew = 0;
int iOld = 0;
for(i=0; i=0 && iOldnCell + pOld->nOverflow + !leafData;
- aOld = pOld->aData;
}
if( i==cntNew[iNew] ){
pNew = apNew[++iNew];
@@ -70456,13 +71421,13 @@ static int balance_nonroot(
** overflow cell), we can skip updating the pointer map entries. */
if( iOld>=nNew
|| pNew->pgno!=aPgno[iOld]
- || !SQLITE_WITHIN(pCell,aOld,&aOld[usableSize])
+ || !SQLITE_WITHIN(pCell,pOld->aData,pOld->aDataEnd)
){
if( !leafCorrection ){
ptrmapPut(pBt, get4byte(pCell), PTRMAP_BTREE, pNew->pgno, &rc);
}
if( cachedCellSize(&b,i)>pNew->minLocal ){
- ptrmapPutOvflPtr(pNew, pCell, &rc);
+ ptrmapPutOvflPtr(pNew, pOld, pCell, &rc);
}
if( rc ) goto balance_cleanup;
}
@@ -70607,7 +71572,8 @@ static int balance_nonroot(
rc = defragmentPage(apNew[0], -1);
testcase( rc!=SQLITE_OK );
assert( apNew[0]->nFree ==
- (get2byte(&apNew[0]->aData[5])-apNew[0]->cellOffset-apNew[0]->nCell*2)
+ (get2byteNotZero(&apNew[0]->aData[5]) - apNew[0]->cellOffset
+ - apNew[0]->nCell*2)
|| rc!=SQLITE_OK
);
copyNodeContent(apNew[0], pParent, &rc);
@@ -70706,7 +71672,7 @@ static int balance_deeper(MemPage *pRoot, MemPage **ppChild){
}
assert( sqlite3PagerIswriteable(pChild->pDbPage) );
assert( sqlite3PagerIswriteable(pRoot->pDbPage) );
- assert( pChild->nCell==pRoot->nCell );
+ assert( pChild->nCell==pRoot->nCell || CORRUPT_DB );
TRACE(("BALANCE: copy root %d into %d\n", pRoot->pgno, pChild->pgno));
@@ -70745,10 +71711,13 @@ static int balance(BtCursor *pCur){
VVA_ONLY( int balance_deeper_called = 0 );
do {
- int iPage = pCur->iPage;
+ int iPage;
MemPage *pPage = pCur->pPage;
- if( iPage==0 ){
+ if( NEVER(pPage->nFree<0) && btreeComputeFreeSpace(pPage) ) break;
+ if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
+ break;
+ }else if( (iPage = pCur->iPage)==0 ){
if( pPage->nOverflow ){
/* The root page of the b-tree is overfull. In this case call the
** balance_deeper() function to create a new child for the root-page
@@ -70769,13 +71738,14 @@ static int balance(BtCursor *pCur){
}else{
break;
}
- }else if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
- break;
}else{
MemPage * const pParent = pCur->apPage[iPage-1];
int const iIdx = pCur->aiIdx[iPage-1];
rc = sqlite3PagerWrite(pParent->pDbPage);
+ if( rc==SQLITE_OK && pParent->nFree<0 ){
+ rc = btreeComputeFreeSpace(pParent);
+ }
if( rc==SQLITE_OK ){
#ifndef SQLITE_OMIT_QUICKBALANCE
if( pPage->intKeyLeaf
@@ -70886,7 +71856,11 @@ static int btreeOverwriteContent(
if( memcmp(pDest, ((u8*)pX->pData) + iOffset, iAmt)!=0 ){
int rc = sqlite3PagerWrite(pPage->pDbPage);
if( rc ) return rc;
- memcpy(pDest, ((u8*)pX->pData) + iOffset, iAmt);
+ /* In a corrupt database, it is possible for the source and destination
+ ** buffers to overlap. This is harmless since the database is already
+ ** corrupt but it does cause valgrind and ASAN warnings. So use
+ ** memmove(). */
+ memmove(pDest, ((u8*)pX->pData) + iOffset, iAmt);
}
}
return SQLITE_OK;
@@ -70905,7 +71879,9 @@ static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){
Pgno ovflPgno; /* Next overflow page to write */
u32 ovflPageSize; /* Size to write on overflow page */
- if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd ){
+ if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd
+ || pCur->info.pPayload < pPage->aData + pPage->cellOffset
+ ){
return SQLITE_CORRUPT_BKPT;
}
/* Overwrite the local portion first */
@@ -71118,6 +72094,10 @@ SQLITE_PRIVATE int sqlite3BtreeInsert(
pPage = pCur->pPage;
assert( pPage->intKey || pX->nKey>=0 );
assert( pPage->leaf || !pPage->intKey );
+ if( pPage->nFree<0 ){
+ rc = btreeComputeFreeSpace(pPage);
+ if( rc ) return rc;
+ }
TRACE(("INSERT: table=%d nkey=%lld ndata=%d page=%d %s\n",
pCur->pgnoRoot, pX->nKey, pX->nData, pPage->pgno,
@@ -71142,6 +72122,8 @@ SQLITE_PRIVATE int sqlite3BtreeInsert(
memcpy(newCell, oldCell, 4);
}
rc = clearCell(pPage, oldCell, &info);
+ testcase( pCur->curFlags & BTCF_ValidOvfl );
+ invalidateOverflowCache(pCur);
if( info.nSize==szNew && info.nLocal==info.nPayload
&& (!ISAUTOVACUUM || szNewminLocal)
){
@@ -71155,7 +72137,12 @@ SQLITE_PRIVATE int sqlite3BtreeInsert(
** new entry uses overflow pages, as the insertCell() call below is
** necessary to add the PTRMAP_OVERFLOW1 pointer-map entry. */
assert( rc==SQLITE_OK ); /* clearCell never fails when nLocal==nPayload */
- if( oldCell+szNew > pPage->aDataEnd ) return SQLITE_CORRUPT_BKPT;
+ if( oldCell < pPage->aData+pPage->hdrOffset+10 ){
+ return SQLITE_CORRUPT_BKPT;
+ }
+ if( oldCell+szNew > pPage->aDataEnd ){
+ return SQLITE_CORRUPT_BKPT;
+ }
memcpy(oldCell, newCell, szNew);
return SQLITE_OK;
}
@@ -71260,14 +72247,18 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
assert( pCur->curFlags & BTCF_WriteFlag );
assert( hasSharedCacheTableLock(p, pCur->pgnoRoot, pCur->pKeyInfo!=0, 2) );
assert( !hasReadConflicts(p, pCur->pgnoRoot) );
- assert( pCur->ixpPage->nCell );
- assert( pCur->eState==CURSOR_VALID );
assert( (flags & ~(BTREE_SAVEPOSITION | BTREE_AUXDELETE))==0 );
+ if( pCur->eState==CURSOR_REQUIRESEEK ){
+ rc = btreeRestoreCursorPosition(pCur);
+ if( rc ) return rc;
+ }
+ assert( pCur->eState==CURSOR_VALID );
iCellDepth = pCur->iPage;
iCellIdx = pCur->ix;
pPage = pCur->pPage;
pCell = findCell(pPage, iCellIdx);
+ if( pPage->nFree<0 && btreeComputeFreeSpace(pPage) ) return SQLITE_CORRUPT;
/* If the bPreserve flag is set to true, then the cursor position must
** be preserved following this delete operation. If the current delete
@@ -71281,6 +72272,7 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
if( bPreserve ){
if( !pPage->leaf
|| (pPage->nFree+cellSizePtr(pPage,pCell)+2)>(int)(pBt->usableSize*2/3)
+ || pPage->nCell==1 /* See dbfuzz001.test for a test case */
){
/* A b-tree rebalance will be required after deleting this entry.
** Save the cursor key. */
@@ -71337,6 +72329,10 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
Pgno n;
unsigned char *pTmp;
+ if( pLeaf->nFree<0 ){
+ rc = btreeComputeFreeSpace(pLeaf);
+ if( rc ) return rc;
+ }
if( iCellDepthiPage-1 ){
n = pCur->apPage[iCellDepth+1]->pgno;
}else{
@@ -71695,6 +72691,9 @@ static int btreeDropTable(Btree *p, Pgno iTable, int *piMoved){
assert( sqlite3BtreeHoldsMutex(p) );
assert( p->inTrans==TRANS_WRITE );
assert( iTable>=2 );
+ if( iTable>btreePagecount(pBt) ){
+ return SQLITE_CORRUPT_BKPT;
+ }
rc = btreeGetPage(pBt, (Pgno)iTable, &pPage, 0);
if( rc ) return rc;
@@ -72043,10 +73042,10 @@ static void checkList(
IntegrityCk *pCheck, /* Integrity checking context */
int isFreeList, /* True for a freelist. False for overflow page list */
int iPage, /* Page number for first page in the list */
- int N /* Expected number of pages in the list */
+ u32 N /* Expected number of pages in the list */
){
int i;
- int expected = N;
+ u32 expected = N;
int nErrAtStart = pCheck->nErr;
while( iPage!=0 && pCheck->mxErr ){
DbPage *pOvflPage;
@@ -72059,18 +73058,18 @@ static void checkList(
}
pOvflData = (unsigned char *)sqlite3PagerGetData(pOvflPage);
if( isFreeList ){
- int n = get4byte(&pOvflData[4]);
+ u32 n = (u32)get4byte(&pOvflData[4]);
#ifndef SQLITE_OMIT_AUTOVACUUM
if( pCheck->pBt->autoVacuum ){
checkPtrmap(pCheck, iPage, PTRMAP_FREEPAGE, 0);
}
#endif
- if( n>(int)pCheck->pBt->usableSize/4-2 ){
+ if( n>pCheck->pBt->usableSize/4-2 ){
checkAppendMsg(pCheck,
"freelist leaf count too big on page %d", iPage);
N--;
}else{
- for(i=0; ipBt->autoVacuum ){
@@ -72228,6 +73227,11 @@ static int checkTreePage(
"btreeInitPage() returns error code %d", rc);
goto end_of_check;
}
+ if( (rc = btreeComputeFreeSpace(pPage))!=0 ){
+ assert( rc==SQLITE_CORRUPT );
+ checkAppendMsg(pCheck, "free space corruption", rc);
+ goto end_of_check;
+ }
data = pPage->aData;
hdr = pPage->hdrOffset;
@@ -72300,7 +73304,7 @@ static int checkTreePage(
/* Check the content overflow list */
if( info.nPayload>info.nLocal ){
- int nPage; /* Number of pages on the overflow chain */
+ u32 nPage; /* Number of pages on the overflow chain */
Pgno pgnoOvfl; /* First page of the overflow chain */
assert( pc + info.nSize - 4 <= usableSize );
nPage = (info.nPayload - info.nLocal + usableSize - 5)/(usableSize - 4);
@@ -72360,9 +73364,9 @@ static int checkTreePage(
i = get2byte(&data[hdr+1]);
while( i>0 ){
int size, j;
- assert( (u32)i<=usableSize-4 ); /* Enforced by btreeInitPage() */
+ assert( (u32)i<=usableSize-4 ); /* Enforced by btreeComputeFreeSpace() */
size = get2byte(&data[i+2]);
- assert( (u32)(i+size)<=usableSize ); /* Enforced by btreeInitPage() */
+ assert( (u32)(i+size)<=usableSize ); /* due to btreeComputeFreeSpace() */
btreeHeapInsert(heap, (((u32)i)<<16)|(i+size-1));
/* EVIDENCE-OF: R-58208-19414 The first 2 bytes of a freeblock are a
** big-endian integer which is the offset in the b-tree page of the next
@@ -72371,8 +73375,8 @@ static int checkTreePage(
j = get2byte(&data[i]);
/* EVIDENCE-OF: R-06866-39125 Freeblocks are always connected in order of
** increasing offset. */
- assert( j==0 || j>i+size ); /* Enforced by btreeInitPage() */
- assert( (u32)j<=usableSize-4 ); /* Enforced by btreeInitPage() */
+ assert( j==0 || j>i+size ); /* Enforced by btreeComputeFreeSpace() */
+ assert( (u32)j<=usableSize-4 ); /* Enforced by btreeComputeFreeSpace() */
i = j;
}
/* Analyze the min-heap looking for overlap between cells and/or
@@ -72447,7 +73451,7 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck(
Pgno i;
IntegrityCk sCheck;
BtShared *pBt = p->pBt;
- int savedDbFlags = pBt->db->flags;
+ u64 savedDbFlags = pBt->db->flags;
char zErr[100];
VVA_ONLY( int nRef );
@@ -72514,7 +73518,7 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck(
}
#endif
testcase( pBt->db->flags & SQLITE_CellSizeCk );
- pBt->db->flags &= ~SQLITE_CellSizeCk;
+ pBt->db->flags &= ~(u64)SQLITE_CellSizeCk;
for(i=0; (int)iisAttached ){
pp = sqlite3PagerBackupPtr(sqlite3BtreePager(p->pSrc));
+ assert( pp!=0 );
while( *pp!=p ){
pp = &(*pp)->pNext;
+ assert( pp!=0 );
}
*pp = p->pNext;
}
@@ -73677,6 +74683,11 @@ copy_finished:
/* #include "sqliteInt.h" */
/* #include "vdbeInt.h" */
+/* True if X is a power of two. 0 is considered a power of two here.
+** In other words, return true if X has at most one bit set.
+*/
+#define ISPOWEROF2(X) (((X)&((X)-1))==0)
+
#ifdef SQLITE_DEBUG
/*
** Check invariants on a Mem object.
@@ -73696,8 +74707,8 @@ SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem *p){
** That saves a few cycles in inner loops. */
assert( (p->flags & MEM_Dyn)==0 || p->szMalloc==0 );
- /* Cannot be both MEM_Int and MEM_Real at the same time */
- assert( (p->flags & (MEM_Int|MEM_Real))!=(MEM_Int|MEM_Real) );
+ /* Cannot have more than one of MEM_Int, MEM_Real, or MEM_IntReal */
+ assert( ISPOWEROF2(p->flags & (MEM_Int|MEM_Real|MEM_IntReal)) );
if( p->flags & MEM_Null ){
/* Cannot be both MEM_Null and some other type */
@@ -73716,7 +74727,7 @@ SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem *p){
((p->flags&MEM_Static)!=0 ? 1 : 0) <= 1 );
/* No other bits set */
- assert( (p->flags & ~(MEM_Null|MEM_Term|MEM_Subtype
+ assert( (p->flags & ~(MEM_Null|MEM_Term|MEM_Subtype|MEM_FromBind
|MEM_Dyn|MEM_Ephem|MEM_Static))==0 );
}else{
/* A pure NULL might have other flags, such as MEM_Static, MEM_Dyn,
@@ -73751,9 +74762,31 @@ SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem *p){
}
#endif
+/*
+** Render a Mem object which is one of MEM_Int, MEM_Real, or MEM_IntReal
+** into a buffer.
+*/
+static void vdbeMemRenderNum(int sz, char *zBuf, Mem *p){
+ StrAccum acc;
+ assert( p->flags & (MEM_Int|MEM_Real|MEM_IntReal) );
+ sqlite3StrAccumInit(&acc, 0, zBuf, sz, 0);
+ if( p->flags & MEM_Int ){
+ sqlite3_str_appendf(&acc, "%lld", p->u.i);
+ }else if( p->flags & MEM_IntReal ){
+ sqlite3_str_appendf(&acc, "%!.15g", (double)p->u.i);
+ }else{
+ sqlite3_str_appendf(&acc, "%!.15g", p->u.r);
+ }
+ assert( acc.zText==zBuf && acc.mxAlloc<=0 );
+ zBuf[acc.nChar] = 0; /* Fast version of sqlite3StrAccumFinish(&acc) */
+}
+
#ifdef SQLITE_DEBUG
/*
-** Check that string value of pMem agrees with its integer or real value.
+** Validity checks on pMem. pMem holds a string.
+**
+** (1) Check that string value of pMem agrees with its integer or real value.
+** (2) Check that the string is correctly zero terminated
**
** A single int or real value always converts to the same strings. But
** many different strings can be converted into the same int or real.
@@ -73771,17 +74804,24 @@ SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem *p){
**
** This routine is for use inside of assert() statements only.
*/
-SQLITE_PRIVATE int sqlite3VdbeMemConsistentDualRep(Mem *p){
+SQLITE_PRIVATE int sqlite3VdbeMemValidStrRep(Mem *p){
char zBuf[100];
char *z;
int i, j, incr;
if( (p->flags & MEM_Str)==0 ) return 1;
- if( (p->flags & (MEM_Int|MEM_Real))==0 ) return 1;
- if( p->flags & MEM_Int ){
- sqlite3_snprintf(sizeof(zBuf),zBuf,"%lld",p->u.i);
- }else{
- sqlite3_snprintf(sizeof(zBuf),zBuf,"%!.15g",p->u.r);
+ if( p->flags & MEM_Term ){
+ /* Insure that the string is properly zero-terminated. Pay particular
+ ** attention to the case where p->n is odd */
+ if( p->szMalloc>0 && p->z==p->zMalloc ){
+ assert( p->enc==SQLITE_UTF8 || p->szMalloc >= ((p->n+1)&~1)+2 );
+ assert( p->enc!=SQLITE_UTF8 || p->szMalloc >= p->n+1 );
+ }
+ assert( p->z[p->n]==0 );
+ assert( p->enc==SQLITE_UTF8 || p->z[(p->n+1)&~1]==0 );
+ assert( p->enc==SQLITE_UTF8 || p->z[((p->n+1)&~1)+1]==0 );
}
+ if( (p->flags & (MEM_Int|MEM_Real|MEM_IntReal))==0 ) return 1;
+ vdbeMemRenderNum(sizeof(zBuf), zBuf, p);
z = p->z;
i = j = 0;
incr = 1;
@@ -73837,8 +74877,7 @@ SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *pMem, int desiredEnc){
}
/*
-** Make sure pMem->z points to a writable allocation of at least
-** min(n,32) bytes.
+** Make sure pMem->z points to a writable allocation of at least n bytes.
**
** If the bPreserve argument is true, then copy of the content of
** pMem->z into the new allocation. pMem must be either a string or
@@ -73857,9 +74896,14 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPre
assert( pMem->szMalloc==0
|| pMem->szMalloc==sqlite3DbMallocSize(pMem->db, pMem->zMalloc) );
- if( n<32 ) n = 32;
if( pMem->szMalloc>0 && bPreserve && pMem->z==pMem->zMalloc ){
- pMem->z = pMem->zMalloc = sqlite3DbReallocOrFree(pMem->db, pMem->z, n);
+ if( pMem->db ){
+ pMem->z = pMem->zMalloc = sqlite3DbReallocOrFree(pMem->db, pMem->z, n);
+ }else{
+ pMem->zMalloc = sqlite3Realloc(pMem->z, n);
+ if( pMem->zMalloc==0 ) sqlite3_free(pMem->z);
+ pMem->z = pMem->zMalloc;
+ }
bPreserve = 0;
}else{
if( pMem->szMalloc>0 ) sqlite3DbFreeNN(pMem->db, pMem->zMalloc);
@@ -73895,34 +74939,40 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPre
**
** Any prior string or blob content in the pMem object may be discarded.
** The pMem->xDel destructor is called, if it exists. Though MEM_Str
-** and MEM_Blob values may be discarded, MEM_Int, MEM_Real, and MEM_Null
-** values are preserved.
+** and MEM_Blob values may be discarded, MEM_Int, MEM_Real, MEM_IntReal,
+** and MEM_Null values are preserved.
**
** Return SQLITE_OK on success or an error code (probably SQLITE_NOMEM)
** if unable to complete the resizing.
*/
SQLITE_PRIVATE int sqlite3VdbeMemClearAndResize(Mem *pMem, int szNew){
- assert( szNew>0 );
+ assert( CORRUPT_DB || szNew>0 );
assert( (pMem->flags & MEM_Dyn)==0 || pMem->szMalloc==0 );
if( pMem->szMallocflags & MEM_Dyn)==0 );
pMem->z = pMem->zMalloc;
- pMem->flags &= (MEM_Null|MEM_Int|MEM_Real);
+ pMem->flags &= (MEM_Null|MEM_Int|MEM_Real|MEM_IntReal);
return SQLITE_OK;
}
/*
** It is already known that pMem contains an unterminated string.
** Add the zero terminator.
+**
+** Three bytes of zero are added. In this way, there is guaranteed
+** to be a double-zero byte at an even byte boundary in order to
+** terminate a UTF16 string, even if the initial size of the buffer
+** is an odd number of bytes.
*/
static SQLITE_NOINLINE int vdbeMemAddTerminator(Mem *pMem){
- if( sqlite3VdbeMemGrow(pMem, pMem->n+2, 1) ){
+ if( sqlite3VdbeMemGrow(pMem, pMem->n+3, 1) ){
return SQLITE_NOMEM_BKPT;
}
pMem->z[pMem->n] = 0;
pMem->z[pMem->n+1] = 0;
+ pMem->z[pMem->n+2] = 0;
pMem->flags |= MEM_Term;
return SQLITE_OK;
}
@@ -73959,13 +75009,15 @@ SQLITE_PRIVATE int sqlite3VdbeMemMakeWriteable(Mem *pMem){
SQLITE_PRIVATE int sqlite3VdbeMemExpandBlob(Mem *pMem){
int nByte;
assert( pMem->flags & MEM_Zero );
- assert( pMem->flags&MEM_Blob );
+ assert( (pMem->flags&MEM_Blob)!=0 || MemNullNochng(pMem) );
+ testcase( sqlite3_value_nochange(pMem) );
assert( !sqlite3VdbeMemIsRowSet(pMem) );
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
/* Set nByte to the number of bytes required to store the expanded blob. */
nByte = pMem->n + pMem->u.nZero;
if( nByte<=0 ){
+ if( (pMem->flags & MEM_Blob)==0 ) return SQLITE_OK;
nByte = 1;
}
if( sqlite3VdbeMemGrow(pMem, nByte, 1) ){
@@ -73994,12 +75046,12 @@ SQLITE_PRIVATE int sqlite3VdbeMemNulTerminate(Mem *pMem){
}
/*
-** Add MEM_Str to the set of representations for the given Mem. Numbers
-** are converted using sqlite3_snprintf(). Converting a BLOB to a string
-** is a no-op.
+** Add MEM_Str to the set of representations for the given Mem. This
+** routine is only called if pMem is a number of some kind, not a NULL
+** or a BLOB.
**
-** Existing representations MEM_Int and MEM_Real are invalidated if
-** bForce is true but are retained if bForce is false.
+** Existing representations MEM_Int, MEM_Real, or MEM_IntReal are invalidated
+** if bForce is true but are retained if bForce is false.
**
** A MEM_Null value will never be passed to this function. This function is
** used for converting values to text for returning to the user (i.e. via
@@ -74008,13 +75060,12 @@ SQLITE_PRIVATE int sqlite3VdbeMemNulTerminate(Mem *pMem){
** user and the latter is an internal programming error.
*/
SQLITE_PRIVATE int sqlite3VdbeMemStringify(Mem *pMem, u8 enc, u8 bForce){
- int fg = pMem->flags;
const int nByte = 32;
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
- assert( !(fg&MEM_Zero) );
- assert( !(fg&(MEM_Str|MEM_Blob)) );
- assert( fg&(MEM_Int|MEM_Real) );
+ assert( !(pMem->flags&MEM_Zero) );
+ assert( !(pMem->flags&(MEM_Str|MEM_Blob)) );
+ assert( pMem->flags&(MEM_Int|MEM_Real|MEM_IntReal) );
assert( !sqlite3VdbeMemIsRowSet(pMem) );
assert( EIGHT_BYTE_ALIGNMENT(pMem) );
@@ -74024,22 +75075,12 @@ SQLITE_PRIVATE int sqlite3VdbeMemStringify(Mem *pMem, u8 enc, u8 bForce){
return SQLITE_NOMEM_BKPT;
}
- /* For a Real or Integer, use sqlite3_snprintf() to produce the UTF-8
- ** string representation of the value. Then, if the required encoding
- ** is UTF-16le or UTF-16be do a translation.
- **
- ** FIX ME: It would be better if sqlite3_snprintf() could do UTF-16.
- */
- if( fg & MEM_Int ){
- sqlite3_snprintf(nByte, pMem->z, "%lld", pMem->u.i);
- }else{
- assert( fg & MEM_Real );
- sqlite3_snprintf(nByte, pMem->z, "%!.15g", pMem->u.r);
- }
- pMem->n = sqlite3Strlen30(pMem->z);
+ vdbeMemRenderNum(nByte, pMem->z, pMem);
+ assert( pMem->z!=0 );
+ pMem->n = sqlite3Strlen30NN(pMem->z);
pMem->enc = SQLITE_UTF8;
pMem->flags |= MEM_Str|MEM_Term;
- if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real);
+ if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal);
sqlite3VdbeChangeEncoding(pMem, enc);
return SQLITE_OK;
}
@@ -74213,7 +75254,8 @@ SQLITE_PRIVATE i64 sqlite3VdbeIntValue(Mem *pMem){
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
assert( EIGHT_BYTE_ALIGNMENT(pMem) );
flags = pMem->flags;
- if( flags & MEM_Int ){
+ if( flags & (MEM_Int|MEM_IntReal) ){
+ testcase( flags & MEM_IntReal );
return pMem->u.i;
}else if( flags & MEM_Real ){
return doubleToInt64(pMem->u.r);
@@ -74242,7 +75284,8 @@ SQLITE_PRIVATE double sqlite3VdbeRealValue(Mem *pMem){
assert( EIGHT_BYTE_ALIGNMENT(pMem) );
if( pMem->flags & MEM_Real ){
return pMem->u.r;
- }else if( pMem->flags & MEM_Int ){
+ }else if( pMem->flags & (MEM_Int|MEM_IntReal) ){
+ testcase( pMem->flags & MEM_IntReal );
return (double)pMem->u.i;
}else if( pMem->flags & (MEM_Str|MEM_Blob) ){
return memRealValue(pMem);
@@ -74257,7 +75300,8 @@ SQLITE_PRIVATE double sqlite3VdbeRealValue(Mem *pMem){
** Return the value ifNull if pMem is NULL.
*/
SQLITE_PRIVATE int sqlite3VdbeBooleanValue(Mem *pMem, int ifNull){
- if( pMem->flags & MEM_Int ) return pMem->u.i!=0;
+ testcase( pMem->flags & MEM_IntReal );
+ if( pMem->flags & (MEM_Int|MEM_IntReal) ) return pMem->u.i!=0;
if( pMem->flags & MEM_Null ) return ifNull;
return sqlite3VdbeRealValue(pMem)!=0.0;
}
@@ -74320,17 +75364,21 @@ SQLITE_PRIVATE int sqlite3VdbeMemRealify(Mem *pMem){
/* Compare a floating point value to an integer. Return true if the two
** values are the same within the precision of the floating point value.
**
+** This function assumes that i was obtained by assignment from r1.
+**
** For some versions of GCC on 32-bit machines, if you do the more obvious
** comparison of "r1==(double)i" you sometimes get an answer of false even
** though the r1 and (double)i values are bit-for-bit the same.
*/
-static int sqlite3RealSameAsInt(double r1, sqlite3_int64 i){
+SQLITE_PRIVATE int sqlite3RealSameAsInt(double r1, sqlite3_int64 i){
double r2 = (double)i;
- return memcmp(&r1, &r2, sizeof(r1))==0;
+ return r1==0.0
+ || (memcmp(&r1, &r2, sizeof(r1))==0
+ && i >= -2251799813685248LL && i < 2251799813685248LL);
}
/*
-** Convert pMem so that it has types MEM_Real or MEM_Int or both.
+** Convert pMem so that it has type MEM_Real or MEM_Int.
** Invalidate any prior representations.
**
** Every effort is made to force the conversion, even if the input
@@ -74338,25 +75386,26 @@ static int sqlite3RealSameAsInt(double r1, sqlite3_int64 i){
** as much of the string as we can and ignore the rest.
*/
SQLITE_PRIVATE int sqlite3VdbeMemNumerify(Mem *pMem){
- if( (pMem->flags & (MEM_Int|MEM_Real|MEM_Null))==0 ){
+ testcase( pMem->flags & MEM_Int );
+ testcase( pMem->flags & MEM_Real );
+ testcase( pMem->flags & MEM_IntReal );
+ testcase( pMem->flags & MEM_Null );
+ if( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))==0 ){
int rc;
+ sqlite3_int64 ix;
assert( (pMem->flags & (MEM_Blob|MEM_Str))!=0 );
assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
- rc = sqlite3Atoi64(pMem->z, &pMem->u.i, pMem->n, pMem->enc);
- if( rc==0 ){
+ rc = sqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc);
+ if( ((rc==0 || rc==1) && sqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)<=1)
+ || sqlite3RealSameAsInt(pMem->u.r, (ix = (i64)pMem->u.r))
+ ){
+ pMem->u.i = ix;
MemSetTypeFlag(pMem, MEM_Int);
}else{
- i64 i = pMem->u.i;
- sqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc);
- if( rc==1 && sqlite3RealSameAsInt(pMem->u.r, i) ){
- pMem->u.i = i;
- MemSetTypeFlag(pMem, MEM_Int);
- }else{
- MemSetTypeFlag(pMem, MEM_Real);
- }
+ MemSetTypeFlag(pMem, MEM_Real);
}
}
- assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_Null))!=0 );
+ assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))!=0 );
pMem->flags &= ~(MEM_Str|MEM_Blob|MEM_Zero);
return SQLITE_OK;
}
@@ -74399,7 +75448,7 @@ SQLITE_PRIVATE void sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
pMem->flags |= (pMem->flags&MEM_Blob)>>3;
sqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding);
assert( pMem->flags & MEM_Str || pMem->db->mallocFailed );
- pMem->flags &= ~(MEM_Int|MEM_Real|MEM_Blob|MEM_Zero);
+ pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal|MEM_Blob|MEM_Zero);
break;
}
}
@@ -74583,7 +75632,7 @@ SQLITE_PRIVATE void sqlite3VdbeMemAboutToChange(Vdbe *pVdbe, Mem *pMem){
** dual type, are allowed, as long as the underlying value is the
** same. */
u16 mFlags = pMem->flags & pX->flags & pX->mScopyFlags;
- assert( (mFlags&MEM_Int)==0 || pMem->u.i==pX->u.i );
+ assert( (mFlags&(MEM_Int|MEM_IntReal))==0 || pMem->u.i==pX->u.i );
assert( (mFlags&MEM_Real)==0 || pMem->u.r==pX->u.r );
assert( (mFlags&MEM_Str)==0 || (pMem->n==pX->n && pMem->z==pX->z) );
assert( (mFlags&MEM_Blob)==0 || sqlite3BlobCompare(pMem,pX)==0 );
@@ -74705,7 +75754,6 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr(
assert( enc!=0 );
if( enc==SQLITE_UTF8 ){
nByte = 0x7fffffff & (int)strlen(z);
- if( nByte>iLimit ) nByte = iLimit+1;
}else{
for(nByte=0; nByte<=iLimit && (z[nByte] | z[nByte+1]); nByte+=2){}
}
@@ -74717,29 +75765,30 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr(
** management (one of MEM_Dyn or MEM_Static).
*/
if( xDel==SQLITE_TRANSIENT ){
- int nAlloc = nByte;
+ u32 nAlloc = nByte;
if( flags&MEM_Term ){
nAlloc += (enc==SQLITE_UTF8?1:2);
}
if( nByte>iLimit ){
- return SQLITE_TOOBIG;
+ return sqlite3ErrorToParser(pMem->db, SQLITE_TOOBIG);
}
testcase( nAlloc==0 );
testcase( nAlloc==31 );
testcase( nAlloc==32 );
- if( sqlite3VdbeMemClearAndResize(pMem, MAX(nAlloc,32)) ){
+ if( sqlite3VdbeMemClearAndResize(pMem, (int)MAX(nAlloc,32)) ){
return SQLITE_NOMEM_BKPT;
}
memcpy(pMem->z, z, nAlloc);
- }else if( xDel==SQLITE_DYNAMIC ){
- sqlite3VdbeMemRelease(pMem);
- pMem->zMalloc = pMem->z = (char *)z;
- pMem->szMalloc = sqlite3DbMallocSize(pMem->db, pMem->zMalloc);
}else{
sqlite3VdbeMemRelease(pMem);
pMem->z = (char *)z;
- pMem->xDel = xDel;
- flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn);
+ if( xDel==SQLITE_DYNAMIC ){
+ pMem->zMalloc = pMem->z;
+ pMem->szMalloc = sqlite3DbMallocSize(pMem->db, pMem->zMalloc);
+ }else{
+ pMem->xDel = xDel;
+ flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn);
+ }
}
pMem->n = nByte;
@@ -74782,6 +75831,9 @@ static SQLITE_NOINLINE int vdbeMemFromBtreeResize(
){
int rc;
pMem->flags = MEM_Null;
+ if( sqlite3BtreeMaxRecordSize(pCur)z);
if( rc==SQLITE_OK ){
@@ -74855,7 +75907,7 @@ static SQLITE_NOINLINE const void *valueToText(sqlite3_value* pVal, u8 enc){
assert(pVal->enc==(enc & ~SQLITE_UTF16_ALIGNED) || pVal->db==0
|| pVal->db->mallocFailed );
if( pVal->enc==(enc & ~SQLITE_UTF16_ALIGNED) ){
- assert( sqlite3VdbeMemConsistentDualRep(pVal) );
+ assert( sqlite3VdbeMemValidStrRep(pVal) );
return pVal->z;
}else{
return 0;
@@ -74878,7 +75930,7 @@ SQLITE_PRIVATE const void *sqlite3ValueText(sqlite3_value* pVal, u8 enc){
assert( (enc&3)==(enc&~SQLITE_UTF16_ALIGNED) );
assert( !sqlite3VdbeMemIsRowSet(pVal) );
if( (pVal->flags&(MEM_Str|MEM_Term))==(MEM_Str|MEM_Term) && pVal->enc==enc ){
- assert( sqlite3VdbeMemConsistentDualRep(pVal) );
+ assert( sqlite3VdbeMemValidStrRep(pVal) );
return pVal->z;
}
if( pVal->flags&MEM_Null ){
@@ -74922,7 +75974,7 @@ struct ValueNewStat4Ctx {
** an sqlite3_value within the UnpackedRecord.a[] array.
*/
static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( p ){
UnpackedRecord *pRec = p->ppRec[0];
@@ -74958,7 +76010,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
}
#else
UNUSED_PARAMETER(p);
-#endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */
+#endif /* defined(SQLITE_ENABLE_STAT4) */
return sqlite3ValueNew(db);
}
@@ -74982,7 +76034,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
** and sets (*ppVal) to NULL. Or, if an error occurs, (*ppVal) is set to
** NULL and an SQLite error code returned.
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
static int valueFromFunction(
sqlite3 *db, /* The database connection */
Expr *p, /* The expression to evaluate */
@@ -75065,7 +76117,7 @@ static int valueFromFunction(
}
#else
# define valueFromFunction(a,b,c,d,e,f) SQLITE_OK
-#endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */
+#endif /* defined(SQLITE_ENABLE_STAT4) */
/*
** Extract a value from the supplied expression in the manner described
@@ -75094,7 +76146,7 @@ static int valueFromExpr(
assert( pExpr!=0 );
while( (op = pExpr->op)==TK_UPLUS || op==TK_SPAN ) pExpr = pExpr->pLeft;
-#if defined(SQLITE_ENABLE_STAT3_OR_STAT4)
+#if defined(SQLITE_ENABLE_STAT4)
if( op==TK_REGISTER ) op = pExpr->op2;
#else
if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
@@ -75143,7 +76195,12 @@ static int valueFromExpr(
}else{
sqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8);
}
- if( pVal->flags & (MEM_Int|MEM_Real) ) pVal->flags &= ~MEM_Str;
+ assert( (pVal->flags & MEM_IntReal)==0 );
+ if( pVal->flags & (MEM_Int|MEM_IntReal|MEM_Real) ){
+ testcase( pVal->flags & MEM_Int );
+ testcase( pVal->flags & MEM_Real );
+ pVal->flags &= ~MEM_Str;
+ }
if( enc!=SQLITE_UTF8 ){
rc = sqlite3VdbeChangeEncoding(pVal, enc);
}
@@ -75166,7 +76223,7 @@ static int valueFromExpr(
}else if( op==TK_NULL ){
pVal = valueNew(db, pCtx);
if( pVal==0 ) goto no_mem;
- sqlite3VdbeMemNumerify(pVal);
+ sqlite3VdbeMemSetNull(pVal);
}
#ifndef SQLITE_OMIT_BLOB_LITERAL
else if( op==TK_BLOB ){
@@ -75182,28 +76239,30 @@ static int valueFromExpr(
0, SQLITE_DYNAMIC);
}
#endif
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
else if( op==TK_FUNCTION && pCtx!=0 ){
rc = valueFromFunction(db, pExpr, enc, affinity, &pVal, pCtx);
}
#endif
else if( op==TK_TRUEFALSE ){
- pVal = valueNew(db, pCtx);
- pVal->flags = MEM_Int;
- pVal->u.i = pExpr->u.zToken[4]==0;
+ pVal = valueNew(db, pCtx);
+ if( pVal ){
+ pVal->flags = MEM_Int;
+ pVal->u.i = pExpr->u.zToken[4]==0;
+ }
}
*ppVal = pVal;
return rc;
no_mem:
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( pCtx==0 || pCtx->pParse->nErr==0 )
#endif
sqlite3OomFault(db);
sqlite3DbFree(db, zVal);
assert( *ppVal==0 );
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( pCtx==0 ) sqlite3ValueFree(pVal);
#else
assert( pCtx==0 ); sqlite3ValueFree(pVal);
@@ -75231,56 +76290,7 @@ SQLITE_PRIVATE int sqlite3ValueFromExpr(
return pExpr ? valueFromExpr(db, pExpr, enc, affinity, ppVal, 0) : 0;
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
-/*
-** The implementation of the sqlite_record() function. This function accepts
-** a single argument of any type. The return value is a formatted database
-** record (a blob) containing the argument value.
-**
-** This is used to convert the value stored in the 'sample' column of the
-** sqlite_stat3 table to the record format SQLite uses internally.
-*/
-static void recordFunc(
- sqlite3_context *context,
- int argc,
- sqlite3_value **argv
-){
- const int file_format = 1;
- u32 iSerial; /* Serial type */
- int nSerial; /* Bytes of space for iSerial as varint */
- u32 nVal; /* Bytes of space required for argv[0] */
- int nRet;
- sqlite3 *db;
- u8 *aRet;
-
- UNUSED_PARAMETER( argc );
- iSerial = sqlite3VdbeSerialType(argv[0], file_format, &nVal);
- nSerial = sqlite3VarintLen(iSerial);
- db = sqlite3_context_db_handle(context);
-
- nRet = 1 + nSerial + nVal;
- aRet = sqlite3DbMallocRawNN(db, nRet);
- if( aRet==0 ){
- sqlite3_result_error_nomem(context);
- }else{
- aRet[0] = nSerial+1;
- putVarint32(&aRet[1], iSerial);
- sqlite3VdbeSerialPut(&aRet[1+nSerial], argv[0], iSerial);
- sqlite3_result_blob(context, aRet, nRet, SQLITE_TRANSIENT);
- sqlite3DbFreeNN(db, aRet);
- }
-}
-
-/*
-** Register built-in functions used to help read ANALYZE data.
-*/
-SQLITE_PRIVATE void sqlite3AnalyzeFunctions(void){
- static FuncDef aAnalyzeTableFuncs[] = {
- FUNCTION(sqlite_record, 1, 0, 0, recordFunc),
- };
- sqlite3InsertBuiltinFuncs(aAnalyzeTableFuncs, ArraySize(aAnalyzeTableFuncs));
-}
-
+#ifdef SQLITE_ENABLE_STAT4
/*
** Attempt to extract a value from pExpr and use it to construct *ppVal.
**
@@ -75583,7 +76593,7 @@ SQLITE_PRIVATE Vdbe *sqlite3VdbeCreate(Parse *pParse){
pParse->pVdbe = p;
assert( pParse->aLabel==0 );
assert( pParse->nLabel==0 );
- assert( pParse->nOpAlloc==0 );
+ assert( p->nOpAlloc==0 );
assert( pParse->szOpAlloc==0 );
sqlite3VdbeAddOp2(p, OP_Init, 0, 1);
return p;
@@ -75613,6 +76623,43 @@ SQLITE_PRIVATE void sqlite3VdbeSetSql(Vdbe *p, const char *z, int n, u8 prepFlag
p->zSql = sqlite3DbStrNDup(p->db, z, n);
}
+#ifdef SQLITE_ENABLE_NORMALIZE
+/*
+** Add a new element to the Vdbe->pDblStr list.
+*/
+SQLITE_PRIVATE void sqlite3VdbeAddDblquoteStr(sqlite3 *db, Vdbe *p, const char *z){
+ if( p ){
+ int n = sqlite3Strlen30(z);
+ DblquoteStr *pStr = sqlite3DbMallocRawNN(db,
+ sizeof(*pStr)+n+1-sizeof(pStr->z));
+ if( pStr ){
+ pStr->pNextStr = p->pDblStr;
+ p->pDblStr = pStr;
+ memcpy(pStr->z, z, n+1);
+ }
+ }
+}
+#endif
+
+#ifdef SQLITE_ENABLE_NORMALIZE
+/*
+** zId of length nId is a double-quoted identifier. Check to see if
+** that identifier is really used as a string literal.
+*/
+SQLITE_PRIVATE int sqlite3VdbeUsesDoubleQuotedString(
+ Vdbe *pVdbe, /* The prepared statement */
+ const char *zId /* The double-quoted identifier, already dequoted */
+){
+ DblquoteStr *pStr;
+ assert( zId!=0 );
+ if( pVdbe->pDblStr==0 ) return 0;
+ for(pStr=pVdbe->pDblStr; pStr; pStr=pStr->pNextStr){
+ if( strcmp(zId, pStr->z)==0 ) return 1;
+ }
+ return 0;
+}
+#endif
+
/*
** Swap all content between two VDBE structures.
*/
@@ -75632,6 +76679,11 @@ SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
zTmp = pA->zSql;
pA->zSql = pB->zSql;
pB->zSql = zTmp;
+#if 0
+ zTmp = pA->zNormSql;
+ pA->zNormSql = pB->zNormSql;
+ pB->zNormSql = zTmp;
+#endif
pB->expmask = pA->expmask;
pB->prepFlags = pA->prepFlags;
memcpy(pB->aCounter, pA->aCounter, sizeof(pB->aCounter));
@@ -75644,7 +76696,7 @@ SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
** to 1024/sizeof(Op).
**
** If an out-of-memory error occurs while resizing the array, return
-** SQLITE_NOMEM. In this case Vdbe.aOp and Parse.nOpAlloc remain
+** SQLITE_NOMEM. In this case Vdbe.aOp and Vdbe.nOpAlloc remain
** unchanged (this is so that any opcodes already allocated can be
** correctly deallocated along with the rest of the Vdbe).
*/
@@ -75660,9 +76712,11 @@ static int growOpArray(Vdbe *v, int nOp){
** operation (without SQLITE_TEST_REALLOC_STRESS) is to double the current
** size of the op array or add 1KB of space, whichever is smaller. */
#ifdef SQLITE_TEST_REALLOC_STRESS
- int nNew = (p->nOpAlloc>=512 ? p->nOpAlloc*2 : p->nOpAlloc+nOp);
+ sqlite3_int64 nNew = (v->nOpAlloc>=512 ? 2*(sqlite3_int64)v->nOpAlloc
+ : (sqlite3_int64)v->nOpAlloc+nOp);
#else
- int nNew = (p->nOpAlloc ? p->nOpAlloc*2 : (int)(1024/sizeof(Op)));
+ sqlite3_int64 nNew = (v->nOpAlloc ? 2*(sqlite3_int64)v->nOpAlloc
+ : (sqlite3_int64)(1024/sizeof(Op)));
UNUSED_PARAMETER(nOp);
#endif
@@ -75673,11 +76727,11 @@ static int growOpArray(Vdbe *v, int nOp){
}
assert( nOp<=(1024/sizeof(Op)) );
- assert( nNew>=(p->nOpAlloc+nOp) );
+ assert( nNew>=(v->nOpAlloc+nOp) );
pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
if( pNew ){
p->szOpAlloc = sqlite3DbMallocSize(p->db, pNew);
- p->nOpAlloc = p->szOpAlloc/sizeof(Op);
+ v->nOpAlloc = p->szOpAlloc/sizeof(Op);
v->aOp = pNew;
}
return (pNew ? SQLITE_OK : SQLITE_NOMEM_BKPT);
@@ -75711,9 +76765,9 @@ static void test_addop_breakpoint(void){
** operand.
*/
static SQLITE_NOINLINE int growOp3(Vdbe *p, int op, int p1, int p2, int p3){
- assert( p->pParse->nOpAlloc<=p->nOp );
+ assert( p->nOpAlloc<=p->nOp );
if( growOpArray(p, 1) ) return 1;
- assert( p->pParse->nOpAlloc>p->nOp );
+ assert( p->nOpAlloc>p->nOp );
return sqlite3VdbeAddOp3(p, op, p1, p2, p3);
}
SQLITE_PRIVATE int sqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){
@@ -75723,7 +76777,7 @@ SQLITE_PRIVATE int sqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){
i = p->nOp;
assert( p->magic==VDBE_MAGIC_INIT );
assert( op>=0 && op<0xff );
- if( p->pParse->nOpAlloc<=i ){
+ if( p->nOpAlloc<=i ){
return growOp3(p, op, p1, p2, p3);
}
p->nOp++;
@@ -75855,13 +76909,29 @@ SQLITE_PRIVATE int sqlite3VdbeExplainParent(Parse *pParse){
}
/*
-** Add a new OP_Explain opcode.
+** Set a debugger breakpoint on the following routine in order to
+** monitor the EXPLAIN QUERY PLAN code generation.
+*/
+#if defined(SQLITE_DEBUG)
+SQLITE_PRIVATE void sqlite3ExplainBreakpoint(const char *z1, const char *z2){
+ (void)z1;
+ (void)z2;
+}
+#endif
+
+/*
+** Add a new OP_ opcode.
**
** If the bPush flag is true, then make this opcode the parent for
** subsequent Explains until sqlite3VdbeExplainPop() is called.
*/
SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt, ...){
- if( pParse->explain==2 ){
+#ifndef SQLITE_DEBUG
+ /* Always include the OP_Explain opcodes if SQLITE_DEBUG is defined.
+ ** But omit them (for performance) during production builds */
+ if( pParse->explain==2 )
+#endif
+ {
char *zMsg;
Vdbe *v;
va_list ap;
@@ -75873,7 +76943,10 @@ SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt
iThis = v->nOp;
sqlite3VdbeAddOp4(v, OP_Explain, iThis, pParse->addrExplain, 0,
zMsg, P4_DYNAMIC);
- if( bPush) pParse->addrExplain = iThis;
+ sqlite3ExplainBreakpoint(bPush?"PUSH":"", sqlite3VdbeGetOp(v,-1)->p4.z);
+ if( bPush){
+ pParse->addrExplain = iThis;
+ }
}
}
@@ -75881,6 +76954,7 @@ SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt
** Pop the EXPLAIN QUERY PLAN stack one level.
*/
SQLITE_PRIVATE void sqlite3VdbeExplainPop(Parse *pParse){
+ sqlite3ExplainBreakpoint("POP", 0);
pParse->addrExplain = sqlite3VdbeExplainParent(pParse);
}
#endif /* SQLITE_OMIT_EXPLAIN */
@@ -75945,21 +77019,22 @@ SQLITE_PRIVATE void sqlite3VdbeEndCoroutine(Vdbe *v, int regYield){
** The VDBE knows that a P2 value is a label because labels are
** always negative and P2 values are suppose to be non-negative.
** Hence, a negative P2 value is a label that has yet to be resolved.
+** (Later:) This is only true for opcodes that have the OPFLG_JUMP
+** property.
**
-** Zero is returned if a malloc() fails.
+** Variable usage notes:
+**
+** Parse.aLabel[x] Stores the address that the x-th label resolves
+** into. For testing (SQLITE_DEBUG), unresolved
+** labels stores -1, but that is not required.
+** Parse.nLabelAlloc Number of slots allocated to Parse.aLabel[]
+** Parse.nLabel The *negative* of the number of labels that have
+** been issued. The negative is stored because
+** that gives a performance improvement over storing
+** the equivalent positive value.
*/
-SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Vdbe *v){
- Parse *p = v->pParse;
- int i = p->nLabel++;
- assert( v->magic==VDBE_MAGIC_INIT );
- if( (i & (i-1))==0 ){
- p->aLabel = sqlite3DbReallocOrFree(p->db, p->aLabel,
- (i*2+1)*sizeof(p->aLabel[0]));
- }
- if( p->aLabel ){
- p->aLabel[i] = -1;
- }
- return ADDR(i);
+SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Parse *pParse){
+ return --pParse->nLabel;
}
/*
@@ -75967,18 +77042,35 @@ SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Vdbe *v){
** be inserted. The parameter "x" must have been obtained from
** a prior call to sqlite3VdbeMakeLabel().
*/
+static SQLITE_NOINLINE void resizeResolveLabel(Parse *p, Vdbe *v, int j){
+ int nNewSize = 10 - p->nLabel;
+ p->aLabel = sqlite3DbReallocOrFree(p->db, p->aLabel,
+ nNewSize*sizeof(p->aLabel[0]));
+ if( p->aLabel==0 ){
+ p->nLabelAlloc = 0;
+ }else{
+#ifdef SQLITE_DEBUG
+ int i;
+ for(i=p->nLabelAlloc; iaLabel[i] = -1;
+#endif
+ p->nLabelAlloc = nNewSize;
+ p->aLabel[j] = v->nOp;
+ }
+}
SQLITE_PRIVATE void sqlite3VdbeResolveLabel(Vdbe *v, int x){
Parse *p = v->pParse;
int j = ADDR(x);
assert( v->magic==VDBE_MAGIC_INIT );
- assert( jnLabel );
+ assert( j<-p->nLabel );
assert( j>=0 );
- if( p->aLabel ){
#ifdef SQLITE_DEBUG
- if( p->db->flags & SQLITE_VdbeAddopTrace ){
- printf("RESOLVE LABEL %d to %d\n", x, v->nOp);
- }
+ if( p->db->flags & SQLITE_VdbeAddopTrace ){
+ printf("RESOLVE LABEL %d to %d\n", x, v->nOp);
+ }
#endif
+ if( p->nLabelAlloc + p->nLabel < 0 ){
+ resizeResolveLabel(p,v,j);
+ }else{
assert( p->aLabel[j]==(-1) ); /* Labels may only be resolved once */
p->aLabel[j] = v->nOp;
}
@@ -76094,6 +77186,7 @@ SQLITE_PRIVATE int sqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){
int hasAbort = 0;
int hasFkCounter = 0;
int hasCreateTable = 0;
+ int hasCreateIndex = 0;
int hasInitCoroutine = 0;
Op *pOp;
VdbeOpIter sIter;
@@ -76103,13 +77196,23 @@ SQLITE_PRIVATE int sqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){
while( (pOp = opIterNext(&sIter))!=0 ){
int opcode = pOp->opcode;
if( opcode==OP_Destroy || opcode==OP_VUpdate || opcode==OP_VRename
+ || opcode==OP_VDestroy
+ || (opcode==OP_ParseSchema && pOp->p4.z==0)
|| ((opcode==OP_Halt || opcode==OP_HaltIfNull)
- && ((pOp->p1&0xff)==SQLITE_CONSTRAINT && pOp->p2==OE_Abort))
+ && ((pOp->p1)!=SQLITE_OK && pOp->p2==OE_Abort))
){
hasAbort = 1;
break;
}
if( opcode==OP_CreateBtree && pOp->p3==BTREE_INTKEY ) hasCreateTable = 1;
+ if( mayAbort ){
+ /* hasCreateIndex may also be set for some DELETE statements that use
+ ** OP_Clear. So this routine may end up returning true in the case
+ ** where a "DELETE FROM tbl" has a statement-journal but does not
+ ** require one. This is not so bad - it is an inefficiency, not a bug. */
+ if( opcode==OP_CreateBtree && pOp->p3==BTREE_BLOBKEY ) hasCreateIndex = 1;
+ if( opcode==OP_Clear ) hasCreateIndex = 1;
+ }
if( opcode==OP_InitCoroutine ) hasInitCoroutine = 1;
#ifndef SQLITE_OMIT_FOREIGN_KEY
if( opcode==OP_FkCounter && pOp->p1==0 && pOp->p2==1 ){
@@ -76125,7 +77228,8 @@ SQLITE_PRIVATE int sqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){
** true for this case to prevent the assert() in the callers frame
** from failing. */
return ( v->db->mallocFailed || hasAbort==mayAbort || hasFkCounter
- || (hasCreateTable && hasInitCoroutine) );
+ || (hasCreateTable && hasInitCoroutine) || hasCreateIndex
+ );
}
#endif /* SQLITE_DEBUG - the sqlite3AssertMayAbort() function */
@@ -76253,7 +77357,7 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
** non-jump opcodes less than SQLITE_MX_JUMP_CODE are guaranteed to
** have non-negative values for P2. */
assert( (sqlite3OpcodeProperty[pOp->opcode] & OPFLG_JUMP)!=0 );
- assert( ADDR(pOp->p2)nLabel );
+ assert( ADDR(pOp->p2)<-pParse->nLabel );
pOp->p2 = aLabel[ADDR(pOp->p2)];
}
break;
@@ -76292,7 +77396,7 @@ SQLITE_PRIVATE int sqlite3VdbeCurrentAddr(Vdbe *p){
*/
#if defined(SQLITE_DEBUG) && !defined(SQLITE_TEST_REALLOC_STRESS)
SQLITE_PRIVATE void sqlite3VdbeVerifyNoMallocRequired(Vdbe *p, int N){
- assert( p->nOp + N <= p->pParse->nOpAlloc );
+ assert( p->nOp + N <= p->nOpAlloc );
}
#endif
@@ -76364,7 +77468,7 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeAddOpList(
VdbeOp *pOut, *pFirst;
assert( nOp>0 );
assert( p->magic==VDBE_MAGIC_INIT );
- if( p->nOp + nOp > p->pParse->nOpAlloc && growOpArray(p, nOp) ){
+ if( p->nOp + nOp > p->nOpAlloc && growOpArray(p, nOp) ){
return 0;
}
pFirst = pOut = &p->aOp[p->nOp];
@@ -76410,7 +77514,7 @@ SQLITE_PRIVATE void sqlite3VdbeScanStatus(
LogEst nEst, /* Estimated number of output rows */
const char *zName /* Name of table or index being scanned */
){
- int nByte = (p->nScan+1) * sizeof(ScanStatus);
+ sqlite3_int64 nByte = (p->nScan+1) * sizeof(ScanStatus);
ScanStatus *aNew;
aNew = (ScanStatus*)sqlite3DbRealloc(p->db, p->aScan, nByte);
if( aNew ){
@@ -76430,16 +77534,16 @@ SQLITE_PRIVATE void sqlite3VdbeScanStatus(
** Change the value of the opcode, or P1, P2, P3, or P5 operands
** for a specific instruction.
*/
-SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe *p, u32 addr, u8 iNewOpcode){
+SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe *p, int addr, u8 iNewOpcode){
sqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode;
}
-SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe *p, u32 addr, int val){
+SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe *p, int addr, int val){
sqlite3VdbeGetOp(p,addr)->p1 = val;
}
-SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe *p, u32 addr, int val){
+SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe *p, int addr, int val){
sqlite3VdbeGetOp(p,addr)->p2 = val;
}
-SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe *p, u32 addr, int val){
+SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe *p, int addr, int val){
sqlite3VdbeGetOp(p,addr)->p3 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe *p, u16 p5){
@@ -76946,14 +78050,16 @@ static char *displayP4(Op *pOp, char *zTemp, int nTemp){
case P4_KEYINFO: {
int j;
KeyInfo *pKeyInfo = pOp->p4.pKeyInfo;
- assert( pKeyInfo->aSortOrder!=0 );
+ assert( pKeyInfo->aSortFlags!=0 );
sqlite3_str_appendf(&x, "k(%d", pKeyInfo->nKeyField);
for(j=0; jnKeyField; j++){
CollSeq *pColl = pKeyInfo->aColl[j];
const char *zColl = pColl ? pColl->zName : "";
if( strcmp(zColl, "BINARY")==0 ) zColl = "B";
- sqlite3_str_appendf(&x, ",%s%s",
- pKeyInfo->aSortOrder[j] ? "-" : "", zColl);
+ sqlite3_str_appendf(&x, ",%s%s%s",
+ (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_DESC) ? "-" : "",
+ (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_BIGNULL)? "N." : "",
+ zColl);
}
sqlite3_str_append(&x, ")", 1);
break;
@@ -76997,7 +78103,7 @@ static char *displayP4(Op *pOp, char *zTemp, int nTemp){
Mem *pMem = pOp->p4.pMem;
if( pMem->flags & MEM_Str ){
zP4 = pMem->z;
- }else if( pMem->flags & MEM_Int ){
+ }else if( pMem->flags & (MEM_Int|MEM_IntReal) ){
sqlite3_str_appendf(&x, "%lld", pMem->u.i);
}else if( pMem->flags & MEM_Real ){
sqlite3_str_appendf(&x, "%.16g", pMem->u.r);
@@ -77360,8 +78466,11 @@ SQLITE_PRIVATE int sqlite3VdbeList(
** pick up the appropriate opcode. */
int j;
i -= p->nOp;
+ assert( apSub!=0 );
+ assert( nSub>0 );
for(j=0; i>=apSub[j]->nOp; j++){
i -= apSub[j]->nOp;
+ assert( inOp || j+1aOp[i];
}
@@ -77531,9 +78640,9 @@ SQLITE_PRIVATE void sqlite3VdbeIOTraceSql(Vdbe *p){
** of a ReusableSpace object by the allocSpace() routine below.
*/
struct ReusableSpace {
- u8 *pSpace; /* Available memory */
- int nFree; /* Bytes of available memory */
- int nNeeded; /* Total bytes that could not be allocated */
+ u8 *pSpace; /* Available memory */
+ sqlite3_int64 nFree; /* Bytes of available memory */
+ sqlite3_int64 nNeeded; /* Total bytes that could not be allocated */
};
/* Try to allocate nByte bytes of 8-byte aligned bulk memory for pBuf
@@ -77553,7 +78662,7 @@ struct ReusableSpace {
static void *allocSpace(
struct ReusableSpace *p, /* Bulk memory available for allocation */
void *pBuf, /* Pointer to a prior allocation */
- int nByte /* Bytes of memory needed */
+ sqlite3_int64 nByte /* Bytes of memory needed */
){
assert( EIGHT_BYTE_ALIGNMENT(p->pSpace) );
if( pBuf==0 ){
@@ -77686,19 +78795,27 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady(
** the leftover memory at the end of the opcode array. This can significantly
** reduce the amount of memory held by a prepared statement.
*/
- do {
- x.nNeeded = 0;
- p->aMem = allocSpace(&x, p->aMem, nMem*sizeof(Mem));
- p->aVar = allocSpace(&x, p->aVar, nVar*sizeof(Mem));
- p->apArg = allocSpace(&x, p->apArg, nArg*sizeof(Mem*));
- p->apCsr = allocSpace(&x, p->apCsr, nCursor*sizeof(VdbeCursor*));
+ x.nNeeded = 0;
+ p->aMem = allocSpace(&x, 0, nMem*sizeof(Mem));
+ p->aVar = allocSpace(&x, 0, nVar*sizeof(Mem));
+ p->apArg = allocSpace(&x, 0, nArg*sizeof(Mem*));
+ p->apCsr = allocSpace(&x, 0, nCursor*sizeof(VdbeCursor*));
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
- p->anExec = allocSpace(&x, p->anExec, p->nOp*sizeof(i64));
+ p->anExec = allocSpace(&x, 0, p->nOp*sizeof(i64));
#endif
- if( x.nNeeded==0 ) break;
+ if( x.nNeeded ){
x.pSpace = p->pFree = sqlite3DbMallocRawNN(db, x.nNeeded);
x.nFree = x.nNeeded;
- }while( !db->mallocFailed );
+ if( !db->mallocFailed ){
+ p->aMem = allocSpace(&x, p->aMem, nMem*sizeof(Mem));
+ p->aVar = allocSpace(&x, p->aVar, nVar*sizeof(Mem));
+ p->apArg = allocSpace(&x, p->apArg, nArg*sizeof(Mem*));
+ p->apCsr = allocSpace(&x, p->apCsr, nCursor*sizeof(VdbeCursor*));
+#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
+ p->anExec = allocSpace(&x, p->anExec, p->nOp*sizeof(i64));
+#endif
+ }
+ }
p->pVList = pParse->pVList;
pParse->pVList = 0;
@@ -78351,7 +79468,7 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){
}
/* Check for immediate foreign key violations. */
- if( p->rc==SQLITE_OK ){
+ if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && !isSpecialError) ){
sqlite3VdbeCheckFk(p, 0);
}
@@ -78390,7 +79507,7 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){
}else{
db->nDeferredCons = 0;
db->nDeferredImmCons = 0;
- db->flags &= ~SQLITE_DeferFKs;
+ db->flags &= ~(u64)SQLITE_DeferFKs;
sqlite3CommitInternalChanges(db);
}
}else{
@@ -78703,6 +79820,16 @@ SQLITE_PRIVATE void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){
vdbeFreeOpArray(db, p->aOp, p->nOp);
sqlite3DbFree(db, p->aColName);
sqlite3DbFree(db, p->zSql);
+#ifdef SQLITE_ENABLE_NORMALIZE
+ sqlite3DbFree(db, p->zNormSql);
+ {
+ DblquoteStr *pThis, *pNext;
+ for(pThis=p->pDblStr; pThis; pThis=pNext){
+ pNext = pThis->pNextStr;
+ sqlite3DbFree(db, pThis);
+ }
+ }
+#endif
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
{
int i;
@@ -78865,8 +79992,17 @@ SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor **pp, int *piCol){
** of SQLite will not understand those serial types.
*/
+#if 0 /* Inlined into the OP_MakeRecord opcode */
/*
** Return the serial-type for the value stored in pMem.
+**
+** This routine might convert a large MEM_IntReal value into MEM_Real.
+**
+** 2019-07-11: The primary user of this subroutine was the OP_MakeRecord
+** opcode in the byte-code engine. But by moving this routine in-line, we
+** can omit some redundant tests and make that opcode a lot faster. So
+** this routine is now only used by the STAT3 logic and STAT3 support has
+** ended. The code is kept here for historical reference only.
*/
SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
int flags = pMem->flags;
@@ -78877,11 +80013,13 @@ SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
*pLen = 0;
return 0;
}
- if( flags&MEM_Int ){
+ if( flags&(MEM_Int|MEM_IntReal) ){
/* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
# define MAX_6BYTE ((((i64)0x00008000)<<32)-1)
i64 i = pMem->u.i;
u64 u;
+ testcase( flags & MEM_Int );
+ testcase( flags & MEM_IntReal );
if( i<0 ){
u = ~i;
}else{
@@ -78901,6 +80039,15 @@ SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
if( u<=2147483647 ){ *pLen = 4; return 4; }
if( u<=MAX_6BYTE ){ *pLen = 6; return 5; }
*pLen = 8;
+ if( flags&MEM_IntReal ){
+ /* If the value is IntReal and is going to take up 8 bytes to store
+ ** as an integer, then we might as well make it an 8-byte floating
+ ** point value */
+ pMem->u.r = (double)pMem->u.i;
+ pMem->flags &= ~MEM_IntReal;
+ pMem->flags |= MEM_Real;
+ return 7;
+ }
return 6;
}
if( flags&MEM_Real ){
@@ -78916,6 +80063,7 @@ SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
*pLen = n;
return ((n*2) + 12 + ((flags&MEM_Str)!=0));
}
+#endif /* inlined into OP_MakeRecord */
/*
** The sizes for serial types less than 128
@@ -79074,7 +80222,7 @@ SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(u8 *buf, Mem *pMem, u32 serial_type){
** routine so that in most cases the overhead of moving the stack pointer
** is avoided.
*/
-static u32 SQLITE_NOINLINE serialGet(
+static u32 serialGet(
const unsigned char *buf, /* Buffer to deserialize from */
u32 serial_type, /* Serial type to deserialize */
Mem *pMem /* Memory cell to write value into */
@@ -79106,7 +80254,7 @@ static u32 SQLITE_NOINLINE serialGet(
assert( sizeof(x)==8 && sizeof(pMem->u.r)==8 );
swapMixedEndianFloat(x);
memcpy(&pMem->u.r, &x, sizeof(x));
- pMem->flags = sqlite3IsNaN(pMem->u.r) ? MEM_Null : MEM_Real;
+ pMem->flags = IsNaN(x) ? MEM_Null : MEM_Real;
}
return 8;
}
@@ -79224,7 +80372,7 @@ SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord(
p = (UnpackedRecord *)sqlite3DbMallocRaw(pKeyInfo->db, nByte);
if( !p ) return 0;
p->aMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))];
- assert( pKeyInfo->aSortOrder!=0 );
+ assert( pKeyInfo->aSortFlags!=0 );
p->pKeyInfo = pKeyInfo;
p->nField = pKeyInfo->nKeyField + 1;
return p;
@@ -79242,7 +80390,7 @@ SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(
UnpackedRecord *p /* Populate this structure before returning. */
){
const unsigned char *aKey = (const unsigned char *)pKey;
- int d;
+ u32 d;
u32 idx; /* Offset in aKey[] to read from */
u16 u; /* Unsigned loop counter */
u32 szHdr;
@@ -79253,7 +80401,7 @@ SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(
idx = getVarint32(aKey, szHdr);
d = szHdr;
u = 0;
- while( idx=p->nField ) break;
}
+ if( d>(u32)nKey && u ){
+ assert( CORRUPT_DB );
+ /* In a corrupt record entry, the last pMem might have been set up using
+ ** uninitialized memory. Overwrite its value with NULL, to prevent
+ ** warnings from MSAN. */
+ sqlite3VdbeMemSetNull(pMem-1);
+ }
assert( u<=pKeyInfo->nKeyField + 1 );
p->nField = u;
}
@@ -79316,7 +80471,7 @@ static int vdbeRecordCompareDebug(
if( szHdr1>98307 ) return SQLITE_CORRUPT;
d1 = szHdr1;
assert( pKeyInfo->nAllField>=pPKey2->nField || CORRUPT_DB );
- assert( pKeyInfo->aSortOrder!=0 );
+ assert( pKeyInfo->aSortFlags!=0 );
assert( pKeyInfo->nKeyField>0 );
assert( idx1<=szHdr1 || CORRUPT_DB );
do{
@@ -79331,8 +80486,8 @@ static int vdbeRecordCompareDebug(
** Use that approximation to avoid the more expensive call to
** sqlite3VdbeSerialTypeLen() in the common case.
*/
- if( d1+serial_type1+2>(u32)nKey1
- && d1+sqlite3VdbeSerialTypeLen(serial_type1)>(u32)nKey1
+ if( d1+(u64)serial_type1+2>(u64)nKey1
+ && d1+(u64)sqlite3VdbeSerialTypeLen(serial_type1)>(u64)nKey1
){
break;
}
@@ -79343,10 +80498,16 @@ static int vdbeRecordCompareDebug(
/* Do the comparison
*/
- rc = sqlite3MemCompare(&mem1, &pPKey2->aMem[i], pKeyInfo->aColl[i]);
+ rc = sqlite3MemCompare(&mem1, &pPKey2->aMem[i],
+ pKeyInfo->nAllField>i ? pKeyInfo->aColl[i] : 0);
if( rc!=0 ){
assert( mem1.szMalloc==0 ); /* See comment below */
- if( pKeyInfo->aSortOrder[i] ){
+ if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL)
+ && ((mem1.flags & MEM_Null) || (pPKey2->aMem[i].flags & MEM_Null))
+ ){
+ rc = -rc;
+ }
+ if( pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC ){
rc = -rc; /* Invert the result for DESC sort order. */
}
goto debugCompareEnd;
@@ -79548,8 +80709,13 @@ SQLITE_PRIVATE int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const C
/* At least one of the two values is a number
*/
- if( combined_flags&(MEM_Int|MEM_Real) ){
- if( (f1 & f2 & MEM_Int)!=0 ){
+ if( combined_flags&(MEM_Int|MEM_Real|MEM_IntReal) ){
+ testcase( combined_flags & MEM_Int );
+ testcase( combined_flags & MEM_Real );
+ testcase( combined_flags & MEM_IntReal );
+ if( (f1 & f2 & (MEM_Int|MEM_IntReal))!=0 ){
+ testcase( f1 & f2 & MEM_Int );
+ testcase( f1 & f2 & MEM_IntReal );
if( pMem1->u.i < pMem2->u.i ) return -1;
if( pMem1->u.i > pMem2->u.i ) return +1;
return 0;
@@ -79559,15 +80725,23 @@ SQLITE_PRIVATE int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const C
if( pMem1->u.r > pMem2->u.r ) return +1;
return 0;
}
- if( (f1&MEM_Int)!=0 ){
+ if( (f1&(MEM_Int|MEM_IntReal))!=0 ){
+ testcase( f1 & MEM_Int );
+ testcase( f1 & MEM_IntReal );
if( (f2&MEM_Real)!=0 ){
return sqlite3IntFloatCompare(pMem1->u.i, pMem2->u.r);
+ }else if( (f2&(MEM_Int|MEM_IntReal))!=0 ){
+ if( pMem1->u.i < pMem2->u.i ) return -1;
+ if( pMem1->u.i > pMem2->u.i ) return +1;
+ return 0;
}else{
return -1;
}
}
if( (f1&MEM_Real)!=0 ){
- if( (f2&MEM_Int)!=0 ){
+ if( (f2&(MEM_Int|MEM_IntReal))!=0 ){
+ testcase( f2 & MEM_Int );
+ testcase( f2 & MEM_IntReal );
return -sqlite3IntFloatCompare(pMem2->u.i, pMem1->u.r);
}else{
return -1;
@@ -79699,24 +80873,26 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip(
}else{
idx1 = getVarint32(aKey1, szHdr1);
d1 = szHdr1;
- if( d1>(unsigned)nKey1 ){
- pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
- return 0; /* Corruption */
- }
i = 0;
}
+ if( d1>(unsigned)nKey1 ){
+ pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
+ return 0; /* Corruption */
+ }
VVA_ONLY( mem1.szMalloc = 0; ) /* Only needed by assert() statements */
assert( pPKey2->pKeyInfo->nAllField>=pPKey2->nField
|| CORRUPT_DB );
- assert( pPKey2->pKeyInfo->aSortOrder!=0 );
+ assert( pPKey2->pKeyInfo->aSortFlags!=0 );
assert( pPKey2->pKeyInfo->nKeyField>0 );
assert( idx1<=szHdr1 || CORRUPT_DB );
do{
u32 serial_type;
/* RHS is an integer */
- if( pRhs->flags & MEM_Int ){
+ if( pRhs->flags & (MEM_Int|MEM_IntReal) ){
+ testcase( pRhs->flags & MEM_Int );
+ testcase( pRhs->flags & MEM_IntReal );
serial_type = aKey1[idx1];
testcase( serial_type==12 );
if( serial_type>=10 ){
@@ -79774,10 +80950,12 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip(
mem1.n = (serial_type - 12) / 2;
testcase( (d1+mem1.n)==(unsigned)nKey1 );
testcase( (d1+mem1.n+1)==(unsigned)nKey1 );
- if( (d1+mem1.n) > (unsigned)nKey1 ){
+ if( (d1+mem1.n) > (unsigned)nKey1
+ || (pKeyInfo = pPKey2->pKeyInfo)->nAllField<=i
+ ){
pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
return 0; /* Corruption */
- }else if( (pKeyInfo = pPKey2->pKeyInfo)->aColl[i] ){
+ }else if( pKeyInfo->aColl[i] ){
mem1.enc = pKeyInfo->enc;
mem1.db = pKeyInfo->db;
mem1.flags = MEM_Str;
@@ -79828,8 +81006,14 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip(
}
if( rc!=0 ){
- if( pPKey2->pKeyInfo->aSortOrder[i] ){
- rc = -rc;
+ int sortFlags = pPKey2->pKeyInfo->aSortFlags[i];
+ if( sortFlags ){
+ if( (sortFlags & KEYINFO_ORDER_BIGNULL)==0
+ || ((sortFlags & KEYINFO_ORDER_DESC)
+ !=(serial_type==0 || (pRhs->flags&MEM_Null)))
+ ){
+ rc = -rc;
+ }
}
assert( vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, rc) );
assert( mem1.szMalloc==0 ); /* See comment below */
@@ -79997,7 +81181,11 @@ static int vdbeRecordCompareString(
nCmp = MIN( pPKey2->aMem[0].n, nStr );
res = memcmp(&aKey1[szHdr], pPKey2->aMem[0].z, nCmp);
- if( res==0 ){
+ if( res>0 ){
+ res = pPKey2->r2;
+ }else if( res<0 ){
+ res = pPKey2->r1;
+ }else{
res = nStr - pPKey2->aMem[0].n;
if( res==0 ){
if( pPKey2->nField>1 ){
@@ -80011,10 +81199,6 @@ static int vdbeRecordCompareString(
}else{
res = pPKey2->r1;
}
- }else if( res>0 ){
- res = pPKey2->r2;
- }else{
- res = pPKey2->r1;
}
}
@@ -80046,7 +81230,10 @@ SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord *p){
** header size is (12*5 + 1 + 1) bytes. */
if( p->pKeyInfo->nAllField<=13 ){
int flags = p->aMem[0].flags;
- if( p->pKeyInfo->aSortOrder[0] ){
+ if( p->pKeyInfo->aSortFlags[0] ){
+ if( p->pKeyInfo->aSortFlags[0] & KEYINFO_ORDER_BIGNULL ){
+ return sqlite3VdbeRecordCompare;
+ }
p->r1 = 1;
p->r2 = -1;
}else{
@@ -80059,7 +81246,9 @@ SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord *p){
testcase( flags & MEM_Real );
testcase( flags & MEM_Null );
testcase( flags & MEM_Blob );
- if( (flags & (MEM_Real|MEM_Null|MEM_Blob))==0 && p->pKeyInfo->aColl[0]==0 ){
+ if( (flags & (MEM_Real|MEM_IntReal|MEM_Null|MEM_Blob))==0
+ && p->pKeyInfo->aColl[0]==0
+ ){
assert( flags & MEM_Str );
return vdbeRecordCompareString;
}
@@ -80104,7 +81293,9 @@ SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3 *db, BtCursor *pCur, i64 *rowid){
(void)getVarint32((u8*)m.z, szHdr);
testcase( szHdr==3 );
testcase( szHdr==m.n );
- if( unlikely(szHdr<3 || (int)szHdr>m.n) ){
+ testcase( szHdr>0x7fffffff );
+ assert( m.n>=0 );
+ if( unlikely(szHdr<3 || szHdr>(unsigned)m.n) ){
goto idx_rowid_corruption;
}
@@ -80291,7 +81482,7 @@ SQLITE_PRIVATE void sqlite3VdbeSetVarmask(Vdbe *v, int iVar){
** features such as 'now'.
*/
SQLITE_PRIVATE int sqlite3NotPureFunc(sqlite3_context *pCtx){
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( pCtx->pVdbe==0 ) return 1;
#endif
if( pCtx->pVdbe->aOp[pCtx->iOp].opcode==OP_PureFunc ){
@@ -80388,7 +81579,7 @@ SQLITE_PRIVATE void sqlite3VdbePreUpdateHook(
preupdate.keyinfo.db = db;
preupdate.keyinfo.enc = ENC(db);
preupdate.keyinfo.nKeyField = pTab->nCol;
- preupdate.keyinfo.aSortOrder = (u8*)&fakeSortOrder;
+ preupdate.keyinfo.aSortFlags = (u8*)&fakeSortOrder;
preupdate.iKey1 = iKey1;
preupdate.iKey2 = iKey2;
preupdate.pTab = pTab;
@@ -80475,14 +81666,16 @@ static SQLITE_NOINLINE void invokeProfileCallback(sqlite3 *db, Vdbe *p){
sqlite3_int64 iNow;
sqlite3_int64 iElapse;
assert( p->startTime>0 );
- assert( db->xProfile!=0 || (db->mTrace & SQLITE_TRACE_PROFILE)!=0 );
+ assert( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0 );
assert( db->init.busy==0 );
assert( p->zSql!=0 );
sqlite3OsCurrentTimeInt64(db->pVfs, &iNow);
iElapse = (iNow - p->startTime)*1000000;
+#ifndef SQLITE_OMIT_DEPRECATED
if( db->xProfile ){
db->xProfile(db->pProfileArg, p->zSql, iElapse);
}
+#endif
if( db->mTrace & SQLITE_TRACE_PROFILE ){
db->xTrace(SQLITE_TRACE_PROFILE, db->pTraceArg, p, (void*)&iElapse);
}
@@ -80645,39 +81838,86 @@ SQLITE_API const void *sqlite3_value_text16le(sqlite3_value *pVal){
*/
SQLITE_API int sqlite3_value_type(sqlite3_value* pVal){
static const u8 aType[] = {
- SQLITE_BLOB, /* 0x00 */
- SQLITE_NULL, /* 0x01 */
- SQLITE_TEXT, /* 0x02 */
- SQLITE_NULL, /* 0x03 */
- SQLITE_INTEGER, /* 0x04 */
- SQLITE_NULL, /* 0x05 */
- SQLITE_INTEGER, /* 0x06 */
- SQLITE_NULL, /* 0x07 */
- SQLITE_FLOAT, /* 0x08 */
- SQLITE_NULL, /* 0x09 */
- SQLITE_FLOAT, /* 0x0a */
- SQLITE_NULL, /* 0x0b */
- SQLITE_INTEGER, /* 0x0c */
- SQLITE_NULL, /* 0x0d */
- SQLITE_INTEGER, /* 0x0e */
- SQLITE_NULL, /* 0x0f */
- SQLITE_BLOB, /* 0x10 */
- SQLITE_NULL, /* 0x11 */
- SQLITE_TEXT, /* 0x12 */
- SQLITE_NULL, /* 0x13 */
- SQLITE_INTEGER, /* 0x14 */
- SQLITE_NULL, /* 0x15 */
- SQLITE_INTEGER, /* 0x16 */
- SQLITE_NULL, /* 0x17 */
- SQLITE_FLOAT, /* 0x18 */
- SQLITE_NULL, /* 0x19 */
- SQLITE_FLOAT, /* 0x1a */
- SQLITE_NULL, /* 0x1b */
- SQLITE_INTEGER, /* 0x1c */
- SQLITE_NULL, /* 0x1d */
- SQLITE_INTEGER, /* 0x1e */
- SQLITE_NULL, /* 0x1f */
+ SQLITE_BLOB, /* 0x00 (not possible) */
+ SQLITE_NULL, /* 0x01 NULL */
+ SQLITE_TEXT, /* 0x02 TEXT */
+ SQLITE_NULL, /* 0x03 (not possible) */
+ SQLITE_INTEGER, /* 0x04 INTEGER */
+ SQLITE_NULL, /* 0x05 (not possible) */
+ SQLITE_INTEGER, /* 0x06 INTEGER + TEXT */
+ SQLITE_NULL, /* 0x07 (not possible) */
+ SQLITE_FLOAT, /* 0x08 FLOAT */
+ SQLITE_NULL, /* 0x09 (not possible) */
+ SQLITE_FLOAT, /* 0x0a FLOAT + TEXT */
+ SQLITE_NULL, /* 0x0b (not possible) */
+ SQLITE_INTEGER, /* 0x0c (not possible) */
+ SQLITE_NULL, /* 0x0d (not possible) */
+ SQLITE_INTEGER, /* 0x0e (not possible) */
+ SQLITE_NULL, /* 0x0f (not possible) */
+ SQLITE_BLOB, /* 0x10 BLOB */
+ SQLITE_NULL, /* 0x11 (not possible) */
+ SQLITE_TEXT, /* 0x12 (not possible) */
+ SQLITE_NULL, /* 0x13 (not possible) */
+ SQLITE_INTEGER, /* 0x14 INTEGER + BLOB */
+ SQLITE_NULL, /* 0x15 (not possible) */
+ SQLITE_INTEGER, /* 0x16 (not possible) */
+ SQLITE_NULL, /* 0x17 (not possible) */
+ SQLITE_FLOAT, /* 0x18 FLOAT + BLOB */
+ SQLITE_NULL, /* 0x19 (not possible) */
+ SQLITE_FLOAT, /* 0x1a (not possible) */
+ SQLITE_NULL, /* 0x1b (not possible) */
+ SQLITE_INTEGER, /* 0x1c (not possible) */
+ SQLITE_NULL, /* 0x1d (not possible) */
+ SQLITE_INTEGER, /* 0x1e (not possible) */
+ SQLITE_NULL, /* 0x1f (not possible) */
+ SQLITE_FLOAT, /* 0x20 INTREAL */
+ SQLITE_NULL, /* 0x21 (not possible) */
+ SQLITE_TEXT, /* 0x22 INTREAL + TEXT */
+ SQLITE_NULL, /* 0x23 (not possible) */
+ SQLITE_FLOAT, /* 0x24 (not possible) */
+ SQLITE_NULL, /* 0x25 (not possible) */
+ SQLITE_FLOAT, /* 0x26 (not possible) */
+ SQLITE_NULL, /* 0x27 (not possible) */
+ SQLITE_FLOAT, /* 0x28 (not possible) */
+ SQLITE_NULL, /* 0x29 (not possible) */
+ SQLITE_FLOAT, /* 0x2a (not possible) */
+ SQLITE_NULL, /* 0x2b (not possible) */
+ SQLITE_FLOAT, /* 0x2c (not possible) */
+ SQLITE_NULL, /* 0x2d (not possible) */
+ SQLITE_FLOAT, /* 0x2e (not possible) */
+ SQLITE_NULL, /* 0x2f (not possible) */
+ SQLITE_BLOB, /* 0x30 (not possible) */
+ SQLITE_NULL, /* 0x31 (not possible) */
+ SQLITE_TEXT, /* 0x32 (not possible) */
+ SQLITE_NULL, /* 0x33 (not possible) */
+ SQLITE_FLOAT, /* 0x34 (not possible) */
+ SQLITE_NULL, /* 0x35 (not possible) */
+ SQLITE_FLOAT, /* 0x36 (not possible) */
+ SQLITE_NULL, /* 0x37 (not possible) */
+ SQLITE_FLOAT, /* 0x38 (not possible) */
+ SQLITE_NULL, /* 0x39 (not possible) */
+ SQLITE_FLOAT, /* 0x3a (not possible) */
+ SQLITE_NULL, /* 0x3b (not possible) */
+ SQLITE_FLOAT, /* 0x3c (not possible) */
+ SQLITE_NULL, /* 0x3d (not possible) */
+ SQLITE_FLOAT, /* 0x3e (not possible) */
+ SQLITE_NULL, /* 0x3f (not possible) */
};
+#ifdef SQLITE_DEBUG
+ {
+ int eType = SQLITE_BLOB;
+ if( pVal->flags & MEM_Null ){
+ eType = SQLITE_NULL;
+ }else if( pVal->flags & (MEM_Real|MEM_IntReal) ){
+ eType = SQLITE_FLOAT;
+ }else if( pVal->flags & MEM_Int ){
+ eType = SQLITE_INTEGER;
+ }else if( pVal->flags & MEM_Str ){
+ eType = SQLITE_TEXT;
+ }
+ assert( eType == aType[pVal->flags&MEM_AffMask] );
+ }
+#endif
return aType[pVal->flags&MEM_AffMask];
}
@@ -80686,6 +81926,11 @@ SQLITE_API int sqlite3_value_nochange(sqlite3_value *pVal){
return (pVal->flags&(MEM_Null|MEM_Zero))==(MEM_Null|MEM_Zero);
}
+/* Return true if a parameter value originated from an sqlite3_bind() */
+SQLITE_API int sqlite3_value_frombind(sqlite3_value *pVal){
+ return (pVal->flags&MEM_FromBind)!=0;
+}
+
/* Make a copy of an sqlite3_value object
*/
SQLITE_API sqlite3_value *sqlite3_value_dup(const sqlite3_value *pOrig){
@@ -80922,6 +82167,21 @@ SQLITE_API void sqlite3_result_error_nomem(sqlite3_context *pCtx){
sqlite3OomFault(pCtx->pOut->db);
}
+#ifndef SQLITE_UNTESTABLE
+/* Force the INT64 value currently stored as the result to be
+** a MEM_IntReal value. See the SQLITE_TESTCTRL_RESULT_INTREAL
+** test-control.
+*/
+SQLITE_PRIVATE void sqlite3ResultIntReal(sqlite3_context *pCtx){
+ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
+ if( pCtx->pOut->flags & MEM_Int ){
+ pCtx->pOut->flags &= ~MEM_Int;
+ pCtx->pOut->flags |= MEM_IntReal;
+ }
+}
+#endif
+
+
/*
** This function is called after a transaction has been committed. It
** invokes callbacks registered with sqlite3_wal_hook() as required.
@@ -80996,7 +82256,7 @@ static int sqlite3Step(Vdbe *p){
return SQLITE_NOMEM_BKPT;
}
- if( p->pc<=0 && p->expired ){
+ if( p->pc<0 && p->expired ){
p->rc = SQLITE_SCHEMA;
rc = SQLITE_ERROR;
goto end_of_step;
@@ -81015,7 +82275,7 @@ static int sqlite3Step(Vdbe *p){
);
#ifndef SQLITE_OMIT_TRACE
- if( (db->xProfile || (db->mTrace & SQLITE_TRACE_PROFILE)!=0)
+ if( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0
&& !db->init.busy && p->zSql ){
sqlite3OsCurrentTimeInt64(db->pVfs, &p->startTime);
}else{
@@ -81042,16 +82302,18 @@ static int sqlite3Step(Vdbe *p){
db->nVdbeExec--;
}
+ if( rc!=SQLITE_ROW ){
#ifndef SQLITE_OMIT_TRACE
- /* If the statement completed successfully, invoke the profile callback */
- if( rc!=SQLITE_ROW ) checkProfileCallback(db, p);
+ /* If the statement completed successfully, invoke the profile callback */
+ checkProfileCallback(db, p);
#endif
- if( rc==SQLITE_DONE && db->autoCommit ){
- assert( p->rc==SQLITE_OK );
- p->rc = doWalCallbacks(db);
- if( p->rc!=SQLITE_OK ){
- rc = SQLITE_ERROR;
+ if( rc==SQLITE_DONE && db->autoCommit ){
+ assert( p->rc==SQLITE_OK );
+ p->rc = doWalCallbacks(db);
+ if( p->rc!=SQLITE_OK ){
+ rc = SQLITE_ERROR;
+ }
}
}
@@ -81071,9 +82333,9 @@ end_of_step:
|| (rc&0xff)==SQLITE_BUSY || rc==SQLITE_MISUSE
);
assert( (p->rc!=SQLITE_ROW && p->rc!=SQLITE_DONE) || p->rc==p->rcApp );
- if( (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0
- && rc!=SQLITE_ROW
- && rc!=SQLITE_DONE
+ if( rc!=SQLITE_ROW
+ && rc!=SQLITE_DONE
+ && (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0
){
/* If this statement was prepared using saved SQL and an
** error has occurred, then return the error code in p->rc to the
@@ -81186,7 +82448,7 @@ SQLITE_API int sqlite3_vtab_nochange(sqlite3_context *p){
*/
SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context *p){
int rc;
-#ifndef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifndef SQLITE_ENABLE_STAT4
sqlite3_int64 *piTime = &p->pVdbe->iCurrentTime;
assert( p->pVdbe!=0 );
#else
@@ -81251,7 +82513,7 @@ SQLITE_API void *sqlite3_get_auxdata(sqlite3_context *pCtx, int iArg){
AuxData *pAuxData;
assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
-#if SQLITE_ENABLE_STAT3_OR_STAT4
+#if SQLITE_ENABLE_STAT4
if( pCtx->pVdbe==0 ) return 0;
#else
assert( pCtx->pVdbe!=0 );
@@ -81285,7 +82547,7 @@ SQLITE_API void sqlite3_set_auxdata(
Vdbe *pVdbe = pCtx->pVdbe;
assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( pVdbe==0 ) goto failed;
#else
assert( pVdbe!=0 );
@@ -81529,10 +82791,10 @@ SQLITE_API int sqlite3_column_type(sqlite3_stmt *pStmt, int i){
** or a constant) then useTypes 2, 3, and 4 return NULL.
*/
static const void *columnName(
- sqlite3_stmt *pStmt,
- int N,
- const void *(*xFunc)(Mem*),
- int useType
+ sqlite3_stmt *pStmt, /* The statement */
+ int N, /* Which column to get the name for */
+ int useUtf16, /* True to return the name as UTF16 */
+ int useType /* What type of name */
){
const void *ret;
Vdbe *p;
@@ -81553,8 +82815,15 @@ static const void *columnName(
N += useType*n;
sqlite3_mutex_enter(db->mutex);
assert( db->mallocFailed==0 );
- ret = xFunc(&p->aColName[N]);
- /* A malloc may have failed inside of the xFunc() call. If this
+#ifndef SQLITE_OMIT_UTF16
+ if( useUtf16 ){
+ ret = sqlite3_value_text16((sqlite3_value*)&p->aColName[N]);
+ }else
+#endif
+ {
+ ret = sqlite3_value_text((sqlite3_value*)&p->aColName[N]);
+ }
+ /* A malloc may have failed inside of the _text() call. If this
** is the case, clear the mallocFailed flag and return NULL.
*/
if( db->mallocFailed ){
@@ -81571,13 +82840,11 @@ static const void *columnName(
** statement pStmt.
*/
SQLITE_API const char *sqlite3_column_name(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_NAME);
+ return columnName(pStmt, N, 0, COLNAME_NAME);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *sqlite3_column_name16(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_NAME);
+ return columnName(pStmt, N, 1, COLNAME_NAME);
}
#endif
@@ -81596,13 +82863,11 @@ SQLITE_API const void *sqlite3_column_name16(sqlite3_stmt *pStmt, int N){
** of the result set of SQL statement pStmt.
*/
SQLITE_API const char *sqlite3_column_decltype(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DECLTYPE);
+ return columnName(pStmt, N, 0, COLNAME_DECLTYPE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *sqlite3_column_decltype16(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DECLTYPE);
+ return columnName(pStmt, N, 1, COLNAME_DECLTYPE);
}
#endif /* SQLITE_OMIT_UTF16 */
#endif /* SQLITE_OMIT_DECLTYPE */
@@ -81614,13 +82879,11 @@ SQLITE_API const void *sqlite3_column_decltype16(sqlite3_stmt *pStmt, int N){
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *sqlite3_column_database_name(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DATABASE);
+ return columnName(pStmt, N, 0, COLNAME_DATABASE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *sqlite3_column_database_name16(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DATABASE);
+ return columnName(pStmt, N, 1, COLNAME_DATABASE);
}
#endif /* SQLITE_OMIT_UTF16 */
@@ -81630,13 +82893,11 @@ SQLITE_API const void *sqlite3_column_database_name16(sqlite3_stmt *pStmt, int N
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *sqlite3_column_table_name(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_TABLE);
+ return columnName(pStmt, N, 0, COLNAME_TABLE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *sqlite3_column_table_name16(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_TABLE);
+ return columnName(pStmt, N, 1, COLNAME_TABLE);
}
#endif /* SQLITE_OMIT_UTF16 */
@@ -81646,13 +82907,11 @@ SQLITE_API const void *sqlite3_column_table_name16(sqlite3_stmt *pStmt, int N){
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *sqlite3_column_origin_name(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_COLUMN);
+ return columnName(pStmt, N, 0, COLNAME_COLUMN);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *sqlite3_column_origin_name16(sqlite3_stmt *pStmt, int N){
- return columnName(
- pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_COLUMN);
+ return columnName(pStmt, N, 1, COLNAME_COLUMN);
}
#endif /* SQLITE_OMIT_UTF16 */
#endif /* SQLITE_ENABLE_COLUMN_METADATA */
@@ -81695,7 +82954,7 @@ static int vdbeUnbind(Vdbe *p, int i){
pVar = &p->aVar[i];
sqlite3VdbeMemRelease(pVar);
pVar->flags = MEM_Null;
- sqlite3Error(p->db, SQLITE_OK);
+ p->db->errCode = SQLITE_OK;
/* If the bit corresponding to this variable in Vdbe.expmask is set, then
** binding a new value to this variable invalidates the current query plan.
@@ -82020,6 +83279,14 @@ SQLITE_API int sqlite3_stmt_readonly(sqlite3_stmt *pStmt){
return pStmt ? ((Vdbe*)pStmt)->readOnly : 1;
}
+/*
+** Return 1 if the statement is an EXPLAIN and return 2 if the
+** statement is an EXPLAIN QUERY PLAN
+*/
+SQLITE_API int sqlite3_stmt_isexplain(sqlite3_stmt *pStmt){
+ return pStmt ? ((Vdbe*)pStmt)->explain : 0;
+}
+
/*
** Return true if the prepared statement is in need of being reset.
*/
@@ -82115,6 +83382,22 @@ SQLITE_API char *sqlite3_expanded_sql(sqlite3_stmt *pStmt){
#endif
}
+#ifdef SQLITE_ENABLE_NORMALIZE
+/*
+** Return the normalized SQL associated with a prepared statement.
+*/
+SQLITE_API const char *sqlite3_normalized_sql(sqlite3_stmt *pStmt){
+ Vdbe *p = (Vdbe *)pStmt;
+ if( p==0 ) return 0;
+ if( p->zNormSql==0 && ALWAYS(p->zSql!=0) ){
+ sqlite3_mutex_enter(p->db->mutex);
+ p->zNormSql = sqlite3Normalize(p, p->zSql);
+ sqlite3_mutex_leave(p->db->mutex);
+ }
+ return p->zNormSql;
+}
+#endif /* SQLITE_ENABLE_NORMALIZE */
+
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** Allocate and populate an UnpackedRecord structure based on the serialized
@@ -82185,7 +83468,9 @@ SQLITE_API int sqlite3_preupdate_old(sqlite3 *db, int iIdx, sqlite3_value **ppVa
}else if( iIdx>=p->pUnpacked->nField ){
*ppValue = (sqlite3_value *)columnNullValue();
}else if( p->pTab->aCol[iIdx].affinity==SQLITE_AFF_REAL ){
- if( pMem->flags & MEM_Int ){
+ if( pMem->flags & (MEM_Int|MEM_IntReal) ){
+ testcase( pMem->flags & MEM_Int );
+ testcase( pMem->flags & MEM_IntReal );
sqlite3VdbeMemRealify(pMem);
}
}
@@ -82504,7 +83789,7 @@ SQLITE_PRIVATE char *sqlite3VdbeExpandSql(
pVar = &p->aVar[idx-1];
if( pVar->flags & MEM_Null ){
sqlite3_str_append(&out, "NULL", 4);
- }else if( pVar->flags & MEM_Int ){
+ }else if( pVar->flags & (MEM_Int|MEM_IntReal) ){
sqlite3_str_appendf(&out, "%lld", pVar->u.i);
}else if( pVar->flags & MEM_Real ){
sqlite3_str_appendf(&out, "%!.15g", pVar->u.r);
@@ -82693,12 +83978,20 @@ SQLITE_API int sqlite3_found_count = 0;
** feature is used for test suite validation only and does not appear an
** production builds.
**
-** M is an integer between 2 and 4. 2 indicates a ordinary two-way
-** branch (I=0 means fall through and I=1 means taken). 3 indicates
-** a 3-way branch where the third way is when one of the operands is
-** NULL. 4 indicates the OP_Jump instruction which has three destinations
-** depending on whether the first operand is less than, equal to, or greater
-** than the second.
+** M is the type of branch. I is the direction taken for this instance of
+** the branch.
+**
+** M: 2 - two-way branch (I=0: fall-thru 1: jump )
+** 3 - two-way + NULL (I=0: fall-thru 1: jump 2: NULL )
+** 4 - OP_Jump (I=0: jump p1 1: jump p2 2: jump p3)
+**
+** In other words, if M is 2, then I is either 0 (for fall-through) or
+** 1 (for when the branch is taken). If M is 3, the I is 0 for an
+** ordinary fall-through, I is 1 if the branch was taken, and I is 2
+** if the result of comparison is NULL. For M=3, I=2 the jump may or
+** may not be taken, depending on the SQLITE_JUMPIFNULL flags in p5.
+** When M is 4, that means that an OP_Jump is being run. I is 0, 1, or 2
+** depending on if the operands are less than, equal, or greater than.
**
** iSrcLine is the source code line (from the __LINE__ macro) that
** generated the VDBE instruction combined with flag bits. The source
@@ -82709,9 +84002,9 @@ SQLITE_API int sqlite3_found_count = 0;
** alternate branch are never taken. If a branch is never taken then
** flags should be 0x06 since only the fall-through approach is allowed.
**
-** Bit 0x04 of the flags indicates an OP_Jump opcode that is only
+** Bit 0x08 of the flags indicates an OP_Jump opcode that is only
** interested in equal or not-equal. In other words, I==0 and I==2
-** should be treated the same.
+** should be treated as equivalent
**
** Since only a line number is retained, not the filename, this macro
** only works for amalgamation builds. But that is ok, since these macros
@@ -82735,6 +84028,18 @@ SQLITE_API int sqlite3_found_count = 0;
mNever = iSrcLine >> 24;
assert( (I & mNever)==0 );
if( sqlite3GlobalConfig.xVdbeBranch==0 ) return; /*NO_TEST*/
+ /* Invoke the branch coverage callback with three arguments:
+ ** iSrcLine - the line number of the VdbeCoverage() macro, with
+ ** flags removed.
+ ** I - Mask of bits 0x07 indicating which cases are are
+ ** fulfilled by this instance of the jump. 0x01 means
+ ** fall-thru, 0x02 means taken, 0x04 means NULL. Any
+ ** impossible cases (ex: if the comparison is never NULL)
+ ** are filled in automatically so that the coverage
+ ** measurement logic does not flag those impossible cases
+ ** as missed coverage.
+ ** M - Type of jump. Same as M argument above
+ */
I |= mNever;
if( M==2 ) I |= 0x04;
if( M==4 ){
@@ -82746,14 +84051,6 @@ SQLITE_API int sqlite3_found_count = 0;
}
#endif
-/*
-** Convert the given register into a string if it isn't one
-** already. Return non-zero if a malloc() fails.
-*/
-#define Stringify(P, enc) \
- if(((P)->flags&(MEM_Str|MEM_Blob))==0 && sqlite3VdbeMemStringify(P,enc,0)) \
- { goto no_mem; }
-
/*
** An ephemeral string value (signified by the MEM_Ephem flag) contains
** a pointer to a dynamically allocated string where some other entity
@@ -82811,6 +84108,11 @@ static VdbeCursor *allocateCursor(
assert( iCur>=0 && iCurnCursor );
if( p->apCsr[iCur] ){ /*OPTIMIZATION-IF-FALSE*/
+ /* Before calling sqlite3VdbeFreeCursor(), ensure the isEphemeral flag
+ ** is clear. Otherwise, if this is an ephemeral cursor created by
+ ** OP_OpenDup, the cursor will not be closed and will still be part
+ ** of a BtShared.pCursor list. */
+ if( p->apCsr[iCur]->pBtx==0 ) p->apCsr[iCur]->isEphemeral = 0;
sqlite3VdbeFreeCursor(p, p->apCsr[iCur]);
p->apCsr[iCur] = 0;
}
@@ -82830,6 +84132,21 @@ static VdbeCursor *allocateCursor(
return pCx;
}
+/*
+** The string in pRec is known to look like an integer and to have a
+** floating point value of rValue. Return true and set *piValue to the
+** integer value if the string is in range to be an integer. Otherwise,
+** return false.
+*/
+static int alsoAnInt(Mem *pRec, double rValue, i64 *piValue){
+ i64 iValue = (double)rValue;
+ if( sqlite3RealSameAsInt(rValue,iValue) ){
+ *piValue = iValue;
+ return 1;
+ }
+ return 0==sqlite3Atoi64(pRec->z, piValue, pRec->n, pRec->enc);
+}
+
/*
** Try to convert a value into a numeric representation if we can
** do so without loss of information. In other words, if the string
@@ -82847,12 +84164,12 @@ static VdbeCursor *allocateCursor(
*/
static void applyNumericAffinity(Mem *pRec, int bTryForInt){
double rValue;
- i64 iValue;
u8 enc = pRec->enc;
- assert( (pRec->flags & (MEM_Str|MEM_Int|MEM_Real))==MEM_Str );
- if( sqlite3AtoF(pRec->z, &rValue, pRec->n, enc)==0 ) return;
- if( 0==sqlite3Atoi64(pRec->z, &iValue, pRec->n, enc) ){
- pRec->u.i = iValue;
+ int rc;
+ assert( (pRec->flags & (MEM_Str|MEM_Int|MEM_Real|MEM_IntReal))==MEM_Str );
+ rc = sqlite3AtoF(pRec->z, &rValue, pRec->n, enc);
+ if( rc<=0 ) return;
+ if( rc==1 && alsoAnInt(pRec, rValue, &pRec->u.i) ){
pRec->flags |= MEM_Int;
}else{
pRec->u.r = rValue;
@@ -82882,6 +84199,7 @@ static void applyNumericAffinity(Mem *pRec, int bTryForInt){
** Convert pRec to a text representation.
**
** SQLITE_AFF_BLOB:
+** SQLITE_AFF_NONE:
** No-op. pRec is unchanged.
*/
static void applyAffinity(
@@ -82906,11 +84224,14 @@ static void applyAffinity(
** there is already a string rep, but it is pointless to waste those
** CPU cycles. */
if( 0==(pRec->flags&MEM_Str) ){ /*OPTIMIZATION-IF-FALSE*/
- if( (pRec->flags&(MEM_Real|MEM_Int)) ){
+ if( (pRec->flags&(MEM_Real|MEM_Int|MEM_IntReal)) ){
+ testcase( pRec->flags & MEM_Int );
+ testcase( pRec->flags & MEM_Real );
+ testcase( pRec->flags & MEM_IntReal );
sqlite3VdbeMemStringify(pRec, enc, 1);
}
}
- pRec->flags &= ~(MEM_Real|MEM_Int);
+ pRec->flags &= ~(MEM_Real|MEM_Int|MEM_IntReal);
}
}
@@ -82949,12 +84270,21 @@ SQLITE_PRIVATE void sqlite3ValueApplyAffinity(
** accordingly.
*/
static u16 SQLITE_NOINLINE computeNumericType(Mem *pMem){
- assert( (pMem->flags & (MEM_Int|MEM_Real))==0 );
+ int rc;
+ sqlite3_int64 ix;
+ assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal))==0 );
assert( (pMem->flags & (MEM_Str|MEM_Blob))!=0 );
- if( sqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc)==0 ){
- return 0;
- }
- if( sqlite3Atoi64(pMem->z, &pMem->u.i, pMem->n, pMem->enc)==0 ){
+ ExpandBlob(pMem);
+ rc = sqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc);
+ if( rc<=0 ){
+ if( rc==0 && sqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)<=1 ){
+ pMem->u.i = ix;
+ return MEM_Int;
+ }else{
+ return MEM_Real;
+ }
+ }else if( rc==1 && sqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)==0 ){
+ pMem->u.i = ix;
return MEM_Int;
}
return MEM_Real;
@@ -82968,10 +84298,15 @@ static u16 SQLITE_NOINLINE computeNumericType(Mem *pMem){
** But it does set pMem->u.r and pMem->u.i appropriately.
*/
static u16 numericType(Mem *pMem){
- if( pMem->flags & (MEM_Int|MEM_Real) ){
- return pMem->flags & (MEM_Int|MEM_Real);
+ if( pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal) ){
+ testcase( pMem->flags & MEM_Int );
+ testcase( pMem->flags & MEM_Real );
+ testcase( pMem->flags & MEM_IntReal );
+ return pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal);
}
if( pMem->flags & (MEM_Str|MEM_Blob) ){
+ testcase( pMem->flags & MEM_Str );
+ testcase( pMem->flags & MEM_Blob );
return computeNumericType(pMem);
}
return 0;
@@ -83004,13 +84339,15 @@ SQLITE_PRIVATE void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf){
c = 's';
}
*(zCsr++) = c;
+ *(zCsr++) = 'x';
sqlite3_snprintf(100, zCsr, "%d[", pMem->n);
zCsr += sqlite3Strlen30(zCsr);
- for(i=0; i<16 && in; i++){
+ for(i=0; i<25 && in; i++){
sqlite3_snprintf(100, zCsr, "%02X", ((int)pMem->z[i] & 0xFF));
zCsr += sqlite3Strlen30(zCsr);
}
- for(i=0; i<16 && in; i++){
+ *zCsr++ = '|';
+ for(i=0; i<25 && in; i++){
char z = pMem->z[i];
if( z<32 || z>126 ) *zCsr++ = '.';
else *zCsr++ = z;
@@ -83040,7 +84377,7 @@ SQLITE_PRIVATE void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf){
sqlite3_snprintf(100, &zBuf[k], "%d", pMem->n);
k += sqlite3Strlen30(&zBuf[k]);
zBuf[k++] = '[';
- for(j=0; j<15 && jn; j++){
+ for(j=0; j<25 && jn; j++){
u8 c = pMem->z[j];
if( c>=0x20 && c<0x7f ){
zBuf[k++] = c;
@@ -83067,11 +84404,13 @@ static void memTracePrint(Mem *p){
printf(p->flags & MEM_Zero ? " NULL-nochng" : " NULL");
}else if( (p->flags & (MEM_Int|MEM_Str))==(MEM_Int|MEM_Str) ){
printf(" si:%lld", p->u.i);
+ }else if( (p->flags & (MEM_IntReal))!=0 ){
+ printf(" ir:%lld", p->u.i);
}else if( p->flags & MEM_Int ){
printf(" i:%lld", p->u.i);
#ifndef SQLITE_OMIT_FLOATING_POINT
}else if( p->flags & MEM_Real ){
- printf(" r:%g", p->u.r);
+ printf(" r:%.17g", p->u.r);
#endif
}else if( sqlite3VdbeMemIsRowSet(p) ){
printf(" (rowset)");
@@ -83276,6 +84615,15 @@ SQLITE_PRIVATE int sqlite3VdbeExec(
assert( p->magic==VDBE_MAGIC_RUN ); /* sqlite3_step() verifies this */
sqlite3VdbeEnter(p);
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+ if( db->xProgress ){
+ u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP];
+ assert( 0 < db->nProgressOps );
+ nProgressLimit = db->nProgressOps - (iPrior % db->nProgressOps);
+ }else{
+ nProgressLimit = 0xffffffff;
+ }
+#endif
if( p->rc==SQLITE_NOMEM ){
/* This happens if a malloc() inside a call to sqlite3_column_text() or
** sqlite3_column_text16() failed. */
@@ -83289,15 +84637,6 @@ SQLITE_PRIVATE int sqlite3VdbeExec(
db->busyHandler.nBusy = 0;
if( db->u1.isInterrupted ) goto abort_due_to_interrupt;
sqlite3VdbeIOTraceSql(p);
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
- if( db->xProgress ){
- u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP];
- assert( 0 < db->nProgressOps );
- nProgressLimit = db->nProgressOps - (iPrior % db->nProgressOps);
- }else{
- nProgressLimit = 0xffffffff;
- }
-#endif
#ifdef SQLITE_DEBUG
sqlite3BeginBenignMalloc();
if( p->pc==0
@@ -83473,10 +84812,11 @@ check_for_interrupt:
** If the progress callback returns non-zero, exit the virtual machine with
** a return code SQLITE_ABORT.
*/
- if( nVmStep>=nProgressLimit && db->xProgress!=0 ){
+ while( nVmStep>=nProgressLimit && db->xProgress!=0 ){
assert( db->nProgressOps!=0 );
- nProgressLimit = nVmStep + db->nProgressOps - (nVmStep%db->nProgressOps);
+ nProgressLimit += db->nProgressOps;
if( db->xProgress(db->pProgressArg) ){
+ nProgressLimit = 0xffffffff;
rc = SQLITE_INTERRUPT;
goto abort_due_to_error;
}
@@ -83748,13 +85088,13 @@ case OP_Real: { /* same as TK_FLOAT, out2 */
case OP_String8: { /* same as TK_STRING, out2 */
assert( pOp->p4.z!=0 );
pOut = out2Prerelease(p, pOp);
- pOp->opcode = OP_String;
pOp->p1 = sqlite3Strlen30(pOp->p4.z);
#ifndef SQLITE_OMIT_UTF16
if( encoding!=SQLITE_UTF8 ){
rc = sqlite3VdbeMemSetStr(pOut, pOp->p4.z, -1, SQLITE_UTF8, SQLITE_STATIC);
assert( rc==SQLITE_OK || rc==SQLITE_TOOBIG );
+ if( rc ) goto too_big;
if( SQLITE_OK!=sqlite3VdbeChangeEncoding(pOut, encoding) ) goto no_mem;
assert( pOut->szMalloc>0 && pOut->zMalloc==pOut->z );
assert( VdbeMemDynamic(pOut)==0 );
@@ -83767,11 +85107,11 @@ case OP_String8: { /* same as TK_STRING, out2 */
pOp->p4.z = pOut->z;
pOp->p1 = pOut->n;
}
- testcase( rc==SQLITE_TOOBIG );
#endif
if( pOp->p1>db->aLimit[SQLITE_LIMIT_LENGTH] ){
goto too_big;
}
+ pOp->opcode = OP_String;
assert( rc==SQLITE_OK );
/* Fall through to the next case, OP_String */
}
@@ -83889,7 +85229,10 @@ case OP_Variable: { /* out2 */
goto too_big;
}
pOut = &aMem[pOp->p2];
- sqlite3VdbeMemShallowCopy(pOut, pVar, MEM_Static);
+ if( VdbeMemDynamic(pOut) ) sqlite3VdbeMemSetNull(pOut);
+ memcpy(pOut, pVar, MEMCELLSIZE);
+ pOut->flags &= ~(MEM_Dyn|MEM_Ephem);
+ pOut->flags |= MEM_Static|MEM_FromBind;
UPDATE_MAX_BLOBSIZE(pOut);
break;
}
@@ -84022,18 +85365,6 @@ case OP_ResultRow: {
assert( pOp->p1>0 );
assert( pOp->p1+pOp->p2<=(p->nMem+1 - p->nCursor)+1 );
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
- /* Run the progress counter just before returning.
- */
- if( db->xProgress!=0
- && nVmStep>=nProgressLimit
- && db->xProgress(db->pProgressArg)!=0
- ){
- rc = SQLITE_INTERRUPT;
- goto abort_due_to_error;
- }
-#endif
-
/* If this statement has violated immediate foreign key constraints, do
** not return the number of rows modified. And do not RELEASE the statement
** transaction. It needs to be rolled back. */
@@ -84105,33 +85436,57 @@ case OP_ResultRow: {
** to avoid a memcpy().
*/
case OP_Concat: { /* same as TK_CONCAT, in1, in2, out3 */
- i64 nByte;
+ i64 nByte; /* Total size of the output string or blob */
+ u16 flags1; /* Initial flags for P1 */
+ u16 flags2; /* Initial flags for P2 */
pIn1 = &aMem[pOp->p1];
pIn2 = &aMem[pOp->p2];
pOut = &aMem[pOp->p3];
+ testcase( pIn1==pIn2 );
+ testcase( pOut==pIn2 );
assert( pIn1!=pOut );
- if( (pIn1->flags | pIn2->flags) & MEM_Null ){
+ flags1 = pIn1->flags;
+ testcase( flags1 & MEM_Null );
+ testcase( pIn2->flags & MEM_Null );
+ if( (flags1 | pIn2->flags) & MEM_Null ){
sqlite3VdbeMemSetNull(pOut);
break;
}
- if( ExpandBlob(pIn1) || ExpandBlob(pIn2) ) goto no_mem;
- Stringify(pIn1, encoding);
- Stringify(pIn2, encoding);
+ if( (flags1 & (MEM_Str|MEM_Blob))==0 ){
+ if( sqlite3VdbeMemStringify(pIn1,encoding,0) ) goto no_mem;
+ flags1 = pIn1->flags & ~MEM_Str;
+ }else if( (flags1 & MEM_Zero)!=0 ){
+ if( sqlite3VdbeMemExpandBlob(pIn1) ) goto no_mem;
+ flags1 = pIn1->flags & ~MEM_Str;
+ }
+ flags2 = pIn2->flags;
+ if( (flags2 & (MEM_Str|MEM_Blob))==0 ){
+ if( sqlite3VdbeMemStringify(pIn2,encoding,0) ) goto no_mem;
+ flags2 = pIn2->flags & ~MEM_Str;
+ }else if( (flags2 & MEM_Zero)!=0 ){
+ if( sqlite3VdbeMemExpandBlob(pIn2) ) goto no_mem;
+ flags2 = pIn2->flags & ~MEM_Str;
+ }
nByte = pIn1->n + pIn2->n;
if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
goto too_big;
}
- if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){
+ if( sqlite3VdbeMemGrow(pOut, (int)nByte+3, pOut==pIn2) ){
goto no_mem;
}
MemSetTypeFlag(pOut, MEM_Str);
if( pOut!=pIn2 ){
memcpy(pOut->z, pIn2->z, pIn2->n);
+ assert( (pIn2->flags & MEM_Dyn) == (flags2 & MEM_Dyn) );
+ pIn2->flags = flags2;
}
memcpy(&pOut->z[pIn2->n], pIn1->z, pIn1->n);
+ assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );
+ pIn1->flags = flags1;
pOut->z[nByte]=0;
pOut->z[nByte+1] = 0;
+ pOut->z[nByte+2] = 0;
pOut->flags |= MEM_Term;
pOut->n = (int)nByte;
pOut->enc = encoding;
@@ -84182,7 +85537,6 @@ case OP_Subtract: /* same as TK_MINUS, in1, in2, out3 */
case OP_Multiply: /* same as TK_STAR, in1, in2, out3 */
case OP_Divide: /* same as TK_SLASH, in1, in2, out3 */
case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */
- char bIntint; /* Started out as two integer operands */
u16 flags; /* Combined MEM_* flags from both inputs */
u16 type1; /* Numeric type of left operand */
u16 type2; /* Numeric type of right operand */
@@ -84200,7 +85554,6 @@ case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */
if( (type1 & type2 & MEM_Int)!=0 ){
iA = pIn1->u.i;
iB = pIn2->u.i;
- bIntint = 1;
switch( pOp->opcode ){
case OP_Add: if( sqlite3AddInt64(&iB,iA) ) goto fp_math; break;
case OP_Subtract: if( sqlite3SubInt64(&iB,iA) ) goto fp_math; break;
@@ -84223,7 +85576,6 @@ case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */
}else if( (flags & MEM_Null)!=0 ){
goto arithmetic_result_is_null;
}else{
- bIntint = 0;
fp_math:
rA = sqlite3VdbeRealValue(pIn1);
rB = sqlite3VdbeRealValue(pIn2);
@@ -84238,8 +85590,8 @@ fp_math:
break;
}
default: {
- iA = (i64)rA;
- iB = (i64)rB;
+ iA = sqlite3VdbeIntValue(pIn1);
+ iB = sqlite3VdbeIntValue(pIn2);
if( iA==0 ) goto arithmetic_result_is_null;
if( iA==-1 ) iA = 1;
rB = (double)(iB % iA);
@@ -84255,9 +85607,6 @@ fp_math:
}
pOut->u.r = rB;
MemSetTypeFlag(pOut, MEM_Real);
- if( ((type1|type2)&MEM_Real)==0 && !bIntint ){
- sqlite3VdbeIntegerAffinity(pOut);
- }
#endif
}
break;
@@ -84399,8 +85748,8 @@ case OP_MustBeInt: { /* jump, in1 */
pIn1 = &aMem[pOp->p1];
if( (pIn1->flags & MEM_Int)==0 ){
applyAffinity(pIn1, SQLITE_AFF_NUMERIC, encoding);
- VdbeBranchTaken((pIn1->flags&MEM_Int)==0, 2);
if( (pIn1->flags & MEM_Int)==0 ){
+ VdbeBranchTaken(1, 2);
if( pOp->p2==0 ){
rc = SQLITE_MISMATCH;
goto abort_due_to_error;
@@ -84409,6 +85758,7 @@ case OP_MustBeInt: { /* jump, in1 */
}
}
}
+ VdbeBranchTaken(0, 2);
MemSetTypeFlag(pIn1, MEM_Int);
break;
}
@@ -84425,8 +85775,11 @@ case OP_MustBeInt: { /* jump, in1 */
*/
case OP_RealAffinity: { /* in1 */
pIn1 = &aMem[pOp->p1];
- if( pIn1->flags & MEM_Int ){
+ if( pIn1->flags & (MEM_Int|MEM_IntReal) ){
+ testcase( pIn1->flags & MEM_Int );
+ testcase( pIn1->flags & MEM_IntReal );
sqlite3VdbeMemRealify(pIn1);
+ REGISTER_TRACE(pOp->p1, pIn1);
}
break;
}
@@ -84583,15 +85936,15 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
** OP_Eq or OP_Ne) then take the jump or not depending on whether
** or not both operands are null.
*/
- assert( pOp->opcode==OP_Eq || pOp->opcode==OP_Ne );
assert( (flags1 & MEM_Cleared)==0 );
- assert( (pOp->p5 & SQLITE_JUMPIFNULL)==0 );
+ assert( (pOp->p5 & SQLITE_JUMPIFNULL)==0 || CORRUPT_DB );
+ testcase( (pOp->p5 & SQLITE_JUMPIFNULL)!=0 );
if( (flags1&flags3&MEM_Null)!=0
&& (flags3&MEM_Cleared)==0
){
res = 0; /* Operands are equal */
}else{
- res = 1; /* Operands are not equal */
+ res = ((flags3 & MEM_Null) ? -1 : +1); /* Operands are not equal */
}
}else{
/* SQLITE_NULLEQ is clear and at least one operand is NULL,
@@ -84617,7 +85970,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
affinity = pOp->p5 & SQLITE_AFF_MASK;
if( affinity>=SQLITE_AFF_NUMERIC ){
if( (flags1 | flags3)&MEM_Str ){
- if( (flags1 & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
+ if( (flags1 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){
applyNumericAffinity(pIn1,0);
assert( flags3==pIn3->flags );
/* testcase( flags3!=pIn3->flags );
@@ -84627,7 +85980,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
** in case our analysis is incorrect, so it is left in. */
flags3 = pIn3->flags;
}
- if( (flags3 & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
+ if( (flags3 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){
applyNumericAffinity(pIn3,0);
}
}
@@ -84640,17 +85993,19 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
goto compare_op;
}
}else if( affinity==SQLITE_AFF_TEXT ){
- if( (flags1 & MEM_Str)==0 && (flags1 & (MEM_Int|MEM_Real))!=0 ){
+ if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
testcase( pIn1->flags & MEM_Int );
testcase( pIn1->flags & MEM_Real );
+ testcase( pIn1->flags & MEM_IntReal );
sqlite3VdbeMemStringify(pIn1, encoding, 1);
testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
assert( pIn1!=pIn3 );
}
- if( (flags3 & MEM_Str)==0 && (flags3 & (MEM_Int|MEM_Real))!=0 ){
+ if( (flags3 & MEM_Str)==0 && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
testcase( pIn3->flags & MEM_Int );
testcase( pIn3->flags & MEM_Real );
+ testcase( pIn3->flags & MEM_IntReal );
sqlite3VdbeMemStringify(pIn3, encoding, 1);
testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
@@ -84709,7 +86064,7 @@ compare_op:
pOut->u.i = res2;
REGISTER_TRACE(pOp->p2, pOut);
}else{
- VdbeBranchTaken(res!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3);
+ VdbeBranchTaken(res2!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3);
if( res2 ){
goto jump_to_p2;
}
@@ -84820,9 +86175,14 @@ case OP_Compare: {
REGISTER_TRACE(p2+idx, &aMem[p2+idx]);
assert( inKeyField );
pColl = pKeyInfo->aColl[i];
- bRev = pKeyInfo->aSortOrder[i];
+ bRev = (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC);
iCompare = sqlite3MemCompare(&aMem[p1+idx], &aMem[p2+idx], pColl);
if( iCompare ){
+ if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL)
+ && ((aMem[p1+idx].flags & MEM_Null) || (aMem[p2+idx].flags & MEM_Null))
+ ){
+ iCompare = -iCompare;
+ }
if( bRev ) iCompare = -iCompare;
break;
}
@@ -85113,11 +86473,6 @@ case OP_Offset: { /* out3 */
** if the P4 argument is a P4_MEM use the value of the P4 argument as
** the result.
**
-** If the OPFLAG_CLEARCACHE bit is set on P5 and P1 is a pseudo-table cursor,
-** then the cache of the cursor is reset prior to extracting the column.
-** The first OP_Column against a pseudo-table after the value of the content
-** register has changed should have this bit set.
-**
** If the OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG bits are set on P5 then
** the result is guaranteed to only be used as the argument of a length()
** or typeof() function, respectively. The loading of large blobs can be
@@ -85259,15 +86614,15 @@ case OP_Column: {
zEndHdr = zData + aOffset[0];
testcase( zHdr>=zEndHdr );
do{
- if( (t = zHdr[0])<0x80 ){
+ if( (pC->aType[i] = t = zHdr[0])<0x80 ){
zHdr++;
offset64 += sqlite3VdbeOneByteSerialTypeLen(t);
}else{
zHdr += sqlite3GetVarint32(zHdr, &t);
+ pC->aType[i] = t;
offset64 += sqlite3VdbeSerialTypeLen(t);
}
- pC->aType[i++] = t;
- aOffset[i] = (u32)(offset64 & 0xffffffff);
+ aOffset[++i] = (u32)(offset64 & 0xffffffff);
}while( i<=p2 && zHdrp2>0 );
assert( zAffinity[pOp->p2]==0 );
pIn1 = &aMem[pOp->p1];
- do{
+ while( 1 /*exit-by-break*/ ){
assert( pIn1 <= &p->aMem[(p->nMem+1 - p->nCursor)] );
assert( memIsValid(pIn1) );
- applyAffinity(pIn1, *(zAffinity++), encoding);
+ applyAffinity(pIn1, zAffinity[0], encoding);
+ if( zAffinity[0]==SQLITE_AFF_REAL && (pIn1->flags & MEM_Int)!=0 ){
+ /* When applying REAL affinity, if the result is still an MEM_Int
+ ** that will fit in 6 bytes, then change the type to MEM_IntReal
+ ** so that we keep the high-resolution integer value but know that
+ ** the type really wants to be REAL. */
+ testcase( pIn1->u.i==140737488355328LL );
+ testcase( pIn1->u.i==140737488355327LL );
+ testcase( pIn1->u.i==-140737488355328LL );
+ testcase( pIn1->u.i==-140737488355329LL );
+ if( pIn1->u.i<=140737488355327LL && pIn1->u.i>=-140737488355328LL ){
+ pIn1->flags |= MEM_IntReal;
+ pIn1->flags &= ~MEM_Int;
+ }else{
+ pIn1->u.r = (double)pIn1->u.i;
+ pIn1->flags |= MEM_Real;
+ pIn1->flags &= ~MEM_Int;
+ }
+ }
+ REGISTER_TRACE((int)(pIn1-aMem), pIn1);
+ zAffinity++;
+ if( zAffinity[0]==0 ) break;
pIn1++;
- }while( zAffinity[0] );
+ }
break;
}
@@ -85432,7 +86808,6 @@ case OP_Affinity: {
** If P4 is NULL then all index fields have the affinity BLOB.
*/
case OP_MakeRecord: {
- u8 *zNewRecord; /* A buffer to hold the data for the new record */
Mem *pRec; /* The new record */
u64 nData; /* Number of bytes of data space */
int nHdr; /* Number of bytes of header space */
@@ -85445,9 +86820,9 @@ case OP_MakeRecord: {
int nField; /* Number of fields in the record */
char *zAffinity; /* The affinity string for the record */
int file_format; /* File format to use for encoding */
- int i; /* Space used in zNewRecord[] header */
- int j; /* Space used in zNewRecord[] content */
u32 len; /* Length of a field */
+ u8 *zHdr; /* Where to write next byte of the header */
+ u8 *zPayload; /* Where to write next byte of the payload */
/* Assuming the record contains N fields, the record format looks
** like this:
@@ -85486,7 +86861,14 @@ case OP_MakeRecord: {
if( zAffinity ){
pRec = pData0;
do{
- applyAffinity(pRec++, *(zAffinity++), encoding);
+ applyAffinity(pRec, zAffinity[0], encoding);
+ if( zAffinity[0]==SQLITE_AFF_REAL && (pRec->flags & MEM_Int) ){
+ pRec->flags |= MEM_IntReal;
+ pRec->flags &= ~(MEM_Int);
+ }
+ REGISTER_TRACE((int)(pRec-aMem), pRec);
+ zAffinity++;
+ pRec++;
assert( zAffinity[0]==0 || pRec<=pLast );
}while( zAffinity[0] );
}
@@ -85506,14 +86888,36 @@ case OP_MakeRecord: {
#endif
/* Loop through the elements that will make up the record to figure
- ** out how much space is required for the new record.
+ ** out how much space is required for the new record. After this loop,
+ ** the Mem.uTemp field of each term should hold the serial-type that will
+ ** be used for that term in the generated record:
+ **
+ ** Mem.uTemp value type
+ ** --------------- ---------------
+ ** 0 NULL
+ ** 1 1-byte signed integer
+ ** 2 2-byte signed integer
+ ** 3 3-byte signed integer
+ ** 4 4-byte signed integer
+ ** 5 6-byte signed integer
+ ** 6 8-byte signed integer
+ ** 7 IEEE float
+ ** 8 Integer constant 0
+ ** 9 Integer constant 1
+ ** 10,11 reserved for expansion
+ ** N>=12 and even BLOB
+ ** N>=13 and odd text
+ **
+ ** The following additional values are computed:
+ ** nHdr Number of bytes needed for the record header
+ ** nData Number of bytes of data space needed for the record
+ ** nZero Zero bytes at the end of the record
*/
pRec = pLast;
do{
assert( memIsValid(pRec) );
- serial_type = sqlite3VdbeSerialType(pRec, file_format, &len);
- if( pRec->flags & MEM_Zero ){
- if( serial_type==0 ){
+ if( pRec->flags & MEM_Null ){
+ if( pRec->flags & MEM_Zero ){
/* Values with MEM_Null and MEM_Zero are created by xColumn virtual
** table methods that never invoke sqlite3_result_xxxxx() while
** computing an unchanging column value in an UPDATE statement.
@@ -85521,19 +86925,83 @@ case OP_MakeRecord: {
** so that they can be passed through to xUpdate and have
** a true sqlite3_value_nochange(). */
assert( pOp->p5==OPFLAG_NOCHNG_MAGIC || CORRUPT_DB );
- serial_type = 10;
- }else if( nData ){
- if( sqlite3VdbeMemExpandBlob(pRec) ) goto no_mem;
+ pRec->uTemp = 10;
}else{
- nZero += pRec->u.nZero;
- len -= pRec->u.nZero;
+ pRec->uTemp = 0;
}
+ nHdr++;
+ }else if( pRec->flags & (MEM_Int|MEM_IntReal) ){
+ /* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
+ i64 i = pRec->u.i;
+ u64 uu;
+ testcase( pRec->flags & MEM_Int );
+ testcase( pRec->flags & MEM_IntReal );
+ if( i<0 ){
+ uu = ~i;
+ }else{
+ uu = i;
+ }
+ nHdr++;
+ testcase( uu==127 ); testcase( uu==128 );
+ testcase( uu==32767 ); testcase( uu==32768 );
+ testcase( uu==8388607 ); testcase( uu==8388608 );
+ testcase( uu==2147483647 ); testcase( uu==2147483648 );
+ testcase( uu==140737488355327LL ); testcase( uu==140737488355328LL );
+ if( uu<=127 ){
+ if( (i&1)==i && file_format>=4 ){
+ pRec->uTemp = 8+(u32)uu;
+ }else{
+ nData++;
+ pRec->uTemp = 1;
+ }
+ }else if( uu<=32767 ){
+ nData += 2;
+ pRec->uTemp = 2;
+ }else if( uu<=8388607 ){
+ nData += 3;
+ pRec->uTemp = 3;
+ }else if( uu<=2147483647 ){
+ nData += 4;
+ pRec->uTemp = 4;
+ }else if( uu<=140737488355327LL ){
+ nData += 6;
+ pRec->uTemp = 5;
+ }else{
+ nData += 8;
+ if( pRec->flags & MEM_IntReal ){
+ /* If the value is IntReal and is going to take up 8 bytes to store
+ ** as an integer, then we might as well make it an 8-byte floating
+ ** point value */
+ pRec->u.r = (double)pRec->u.i;
+ pRec->flags &= ~MEM_IntReal;
+ pRec->flags |= MEM_Real;
+ pRec->uTemp = 7;
+ }else{
+ pRec->uTemp = 6;
+ }
+ }
+ }else if( pRec->flags & MEM_Real ){
+ nHdr++;
+ nData += 8;
+ pRec->uTemp = 7;
+ }else{
+ assert( db->mallocFailed || pRec->flags&(MEM_Str|MEM_Blob) );
+ assert( pRec->n>=0 );
+ len = (u32)pRec->n;
+ serial_type = (len*2) + 12 + ((pRec->flags & MEM_Str)!=0);
+ if( pRec->flags & MEM_Zero ){
+ serial_type += pRec->u.nZero*2;
+ if( nData ){
+ if( sqlite3VdbeMemExpandBlob(pRec) ) goto no_mem;
+ len += pRec->u.nZero;
+ }else{
+ nZero += pRec->u.nZero;
+ }
+ }
+ nData += len;
+ nHdr += sqlite3VarintLen(serial_type);
+ pRec->uTemp = serial_type;
}
- nData += len;
- testcase( serial_type==127 );
- testcase( serial_type==128 );
- nHdr += serial_type<=127 ? 1 : sqlite3VarintLen(serial_type);
- pRec->uTemp = serial_type;
if( pRec==pData0 ) break;
pRec--;
}while(1);
@@ -85554,46 +87022,54 @@ case OP_MakeRecord: {
if( nVarintdb->aLimit[SQLITE_LIMIT_LENGTH] ){
- goto too_big;
- }
/* Make sure the output register has a buffer large enough to store
** the new record. The output register (pOp->p3) is not allowed to
** be one of the input registers (because the following call to
** sqlite3VdbeMemClearAndResize() could clobber the value before it is used).
*/
- if( sqlite3VdbeMemClearAndResize(pOut, (int)nByte) ){
- goto no_mem;
+ if( nByte+nZero<=pOut->szMalloc ){
+ /* The output register is already large enough to hold the record.
+ ** No error checks or buffer enlargement is required */
+ pOut->z = pOut->zMalloc;
+ }else{
+ /* Need to make sure that the output is not too big and then enlarge
+ ** the output register to hold the full result */
+ if( nByte+nZero>db->aLimit[SQLITE_LIMIT_LENGTH] ){
+ goto too_big;
+ }
+ if( sqlite3VdbeMemClearAndResize(pOut, (int)nByte) ){
+ goto no_mem;
+ }
}
- zNewRecord = (u8 *)pOut->z;
-
- /* Write the record */
- i = putVarint32(zNewRecord, nHdr);
- j = nHdr;
- assert( pData0<=pLast );
- pRec = pData0;
- do{
- serial_type = pRec->uTemp;
- /* EVIDENCE-OF: R-06529-47362 Following the size varint are one or more
- ** additional varints, one per column. */
- i += putVarint32(&zNewRecord[i], serial_type); /* serial type */
- /* EVIDENCE-OF: R-64536-51728 The values for each column in the record
- ** immediately follow the header. */
- j += sqlite3VdbeSerialPut(&zNewRecord[j], pRec, serial_type); /* content */
- }while( (++pRec)<=pLast );
- assert( i==nHdr );
- assert( j==nByte );
-
- assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
pOut->n = (int)nByte;
pOut->flags = MEM_Blob;
if( nZero ){
pOut->u.nZero = nZero;
pOut->flags |= MEM_Zero;
}
- REGISTER_TRACE(pOp->p3, pOut);
UPDATE_MAX_BLOBSIZE(pOut);
+ zHdr = (u8 *)pOut->z;
+ zPayload = zHdr + nHdr;
+
+ /* Write the record */
+ zHdr += putVarint32(zHdr, nHdr);
+ assert( pData0<=pLast );
+ pRec = pData0;
+ do{
+ serial_type = pRec->uTemp;
+ /* EVIDENCE-OF: R-06529-47362 Following the size varint are one or more
+ ** additional varints, one per column. */
+ zHdr += putVarint32(zHdr, serial_type); /* serial type */
+ /* EVIDENCE-OF: R-64536-51728 The values for each column in the record
+ ** immediately follow the header. */
+ zPayload += sqlite3VdbeSerialPut(zPayload, pRec, serial_type); /* content */
+ }while( (++pRec)<=pLast );
+ assert( nHdr==(int)(zHdr - (u8*)pOut->z) );
+ assert( nByte==(int)(zPayload - (u8*)pOut->z) );
+
+ assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
+ REGISTER_TRACE(pOp->p3, pOut);
break;
}
@@ -85623,8 +87099,9 @@ case OP_Count: { /* out2 */
/* Opcode: Savepoint P1 * * P4 *
**
** Open, release or rollback the savepoint named by parameter P4, depending
-** on the value of P1. To open a new savepoint, P1==0. To release (commit) an
-** existing savepoint, P1==1, or to rollback an existing savepoint P1==2.
+** on the value of P1. To open a new savepoint set P1==0 (SAVEPOINT_BEGIN).
+** To release (commit) an existing savepoint set P1==1 (SAVEPOINT_RELEASE).
+** To rollback an existing savepoint set P1==2 (SAVEPOINT_ROLLBACK).
*/
case OP_Savepoint: {
int p1; /* Value of P1 operand */
@@ -85692,6 +87169,7 @@ case OP_Savepoint: {
}
}
}else{
+ assert( p1==SAVEPOINT_RELEASE || p1==SAVEPOINT_ROLLBACK );
iSavepoint = 0;
/* Find the named savepoint. If there is no such savepoint, then an
@@ -85745,6 +87223,7 @@ case OP_Savepoint: {
if( rc!=SQLITE_OK ) goto abort_due_to_error;
}
}else{
+ assert( p1==SAVEPOINT_RELEASE );
isSchemaChange = 0;
}
for(ii=0; iinDb; ii++){
@@ -85781,6 +87260,7 @@ case OP_Savepoint: {
db->nSavepoint--;
}
}else{
+ assert( p1==SAVEPOINT_ROLLBACK );
db->nDeferredCons = pSavepoint->nDeferredCons;
db->nDeferredImmCons = pSavepoint->nDeferredImmCons;
}
@@ -85857,7 +87337,7 @@ case OP_AutoCommit: {
rc = SQLITE_ERROR;
goto abort_due_to_error;
}
- break;
+ /*NOTREACHED*/ assert(0);
}
/* Opcode: Transaction P1 P2 P3 P4 P5
@@ -86261,7 +87741,9 @@ case OP_OpenDup: {
pCx->isEphemeral = 1;
pCx->pKeyInfo = pOrig->pKeyInfo;
pCx->isTable = pOrig->isTable;
- rc = sqlite3BtreeCursor(pOrig->pBtx, MASTER_ROOT, BTREE_WRCSR,
+ pCx->pgnoRoot = pOrig->pgnoRoot;
+ pCx->isOrdered = pOrig->isOrdered;
+ rc = sqlite3BtreeCursor(pOrig->pBtx, pCx->pgnoRoot, BTREE_WRCSR,
pCx->pKeyInfo, pCx->uc.pCursor);
/* The sqlite3BtreeCursor() routine can only fail for the first cursor
** opened for a database. Since there is already an open cursor when this
@@ -86279,6 +87761,9 @@ case OP_OpenDup: {
** the main database is read-only. The ephemeral
** table is deleted automatically when the cursor is closed.
**
+** If the cursor P1 is already opened on an ephemeral table, the table
+** is cleared (all content is erased).
+**
** P2 is the number of columns in the ephemeral table.
** The cursor points to a BTree table if P4==0 and to a BTree index
** if P4 is not 0. If P4 is not NULL, it points to a KeyInfo structure
@@ -86310,41 +87795,55 @@ case OP_OpenEphemeral: {
SQLITE_OPEN_TRANSIENT_DB;
assert( pOp->p1>=0 );
assert( pOp->p2>=0 );
- pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, CURTYPE_BTREE);
- if( pCx==0 ) goto no_mem;
- pCx->nullRow = 1;
- pCx->isEphemeral = 1;
- rc = sqlite3BtreeOpen(db->pVfs, 0, db, &pCx->pBtx,
- BTREE_OMIT_JOURNAL | BTREE_SINGLE | pOp->p5, vfsFlags);
- if( rc==SQLITE_OK ){
- rc = sqlite3BtreeBeginTrans(pCx->pBtx, 1, 0);
- }
- if( rc==SQLITE_OK ){
- /* If a transient index is required, create it by calling
- ** sqlite3BtreeCreateTable() with the BTREE_BLOBKEY flag before
- ** opening it. If a transient table is required, just use the
- ** automatically created table with root-page 1 (an BLOB_INTKEY table).
- */
- if( (pCx->pKeyInfo = pKeyInfo = pOp->p4.pKeyInfo)!=0 ){
- int pgno;
- assert( pOp->p4type==P4_KEYINFO );
- rc = sqlite3BtreeCreateTable(pCx->pBtx, &pgno, BTREE_BLOBKEY | pOp->p5);
- if( rc==SQLITE_OK ){
- assert( pgno==MASTER_ROOT+1 );
- assert( pKeyInfo->db==db );
- assert( pKeyInfo->enc==ENC(db) );
- rc = sqlite3BtreeCursor(pCx->pBtx, pgno, BTREE_WRCSR,
- pKeyInfo, pCx->uc.pCursor);
- }
- pCx->isTable = 0;
- }else{
- rc = sqlite3BtreeCursor(pCx->pBtx, MASTER_ROOT, BTREE_WRCSR,
- 0, pCx->uc.pCursor);
- pCx->isTable = 1;
+ pCx = p->apCsr[pOp->p1];
+ if( pCx ){
+ /* If the ephermeral table is already open, erase all existing content
+ ** so that the table is empty again, rather than creating a new table. */
+ assert( pCx->isEphemeral );
+ pCx->seqCount = 0;
+ pCx->cacheStatus = CACHE_STALE;
+ if( pCx->pBtx ){
+ rc = sqlite3BtreeClearTable(pCx->pBtx, pCx->pgnoRoot, 0);
}
+ }else{
+ pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, CURTYPE_BTREE);
+ if( pCx==0 ) goto no_mem;
+ pCx->isEphemeral = 1;
+ rc = sqlite3BtreeOpen(db->pVfs, 0, db, &pCx->pBtx,
+ BTREE_OMIT_JOURNAL | BTREE_SINGLE | pOp->p5,
+ vfsFlags);
+ if( rc==SQLITE_OK ){
+ rc = sqlite3BtreeBeginTrans(pCx->pBtx, 1, 0);
+ }
+ if( rc==SQLITE_OK ){
+ /* If a transient index is required, create it by calling
+ ** sqlite3BtreeCreateTable() with the BTREE_BLOBKEY flag before
+ ** opening it. If a transient table is required, just use the
+ ** automatically created table with root-page 1 (an BLOB_INTKEY table).
+ */
+ if( (pCx->pKeyInfo = pKeyInfo = pOp->p4.pKeyInfo)!=0 ){
+ assert( pOp->p4type==P4_KEYINFO );
+ rc = sqlite3BtreeCreateTable(pCx->pBtx, (int*)&pCx->pgnoRoot,
+ BTREE_BLOBKEY | pOp->p5);
+ if( rc==SQLITE_OK ){
+ assert( pCx->pgnoRoot==MASTER_ROOT+1 );
+ assert( pKeyInfo->db==db );
+ assert( pKeyInfo->enc==ENC(db) );
+ rc = sqlite3BtreeCursor(pCx->pBtx, pCx->pgnoRoot, BTREE_WRCSR,
+ pKeyInfo, pCx->uc.pCursor);
+ }
+ pCx->isTable = 0;
+ }else{
+ pCx->pgnoRoot = MASTER_ROOT;
+ rc = sqlite3BtreeCursor(pCx->pBtx, MASTER_ROOT, BTREE_WRCSR,
+ 0, pCx->uc.pCursor);
+ pCx->isTable = 1;
+ }
+ }
+ pCx->isOrdered = (pOp->p5!=BTREE_UNORDERED);
}
if( rc ) goto abort_due_to_error;
- pCx->isOrdered = (pOp->p5!=BTREE_UNORDERED);
+ pCx->nullRow = 1;
break;
}
@@ -86573,7 +88072,10 @@ case OP_SeekGT: { /* jump, in3, group */
pC->seekOp = pOp->opcode;
#endif
+ pC->deferredMoveto = 0;
+ pC->cacheStatus = CACHE_STALE;
if( pC->isTable ){
+ u16 flags3, newType;
/* The BTREE_SEEK_EQ flag is only set on index cursors */
assert( sqlite3BtreeCursorHasHint(pC->uc.pCursor, BTREE_SEEK_EQ)==0
|| CORRUPT_DB );
@@ -86582,20 +88084,27 @@ case OP_SeekGT: { /* jump, in3, group */
** blob, or NULL. But it needs to be an integer before we can do
** the seek, so convert it. */
pIn3 = &aMem[pOp->p3];
- if( (pIn3->flags & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
+ flags3 = pIn3->flags;
+ if( (flags3 & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Str))==MEM_Str ){
applyNumericAffinity(pIn3, 0);
}
- iKey = sqlite3VdbeIntValue(pIn3);
+ iKey = sqlite3VdbeIntValue(pIn3); /* Get the integer key value */
+ newType = pIn3->flags; /* Record the type after applying numeric affinity */
+ pIn3->flags = flags3; /* But convert the type back to its original */
/* If the P3 value could not be converted into an integer without
** loss of information, then special processing is required... */
- if( (pIn3->flags & MEM_Int)==0 ){
- if( (pIn3->flags & MEM_Real)==0 ){
- /* If the P3 value cannot be converted into any kind of a number,
- ** then the seek is not possible, so jump to P2 */
- VdbeBranchTaken(1,2); goto jump_to_p2;
- break;
- }
+ if( (newType & (MEM_Int|MEM_IntReal))==0 ){
+ if( (newType & MEM_Real)==0 ){
+ if( (newType & MEM_Null) || oc>=OP_SeekGE ){
+ VdbeBranchTaken(1,2);
+ goto jump_to_p2;
+ }else{
+ rc = sqlite3BtreeLast(pC->uc.pCursor, &res);
+ if( rc!=SQLITE_OK ) goto abort_due_to_error;
+ goto seek_not_found;
+ }
+ }else
/* If the approximation iKey is larger than the actual real search
** term, substitute >= for > and < for <=. e.g. if the search term
@@ -86619,7 +88128,7 @@ case OP_SeekGT: { /* jump, in3, group */
assert( (OP_SeekLT & 0x0001)==(OP_SeekGE & 0x0001) );
if( (oc & 0x0001)==(OP_SeekLT & 0x0001) ) oc++;
}
- }
+ }
rc = sqlite3BtreeMovetoUnpacked(pC->uc.pCursor, 0, (u64)iKey, 0, &res);
pC->movetoTarget = iKey; /* Used by OP_Delete */
if( rc!=SQLITE_OK ){
@@ -86673,8 +88182,6 @@ case OP_SeekGT: { /* jump, in3, group */
goto seek_not_found;
}
}
- pC->deferredMoveto = 0;
- pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
sqlite3_search_count++;
#endif
@@ -86974,34 +88481,39 @@ case OP_SeekRowid: { /* jump, in3 */
u64 iKey;
pIn3 = &aMem[pOp->p3];
- if( (pIn3->flags & MEM_Int)==0 ){
- /* Make sure pIn3->u.i contains a valid integer representation of
- ** the key value, but do not change the datatype of the register, as
- ** other parts of the perpared statement might be depending on the
- ** current datatype. */
- u16 origFlags = pIn3->flags;
- int isNotInt;
- applyAffinity(pIn3, SQLITE_AFF_NUMERIC, encoding);
- isNotInt = (pIn3->flags & MEM_Int)==0;
- pIn3->flags = origFlags;
- if( isNotInt ) goto jump_to_p2;
+ testcase( pIn3->flags & MEM_Int );
+ testcase( pIn3->flags & MEM_IntReal );
+ testcase( pIn3->flags & MEM_Real );
+ testcase( (pIn3->flags & (MEM_Str|MEM_Int))==MEM_Str );
+ if( (pIn3->flags & (MEM_Int|MEM_IntReal))==0 ){
+ /* If pIn3->u.i does not contain an integer, compute iKey as the
+ ** integer value of pIn3. Jump to P2 if pIn3 cannot be converted
+ ** into an integer without loss of information. Take care to avoid
+ ** changing the datatype of pIn3, however, as it is used by other
+ ** parts of the prepared statement. */
+ Mem x = pIn3[0];
+ applyAffinity(&x, SQLITE_AFF_NUMERIC, encoding);
+ if( (x.flags & MEM_Int)==0 ) goto jump_to_p2;
+ iKey = x.u.i;
+ goto notExistsWithKey;
}
/* Fall through into OP_NotExists */
case OP_NotExists: /* jump, in3 */
pIn3 = &aMem[pOp->p3];
assert( (pIn3->flags & MEM_Int)!=0 || pOp->opcode==OP_SeekRowid );
assert( pOp->p1>=0 && pOp->p1nCursor );
+ iKey = pIn3->u.i;
+notExistsWithKey:
pC = p->apCsr[pOp->p1];
assert( pC!=0 );
#ifdef SQLITE_DEBUG
- pC->seekOp = OP_SeekRowid;
+ if( pOp->opcode==OP_SeekRowid ) pC->seekOp = OP_SeekRowid;
#endif
assert( pC->isTable );
assert( pC->eCurType==CURTYPE_BTREE );
pCrsr = pC->uc.pCursor;
assert( pCrsr!=0 );
res = 0;
- iKey = pIn3->u.i;
rc = sqlite3BtreeMovetoUnpacked(pCrsr, 0, iKey, 0, &res);
assert( rc==SQLITE_OK || res==0 );
pC->movetoTarget = iKey; /* Used by OP_Delete */
@@ -87212,14 +88724,7 @@ case OP_NewRowid: { /* out2 */
** This instruction only works on tables. The equivalent instruction
** for indices is OP_IdxInsert.
*/
-/* Opcode: InsertInt P1 P2 P3 P4 P5
-** Synopsis: intkey=P3 data=r[P2]
-**
-** This works exactly like OP_Insert except that the key is the
-** integer value P3, not the value of the integer stored in register P3.
-*/
-case OP_Insert:
-case OP_InsertInt: {
+case OP_Insert: {
Mem *pData; /* MEM cell holding data for the record to be inserted */
Mem *pKey; /* MEM cell holding key for the record */
VdbeCursor *pC; /* Cursor to table into which insert is written */
@@ -87240,16 +88745,11 @@ case OP_InsertInt: {
REGISTER_TRACE(pOp->p2, pData);
sqlite3VdbeIncrWriteCounter(p, pC);
- if( pOp->opcode==OP_Insert ){
- pKey = &aMem[pOp->p3];
- assert( pKey->flags & MEM_Int );
- assert( memIsValid(pKey) );
- REGISTER_TRACE(pOp->p3, pKey);
- x.nKey = pKey->u.i;
- }else{
- assert( pOp->opcode==OP_InsertInt );
- x.nKey = pOp->p3;
- }
+ pKey = &aMem[pOp->p3];
+ assert( pKey->flags & MEM_Int );
+ assert( memIsValid(pKey) );
+ REGISTER_TRACE(pOp->p3, pKey);
+ x.nKey = pKey->u.i;
if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
assert( pC->iDb>=0 );
@@ -87361,7 +88861,7 @@ case OP_Delete: {
** OP_Delete will have also set the pC->movetoTarget field to the rowid of
** the row that is being deleted */
i64 iKey = sqlite3BtreeIntegerKey(pC->uc.pCursor);
- assert( pC->movetoTarget==iKey );
+ assert( CORRUPT_DB || pC->movetoTarget==iKey );
}
#endif
@@ -87769,7 +89269,7 @@ case OP_Sort: { /* jump */
p->aCounter[SQLITE_STMTSTATUS_SORT]++;
/* Fall through into OP_Rewind */
}
-/* Opcode: Rewind P1 P2 * * P5
+/* Opcode: Rewind P1 P2 * * *
**
** The next use of the Rowid or Column or Next instruction for P1
** will refer to the first entry in the database table or index.
@@ -87777,10 +89277,6 @@ case OP_Sort: { /* jump */
** If the table or index is not empty, fall through to the following
** instruction.
**
-** If P5 is non-zero and the table is not empty, then the "skip-next"
-** flag is set on the cursor so that the next OP_Next instruction
-** executed on it is a no-op.
-**
** This opcode leaves the cursor configured to move in forward order,
** from the beginning toward the end. In other words, the cursor is
** configured to use Next, not Prev.
@@ -87791,6 +89287,7 @@ case OP_Rewind: { /* jump */
int res;
assert( pOp->p1>=0 && pOp->p1nCursor );
+ assert( pOp->p5==0 );
pC = p->apCsr[pOp->p1];
assert( pC!=0 );
assert( isSorter(pC)==(pOp->opcode==OP_SorterSort) );
@@ -87805,9 +89302,6 @@ case OP_Rewind: { /* jump */
pCrsr = pC->uc.pCursor;
assert( pCrsr );
rc = sqlite3BtreeFirst(pCrsr, &res);
-#ifndef SQLITE_OMIT_WINDOWFUNC
- if( pOp->p5 ) sqlite3BtreeSkipNext(pCrsr);
-#endif
pC->deferredMoveto = 0;
pC->cacheStatus = CACHE_STALE;
}
@@ -87901,11 +89395,12 @@ case OP_Next: /* jump */
** The Prev opcode is only used after SeekLT, SeekLE, and Last. */
assert( pOp->opcode!=OP_Next
|| pC->seekOp==OP_SeekGT || pC->seekOp==OP_SeekGE
- || pC->seekOp==OP_Rewind || pC->seekOp==OP_Found
- || pC->seekOp==OP_NullRow);
+ || pC->seekOp==OP_Rewind || pC->seekOp==OP_Found
+ || pC->seekOp==OP_NullRow|| pC->seekOp==OP_SeekRowid
+ || pC->seekOp==OP_IfNoHope);
assert( pOp->opcode!=OP_Prev
|| pC->seekOp==OP_SeekLT || pC->seekOp==OP_SeekLE
- || pC->seekOp==OP_Last
+ || pC->seekOp==OP_Last || pC->seekOp==OP_IfNoHope
|| pC->seekOp==OP_NullRow);
rc = pOp->p4.xAdvance(pC->uc.pCursor, pOp->p3);
@@ -88420,11 +89915,11 @@ case OP_ParseSchema: {
{
zMaster = MASTER_NAME;
initData.db = db;
- initData.iDb = pOp->p1;
+ initData.iDb = iDb;
initData.pzErrMsg = &p->zErrMsg;
initData.mInitFlags = 0;
zSql = sqlite3MPrintf(db,
- "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
+ "SELECT*FROM\"%w\".%s WHERE %s ORDER BY rowid",
db->aDb[iDb].zDbSName, zMaster, pOp->p4.z);
if( zSql==0 ){
rc = SQLITE_NOMEM_BKPT;
@@ -88432,9 +89927,16 @@ case OP_ParseSchema: {
assert( db->init.busy==0 );
db->init.busy = 1;
initData.rc = SQLITE_OK;
+ initData.nInitRow = 0;
assert( !db->mallocFailed );
rc = sqlite3_exec(db, zSql, sqlite3InitCallback, &initData, 0);
if( rc==SQLITE_OK ) rc = initData.rc;
+ if( rc==SQLITE_OK && initData.nInitRow==0 ){
+ /* The OP_ParseSchema opcode with a non-NULL P4 argument should parse
+ ** at least one SQL statement. Any less than that indicates that
+ ** the sqlite_master table is corrupt. */
+ rc = SQLITE_CORRUPT_BKPT;
+ }
sqlite3DbFreeNN(db, zSql);
db->init.busy = 0;
}
@@ -88797,10 +90299,20 @@ case OP_Program: { /* jump */
p->nOp = pProgram->nOp;
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
p->anExec = 0;
+#endif
+#ifdef SQLITE_DEBUG
+ /* Verify that second and subsequent executions of the same trigger do not
+ ** try to reuse register values from the first use. */
+ {
+ int i;
+ for(i=0; inMem; i++){
+ aMem[i].pScopyFrom = 0; /* Prevent false-positive AboutToChange() errs */
+ aMem[i].flags |= MEM_Undefined; /* Cause a fault if this reg is reused */
+ }
+ }
#endif
pOp = &aOp[-1];
-
- break;
+ goto check_for_interrupt;
}
/* Opcode: Param P1 P2 * * *
@@ -89172,6 +90684,7 @@ case OP_AggFinal: {
assert( (pMem->flags & ~(MEM_Null|MEM_Agg))==0 );
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pOp->p3 ){
+ memAboutToChange(p, &aMem[pOp->p3]);
rc = sqlite3VdbeMemAggValue(pMem, &aMem[pOp->p3], pOp->p4.pFunc);
pMem = &aMem[pOp->p3];
}else
@@ -89336,14 +90849,19 @@ case OP_JournalMode: { /* out2 */
#endif /* SQLITE_OMIT_PRAGMA */
#if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH)
-/* Opcode: Vacuum P1 * * * *
+/* Opcode: Vacuum P1 P2 * * *
**
** Vacuum the entire database P1. P1 is 0 for "main", and 2 or more
** for an attached database. The "temp" database may not be vacuumed.
+**
+** If P2 is not zero, then it is a register holding a string which is
+** the file into which the result of vacuum should be written. When
+** P2 is zero, the vacuum overwrites the original database.
*/
case OP_Vacuum: {
assert( p->readOnly==0 );
- rc = sqlite3RunVacuum(&p->zErrMsg, db, pOp->p1);
+ rc = sqlite3RunVacuum(&p->zErrMsg, db, pOp->p1,
+ pOp->p2 ? &aMem[pOp->p2] : 0);
if( rc ) goto abort_due_to_error;
break;
}
@@ -89495,6 +91013,7 @@ case OP_VDestroy: {
db->nVDestroy++;
rc = sqlite3VtabCallDestroy(db, pOp->p1, pOp->p4.z);
db->nVDestroy--;
+ assert( p->errorAction==OE_Abort && p->usesStmtJournal );
if( rc ) goto abort_due_to_error;
break;
}
@@ -89617,10 +91136,11 @@ case OP_VFilter: { /* jump */
**
** If the VColumn opcode is being used to fetch the value of
** an unchanging column during an UPDATE operation, then the P5
-** value is 1. Otherwise, P5 is 0. The P5 value is returned
-** by sqlite3_vtab_nochange() routine and can be used
-** by virtual table implementations to return special "no-change"
-** marks which can be more efficient, depending on the virtual table.
+** value is OPFLAG_NOCHNG. This will cause the sqlite3_vtab_nochange()
+** function to return true inside the xColumn method of the virtual
+** table implementation. The P5 column might also contain other
+** bits (OPFLAG_LENGTHARG or OPFLAG_TYPEOFARG) but those bits are
+** unused by OP_VColumn.
*/
case OP_VColumn: {
sqlite3_vtab *pVtab;
@@ -89642,7 +91162,8 @@ case OP_VColumn: {
assert( pModule->xColumn );
memset(&sContext, 0, sizeof(sContext));
sContext.pOut = pDest;
- if( pOp->p5 ){
+ testcase( (pOp->p5 & OPFLAG_NOCHNG)==0 && pOp->p5!=0 );
+ if( pOp->p5 & OPFLAG_NOCHNG ){
sqlite3VdbeMemSetNull(pDest);
pDest->flags = MEM_Null|MEM_Zero;
pDest->u.nZero = 0;
@@ -89736,7 +91257,7 @@ case OP_VRename: {
rc = sqlite3VdbeChangeEncoding(pName, SQLITE_UTF8);
if( rc ) goto abort_due_to_error;
rc = pVtab->pModule->xRename(pVtab, pName->z);
- if( isLegacy==0 ) db->flags &= ~SQLITE_LegacyAlter;
+ if( isLegacy==0 ) db->flags &= ~(u64)SQLITE_LegacyAlter;
sqlite3VtabImportErrmsg(p, pVtab);
p->expired = 0;
if( rc ) goto abort_due_to_error;
@@ -90201,7 +91722,16 @@ abort_due_to_error:
** release the mutexes on btrees that were acquired at the
** top. */
vdbe_return:
- testcase( nVmStep>0 );
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+ while( nVmStep>=nProgressLimit && db->xProgress!=0 ){
+ nProgressLimit += db->nProgressOps;
+ if( db->xProgress(db->pProgressArg) ){
+ nProgressLimit = 0xffffffff;
+ rc = SQLITE_INTERRUPT;
+ goto abort_due_to_error;
+ }
+ }
+#endif
p->aCounter[SQLITE_STMTSTATUS_VM_STEP] += (int)nVmStep;
sqlite3VdbeLeave(p);
assert( rc!=SQLITE_OK || nExtraDelete==0
@@ -90596,11 +92126,12 @@ SQLITE_API int sqlite3_blob_close(sqlite3_blob *pBlob){
sqlite3 *db;
if( p ){
+ sqlite3_stmt *pStmt = p->pStmt;
db = p->db;
sqlite3_mutex_enter(db->mutex);
- rc = sqlite3_finalize(p->pStmt);
sqlite3DbFree(db, p);
sqlite3_mutex_leave(db->mutex);
+ rc = sqlite3_finalize(pStmt);
}else{
rc = SQLITE_OK;
}
@@ -91288,7 +92819,7 @@ static int vdbePmaReadBlob(
/* Extend the p->aAlloc[] allocation if required. */
if( p->nAllocnAlloc*2);
+ sqlite3_int64 nNew = MAX(128, 2*(sqlite3_int64)p->nAlloc);
while( nByte>nNew ) nNew = nNew*2;
aNew = sqlite3Realloc(p->aAlloc, nNew);
if( !aNew ) return SQLITE_NOMEM_BKPT;
@@ -91580,7 +93111,8 @@ static int vdbeSorterCompareText(
);
}
}else{
- if( pTask->pSorter->pKeyInfo->aSortOrder[0] ){
+ assert( !(pTask->pSorter->pKeyInfo->aSortFlags[0]&KEYINFO_ORDER_BIGNULL) );
+ if( pTask->pSorter->pKeyInfo->aSortFlags[0] ){
res = res * -1;
}
}
@@ -91648,7 +93180,8 @@ static int vdbeSorterCompareInt(
pTask, pbKey2Cached, pKey1, nKey1, pKey2, nKey2
);
}
- }else if( pTask->pSorter->pKeyInfo->aSortOrder[0] ){
+ }else if( pTask->pSorter->pKeyInfo->aSortFlags[0] ){
+ assert( !(pTask->pSorter->pKeyInfo->aSortFlags[0]&KEYINFO_ORDER_BIGNULL) );
res = res * -1;
}
@@ -91763,6 +93296,7 @@ SQLITE_PRIVATE int sqlite3VdbeSorterInit(
if( pKeyInfo->nAllField<13
&& (pKeyInfo->aColl[0]==0 || pKeyInfo->aColl[0]==db->pDfltColl)
+ && (pKeyInfo->aSortFlags[0] & KEYINFO_ORDER_BIGNULL)==0
){
pSorter->typeMask = SORTER_TYPE_INTEGER | SORTER_TYPE_TEXT;
}
@@ -92479,13 +94013,16 @@ static int vdbeSorterFlushPMA(VdbeSorter *pSorter){
rc = vdbeSorterListToPMA(&pSorter->aTask[nWorker], &pSorter->list);
}else{
/* Launch a background thread for this operation */
- u8 *aMem = pTask->list.aMemory;
- void *pCtx = (void*)pTask;
+ u8 *aMem;
+ void *pCtx;
+ assert( pTask!=0 );
assert( pTask->pThread==0 && pTask->bDone==0 );
assert( pTask->list.pList==0 );
assert( pTask->list.aMemory==0 || pSorter->list.aMemory!=0 );
+ aMem = pTask->list.aMemory;
+ pCtx = (void*)pTask;
pSorter->iPrev = (u8)(pTask - pSorter->aTask);
pTask->list = pSorter->list;
pSorter->list.pList = 0;
@@ -92579,15 +94116,19 @@ SQLITE_PRIVATE int sqlite3VdbeSorterWrite(
if( nMin>pSorter->nMemory ){
u8 *aNew;
- int iListOff = (u8*)pSorter->list.pList - pSorter->list.aMemory;
- int nNew = pSorter->nMemory * 2;
+ sqlite3_int64 nNew = 2 * (sqlite3_int64)pSorter->nMemory;
+ int iListOff = -1;
+ if( pSorter->list.pList ){
+ iListOff = (u8*)pSorter->list.pList - pSorter->list.aMemory;
+ }
while( nNew < nMin ) nNew = nNew*2;
if( nNew > pSorter->mxPmaSize ) nNew = pSorter->mxPmaSize;
if( nNew < nMin ) nNew = nMin;
-
aNew = sqlite3Realloc(pSorter->list.aMemory, nNew);
if( !aNew ) return SQLITE_NOMEM_BKPT;
- pSorter->list.pList = (SorterRecord*)&aNew[iListOff];
+ if( iListOff>=0 ){
+ pSorter->list.pList = (SorterRecord*)&aNew[iListOff];
+ }
pSorter->list.aMemory = aNew;
pSorter->nMemory = nNew;
}
@@ -93605,14 +95146,9 @@ static int memjrnlRead(
int iChunkOffset;
FileChunk *pChunk;
-#if defined(SQLITE_ENABLE_ATOMIC_WRITE) \
- || defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
if( (iAmt+iOfst)>p->endpoint.iOffset ){
return SQLITE_IOERR_SHORT_READ;
}
-#endif
-
- assert( (iAmt+iOfst)<=p->endpoint.iOffset );
assert( p->readpoint.iOffset==0 || p->readpoint.pChunk!=0 );
if( p->readpoint.iOffset!=iOfst || iOfst==0 ){
sqlite3_int64 iOff = 0;
@@ -93963,6 +95499,35 @@ SQLITE_PRIVATE int sqlite3JournalSize(sqlite3_vfs *pVfs){
/* #include */
+#if !defined(SQLITE_OMIT_WINDOWFUNC)
+/*
+** Walk all expressions linked into the list of Window objects passed
+** as the second argument.
+*/
+static int walkWindowList(Walker *pWalker, Window *pList){
+ Window *pWin;
+ for(pWin=pList; pWin; pWin=pWin->pNextWin){
+ int rc;
+ rc = sqlite3WalkExprList(pWalker, pWin->pOrderBy);
+ if( rc ) return WRC_Abort;
+ rc = sqlite3WalkExprList(pWalker, pWin->pPartition);
+ if( rc ) return WRC_Abort;
+ rc = sqlite3WalkExpr(pWalker, pWin->pFilter);
+ if( rc ) return WRC_Abort;
+
+ /* The next two are purely for calls to sqlite3RenameExprUnmap()
+ ** within sqlite3WindowOffsetExpr(). Because of constraints imposed
+ ** by sqlite3WindowOffsetExpr(), they can never fail. The results do
+ ** not matter anyhow. */
+ rc = sqlite3WalkExpr(pWalker, pWin->pStart);
+ if( NEVER(rc) ) return WRC_Abort;
+ rc = sqlite3WalkExpr(pWalker, pWin->pEnd);
+ if( NEVER(rc) ) return WRC_Abort;
+ }
+ return WRC_Continue;
+}
+#endif
+
/*
** Walk an expression tree. Invoke the callback once for each node
** of the expression, while descending. (In other words, the callback
@@ -93993,21 +95558,22 @@ static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){
if( pExpr->pLeft && walkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort;
assert( pExpr->x.pList==0 || pExpr->pRight==0 );
if( pExpr->pRight ){
+ assert( !ExprHasProperty(pExpr, EP_WinFunc) );
pExpr = pExpr->pRight;
continue;
}else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
+ assert( !ExprHasProperty(pExpr, EP_WinFunc) );
if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
- }else if( pExpr->x.pList ){
- if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
- }
+ }else{
+ if( pExpr->x.pList ){
+ if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
+ }
#ifndef SQLITE_OMIT_WINDOWFUNC
- if( !ExprHasProperty(pExpr, EP_Reduced) && pExpr->pWin ){
- Window *pWin = pExpr->pWin;
- if( sqlite3WalkExprList(pWalker, pWin->pPartition) ) return WRC_Abort;
- if( sqlite3WalkExprList(pWalker, pWin->pOrderBy) ) return WRC_Abort;
- if( sqlite3WalkExpr(pWalker, pWin->pFilter) ) return WRC_Abort;
- }
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ if( walkWindowList(pWalker, pExpr->y.pWin) ) return WRC_Abort;
+ }
#endif
+ }
}
break;
}
@@ -94045,6 +95611,17 @@ SQLITE_PRIVATE int sqlite3WalkSelectExpr(Walker *pWalker, Select *p){
if( sqlite3WalkExpr(pWalker, p->pHaving) ) return WRC_Abort;
if( sqlite3WalkExprList(pWalker, p->pOrderBy) ) return WRC_Abort;
if( sqlite3WalkExpr(pWalker, p->pLimit) ) return WRC_Abort;
+#if !defined(SQLITE_OMIT_WINDOWFUNC) && !defined(SQLITE_OMIT_ALTERTABLE)
+ {
+ Parse *pParse = pWalker->pParse;
+ if( pParse && IN_RENAME_OBJECT ){
+ /* The following may return WRC_Abort if there are unresolvable
+ ** symbols (e.g. a table that does not exist) in a window definition. */
+ int rc = walkWindowList(pWalker, p->pWinDefn);
+ return rc;
+ }
+ }
+#endif
return WRC_Continue;
}
@@ -94196,7 +95773,6 @@ static void resolveAlias(
if( pExpr->op==TK_COLLATE ){
pDup = sqlite3ExprAddCollateString(pParse, pDup, pExpr->u.zToken);
}
- ExprSetProperty(pDup, EP_Alias);
/* Before calling sqlite3ExprDelete(), set the EP_Static flag. This
** prevents ExprDelete() from deleting the Expr structure itself,
@@ -94213,6 +95789,13 @@ static void resolveAlias(
pExpr->u.zToken = sqlite3DbStrDup(db, pExpr->u.zToken);
pExpr->flags |= EP_MemToken;
}
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ if( pExpr->y.pWin!=0 ){
+ pExpr->y.pWin->pOwner = pExpr;
+ }else{
+ assert( db->mallocFailed );
+ }
+ }
sqlite3DbFree(db, pDup);
}
ExprSetProperty(pExpr, EP_Alias);
@@ -94265,6 +95848,23 @@ SQLITE_PRIVATE int sqlite3MatchSpanName(
return 1;
}
+/*
+** Return TRUE if the double-quoted string mis-feature should be supported.
+*/
+static int areDoubleQuotedStringsEnabled(sqlite3 *db, NameContext *pTopNC){
+ if( db->init.busy ) return 1; /* Always support for legacy schemas */
+ if( pTopNC->ncFlags & NC_IsDDL ){
+ /* Currently parsing a DDL statement */
+ if( sqlite3WritableSchema(db) && (db->flags & SQLITE_DqsDML)!=0 ){
+ return 1;
+ }
+ return (db->flags & SQLITE_DqsDDL)!=0;
+ }else{
+ /* Currently parsing a DML statement */
+ return (db->flags & SQLITE_DqsDML)!=0;
+ }
+}
+
/*
** Given the name of a column of the form X.Y.Z or Y.Z or just Z, look up
** that name in the set of source tables in pSrcList and make the pExpr
@@ -94275,7 +95875,7 @@ SQLITE_PRIVATE int sqlite3MatchSpanName(
** (even if X is implied).
** pExpr->iTable Set to the cursor number for the table obtained
** from pSrcList.
-** pExpr->pTab Points to the Table structure of X.Y (even if
+** pExpr->y.pTab Points to the Table structure of X.Y (even if
** X and/or Y are implied.)
** pExpr->iColumn Set to the column number within the table.
** pExpr->op Set to TK_COLUMN.
@@ -94319,7 +95919,6 @@ static int lookupName(
/* Initialize the node to no-match */
pExpr->iTable = -1;
- pExpr->pTab = 0;
ExprSetVVAProperty(pExpr, EP_NoReduce);
/* Translate the schema name in zDb into a pointer to the corresponding
@@ -94381,7 +95980,7 @@ static int lookupName(
continue;
}
if( IN_RENAME_OBJECT && pItem->zAlias ){
- sqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->pTab);
+ sqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->y.pTab);
}
}
if( 0==(cntTab++) ){
@@ -94407,13 +96006,13 @@ static int lookupName(
}
if( pMatch ){
pExpr->iTable = pMatch->iCursor;
- pExpr->pTab = pMatch->pTab;
+ pExpr->y.pTab = pMatch->pTab;
/* RIGHT JOIN not (yet) supported */
assert( (pMatch->fg.jointype & JT_RIGHT)==0 );
if( (pMatch->fg.jointype & JT_LEFT)!=0 ){
ExprSetProperty(pExpr, EP_CanBeNull);
}
- pSchema = pExpr->pTab->pSchema;
+ pSchema = pExpr->y.pTab->pSchema;
}
} /* if( pSrcList ) */
@@ -94470,7 +96069,7 @@ static int lookupName(
testcase( iCol==(-1) );
if( IN_RENAME_OBJECT ){
pExpr->iColumn = iCol;
- pExpr->pTab = pTab;
+ pExpr->y.pTab = pTab;
eNewExprOp = TK_COLUMN;
}else{
pExpr->iTable = pNC->uNC.pUpsert->regData + iCol;
@@ -94482,7 +96081,7 @@ static int lookupName(
{
#ifndef SQLITE_OMIT_TRIGGER
if( iCol<0 ){
- pExpr->affinity = SQLITE_AFF_INTEGER;
+ pExpr->affExpr = SQLITE_AFF_INTEGER;
}else if( pExpr->iTable==0 ){
testcase( iCol==31 );
testcase( iCol==32 );
@@ -94492,7 +96091,7 @@ static int lookupName(
testcase( iCol==32 );
pParse->newmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<pTab = pTab;
+ pExpr->y.pTab = pTab;
pExpr->iColumn = (i16)iCol;
eNewExprOp = TK_TRIGGER;
#endif /* SQLITE_OMIT_TRIGGER */
@@ -94514,7 +96113,7 @@ static int lookupName(
){
cnt = 1;
pExpr->iColumn = -1;
- pExpr->affinity = SQLITE_AFF_INTEGER;
+ pExpr->affExpr = SQLITE_AFF_INTEGER;
}
/*
@@ -94553,6 +96152,10 @@ static int lookupName(
sqlite3ErrorMsg(pParse, "misuse of aliased aggregate %s", zAs);
return WRC_Abort;
}
+ if( (pNC->ncFlags&NC_AllowWin)==0 && ExprHasProperty(pOrig, EP_Win) ){
+ sqlite3ErrorMsg(pParse, "misuse of aliased window function %s",zAs);
+ return WRC_Abort;
+ }
if( sqlite3ExprVectorSize(pOrig)!=1 ){
sqlite3ErrorMsg(pParse, "row value misused");
return WRC_Abort;
@@ -94590,9 +96193,30 @@ static int lookupName(
*/
if( cnt==0 && zTab==0 ){
assert( pExpr->op==TK_ID );
- if( ExprHasProperty(pExpr,EP_DblQuoted) ){
+ if( ExprHasProperty(pExpr,EP_DblQuoted)
+ && areDoubleQuotedStringsEnabled(db, pTopNC)
+ ){
+ /* If a double-quoted identifier does not match any known column name,
+ ** then treat it as a string.
+ **
+ ** This hack was added in the early days of SQLite in a misguided attempt
+ ** to be compatible with MySQL 3.x, which used double-quotes for strings.
+ ** I now sorely regret putting in this hack. The effect of this hack is
+ ** that misspelled identifier names are silently converted into strings
+ ** rather than causing an error, to the frustration of countless
+ ** programmers. To all those frustrated programmers, my apologies.
+ **
+ ** Someday, I hope to get rid of this hack. Unfortunately there is
+ ** a huge amount of legacy SQL that uses it. So for now, we just
+ ** issue a warning.
+ */
+ sqlite3_log(SQLITE_WARNING,
+ "double-quoted string literal: \"%w\"", zCol);
+#ifdef SQLITE_ENABLE_NORMALIZE
+ sqlite3VdbeAddDblquoteStr(db, pParse->pVdbe, zCol);
+#endif
pExpr->op = TK_STRING;
- pExpr->pTab = 0;
+ pExpr->y.pTab = 0;
return WRC_Prune;
}
if( sqlite3ExprIdToTrueFalse(pExpr) ){
@@ -94670,9 +96294,9 @@ SQLITE_PRIVATE Expr *sqlite3CreateColumnExpr(sqlite3 *db, SrcList *pSrc, int iSr
Expr *p = sqlite3ExprAlloc(db, TK_COLUMN, 0, 0);
if( p ){
struct SrcList_item *pItem = &pSrc->a[iSrc];
- p->pTab = pItem->pTab;
+ p->y.pTab = pItem->pTab;
p->iTable = pItem->iCursor;
- if( p->pTab->iPKey==iCol ){
+ if( p->y.pTab->iPKey==iCol ){
p->iColumn = -1;
}else{
p->iColumn = (ynVar)iCol;
@@ -94762,10 +96386,10 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
pItem = pSrcList->a;
assert( HasRowid(pItem->pTab) && pItem->pTab->pSelect==0 );
pExpr->op = TK_COLUMN;
- pExpr->pTab = pItem->pTab;
+ pExpr->y.pTab = pItem->pTab;
pExpr->iTable = pItem->iCursor;
pExpr->iColumn = -1;
- pExpr->affinity = SQLITE_AFF_INTEGER;
+ pExpr->affExpr = SQLITE_AFF_INTEGER;
break;
}
#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT)
@@ -94806,9 +96430,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
zColumn = pRight->u.zToken;
if( IN_RENAME_OBJECT ){
sqlite3RenameTokenRemap(pParse, (void*)pExpr, (void*)pRight);
- }
- if( IN_RENAME_OBJECT ){
- sqlite3RenameTokenRemap(pParse, (void*)&pExpr->pTab, (void*)pLeft);
+ sqlite3RenameTokenRemap(pParse, (void*)&pExpr->y.pTab, (void*)pLeft);
}
}
return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);
@@ -94826,7 +96448,10 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
const char *zId; /* The function name. */
FuncDef *pDef; /* Information about the function */
u8 enc = ENC(pParse->db); /* The database encoding */
-
+ int savedAllowFlags = (pNC->ncFlags & (NC_AllowAgg | NC_AllowWin));
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ Window *pWin = (IsWindowFunc(pExpr) ? pExpr->y.pWin : 0);
+#endif
assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
zId = pExpr->u.zToken;
nId = sqlite3Strlen30(zId);
@@ -94841,7 +96466,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}else{
is_agg = pDef->xFinalize!=0;
if( pDef->funcFlags & SQLITE_FUNC_UNLIKELY ){
- ExprSetProperty(pExpr, EP_Unlikely|EP_Skip);
+ ExprSetProperty(pExpr, EP_Unlikely);
if( n==2 ){
pExpr->iTable = exprProbability(pList->a[1].pExpr);
if( pExpr->iTable<0 ){
@@ -94890,6 +96515,24 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
notValid(pParse, pNC, "non-deterministic functions",
NC_IdxExpr|NC_PartIdx);
}
+ if( (pDef->funcFlags & SQLITE_FUNC_INTERNAL)!=0
+ && pParse->nested==0
+ && sqlite3Config.bInternalFunctions==0
+ ){
+ /* Internal-use-only functions are disallowed unless the
+ ** SQL is being compiled using sqlite3NestedParse() */
+ no_such_func = 1;
+ pDef = 0;
+ }else
+ if( (pDef->funcFlags & SQLITE_FUNC_DIRECT)!=0
+ && ExprHasProperty(pExpr, EP_Indirect)
+ && !IN_RENAME_OBJECT
+ ){
+ /* Functions tagged with SQLITE_DIRECTONLY may not be used
+ ** inside of triggers and views */
+ sqlite3ErrorMsg(pParse, "%s() prohibited in triggers and views",
+ pDef->zName);
+ }
}
if( 0==IN_RENAME_OBJECT ){
@@ -94898,18 +96541,18 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
|| (pDef->xValue==0 && pDef->xInverse==0)
|| (pDef->xValue && pDef->xInverse && pDef->xSFunc && pDef->xFinalize)
);
- if( pDef && pDef->xValue==0 && pExpr->pWin ){
+ if( pDef && pDef->xValue==0 && pWin ){
sqlite3ErrorMsg(pParse,
"%.*s() may not be used as a window function", nId, zId
);
pNC->nErr++;
}else if(
(is_agg && (pNC->ncFlags & NC_AllowAgg)==0)
- || (is_agg && (pDef->funcFlags & SQLITE_FUNC_WINDOW) && !pExpr->pWin)
- || (is_agg && pExpr->pWin && (pNC->ncFlags & NC_AllowWin)==0)
+ || (is_agg && (pDef->funcFlags&SQLITE_FUNC_WINDOW) && !pWin)
+ || (is_agg && pWin && (pNC->ncFlags & NC_AllowWin)==0)
){
const char *zType;
- if( (pDef->funcFlags & SQLITE_FUNC_WINDOW) || pExpr->pWin ){
+ if( (pDef->funcFlags & SQLITE_FUNC_WINDOW) || pWin ){
zType = "window";
}else{
zType = "aggregate";
@@ -94937,49 +96580,69 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
nId, zId);
pNC->nErr++;
}
- if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
- pNC->ncFlags &= ~(pExpr->pWin ? NC_AllowWin : NC_AllowAgg);
+ else if( is_agg==0 && ExprHasProperty(pExpr, EP_WinFunc) ){
+ sqlite3ErrorMsg(pParse,
+ "FILTER may not be used with non-aggregate %.*s()",
+ nId, zId
+ );
+ pNC->nErr++;
+ }
+#endif
+ if( is_agg ){
+ /* Window functions may not be arguments of aggregate functions.
+ ** Or arguments of other window functions. But aggregate functions
+ ** may be arguments for window functions. */
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ pNC->ncFlags &= ~(NC_AllowWin | (!pWin ? NC_AllowAgg : 0));
#else
pNC->ncFlags &= ~NC_AllowAgg;
#endif
}
}
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ else if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ is_agg = 1;
+ }
+#endif
sqlite3WalkExprList(pWalker, pList);
if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
- if( pExpr->pWin ){
+ if( pWin ){
Select *pSel = pNC->pWinSelect;
- sqlite3WalkExprList(pWalker, pExpr->pWin->pPartition);
- sqlite3WalkExprList(pWalker, pExpr->pWin->pOrderBy);
- sqlite3WalkExpr(pWalker, pExpr->pWin->pFilter);
- sqlite3WindowUpdate(pParse, pSel->pWinDefn, pExpr->pWin, pDef);
- if( 0==pSel->pWin
- || 0==sqlite3WindowCompare(pParse, pSel->pWin, pExpr->pWin)
- ){
- pExpr->pWin->pNextWin = pSel->pWin;
- pSel->pWin = pExpr->pWin;
+ assert( pWin==pExpr->y.pWin );
+ if( IN_RENAME_OBJECT==0 ){
+ sqlite3WindowUpdate(pParse, pSel->pWinDefn, pWin, pDef);
}
- pNC->ncFlags |= NC_AllowWin;
+ sqlite3WalkExprList(pWalker, pWin->pPartition);
+ sqlite3WalkExprList(pWalker, pWin->pOrderBy);
+ sqlite3WalkExpr(pWalker, pWin->pFilter);
+ sqlite3WindowLink(pSel, pWin);
+ pNC->ncFlags |= NC_HasWin;
}else
#endif /* SQLITE_OMIT_WINDOWFUNC */
{
NameContext *pNC2 = pNC;
pExpr->op = TK_AGG_FUNCTION;
pExpr->op2 = 0;
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ sqlite3WalkExpr(pWalker, pExpr->y.pWin->pFilter);
+ }
+#endif
while( pNC2 && !sqlite3FunctionUsesThisSrc(pExpr, pNC2->pSrcList) ){
pExpr->op2++;
pNC2 = pNC2->pNext;
}
- assert( pDef!=0 );
- if( pNC2 ){
+ assert( pDef!=0 || IN_RENAME_OBJECT );
+ if( pNC2 && pDef ){
assert( SQLITE_FUNC_MINMAX==NC_MinMaxAgg );
testcase( (pDef->funcFlags & SQLITE_FUNC_MINMAX)!=0 );
pNC2->ncFlags |= NC_HasAgg | (pDef->funcFlags & SQLITE_FUNC_MINMAX);
}
- pNC->ncFlags |= NC_AllowAgg;
}
+ pNC->ncFlags |= savedAllowFlags;
}
/* FIX ME: Compute pExpr->affinity based on the expected return
** type of the function
@@ -95010,11 +96673,11 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
}
case TK_IS:
case TK_ISNOT: {
- Expr *pRight;
+ Expr *pRight = sqlite3ExprSkipCollateAndLikely(pExpr->pRight);
assert( !ExprHasProperty(pExpr, EP_Reduced) );
/* Handle special cases of "x IS TRUE", "x IS FALSE", "x IS NOT TRUE",
** and "x IS NOT FALSE". */
- if( (pRight = pExpr->pRight)->op==TK_ID ){
+ if( pRight->op==TK_ID ){
int rc = resolveExprStep(pWalker, pRight);
if( rc==WRC_Abort ) return WRC_Abort;
if( pRight->op==TK_TRUEFALSE ){
@@ -95221,7 +96884,7 @@ static int resolveCompoundOrderBy(
int iCol = -1;
Expr *pE, *pDup;
if( pItem->done ) continue;
- pE = sqlite3ExprSkipCollate(pItem->pExpr);
+ pE = sqlite3ExprSkipCollateAndLikely(pItem->pExpr);
if( sqlite3ExprIsInteger(pE, &iCol) ){
if( iCol<=0 || iCol>pEList->nExpr ){
resolveOutOfRangeError(pParse, "ORDER", i+1, pEList->nExpr);
@@ -95230,32 +96893,53 @@ static int resolveCompoundOrderBy(
}else{
iCol = resolveAsName(pParse, pEList, pE);
if( iCol==0 ){
- pDup = sqlite3ExprDup(db, pE, 0);
+ /* Now test if expression pE matches one of the values returned
+ ** by pSelect. In the usual case this is done by duplicating the
+ ** expression, resolving any symbols in it, and then comparing
+ ** it against each expression returned by the SELECT statement.
+ ** Once the comparisons are finished, the duplicate expression
+ ** is deleted.
+ **
+ ** Or, if this is running as part of an ALTER TABLE operation,
+ ** resolve the symbols in the actual expression, not a duplicate.
+ ** And, if one of the comparisons is successful, leave the expression
+ ** as is instead of transforming it to an integer as in the usual
+ ** case. This allows the code in alter.c to modify column
+ ** refererences within the ORDER BY expression as required. */
+ if( IN_RENAME_OBJECT ){
+ pDup = pE;
+ }else{
+ pDup = sqlite3ExprDup(db, pE, 0);
+ }
if( !db->mallocFailed ){
assert(pDup);
iCol = resolveOrderByTermToExprList(pParse, pSelect, pDup);
}
- sqlite3ExprDelete(db, pDup);
+ if( !IN_RENAME_OBJECT ){
+ sqlite3ExprDelete(db, pDup);
+ }
}
}
if( iCol>0 ){
/* Convert the ORDER BY term into an integer column number iCol,
** taking care to preserve the COLLATE clause if it exists */
- Expr *pNew = sqlite3Expr(db, TK_INTEGER, 0);
- if( pNew==0 ) return 1;
- pNew->flags |= EP_IntValue;
- pNew->u.iValue = iCol;
- if( pItem->pExpr==pE ){
- pItem->pExpr = pNew;
- }else{
- Expr *pParent = pItem->pExpr;
- assert( pParent->op==TK_COLLATE );
- while( pParent->pLeft->op==TK_COLLATE ) pParent = pParent->pLeft;
- assert( pParent->pLeft==pE );
- pParent->pLeft = pNew;
+ if( !IN_RENAME_OBJECT ){
+ Expr *pNew = sqlite3Expr(db, TK_INTEGER, 0);
+ if( pNew==0 ) return 1;
+ pNew->flags |= EP_IntValue;
+ pNew->u.iValue = iCol;
+ if( pItem->pExpr==pE ){
+ pItem->pExpr = pNew;
+ }else{
+ Expr *pParent = pItem->pExpr;
+ assert( pParent->op==TK_COLLATE );
+ while( pParent->pLeft->op==TK_COLLATE ) pParent = pParent->pLeft;
+ assert( pParent->pLeft==pE );
+ pParent->pLeft = pNew;
+ }
+ sqlite3ExprDelete(db, pE);
+ pItem->u.x.iOrderByCol = (u16)iCol;
}
- sqlite3ExprDelete(db, pE);
- pItem->u.x.iOrderByCol = (u16)iCol;
pItem->done = 1;
}else{
moreToDo = 1;
@@ -95294,7 +96978,7 @@ SQLITE_PRIVATE int sqlite3ResolveOrderGroupBy(
ExprList *pEList;
struct ExprList_item *pItem;
- if( pOrderBy==0 || pParse->db->mallocFailed ) return 0;
+ if( pOrderBy==0 || pParse->db->mallocFailed || IN_RENAME_OBJECT ) return 0;
if( pOrderBy->nExpr>db->aLimit[SQLITE_LIMIT_COLUMN] ){
sqlite3ErrorMsg(pParse, "too many terms in %s BY clause", zType);
return 1;
@@ -95314,6 +96998,36 @@ SQLITE_PRIVATE int sqlite3ResolveOrderGroupBy(
return 0;
}
+#ifndef SQLITE_OMIT_WINDOWFUNC
+/*
+** Walker callback for windowRemoveExprFromSelect().
+*/
+static int resolveRemoveWindowsCb(Walker *pWalker, Expr *pExpr){
+ UNUSED_PARAMETER(pWalker);
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ Window *pWin = pExpr->y.pWin;
+ sqlite3WindowUnlinkFromSelect(pWin);
+ }
+ return WRC_Continue;
+}
+
+/*
+** Remove any Window objects owned by the expression pExpr from the
+** Select.pWin list of Select object pSelect.
+*/
+static void windowRemoveExprFromSelect(Select *pSelect, Expr *pExpr){
+ if( pSelect->pWin ){
+ Walker sWalker;
+ memset(&sWalker, 0, sizeof(Walker));
+ sWalker.xExprCallback = resolveRemoveWindowsCb;
+ sWalker.u.pSelect = pSelect;
+ sqlite3WalkExpr(&sWalker, pExpr);
+ }
+}
+#else
+# define windowRemoveExprFromSelect(a, b)
+#endif /* SQLITE_OMIT_WINDOWFUNC */
+
/*
** pOrderBy is an ORDER BY or GROUP BY clause in SELECT statement pSelect.
** The Name context of the SELECT statement is pNC. zType is either
@@ -95349,7 +97063,7 @@ static int resolveOrderGroupBy(
pParse = pNC->pParse;
for(i=0, pItem=pOrderBy->a; inExpr; i++, pItem++){
Expr *pE = pItem->pExpr;
- Expr *pE2 = sqlite3ExprSkipCollate(pE);
+ Expr *pE2 = sqlite3ExprSkipCollateAndLikely(pE);
if( zType[0]!='G' ){
iCol = resolveAsName(pParse, pSelect->pEList, pE2);
if( iCol>0 ){
@@ -95380,19 +97094,10 @@ static int resolveOrderGroupBy(
}
for(j=0; jpEList->nExpr; j++){
if( sqlite3ExprCompare(0, pE, pSelect->pEList->a[j].pExpr, -1)==0 ){
-#ifndef SQLITE_OMIT_WINDOWFUNC
- if( pE->pWin ){
- /* Since this window function is being changed into a reference
- ** to the same window function the result set, remove the instance
- ** of this window function from the Select.pWin list. */
- Window **pp;
- for(pp=&pSelect->pWin; *pp; pp=&(*pp)->pNextWin){
- if( *pp==pE->pWin ){
- *pp = (*pp)->pNextWin;
- }
- }
- }
-#endif
+ /* Since this expresion is being changed into a reference
+ ** to an identical expression in the result set, remove all Window
+ ** objects belonging to the expression from the Select.pWin list. */
+ windowRemoveExprFromSelect(pSelect, pE);
pItem->u.x.iOrderByCol = j+1;
}
}
@@ -95472,7 +97177,7 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
*/
for(i=0; ipSrc->nSrc; i++){
struct SrcList_item *pItem = &p->pSrc->a[i];
- if( pItem->pSelect ){
+ if( pItem->pSelect && (pItem->pSelect->selFlags & SF_Resolved)==0 ){
NameContext *pNC; /* Used to iterate name contexts */
int nRef = 0; /* Refcount for pOuterNC and outer contexts */
const char *zSavedContext = pParse->zAuthContext;
@@ -95604,6 +97309,19 @@ static int resolveSelectStep(Walker *pWalker, Select *p){
}
}
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( IN_RENAME_OBJECT ){
+ Window *pWin;
+ for(pWin=p->pWinDefn; pWin; pWin=pWin->pNextWin){
+ if( sqlite3ResolveExprListNames(&sNC, pWin->pOrderBy)
+ || sqlite3ResolveExprListNames(&sNC, pWin->pPartition)
+ ){
+ return WRC_Abort;
+ }
+ }
+ }
+#endif
+
/* If this is part of a compound SELECT, check that it has the right
** number of expressions in the select list. */
if( p->pNext && p->pEList->nExpr!=p->pNext->pEList->nExpr ){
@@ -95679,12 +97397,12 @@ SQLITE_PRIVATE int sqlite3ResolveExprNames(
NameContext *pNC, /* Namespace to resolve expressions in. */
Expr *pExpr /* The expression to be analyzed. */
){
- u16 savedHasAgg;
+ int savedHasAgg;
Walker w;
if( pExpr==0 ) return SQLITE_OK;
- savedHasAgg = pNC->ncFlags & (NC_HasAgg|NC_MinMaxAgg);
- pNC->ncFlags &= ~(NC_HasAgg|NC_MinMaxAgg);
+ savedHasAgg = pNC->ncFlags & (NC_HasAgg|NC_MinMaxAgg|NC_HasWin);
+ pNC->ncFlags &= ~(NC_HasAgg|NC_MinMaxAgg|NC_HasWin);
w.pParse = pNC->pParse;
w.xExprCallback = resolveExprStep;
w.xSelectCallback = resolveSelectStep;
@@ -95700,9 +97418,11 @@ SQLITE_PRIVATE int sqlite3ResolveExprNames(
#if SQLITE_MAX_EXPR_DEPTH>0
w.pParse->nHeight -= pExpr->nHeight;
#endif
- if( pNC->ncFlags & NC_HasAgg ){
- ExprSetProperty(pExpr, EP_Agg);
- }
+ assert( EP_Agg==NC_HasAgg );
+ assert( EP_Win==NC_HasWin );
+ testcase( pNC->ncFlags & NC_HasAgg );
+ testcase( pNC->ncFlags & NC_HasWin );
+ ExprSetProperty(pExpr, pNC->ncFlags & (NC_HasAgg|NC_HasWin) );
pNC->ncFlags |= savedHasAgg;
return pNC->nErr>0 || w.pParse->nErr>0;
}
@@ -95754,38 +97474,47 @@ SQLITE_PRIVATE void sqlite3ResolveSelectNames(
}
/*
-** Resolve names in expressions that can only reference a single table:
+** Resolve names in expressions that can only reference a single table
+** or which cannot reference any tables at all. Examples:
**
-** * CHECK constraints
-** * WHERE clauses on partial indices
+** (1) CHECK constraints
+** (2) WHERE clauses on partial indices
+** (3) Expressions in indexes on expressions
+** (4) Expression arguments to VACUUM INTO.
**
-** The Expr.iTable value for Expr.op==TK_COLUMN nodes of the expression
-** is set to -1 and the Expr.iColumn value is set to the column number.
+** In all cases except (4), the Expr.iTable value for Expr.op==TK_COLUMN
+** nodes of the expression is set to -1 and the Expr.iColumn value is
+** set to the column number. In case (4), TK_COLUMN nodes cause an error.
**
** Any errors cause an error message to be set in pParse.
*/
-SQLITE_PRIVATE void sqlite3ResolveSelfReference(
+SQLITE_PRIVATE int sqlite3ResolveSelfReference(
Parse *pParse, /* Parsing context */
- Table *pTab, /* The table being referenced */
- int type, /* NC_IsCheck or NC_PartIdx or NC_IdxExpr */
+ Table *pTab, /* The table being referenced, or NULL */
+ int type, /* NC_IsCheck or NC_PartIdx or NC_IdxExpr, or 0 */
Expr *pExpr, /* Expression to resolve. May be NULL. */
ExprList *pList /* Expression list to resolve. May be NULL. */
){
SrcList sSrc; /* Fake SrcList for pParse->pNewTable */
NameContext sNC; /* Name context for pParse->pNewTable */
+ int rc;
- assert( type==NC_IsCheck || type==NC_PartIdx || type==NC_IdxExpr );
+ assert( type==0 || pTab!=0 );
+ assert( type==NC_IsCheck || type==NC_PartIdx || type==NC_IdxExpr || pTab==0 );
memset(&sNC, 0, sizeof(sNC));
memset(&sSrc, 0, sizeof(sSrc));
- sSrc.nSrc = 1;
- sSrc.a[0].zName = pTab->zName;
- sSrc.a[0].pTab = pTab;
- sSrc.a[0].iCursor = -1;
+ if( pTab ){
+ sSrc.nSrc = 1;
+ sSrc.a[0].zName = pTab->zName;
+ sSrc.a[0].pTab = pTab;
+ sSrc.a[0].iCursor = -1;
+ }
sNC.pParse = pParse;
sNC.pSrcList = &sSrc;
- sNC.ncFlags = type;
- if( sqlite3ResolveExprNames(&sNC, pExpr) ) return;
- if( pList ) sqlite3ResolveExprListNames(&sNC, pList);
+ sNC.ncFlags = type | NC_IsDDL;
+ if( (rc = sqlite3ResolveExprNames(&sNC, pExpr))!=SQLITE_OK ) return rc;
+ if( pList ) rc = sqlite3ResolveExprListNames(&sNC, pList);
+ return rc;
}
/************** End of resolve.c *********************************************/
@@ -95836,8 +97565,11 @@ SQLITE_PRIVATE char sqlite3TableColumnAffinity(Table *pTab, int iCol){
*/
SQLITE_PRIVATE char sqlite3ExprAffinity(Expr *pExpr){
int op;
- pExpr = sqlite3ExprSkipCollate(pExpr);
- if( pExpr->flags & EP_Generic ) return 0;
+ while( ExprHasProperty(pExpr, EP_Skip) ){
+ assert( pExpr->op==TK_COLLATE );
+ pExpr = pExpr->pLeft;
+ assert( pExpr!=0 );
+ }
op = pExpr->op;
if( op==TK_SELECT ){
assert( pExpr->flags&EP_xIsSelect );
@@ -95850,8 +97582,8 @@ SQLITE_PRIVATE char sqlite3ExprAffinity(Expr *pExpr){
return sqlite3AffinityType(pExpr->u.zToken, 0);
}
#endif
- if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->pTab ){
- return sqlite3TableColumnAffinity(pExpr->pTab, pExpr->iColumn);
+ if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->y.pTab ){
+ return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
}
if( op==TK_SELECT_COLUMN ){
assert( pExpr->pLeft->flags&EP_xIsSelect );
@@ -95859,7 +97591,7 @@ SQLITE_PRIVATE char sqlite3ExprAffinity(Expr *pExpr){
pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr
);
}
- return pExpr->affinity;
+ return pExpr->affExpr;
}
/*
@@ -95894,11 +97626,23 @@ SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse *pParse, Expr *pExpr, con
}
/*
-** Skip over any TK_COLLATE operators and any unlikely()
-** or likelihood() function at the root of an expression.
+** Skip over any TK_COLLATE operators.
*/
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr *pExpr){
while( pExpr && ExprHasProperty(pExpr, EP_Skip) ){
+ assert( pExpr->op==TK_COLLATE );
+ pExpr = pExpr->pLeft;
+ }
+ return pExpr;
+}
+
+/*
+** Skip over any TK_COLLATE operators and/or any unlikely()
+** or likelihood() or likely() functions at the root of an
+** expression.
+*/
+SQLITE_PRIVATE Expr *sqlite3ExprSkipCollateAndLikely(Expr *pExpr){
+ while( pExpr && ExprHasProperty(pExpr, EP_Skip|EP_Unlikely) ){
if( ExprHasProperty(pExpr, EP_Unlikely) ){
assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
assert( pExpr->x.pList->nExpr>0 );
@@ -95932,16 +97676,15 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
Expr *p = pExpr;
while( p ){
int op = p->op;
- if( p->flags & EP_Generic ) break;
- if( (op==TK_AGG_COLUMN || op==TK_COLUMN
- || op==TK_REGISTER || op==TK_TRIGGER)
- && p->pTab!=0
+ if( op==TK_REGISTER ) op = p->op2;
+ if( (op==TK_AGG_COLUMN || op==TK_COLUMN || op==TK_TRIGGER)
+ && p->y.pTab!=0
){
- /* op==TK_REGISTER && p->pTab!=0 happens when pExpr was originally
+ /* op==TK_REGISTER && p->y.pTab!=0 happens when pExpr was originally
** a TK_COLUMN but was previously evaluated and cached in a register */
int j = p->iColumn;
if( j>=0 ){
- const char *zColl = p->pTab->aCol[j].zColl;
+ const char *zColl = p->y.pTab->aCol[j].zColl;
pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0);
}
break;
@@ -95950,7 +97693,7 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
p = p->pLeft;
continue;
}
- if( op==TK_COLLATE || (op==TK_REGISTER && p->op2==TK_COLLATE) ){
+ if( op==TK_COLLATE ){
pColl = sqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken);
break;
}
@@ -96018,7 +97761,7 @@ SQLITE_PRIVATE int sqlite3ExprCollSeqMatch(Parse *pParse, Expr *pE1, Expr *pE2){
*/
SQLITE_PRIVATE char sqlite3CompareAffinity(Expr *pExpr, char aff2){
char aff1 = sqlite3ExprAffinity(pExpr);
- if( aff1 && aff2 ){
+ if( aff1>SQLITE_AFF_NONE && aff2>SQLITE_AFF_NONE ){
/* Both sides of the comparison are columns. If one has numeric
** affinity, use that. Otherwise use no affinity.
*/
@@ -96027,15 +97770,10 @@ SQLITE_PRIVATE char sqlite3CompareAffinity(Expr *pExpr, char aff2){
}else{
return SQLITE_AFF_BLOB;
}
- }else if( !aff1 && !aff2 ){
- /* Neither side of the comparison is a column. Compare the
- ** results directly.
- */
- return SQLITE_AFF_BLOB;
}else{
/* One side is a column, the other is not. Use the columns affinity. */
- assert( aff1==0 || aff2==0 );
- return (aff1 + aff2);
+ assert( aff1<=SQLITE_AFF_NONE || aff2<=SQLITE_AFF_NONE );
+ return (aff1<=SQLITE_AFF_NONE ? aff2 : aff1) | SQLITE_AFF_NONE;
}
}
@@ -96068,14 +97806,13 @@ static char comparisonAffinity(Expr *pExpr){
*/
SQLITE_PRIVATE int sqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity){
char aff = comparisonAffinity(pExpr);
- switch( aff ){
- case SQLITE_AFF_BLOB:
- return 1;
- case SQLITE_AFF_TEXT:
- return idx_affinity==SQLITE_AFF_TEXT;
- default:
- return sqlite3IsNumericAffinity(idx_affinity);
+ if( affop==TK_VECTOR ) pVector = pVector->x.pList->a[iField].pExpr;
pRet = sqlite3ExprDup(pParse->db, pVector, 0);
+ sqlite3RenameTokenRemap(pParse, pRet, pVector);
}
return pRet;
}
@@ -96273,7 +98011,7 @@ static int exprCodeSubselect(Parse *pParse, Expr *pExpr){
int reg = 0;
#ifndef SQLITE_OMIT_SUBQUERY
if( pExpr->op==TK_SELECT ){
- reg = sqlite3CodeSubselect(pParse, pExpr, 0, 0);
+ reg = sqlite3CodeSubselect(pParse, pExpr);
}
#endif
return reg;
@@ -96345,7 +98083,7 @@ static void codeVectorCompare(
int regLeft = 0;
int regRight = 0;
u8 opx = op;
- int addrDone = sqlite3VdbeMakeLabel(v);
+ int addrDone = sqlite3VdbeMakeLabel(pParse);
if( nLeft!=sqlite3ExprVectorSize(pRight) ){
sqlite3ErrorMsg(pParse, "row value misused");
@@ -96564,7 +98302,7 @@ SQLITE_PRIVATE Expr *sqlite3ExprAlloc(
pNew->iAgg = -1;
if( pToken ){
if( nExtra==0 ){
- pNew->flags |= EP_IntValue|EP_Leaf;
+ pNew->flags |= EP_IntValue|EP_Leaf|(iValue?EP_IsTrue:EP_IsFalse);
pNew->u.iValue = iValue;
}else{
pNew->u.zToken = (char*)&pNew[1];
@@ -96572,8 +98310,7 @@ SQLITE_PRIVATE Expr *sqlite3ExprAlloc(
if( pToken->n ) memcpy(pNew->u.zToken, pToken->z, pToken->n);
pNew->u.zToken[pToken->n] = 0;
if( dequote && sqlite3Isquote(pNew->u.zToken[0]) ){
- if( pNew->u.zToken[0]=='"' ) pNew->flags |= EP_DblQuoted;
- sqlite3Dequote(pNew->u.zToken);
+ sqlite3DequoteExpr(pNew);
}
}
}
@@ -96642,20 +98379,16 @@ SQLITE_PRIVATE Expr *sqlite3PExpr(
Expr *pRight /* Right operand */
){
Expr *p;
- if( op==TK_AND && pParse->nErr==0 ){
- /* Take advantage of short-circuit false optimization for AND */
- p = sqlite3ExprAnd(pParse->db, pLeft, pRight);
- }else{
- p = sqlite3DbMallocRawNN(pParse->db, sizeof(Expr));
- if( p ){
- memset(p, 0, sizeof(Expr));
- p->op = op & TKFLG_MASK;
- p->iAgg = -1;
- }
+ p = sqlite3DbMallocRawNN(pParse->db, sizeof(Expr));
+ if( p ){
+ memset(p, 0, sizeof(Expr));
+ p->op = op & 0xff;
+ p->iAgg = -1;
sqlite3ExprAttachSubtrees(pParse->db, p, pLeft, pRight);
- }
- if( p ) {
sqlite3ExprCheckHeight(pParse, p->nHeight);
+ }else{
+ sqlite3ExprDelete(pParse->db, pLeft);
+ sqlite3ExprDelete(pParse->db, pRight);
}
return p;
}
@@ -96676,33 +98409,6 @@ SQLITE_PRIVATE void sqlite3PExprAddSelect(Parse *pParse, Expr *pExpr, Select *pS
}
-/*
-** If the expression is always either TRUE or FALSE (respectively),
-** then return 1. If one cannot determine the truth value of the
-** expression at compile-time return 0.
-**
-** This is an optimization. If is OK to return 0 here even if
-** the expression really is always false or false (a false negative).
-** But it is a bug to return 1 if the expression might have different
-** boolean values in different circumstances (a false positive.)
-**
-** Note that if the expression is part of conditional for a
-** LEFT JOIN, then we cannot determine at compile-time whether or not
-** is it true or false, so always return 0.
-*/
-static int exprAlwaysTrue(Expr *p){
- int v = 0;
- if( ExprHasProperty(p, EP_FromJoin) ) return 0;
- if( !sqlite3ExprIsInteger(p, &v) ) return 0;
- return v!=0;
-}
-static int exprAlwaysFalse(Expr *p){
- int v = 0;
- if( ExprHasProperty(p, EP_FromJoin) ) return 0;
- if( !sqlite3ExprIsInteger(p, &v) ) return 0;
- return v==0;
-}
-
/*
** Join two expressions using an AND operator. If either expression is
** NULL, then just return the other expression.
@@ -96711,19 +98417,18 @@ static int exprAlwaysFalse(Expr *p){
** of returning an AND expression, just return a constant expression with
** a value of false.
*/
-SQLITE_PRIVATE Expr *sqlite3ExprAnd(sqlite3 *db, Expr *pLeft, Expr *pRight){
- if( pLeft==0 ){
+SQLITE_PRIVATE Expr *sqlite3ExprAnd(Parse *pParse, Expr *pLeft, Expr *pRight){
+ sqlite3 *db = pParse->db;
+ if( pLeft==0 ){
return pRight;
}else if( pRight==0 ){
return pLeft;
- }else if( exprAlwaysFalse(pLeft) || exprAlwaysFalse(pRight) ){
- sqlite3ExprDelete(db, pLeft);
- sqlite3ExprDelete(db, pRight);
- return sqlite3ExprAlloc(db, TK_INTEGER, &sqlite3IntTokens[0], 0);
+ }else if( ExprAlwaysFalse(pLeft) || ExprAlwaysFalse(pRight) ){
+ sqlite3ExprUnmapAndDelete(pParse, pLeft);
+ sqlite3ExprUnmapAndDelete(pParse, pRight);
+ return sqlite3Expr(db, TK_INTEGER, "0");
}else{
- Expr *pNew = sqlite3ExprAlloc(db, TK_AND, 0, 0);
- sqlite3ExprAttachSubtrees(db, pNew, pLeft, pRight);
- return pNew;
+ return sqlite3PExpr(pParse, TK_AND, pLeft, pRight);
}
}
@@ -96844,6 +98549,10 @@ static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){
assert( p!=0 );
/* Sanity check: Assert that the IntValue is non-negative if it exists */
assert( !ExprHasProperty(p, EP_IntValue) || p->u.iValue>=0 );
+
+ assert( !ExprHasProperty(p, EP_WinFunc) || p->y.pWin!=0 || db->mallocFailed );
+ assert( p->op!=TK_FUNCTION || ExprHasProperty(p, EP_TokenOnly|EP_Reduced)
+ || p->y.pWin==0 || ExprHasProperty(p, EP_WinFunc) );
#ifdef SQLITE_DEBUG
if( ExprHasProperty(p, EP_Leaf) && !ExprHasProperty(p, EP_TokenOnly) ){
assert( p->pLeft==0 );
@@ -96856,14 +98565,18 @@ static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){
assert( p->x.pList==0 || p->pRight==0 );
if( p->pLeft && p->op!=TK_SELECT_COLUMN ) sqlite3ExprDeleteNN(db, p->pLeft);
if( p->pRight ){
+ assert( !ExprHasProperty(p, EP_WinFunc) );
sqlite3ExprDeleteNN(db, p->pRight);
}else if( ExprHasProperty(p, EP_xIsSelect) ){
+ assert( !ExprHasProperty(p, EP_WinFunc) );
sqlite3SelectDelete(db, p->x.pSelect);
}else{
sqlite3ExprListDelete(db, p->x.pList);
- }
- if( !ExprHasProperty(p, EP_Reduced) ){
- sqlite3WindowDelete(db, p->pWin);
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( ExprHasProperty(p, EP_WinFunc) ){
+ sqlite3WindowDelete(db, p->y.pWin);
+ }
+#endif
}
}
if( ExprHasProperty(p, EP_MemToken) ) sqlite3DbFree(db, p->u.zToken);
@@ -96875,6 +98588,18 @@ SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3 *db, Expr *p){
if( p ) sqlite3ExprDeleteNN(db, p);
}
+/* Invoke sqlite3RenameExprUnmap() and sqlite3ExprDelete() on the
+** expression.
+*/
+SQLITE_PRIVATE void sqlite3ExprUnmapAndDelete(Parse *pParse, Expr *p){
+ if( p ){
+ if( IN_RENAME_OBJECT ){
+ sqlite3RenameExprUnmap(pParse, p);
+ }
+ sqlite3ExprDeleteNN(pParse->db, p);
+ }
+}
+
/*
** Return the number of bytes allocated for the expression structure
** passed as the first argument. This is always one of EXPR_FULLSIZE,
@@ -96927,7 +98652,7 @@ static int dupedExprStructSize(Expr *p, int flags){
assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 );
if( 0==flags || p->op==TK_SELECT_COLUMN
#ifndef SQLITE_OMIT_WINDOWFUNC
- || p->pWin
+ || ExprHasProperty(p, EP_WinFunc)
#endif
){
nSize = EXPR_FULLSIZE;
@@ -96954,7 +98679,7 @@ static int dupedExprStructSize(Expr *p, int flags){
static int dupedExprNodeSize(Expr *p, int flags){
int nByte = dupedExprStructSize(p, flags) & 0xfff;
if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
- nByte += sqlite3Strlen30(p->u.zToken)+1;
+ nByte += sqlite3Strlen30NN(p->u.zToken)+1;
}
return ROUND8(nByte);
}
@@ -97057,22 +98782,24 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
}
/* Fill in pNew->pLeft and pNew->pRight. */
- zAlloc += dupedExprNodeSize(p, dupFlags);
- if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly) ){
+ if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly|EP_WinFunc) ){
+ zAlloc += dupedExprNodeSize(p, dupFlags);
if( !ExprHasProperty(pNew, EP_TokenOnly|EP_Leaf) ){
pNew->pLeft = p->pLeft ?
exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0;
pNew->pRight = p->pRight ?
exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0;
}
- }else{
#ifndef SQLITE_OMIT_WINDOWFUNC
- if( ExprHasProperty(p, EP_Reduced|EP_TokenOnly) ){
- pNew->pWin = 0;
- }else{
- pNew->pWin = sqlite3WindowDup(db, pNew, p->pWin);
+ if( ExprHasProperty(p, EP_WinFunc) ){
+ pNew->y.pWin = sqlite3WindowDup(db, pNew, p->y.pWin);
+ assert( ExprHasProperty(pNew, EP_WinFunc) );
}
#endif /* SQLITE_OMIT_WINDOWFUNC */
+ if( pzBuffer ){
+ *pzBuffer = zAlloc;
+ }
+ }else{
if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
if( pNew->op==TK_SELECT_COLUMN ){
pNew->pLeft = p->pLeft;
@@ -97084,9 +98811,6 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
pNew->pRight = sqlite3ExprDup(db, p->pRight, 0);
}
}
- if( pzBuffer ){
- *pzBuffer = zAlloc;
- }
}
return pNew;
}
@@ -97100,7 +98824,7 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
static With *withDup(sqlite3 *db, With *p){
With *pRet = 0;
if( p ){
- int nByte = sizeof(*p) + sizeof(p->a[0]) * (p->nCte-1);
+ sqlite3_int64 nByte = sizeof(*p) + sizeof(p->a[0]) * (p->nCte-1);
pRet = sqlite3DbMallocZero(db, nByte);
if( pRet ){
int i;
@@ -97118,6 +98842,39 @@ static With *withDup(sqlite3 *db, With *p){
# define withDup(x,y) 0
#endif
+#ifndef SQLITE_OMIT_WINDOWFUNC
+/*
+** The gatherSelectWindows() procedure and its helper routine
+** gatherSelectWindowsCallback() are used to scan all the expressions
+** an a newly duplicated SELECT statement and gather all of the Window
+** objects found there, assembling them onto the linked list at Select->pWin.
+*/
+static int gatherSelectWindowsCallback(Walker *pWalker, Expr *pExpr){
+ if( pExpr->op==TK_FUNCTION && ExprHasProperty(pExpr, EP_WinFunc) ){
+ Select *pSelect = pWalker->u.pSelect;
+ Window *pWin = pExpr->y.pWin;
+ assert( pWin );
+ assert( IsWindowFunc(pExpr) );
+ assert( pWin->ppThis==0 );
+ sqlite3WindowLink(pSelect, pWin);
+ }
+ return WRC_Continue;
+}
+static int gatherSelectWindowsSelectCallback(Walker *pWalker, Select *p){
+ return p==pWalker->u.pSelect ? WRC_Continue : WRC_Prune;
+}
+static void gatherSelectWindows(Select *p){
+ Walker w;
+ w.xExprCallback = gatherSelectWindowsCallback;
+ w.xSelectCallback = gatherSelectWindowsSelectCallback;
+ w.xSelectCallback2 = 0;
+ w.pParse = 0;
+ w.u.pSelect = p;
+ sqlite3WalkSelect(&w, p);
+}
+#endif
+
+
/*
** The following group of routines make deep copies of expressions,
** expression lists, ID lists, and select statements. The copies can
@@ -97173,8 +98930,9 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3 *db, ExprList *p, int flags)
}
pItem->zName = sqlite3DbStrDup(db, pOldItem->zName);
pItem->zSpan = sqlite3DbStrDup(db, pOldItem->zSpan);
- pItem->sortOrder = pOldItem->sortOrder;
+ pItem->sortFlags = pOldItem->sortFlags;
pItem->done = 0;
+ pItem->bNulls = pOldItem->bNulls;
pItem->bSpanIsTab = pOldItem->bSpanIsTab;
pItem->bSorterRef = pOldItem->bSorterRef;
pItem->u = pOldItem->u;
@@ -97285,6 +99043,7 @@ SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3 *db, Select *pDup, int flags){
#ifndef SQLITE_OMIT_WINDOWFUNC
pNew->pWin = 0;
pNew->pWinDefn = sqlite3WindowListDup(db, p->pWinDefn);
+ if( p->pWin && db->mallocFailed==0 ) gatherSelectWindows(pNew);
#endif
pNew->selId = p->selId;
*pp = pNew;
@@ -97334,7 +99093,7 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(
}else if( (pList->nExpr & (pList->nExpr-1))==0 ){
ExprList *pNew;
pNew = sqlite3DbRealloc(db, pList,
- sizeof(*pList)+(2*pList->nExpr - 1)*sizeof(pList->a[0]));
+ sizeof(*pList)+(2*(sqlite3_int64)pList->nExpr-1)*sizeof(pList->a[0]));
if( pNew==0 ){
goto no_mem;
}
@@ -97393,6 +99152,10 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListAppendVector(
for(i=0; inId; i++){
Expr *pSubExpr = sqlite3ExprForVectorField(pParse, pExpr, i);
+ assert( pSubExpr!=0 || db->mallocFailed );
+ assert( pSubExpr==0 || pSubExpr->iTable==0 );
+ if( pSubExpr==0 ) continue;
+ pSubExpr->iTable = pColumns->nId;
pList = sqlite3ExprListAppend(pParse, pList, pSubExpr);
if( pList ){
assert( pList->nExpr==iFirst+i+1 );
@@ -97417,7 +99180,7 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListAppendVector(
}
vector_append_error:
- sqlite3ExprDelete(db, pExpr);
+ sqlite3ExprUnmapAndDelete(pParse, pExpr);
sqlite3IdListDelete(db, pColumns);
return pList;
}
@@ -97425,15 +99188,34 @@ vector_append_error:
/*
** Set the sort order for the last element on the given ExprList.
*/
-SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList *p, int iSortOrder){
+SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList *p, int iSortOrder, int eNulls){
+ struct ExprList_item *pItem;
if( p==0 ) return;
- assert( SQLITE_SO_UNDEFINED<0 && SQLITE_SO_ASC>=0 && SQLITE_SO_DESC>0 );
assert( p->nExpr>0 );
- if( iSortOrder<0 ){
- assert( p->a[p->nExpr-1].sortOrder==SQLITE_SO_ASC );
- return;
+
+ assert( SQLITE_SO_UNDEFINED<0 && SQLITE_SO_ASC==0 && SQLITE_SO_DESC>0 );
+ assert( iSortOrder==SQLITE_SO_UNDEFINED
+ || iSortOrder==SQLITE_SO_ASC
+ || iSortOrder==SQLITE_SO_DESC
+ );
+ assert( eNulls==SQLITE_SO_UNDEFINED
+ || eNulls==SQLITE_SO_ASC
+ || eNulls==SQLITE_SO_DESC
+ );
+
+ pItem = &p->a[p->nExpr-1];
+ assert( pItem->bNulls==0 );
+ if( iSortOrder==SQLITE_SO_UNDEFINED ){
+ iSortOrder = SQLITE_SO_ASC;
+ }
+ pItem->sortFlags = (u8)iSortOrder;
+
+ if( eNulls!=SQLITE_SO_UNDEFINED ){
+ pItem->bNulls = 1;
+ if( iSortOrder!=eNulls ){
+ pItem->sortFlags |= KEYINFO_ORDER_BIGNULL;
+ }
}
- p->a[p->nExpr-1].sortOrder = (u8)iSortOrder;
}
/*
@@ -97560,10 +99342,12 @@ SQLITE_PRIVATE int sqlite3SelectWalkFail(Walker *pWalker, Select *NotUsed){
*/
SQLITE_PRIVATE int sqlite3ExprIdToTrueFalse(Expr *pExpr){
assert( pExpr->op==TK_ID || pExpr->op==TK_STRING );
- if( sqlite3StrICmp(pExpr->u.zToken, "true")==0
- || sqlite3StrICmp(pExpr->u.zToken, "false")==0
+ if( !ExprHasProperty(pExpr, EP_Quoted)
+ && (sqlite3StrICmp(pExpr->u.zToken, "true")==0
+ || sqlite3StrICmp(pExpr->u.zToken, "false")==0)
){
pExpr->op = TK_TRUEFALSE;
+ ExprSetProperty(pExpr, pExpr->u.zToken[4]==0 ? EP_IsTrue : EP_IsFalse);
return 1;
}
return 0;
@@ -97574,12 +99358,40 @@ SQLITE_PRIVATE int sqlite3ExprIdToTrueFalse(Expr *pExpr){
** and 0 if it is FALSE.
*/
SQLITE_PRIVATE int sqlite3ExprTruthValue(const Expr *pExpr){
+ pExpr = sqlite3ExprSkipCollate((Expr*)pExpr);
assert( pExpr->op==TK_TRUEFALSE );
assert( sqlite3StrICmp(pExpr->u.zToken,"true")==0
|| sqlite3StrICmp(pExpr->u.zToken,"false")==0 );
return pExpr->u.zToken[4]==0;
}
+/*
+** If pExpr is an AND or OR expression, try to simplify it by eliminating
+** terms that are always true or false. Return the simplified expression.
+** Or return the original expression if no simplification is possible.
+**
+** Examples:
+**
+** (x<10) AND true => (x<10)
+** (x<10) AND false => false
+** (x<10) AND (y=22 OR false) => (x<10) AND (y=22)
+** (x<10) AND (y=22 OR true) => (x<10)
+** (y=22) OR true => true
+*/
+SQLITE_PRIVATE Expr *sqlite3ExprSimplifiedAndOr(Expr *pExpr){
+ assert( pExpr!=0 );
+ if( pExpr->op==TK_AND || pExpr->op==TK_OR ){
+ Expr *pRight = sqlite3ExprSimplifiedAndOr(pExpr->pRight);
+ Expr *pLeft = sqlite3ExprSimplifiedAndOr(pExpr->pLeft);
+ if( ExprAlwaysTrue(pLeft) || ExprAlwaysFalse(pRight) ){
+ pExpr = pExpr->op==TK_AND ? pRight : pLeft;
+ }else if( ExprAlwaysTrue(pRight) || ExprAlwaysFalse(pLeft) ){
+ pExpr = pExpr->op==TK_AND ? pLeft : pRight;
+ }
+ }
+ return pExpr;
+}
+
/*
** These routines are Walker callbacks used to check expressions to
@@ -97824,7 +99636,7 @@ SQLITE_PRIVATE int sqlite3ExprContainsSubquery(Expr *p){
*/
SQLITE_PRIVATE int sqlite3ExprIsInteger(Expr *p, int *pValue){
int rc = 0;
- if( p==0 ) return 0; /* Can only happen following on OOM */
+ if( NEVER(p==0) ) return 0; /* Used to only happen following on OOM */
/* If an expression is an integer literal that fits in a signed 32-bit
** integer, then the EP_IntValue flag will have already been set */
@@ -97870,7 +99682,9 @@ SQLITE_PRIVATE int sqlite3ExprIsInteger(Expr *p, int *pValue){
*/
SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr *p){
u8 op;
- while( p->op==TK_UPLUS || p->op==TK_UMINUS ){ p = p->pLeft; }
+ while( p->op==TK_UPLUS || p->op==TK_UMINUS ){
+ p = p->pLeft;
+ }
op = p->op;
if( op==TK_REGISTER ) op = p->op2;
switch( op ){
@@ -97881,8 +99695,8 @@ SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr *p){
return 0;
case TK_COLUMN:
return ExprHasProperty(p, EP_CanBeNull) ||
- p->pTab==0 || /* Reference to column of index on expression */
- (p->iColumn>=0 && p->pTab->aCol[p->iColumn].notNull==0);
+ p->y.pTab==0 || /* Reference to column of index on expression */
+ (p->iColumn>=0 && p->y.pTab->aCol[p->iColumn].notNull==0);
default:
return 1;
}
@@ -97900,27 +99714,30 @@ SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr *p){
*/
SQLITE_PRIVATE int sqlite3ExprNeedsNoAffinityChange(const Expr *p, char aff){
u8 op;
+ int unaryMinus = 0;
if( aff==SQLITE_AFF_BLOB ) return 1;
- while( p->op==TK_UPLUS || p->op==TK_UMINUS ){ p = p->pLeft; }
+ while( p->op==TK_UPLUS || p->op==TK_UMINUS ){
+ if( p->op==TK_UMINUS ) unaryMinus = 1;
+ p = p->pLeft;
+ }
op = p->op;
if( op==TK_REGISTER ) op = p->op2;
switch( op ){
case TK_INTEGER: {
- return aff==SQLITE_AFF_INTEGER || aff==SQLITE_AFF_NUMERIC;
+ return aff>=SQLITE_AFF_NUMERIC;
}
case TK_FLOAT: {
- return aff==SQLITE_AFF_REAL || aff==SQLITE_AFF_NUMERIC;
+ return aff>=SQLITE_AFF_NUMERIC;
}
case TK_STRING: {
- return aff==SQLITE_AFF_TEXT;
+ return !unaryMinus && aff==SQLITE_AFF_TEXT;
}
case TK_BLOB: {
- return 1;
+ return !unaryMinus;
}
case TK_COLUMN: {
assert( p->iTable>=0 ); /* p cannot be part of a CHECK constraint */
- return p->iColumn<0
- && (aff==SQLITE_AFF_INTEGER || aff==SQLITE_AFF_NUMERIC);
+ return aff>=SQLITE_AFF_NUMERIC && p->iColumn<0;
}
default: {
return 0;
@@ -98103,10 +99920,11 @@ static int sqlite3InRhsIsConstant(Expr *pIn){
#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3FindInIndex(
Parse *pParse, /* Parsing context */
- Expr *pX, /* The right-hand side (RHS) of the IN operator */
+ Expr *pX, /* The IN expression */
u32 inFlags, /* IN_INDEX_LOOP, _MEMBERSHIP, and/or _NOOP_OK */
int *prRhsHasNull, /* Register holding NULL status. See notes */
- int *aiMap /* Mapping from Index fields to RHS fields */
+ int *aiMap, /* Mapping from Index fields to RHS fields */
+ int *piTab /* OUT: index to use */
){
Select *p; /* SELECT to the right of IN operator */
int eType = 0; /* Type of RHS table. IN_INDEX_* */
@@ -98201,6 +100019,7 @@ SQLITE_PRIVATE int sqlite3FindInIndex(
Bitmask colUsed; /* Columns of the index used */
Bitmask mCol; /* Mask for the current column */
if( pIdx->nColumnpPartIdxWhere!=0 ) continue;
/* Maximum nColumn is BMS-2, not BMS-1, so that we can compute
** BITMASK(nExpr) without overflowing */
testcase( pIdx->nColumn==BMS-2 );
@@ -98291,16 +100110,15 @@ SQLITE_PRIVATE int sqlite3FindInIndex(
eType = IN_INDEX_EPH;
if( inFlags & IN_INDEX_LOOP ){
pParse->nQueryLoop = 0;
- if( pX->pLeft->iColumn<0 && !ExprHasProperty(pX, EP_xIsSelect) ){
- eType = IN_INDEX_ROWID;
- }
}else if( prRhsHasNull ){
*prRhsHasNull = rMayHaveNull = ++pParse->nMem;
}
- sqlite3CodeSubselect(pParse, pX, rMayHaveNull, eType==IN_INDEX_ROWID);
+ assert( pX->op==TK_IN );
+ sqlite3CodeRhsOfIN(pParse, pX, iTab);
+ if( rMayHaveNull ){
+ sqlite3SetHasNullFlag(v, iTab, rMayHaveNull);
+ }
pParse->nQueryLoop = savedNQueryLoop;
- }else{
- pX->iTable = iTab;
}
if( aiMap && eType!=IN_INDEX_INDEX_ASC && eType!=IN_INDEX_INDEX_DESC ){
@@ -98308,6 +100126,7 @@ SQLITE_PRIVATE int sqlite3FindInIndex(
n = sqlite3ExprVectorSize(pX->pLeft);
for(i=0; iiTable,
+** however the cursor number returned might not be the same, as it might
+** have been duplicated using OP_OpenDup.
**
-** If parameter isRowid is non-zero, then expression pExpr is guaranteed
-** to be of the form " IN (?, ?, ?)", where is a reference
-** to some integer key column of a table B-Tree. In this case, use an
-** intkey B-Tree to store the set of IN(...) values instead of the usual
-** (slower) variable length keys B-Tree.
+** If the LHS expression ("x" in the examples) is a column value, or
+** the SELECT statement returns a column value, then the affinity of that
+** column is used to build the index keys. If both 'x' and the
+** SELECT... statement are columns, then numeric affinity is used
+** if either column has NUMERIC or INTEGER affinity. If neither
+** 'x' nor the SELECT... statement are columns, then numeric affinity
+** is used.
+*/
+SQLITE_PRIVATE void sqlite3CodeRhsOfIN(
+ Parse *pParse, /* Parsing context */
+ Expr *pExpr, /* The IN operator */
+ int iTab /* Use this cursor number */
+){
+ int addrOnce = 0; /* Address of the OP_Once instruction at top */
+ int addr; /* Address of OP_OpenEphemeral instruction */
+ Expr *pLeft; /* the LHS of the IN operator */
+ KeyInfo *pKeyInfo = 0; /* Key information */
+ int nVal; /* Size of vector pLeft */
+ Vdbe *v; /* The prepared statement under construction */
+
+ v = pParse->pVdbe;
+ assert( v!=0 );
+
+ /* The evaluation of the IN must be repeated every time it
+ ** is encountered if any of the following is true:
+ **
+ ** * The right-hand side is a correlated subquery
+ ** * The right-hand side is an expression list containing variables
+ ** * We are inside a trigger
+ **
+ ** If all of the above are false, then we can compute the RHS just once
+ ** and reuse it many names.
+ */
+ if( !ExprHasProperty(pExpr, EP_VarSelect) && pParse->iSelfTab==0 ){
+ /* Reuse of the RHS is allowed */
+ /* If this routine has already been coded, but the previous code
+ ** might not have been invoked yet, so invoke it now as a subroutine.
+ */
+ if( ExprHasProperty(pExpr, EP_Subrtn) ){
+ addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
+ if( ExprHasProperty(pExpr, EP_xIsSelect) ){
+ ExplainQueryPlan((pParse, 0, "REUSE LIST SUBQUERY %d",
+ pExpr->x.pSelect->selId));
+ }
+ sqlite3VdbeAddOp2(v, OP_Gosub, pExpr->y.sub.regReturn,
+ pExpr->y.sub.iAddr);
+ sqlite3VdbeAddOp2(v, OP_OpenDup, iTab, pExpr->iTable);
+ sqlite3VdbeJumpHere(v, addrOnce);
+ return;
+ }
+
+ /* Begin coding the subroutine */
+ ExprSetProperty(pExpr, EP_Subrtn);
+ pExpr->y.sub.regReturn = ++pParse->nMem;
+ pExpr->y.sub.iAddr =
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1;
+ VdbeComment((v, "return address"));
+
+ addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
+ }
+
+ /* Check to see if this is a vector IN operator */
+ pLeft = pExpr->pLeft;
+ nVal = sqlite3ExprVectorSize(pLeft);
+
+ /* Construct the ephemeral table that will contain the content of
+ ** RHS of the IN operator.
+ */
+ pExpr->iTable = iTab;
+ addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pExpr->iTable, nVal);
+#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
+ if( ExprHasProperty(pExpr, EP_xIsSelect) ){
+ VdbeComment((v, "Result of SELECT %u", pExpr->x.pSelect->selId));
+ }else{
+ VdbeComment((v, "RHS of IN operator"));
+ }
+#endif
+ pKeyInfo = sqlite3KeyInfoAlloc(pParse->db, nVal, 1);
+
+ if( ExprHasProperty(pExpr, EP_xIsSelect) ){
+ /* Case 1: expr IN (SELECT ...)
+ **
+ ** Generate code to write the results of the select into the temporary
+ ** table allocated and opened above.
+ */
+ Select *pSelect = pExpr->x.pSelect;
+ ExprList *pEList = pSelect->pEList;
+
+ ExplainQueryPlan((pParse, 1, "%sLIST SUBQUERY %d",
+ addrOnce?"":"CORRELATED ", pSelect->selId
+ ));
+ /* If the LHS and RHS of the IN operator do not match, that
+ ** error will have been caught long before we reach this point. */
+ if( ALWAYS(pEList->nExpr==nVal) ){
+ SelectDest dest;
+ int i;
+ sqlite3SelectDestInit(&dest, SRT_Set, iTab);
+ dest.zAffSdst = exprINAffinity(pParse, pExpr);
+ pSelect->iLimit = 0;
+ testcase( pSelect->selFlags & SF_Distinct );
+ testcase( pKeyInfo==0 ); /* Caused by OOM in sqlite3KeyInfoAlloc() */
+ if( sqlite3Select(pParse, pSelect, &dest) ){
+ sqlite3DbFree(pParse->db, dest.zAffSdst);
+ sqlite3KeyInfoUnref(pKeyInfo);
+ return;
+ }
+ sqlite3DbFree(pParse->db, dest.zAffSdst);
+ assert( pKeyInfo!=0 ); /* OOM will cause exit after sqlite3Select() */
+ assert( pEList!=0 );
+ assert( pEList->nExpr>0 );
+ assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );
+ for(i=0; iaColl[i] = sqlite3BinaryCompareCollSeq(
+ pParse, p, pEList->a[i].pExpr
+ );
+ }
+ }
+ }else if( ALWAYS(pExpr->x.pList!=0) ){
+ /* Case 2: expr IN (exprlist)
+ **
+ ** For each expression, build an index key from the evaluation and
+ ** store it in the temporary table. If is a column, then use
+ ** that columns affinity when building index keys. If is not
+ ** a column, use numeric affinity.
+ */
+ char affinity; /* Affinity of the LHS of the IN */
+ int i;
+ ExprList *pList = pExpr->x.pList;
+ struct ExprList_item *pItem;
+ int r1, r2;
+ affinity = sqlite3ExprAffinity(pLeft);
+ if( affinity<=SQLITE_AFF_NONE ){
+ affinity = SQLITE_AFF_BLOB;
+ }
+ if( pKeyInfo ){
+ assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );
+ pKeyInfo->aColl[0] = sqlite3ExprCollSeq(pParse, pExpr->pLeft);
+ }
+
+ /* Loop through each expression in . */
+ r1 = sqlite3GetTempReg(pParse);
+ r2 = sqlite3GetTempReg(pParse);
+ for(i=pList->nExpr, pItem=pList->a; i>0; i--, pItem++){
+ Expr *pE2 = pItem->pExpr;
+
+ /* If the expression is not constant then we will need to
+ ** disable the test that was generated above that makes sure
+ ** this code only executes once. Because for a non-constant
+ ** expression we need to rerun this code each time.
+ */
+ if( addrOnce && !sqlite3ExprIsConstant(pE2) ){
+ sqlite3VdbeChangeToNoop(v, addrOnce);
+ ExprClearProperty(pExpr, EP_Subrtn);
+ addrOnce = 0;
+ }
+
+ /* Evaluate the expression and insert it into the temp table */
+ sqlite3ExprCode(pParse, pE2, r1);
+ sqlite3VdbeAddOp4(v, OP_MakeRecord, r1, 1, r2, &affinity, 1);
+ sqlite3VdbeAddOp4Int(v, OP_IdxInsert, iTab, r2, r1, 1);
+ }
+ sqlite3ReleaseTempReg(pParse, r1);
+ sqlite3ReleaseTempReg(pParse, r2);
+ }
+ if( pKeyInfo ){
+ sqlite3VdbeChangeP4(v, addr, (void *)pKeyInfo, P4_KEYINFO);
+ }
+ if( addrOnce ){
+ sqlite3VdbeJumpHere(v, addrOnce);
+ /* Subroutine return */
+ sqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn);
+ sqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, sqlite3VdbeCurrentAddr(v)-1);
+ sqlite3ClearTempRegCache(pParse);
+ }
+}
+#endif /* SQLITE_OMIT_SUBQUERY */
+
+/*
+** Generate code for scalar subqueries used as a subquery expression
+** or EXISTS operator:
**
-** If rMayHaveNull is non-zero, that means that the operation is an IN
-** (not a SELECT or EXISTS) and that the RHS might contains NULLs.
-** All this routine does is initialize the register given by rMayHaveNull
-** to NULL. Calling routines will take care of changing this register
-** value to non-NULL if the RHS is NULL-free.
+** (SELECT a FROM b) -- subquery
+** EXISTS (SELECT a FROM b) -- EXISTS subquery
**
-** For a SELECT or EXISTS operator, return the register that holds the
-** result. For a multi-column SELECT, the result is stored in a contiguous
-** array of registers and the return value is the register of the left-most
-** result column. Return 0 for IN operators or if an error occurs.
+** The pExpr parameter is the SELECT or EXISTS operator to be coded.
+**
+** Return the register that holds the result. For a multi-column SELECT,
+** the result is stored in a contiguous array of registers and the
+** return value is the register of the left-most result column.
+** Return 0 if an error occurs.
*/
#ifndef SQLITE_OMIT_SUBQUERY
-SQLITE_PRIVATE int sqlite3CodeSubselect(
- Parse *pParse, /* Parsing context */
- Expr *pExpr, /* The IN, SELECT, or EXISTS operator */
- int rHasNullFlag, /* Register that records whether NULLs exist in RHS */
- int isRowid /* If true, LHS of IN operator is a rowid */
-){
- int jmpIfDynamic = -1; /* One-time test address */
- int rReg = 0; /* Register storing resulting */
- Vdbe *v = sqlite3GetVdbe(pParse);
- if( NEVER(v==0) ) return 0;
+SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){
+ int addrOnce = 0; /* Address of OP_Once at top of subroutine */
+ int rReg = 0; /* Register storing resulting */
+ Select *pSel; /* SELECT statement to encode */
+ SelectDest dest; /* How to deal with SELECT result */
+ int nReg; /* Registers to allocate */
+ Expr *pLimit; /* New limit expression */
- /* The evaluation of the IN/EXISTS/SELECT must be repeated every time it
+ Vdbe *v = pParse->pVdbe;
+ assert( v!=0 );
+ testcase( pExpr->op==TK_EXISTS );
+ testcase( pExpr->op==TK_SELECT );
+ assert( pExpr->op==TK_EXISTS || pExpr->op==TK_SELECT );
+ assert( ExprHasProperty(pExpr, EP_xIsSelect) );
+ pSel = pExpr->x.pSelect;
+
+ /* The evaluation of the EXISTS/SELECT must be repeated every time it
** is encountered if any of the following is true:
**
** * The right-hand side is a correlated subquery
@@ -98433,208 +100435,81 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(
** save the results, and reuse the same result on subsequent invocations.
*/
if( !ExprHasProperty(pExpr, EP_VarSelect) ){
- jmpIfDynamic = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
- }
-
- switch( pExpr->op ){
- case TK_IN: {
- int addr; /* Address of OP_OpenEphemeral instruction */
- Expr *pLeft = pExpr->pLeft; /* the LHS of the IN operator */
- KeyInfo *pKeyInfo = 0; /* Key information */
- int nVal; /* Size of vector pLeft */
-
- nVal = sqlite3ExprVectorSize(pLeft);
- assert( !isRowid || nVal==1 );
-
- /* Whether this is an 'x IN(SELECT...)' or an 'x IN()'
- ** expression it is handled the same way. An ephemeral table is
- ** filled with index keys representing the results from the
- ** SELECT or the .
- **
- ** If the 'x' expression is a column value, or the SELECT...
- ** statement returns a column value, then the affinity of that
- ** column is used to build the index keys. If both 'x' and the
- ** SELECT... statement are columns, then numeric affinity is used
- ** if either column has NUMERIC or INTEGER affinity. If neither
- ** 'x' nor the SELECT... statement are columns, then numeric affinity
- ** is used.
- */
- pExpr->iTable = pParse->nTab++;
- addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral,
- pExpr->iTable, (isRowid?0:nVal));
- pKeyInfo = isRowid ? 0 : sqlite3KeyInfoAlloc(pParse->db, nVal, 1);
-
- if( ExprHasProperty(pExpr, EP_xIsSelect) ){
- /* Case 1: expr IN (SELECT ...)
- **
- ** Generate code to write the results of the select into the temporary
- ** table allocated and opened above.
- */
- Select *pSelect = pExpr->x.pSelect;
- ExprList *pEList = pSelect->pEList;
-
- ExplainQueryPlan((pParse, 1, "%sLIST SUBQUERY",
- jmpIfDynamic>=0?"":"CORRELATED "
- ));
- assert( !isRowid );
- /* If the LHS and RHS of the IN operator do not match, that
- ** error will have been caught long before we reach this point. */
- if( ALWAYS(pEList->nExpr==nVal) ){
- SelectDest dest;
- int i;
- sqlite3SelectDestInit(&dest, SRT_Set, pExpr->iTable);
- dest.zAffSdst = exprINAffinity(pParse, pExpr);
- pSelect->iLimit = 0;
- testcase( pSelect->selFlags & SF_Distinct );
- testcase( pKeyInfo==0 ); /* Caused by OOM in sqlite3KeyInfoAlloc() */
- if( sqlite3Select(pParse, pSelect, &dest) ){
- sqlite3DbFree(pParse->db, dest.zAffSdst);
- sqlite3KeyInfoUnref(pKeyInfo);
- return 0;
- }
- sqlite3DbFree(pParse->db, dest.zAffSdst);
- assert( pKeyInfo!=0 ); /* OOM will cause exit after sqlite3Select() */
- assert( pEList!=0 );
- assert( pEList->nExpr>0 );
- assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );
- for(i=0; iaColl[i] = sqlite3BinaryCompareCollSeq(
- pParse, p, pEList->a[i].pExpr
- );
- }
- }
- }else if( ALWAYS(pExpr->x.pList!=0) ){
- /* Case 2: expr IN (exprlist)
- **
- ** For each expression, build an index key from the evaluation and
- ** store it in the temporary table. If is a column, then use
- ** that columns affinity when building index keys. If is not
- ** a column, use numeric affinity.
- */
- char affinity; /* Affinity of the LHS of the IN */
- int i;
- ExprList *pList = pExpr->x.pList;
- struct ExprList_item *pItem;
- int r1, r2, r3;
- affinity = sqlite3ExprAffinity(pLeft);
- if( !affinity ){
- affinity = SQLITE_AFF_BLOB;
- }
- if( pKeyInfo ){
- assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );
- pKeyInfo->aColl[0] = sqlite3ExprCollSeq(pParse, pExpr->pLeft);
- }
-
- /* Loop through each expression in . */
- r1 = sqlite3GetTempReg(pParse);
- r2 = sqlite3GetTempReg(pParse);
- if( isRowid ) sqlite3VdbeAddOp4(v, OP_Blob, 0, r2, 0, "", P4_STATIC);
- for(i=pList->nExpr, pItem=pList->a; i>0; i--, pItem++){
- Expr *pE2 = pItem->pExpr;
- int iValToIns;
-
- /* If the expression is not constant then we will need to
- ** disable the test that was generated above that makes sure
- ** this code only executes once. Because for a non-constant
- ** expression we need to rerun this code each time.
- */
- if( jmpIfDynamic>=0 && !sqlite3ExprIsConstant(pE2) ){
- sqlite3VdbeChangeToNoop(v, jmpIfDynamic);
- jmpIfDynamic = -1;
- }
-
- /* Evaluate the expression and insert it into the temp table */
- if( isRowid && sqlite3ExprIsInteger(pE2, &iValToIns) ){
- sqlite3VdbeAddOp3(v, OP_InsertInt, pExpr->iTable, r2, iValToIns);
- }else{
- r3 = sqlite3ExprCodeTarget(pParse, pE2, r1);
- if( isRowid ){
- sqlite3VdbeAddOp2(v, OP_MustBeInt, r3,
- sqlite3VdbeCurrentAddr(v)+2);
- VdbeCoverage(v);
- sqlite3VdbeAddOp3(v, OP_Insert, pExpr->iTable, r2, r3);
- }else{
- sqlite3VdbeAddOp4(v, OP_MakeRecord, r3, 1, r2, &affinity, 1);
- sqlite3VdbeAddOp4Int(v, OP_IdxInsert, pExpr->iTable, r2, r3, 1);
- }
- }
- }
- sqlite3ReleaseTempReg(pParse, r1);
- sqlite3ReleaseTempReg(pParse, r2);
- }
- if( pKeyInfo ){
- sqlite3VdbeChangeP4(v, addr, (void *)pKeyInfo, P4_KEYINFO);
- }
- break;
+ /* If this routine has already been coded, then invoke it as a
+ ** subroutine. */
+ if( ExprHasProperty(pExpr, EP_Subrtn) ){
+ ExplainQueryPlan((pParse, 0, "REUSE SUBQUERY %d", pSel->selId));
+ sqlite3VdbeAddOp2(v, OP_Gosub, pExpr->y.sub.regReturn,
+ pExpr->y.sub.iAddr);
+ return pExpr->iTable;
}
- case TK_EXISTS:
- case TK_SELECT:
- default: {
- /* Case 3: (SELECT ... FROM ...)
- ** or: EXISTS(SELECT ... FROM ...)
- **
- ** For a SELECT, generate code to put the values for all columns of
- ** the first row into an array of registers and return the index of
- ** the first register.
- **
- ** If this is an EXISTS, write an integer 0 (not exists) or 1 (exists)
- ** into a register and return that register number.
- **
- ** In both cases, the query is augmented with "LIMIT 1". Any
- ** preexisting limit is discarded in place of the new LIMIT 1.
- */
- Select *pSel; /* SELECT statement to encode */
- SelectDest dest; /* How to deal with SELECT result */
- int nReg; /* Registers to allocate */
- Expr *pLimit; /* New limit expression */
+ /* Begin coding the subroutine */
+ ExprSetProperty(pExpr, EP_Subrtn);
+ pExpr->y.sub.regReturn = ++pParse->nMem;
+ pExpr->y.sub.iAddr =
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1;
+ VdbeComment((v, "return address"));
- testcase( pExpr->op==TK_EXISTS );
- testcase( pExpr->op==TK_SELECT );
- assert( pExpr->op==TK_EXISTS || pExpr->op==TK_SELECT );
- assert( ExprHasProperty(pExpr, EP_xIsSelect) );
-
- pSel = pExpr->x.pSelect;
- ExplainQueryPlan((pParse, 1, "%sSCALAR SUBQUERY",
- jmpIfDynamic>=0?"":"CORRELATED "));
- nReg = pExpr->op==TK_SELECT ? pSel->pEList->nExpr : 1;
- sqlite3SelectDestInit(&dest, 0, pParse->nMem+1);
- pParse->nMem += nReg;
- if( pExpr->op==TK_SELECT ){
- dest.eDest = SRT_Mem;
- dest.iSdst = dest.iSDParm;
- dest.nSdst = nReg;
- sqlite3VdbeAddOp3(v, OP_Null, 0, dest.iSDParm, dest.iSDParm+nReg-1);
- VdbeComment((v, "Init subquery result"));
- }else{
- dest.eDest = SRT_Exists;
- sqlite3VdbeAddOp2(v, OP_Integer, 0, dest.iSDParm);
- VdbeComment((v, "Init EXISTS result"));
- }
- pLimit = sqlite3ExprAlloc(pParse->db, TK_INTEGER,&sqlite3IntTokens[1], 0);
- if( pSel->pLimit ){
- sqlite3ExprDelete(pParse->db, pSel->pLimit->pLeft);
- pSel->pLimit->pLeft = pLimit;
- }else{
- pSel->pLimit = sqlite3PExpr(pParse, TK_LIMIT, pLimit, 0);
- }
- pSel->iLimit = 0;
- if( sqlite3Select(pParse, pSel, &dest) ){
- return 0;
- }
- rReg = dest.iSDParm;
- ExprSetVVAProperty(pExpr, EP_NoReduce);
- break;
+ addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
+ }
+
+ /* For a SELECT, generate code to put the values for all columns of
+ ** the first row into an array of registers and return the index of
+ ** the first register.
+ **
+ ** If this is an EXISTS, write an integer 0 (not exists) or 1 (exists)
+ ** into a register and return that register number.
+ **
+ ** In both cases, the query is augmented with "LIMIT 1". Any
+ ** preexisting limit is discarded in place of the new LIMIT 1.
+ */
+ ExplainQueryPlan((pParse, 1, "%sSCALAR SUBQUERY %d",
+ addrOnce?"":"CORRELATED ", pSel->selId));
+ nReg = pExpr->op==TK_SELECT ? pSel->pEList->nExpr : 1;
+ sqlite3SelectDestInit(&dest, 0, pParse->nMem+1);
+ pParse->nMem += nReg;
+ if( pExpr->op==TK_SELECT ){
+ dest.eDest = SRT_Mem;
+ dest.iSdst = dest.iSDParm;
+ dest.nSdst = nReg;
+ sqlite3VdbeAddOp3(v, OP_Null, 0, dest.iSDParm, dest.iSDParm+nReg-1);
+ VdbeComment((v, "Init subquery result"));
+ }else{
+ dest.eDest = SRT_Exists;
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, dest.iSDParm);
+ VdbeComment((v, "Init EXISTS result"));
+ }
+ if( pSel->pLimit ){
+ /* The subquery already has a limit. If the pre-existing limit is X
+ ** then make the new limit X<>0 so that the new limit is either 1 or 0 */
+ sqlite3 *db = pParse->db;
+ pLimit = sqlite3Expr(db, TK_INTEGER, "0");
+ if( pLimit ){
+ pLimit->affExpr = SQLITE_AFF_NUMERIC;
+ pLimit = sqlite3PExpr(pParse, TK_NE,
+ sqlite3ExprDup(db, pSel->pLimit->pLeft, 0), pLimit);
}
+ sqlite3ExprDelete(db, pSel->pLimit->pLeft);
+ pSel->pLimit->pLeft = pLimit;
+ }else{
+ /* If there is no pre-existing limit add a limit of 1 */
+ pLimit = sqlite3Expr(pParse->db, TK_INTEGER, "1");
+ pSel->pLimit = sqlite3PExpr(pParse, TK_LIMIT, pLimit, 0);
}
-
- if( rHasNullFlag ){
- sqlite3SetHasNullFlag(v, pExpr->iTable, rHasNullFlag);
+ pSel->iLimit = 0;
+ if( sqlite3Select(pParse, pSel, &dest) ){
+ return 0;
}
+ pExpr->iTable = rReg = dest.iSDParm;
+ ExprSetVVAProperty(pExpr, EP_NoReduce);
+ if( addrOnce ){
+ sqlite3VdbeJumpHere(v, addrOnce);
- if( jmpIfDynamic>=0 ){
- sqlite3VdbeJumpHere(v, jmpIfDynamic);
+ /* Subroutine return */
+ sqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn);
+ sqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, sqlite3VdbeCurrentAddr(v)-1);
+ sqlite3ClearTempRegCache(pParse);
}
return rReg;
@@ -98711,6 +100586,7 @@ static void sqlite3ExprCodeIN(
int addrTruthOp; /* Address of opcode that determines the IN is true */
int destNotNull; /* Jump here if a comparison is not true in step 6 */
int addrTop; /* Top of the step-6 loop */
+ int iTab = 0; /* Index to use */
pLeft = pExpr->pLeft;
if( sqlite3ExprCheckIN(pParse, pExpr) ) return;
@@ -98722,7 +100598,7 @@ static void sqlite3ExprCodeIN(
if( pParse->db->mallocFailed ) goto sqlite3ExprCodeIN_oom_error;
/* Attempt to compute the RHS. After this step, if anything other than
- ** IN_INDEX_NOOP is returned, the table opened ith cursor pExpr->iTable
+ ** IN_INDEX_NOOP is returned, the table opened with cursor iTab
** contains the values that make up the RHS. If IN_INDEX_NOOP is returned,
** the RHS has not yet been coded. */
v = pParse->pVdbe;
@@ -98730,7 +100606,8 @@ static void sqlite3ExprCodeIN(
VdbeNoopComment((v, "begin IN expr"));
eType = sqlite3FindInIndex(pParse, pExpr,
IN_INDEX_MEMBERSHIP | IN_INDEX_NOOP_OK,
- destIfFalse==destIfNull ? 0 : &rRhsHasNull, aiMap);
+ destIfFalse==destIfNull ? 0 : &rRhsHasNull,
+ aiMap, &iTab);
assert( pParse->nErr || nVector==1 || eType==IN_INDEX_EPH
|| eType==IN_INDEX_INDEX_ASC || eType==IN_INDEX_INDEX_DESC
@@ -98776,17 +100653,25 @@ static void sqlite3ExprCodeIN(
if( eType==IN_INDEX_NOOP ){
ExprList *pList = pExpr->x.pList;
CollSeq *pColl = sqlite3ExprCollSeq(pParse, pExpr->pLeft);
- int labelOk = sqlite3VdbeMakeLabel(v);
+ int labelOk = sqlite3VdbeMakeLabel(pParse);
int r2, regToFree;
int regCkNull = 0;
int ii;
+ int bLhsReal; /* True if the LHS of the IN has REAL affinity */
assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
if( destIfNull!=destIfFalse ){
regCkNull = sqlite3GetTempReg(pParse);
sqlite3VdbeAddOp3(v, OP_BitAnd, rLhs, rLhs, regCkNull);
}
+ bLhsReal = sqlite3ExprAffinity(pExpr->pLeft)==SQLITE_AFF_REAL;
for(ii=0; iinExpr; ii++){
- r2 = sqlite3ExprCodeTemp(pParse, pList->a[ii].pExpr, ®ToFree);
+ if( bLhsReal ){
+ r2 = regToFree = sqlite3GetTempReg(pParse);
+ sqlite3ExprCode(pParse, pList->a[ii].pExpr, r2);
+ sqlite3VdbeAddOp4(v, OP_Affinity, r2, 1, 0, "E", P4_STATIC);
+ }else{
+ r2 = sqlite3ExprCodeTemp(pParse, pList->a[ii].pExpr, ®ToFree);
+ }
if( regCkNull && sqlite3ExprCanBeNull(pList->a[ii].pExpr) ){
sqlite3VdbeAddOp3(v, OP_BitAnd, regCkNull, r2, regCkNull);
}
@@ -98820,7 +100705,7 @@ static void sqlite3ExprCodeIN(
if( destIfNull==destIfFalse ){
destStep2 = destIfFalse;
}else{
- destStep2 = destStep6 = sqlite3VdbeMakeLabel(v);
+ destStep2 = destStep6 = sqlite3VdbeMakeLabel(pParse);
}
for(i=0; ipLeft, i);
@@ -98838,19 +100723,19 @@ static void sqlite3ExprCodeIN(
/* In this case, the RHS is the ROWID of table b-tree and so we also
** know that the RHS is non-NULL. Hence, we combine steps 3 and 4
** into a single opcode. */
- sqlite3VdbeAddOp3(v, OP_SeekRowid, pExpr->iTable, destIfFalse, rLhs);
+ sqlite3VdbeAddOp3(v, OP_SeekRowid, iTab, destIfFalse, rLhs);
VdbeCoverage(v);
addrTruthOp = sqlite3VdbeAddOp0(v, OP_Goto); /* Return True */
}else{
sqlite3VdbeAddOp4(v, OP_Affinity, rLhs, nVector, 0, zAff, nVector);
if( destIfFalse==destIfNull ){
/* Combine Step 3 and Step 5 into a single opcode */
- sqlite3VdbeAddOp4Int(v, OP_NotFound, pExpr->iTable, destIfFalse,
+ sqlite3VdbeAddOp4Int(v, OP_NotFound, iTab, destIfFalse,
rLhs, nVector); VdbeCoverage(v);
goto sqlite3ExprCodeIN_finished;
}
/* Ordinary Step 3, for the case where FALSE and NULL are distinct */
- addrTruthOp = sqlite3VdbeAddOp4Int(v, OP_Found, pExpr->iTable, 0,
+ addrTruthOp = sqlite3VdbeAddOp4Int(v, OP_Found, iTab, 0,
rLhs, nVector); VdbeCoverage(v);
}
@@ -98875,10 +100760,10 @@ static void sqlite3ExprCodeIN(
** of the RHS.
*/
if( destStep6 ) sqlite3VdbeResolveLabel(v, destStep6);
- addrTop = sqlite3VdbeAddOp2(v, OP_Rewind, pExpr->iTable, destIfFalse);
+ addrTop = sqlite3VdbeAddOp2(v, OP_Rewind, iTab, destIfFalse);
VdbeCoverage(v);
if( nVector>1 ){
- destNotNull = sqlite3VdbeMakeLabel(v);
+ destNotNull = sqlite3VdbeMakeLabel(pParse);
}else{
/* For nVector==1, combine steps 6 and 7 by immediately returning
** FALSE if the first comparison is not NULL */
@@ -98890,7 +100775,7 @@ static void sqlite3ExprCodeIN(
int r3 = sqlite3GetTempReg(pParse);
p = sqlite3VectorFieldSubexpr(pLeft, i);
pColl = sqlite3ExprCollSeq(pParse, p);
- sqlite3VdbeAddOp3(v, OP_Column, pExpr->iTable, i, r3);
+ sqlite3VdbeAddOp3(v, OP_Column, iTab, i, r3);
sqlite3VdbeAddOp4(v, OP_Ne, rLhs+i, destNotNull, r3,
(void*)pColl, P4_COLLSEQ);
VdbeCoverage(v);
@@ -98899,7 +100784,7 @@ static void sqlite3ExprCodeIN(
sqlite3VdbeAddOp2(v, OP_Goto, 0, destIfNull);
if( nVector>1 ){
sqlite3VdbeResolveLabel(v, destNotNull);
- sqlite3VdbeAddOp2(v, OP_Next, pExpr->iTable, addrTop+1);
+ sqlite3VdbeAddOp2(v, OP_Next, iTab, addrTop+1);
VdbeCoverage(v);
/* Step 7: If we reach this point, we know that the result must
@@ -99070,7 +100955,8 @@ SQLITE_PRIVATE void sqlite3ExprCodeMove(Parse *pParse, int iFrom, int iTo, int n
** register iReg. The caller must ensure that iReg already contains
** the correct value for the expression.
*/
-static void exprToRegister(Expr *p, int iReg){
+static void exprToRegister(Expr *pExpr, int iReg){
+ Expr *p = sqlite3ExprSkipCollateAndLikely(pExpr);
p->op2 = p->op;
p->op = TK_REGISTER;
p->iTable = iReg;
@@ -99098,7 +100984,7 @@ static int exprCodeVector(Parse *pParse, Expr *p, int *piFreeable){
#if SQLITE_OMIT_SUBQUERY
iResult = 0;
#else
- iResult = sqlite3CodeSubselect(pParse, p, 0, 0);
+ iResult = sqlite3CodeSubselect(pParse, p);
#endif
}else{
int i;
@@ -99170,8 +101056,8 @@ expr_code_doover:
** constant.
*/
int iReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft,target);
- int aff = sqlite3TableColumnAffinity(pExpr->pTab, pExpr->iColumn);
- if( aff!=SQLITE_AFF_BLOB ){
+ int aff = sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
+ if( aff>SQLITE_AFF_BLOB ){
static const char zAff[] = "B\000C\000D\000E";
assert( SQLITE_AFF_BLOB=='A' );
assert( SQLITE_AFF_TEXT=='B' );
@@ -99187,14 +101073,26 @@ expr_code_doover:
if( iTab<0 ){
if( pParse->iSelfTab<0 ){
/* Generating CHECK constraints or inserting into partial index */
- return pExpr->iColumn - pParse->iSelfTab;
+ assert( pExpr->y.pTab!=0 );
+ assert( pExpr->iColumn>=XN_ROWID );
+ assert( pExpr->iColumny.pTab->nCol );
+ if( pExpr->iColumn>=0
+ && pExpr->y.pTab->aCol[pExpr->iColumn].affinity==SQLITE_AFF_REAL
+ ){
+ sqlite3VdbeAddOp2(v, OP_SCopy, pExpr->iColumn - pParse->iSelfTab,
+ target);
+ sqlite3VdbeAddOp1(v, OP_RealAffinity, target);
+ return target;
+ }else{
+ return pExpr->iColumn - pParse->iSelfTab;
+ }
}else{
/* Coding an expression that is part of an index where column names
** in the index refer to the table to which the index belongs */
iTab = pParse->iSelfTab - 1;
}
}
- return sqlite3ExprCodeGetColumn(pParse, pExpr->pTab,
+ return sqlite3ExprCodeGetColumn(pParse, pExpr->y.pTab,
pExpr->iColumn, iTab, target,
pExpr->op2);
}
@@ -99408,8 +101306,8 @@ expr_code_doover:
CollSeq *pColl = 0; /* A collating sequence */
#ifndef SQLITE_OMIT_WINDOWFUNC
- if( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) && pExpr->pWin ){
- return pExpr->pWin->regResult;
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ return pExpr->y.pWin->regResult;
}
#endif
@@ -99443,7 +101341,7 @@ expr_code_doover:
** arguments past the first non-NULL argument.
*/
if( pDef->funcFlags & SQLITE_FUNC_COALESCE ){
- int endCoalesce = sqlite3VdbeMakeLabel(v);
+ int endCoalesce = sqlite3VdbeMakeLabel(pParse);
assert( nFarg>=2 );
sqlite3ExprCode(pParse, pFarg->a[0].pExpr, target);
for(i=1; ia[0].pExpr);
sqlite3VdbeLoadString(v, target,
- aff ? azAff[aff-SQLITE_AFF_BLOB] : "none");
+ (aff<=SQLITE_AFF_NONE) ? "none" : azAff[aff-SQLITE_AFF_BLOB]);
return target;
}
#endif
@@ -99572,18 +101470,18 @@ expr_code_doover:
if( op==TK_SELECT && (nCol = pExpr->x.pSelect->pEList->nExpr)!=1 ){
sqlite3SubselectError(pParse, nCol, 1);
}else{
- return sqlite3CodeSubselect(pParse, pExpr, 0, 0);
+ return sqlite3CodeSubselect(pParse, pExpr);
}
break;
}
case TK_SELECT_COLUMN: {
int n;
if( pExpr->pLeft->iTable==0 ){
- pExpr->pLeft->iTable = sqlite3CodeSubselect(pParse, pExpr->pLeft, 0, 0);
+ pExpr->pLeft->iTable = sqlite3CodeSubselect(pParse, pExpr->pLeft);
}
assert( pExpr->iTable==0 || pExpr->pLeft->op==TK_SELECT );
- if( pExpr->iTable
- && pExpr->iTable!=(n = sqlite3ExprVectorSize(pExpr->pLeft))
+ if( pExpr->iTable!=0
+ && pExpr->iTable!=(n = sqlite3ExprVectorSize(pExpr->pLeft))
){
sqlite3ErrorMsg(pParse, "%d columns assigned %d values",
pExpr->iTable, n);
@@ -99591,8 +101489,8 @@ expr_code_doover:
return pExpr->pLeft->iTable + pExpr->iColumn;
}
case TK_IN: {
- int destIfFalse = sqlite3VdbeMakeLabel(v);
- int destIfNull = sqlite3VdbeMakeLabel(v);
+ int destIfFalse = sqlite3VdbeMakeLabel(pParse);
+ int destIfNull = sqlite3VdbeMakeLabel(pParse);
sqlite3VdbeAddOp2(v, OP_Null, 0, target);
sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
sqlite3VdbeAddOp2(v, OP_Integer, 1, target);
@@ -99652,7 +101550,7 @@ expr_code_doover:
** p1==1 -> old.a p1==4 -> new.a
** p1==2 -> old.b p1==5 -> new.b
*/
- Table *pTab = pExpr->pTab;
+ Table *pTab = pExpr->y.pTab;
int p1 = pExpr->iTable * (pTab->nCol+1) + 1 + pExpr->iColumn;
assert( pExpr->iTable==0 || pExpr->iTable==1 );
@@ -99663,7 +101561,7 @@ expr_code_doover:
sqlite3VdbeAddOp2(v, OP_Param, p1, target);
VdbeComment((v, "r[%d]=%s.%s", target,
(pExpr->iTable ? "new" : "old"),
- (pExpr->iColumn<0 ? "rowid" : pExpr->pTab->aCol[pExpr->iColumn].zName)
+ (pExpr->iColumn<0 ? "rowid" : pExpr->y.pTab->aCol[pExpr->iColumn].zName)
));
#ifndef SQLITE_OMIT_FLOATING_POINT
@@ -99686,10 +101584,23 @@ expr_code_doover:
break;
}
+ /* TK_IF_NULL_ROW Expr nodes are inserted ahead of expressions
+ ** that derive from the right-hand table of a LEFT JOIN. The
+ ** Expr.iTable value is the table number for the right-hand table.
+ ** The expression is only evaluated if that table is not currently
+ ** on a LEFT JOIN NULL row.
+ */
case TK_IF_NULL_ROW: {
int addrINR;
+ u8 okConstFactor = pParse->okConstFactor;
addrINR = sqlite3VdbeAddOp1(v, OP_IfNullRow, pExpr->iTable);
+ /* Temporarily disable factoring of constant expressions, since
+ ** even though expressions may appear to be constant, they are not
+ ** really constant because they originate from the right-hand side
+ ** of a LEFT JOIN. */
+ pParse->okConstFactor = 0;
inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
+ pParse->okConstFactor = okConstFactor;
sqlite3VdbeJumpHere(v, addrINR);
sqlite3VdbeChangeP3(v, addrINR, inReg);
break;
@@ -99726,21 +101637,27 @@ expr_code_doover:
Expr opCompare; /* The X==Ei expression */
Expr *pX; /* The X expression */
Expr *pTest = 0; /* X==Ei (form A) or just Ei (form B) */
+ Expr *pDel = 0;
+ sqlite3 *db = pParse->db;
assert( !ExprHasProperty(pExpr, EP_xIsSelect) && pExpr->x.pList );
assert(pExpr->x.pList->nExpr > 0);
pEList = pExpr->x.pList;
aListelem = pEList->a;
nExpr = pEList->nExpr;
- endLabel = sqlite3VdbeMakeLabel(v);
+ endLabel = sqlite3VdbeMakeLabel(pParse);
if( (pX = pExpr->pLeft)!=0 ){
- tempX = *pX;
+ pDel = sqlite3ExprDup(db, pX, 0);
+ if( db->mallocFailed ){
+ sqlite3ExprDelete(db, pDel);
+ break;
+ }
testcase( pX->op==TK_COLUMN );
- exprToRegister(&tempX, exprCodeVector(pParse, &tempX, ®Free1));
+ exprToRegister(pDel, exprCodeVector(pParse, pDel, ®Free1));
testcase( regFree1==0 );
memset(&opCompare, 0, sizeof(opCompare));
opCompare.op = TK_EQ;
- opCompare.pLeft = &tempX;
+ opCompare.pLeft = pDel;
pTest = &opCompare;
/* Ticket b351d95f9cd5ef17e9d9dbae18f5ca8611190001:
** The value in regFree1 might get SCopy-ed into the file result.
@@ -99755,7 +101672,7 @@ expr_code_doover:
}else{
pTest = aListelem[i].pExpr;
}
- nextCase = sqlite3VdbeMakeLabel(v);
+ nextCase = sqlite3VdbeMakeLabel(pParse);
testcase( pTest->op==TK_COLUMN );
sqlite3ExprIfFalse(pParse, pTest, nextCase, SQLITE_JUMPIFNULL);
testcase( aListelem[i+1].pExpr->op==TK_COLUMN );
@@ -99768,32 +101685,33 @@ expr_code_doover:
}else{
sqlite3VdbeAddOp2(v, OP_Null, 0, target);
}
+ sqlite3ExprDelete(db, pDel);
sqlite3VdbeResolveLabel(v, endLabel);
break;
}
#ifndef SQLITE_OMIT_TRIGGER
case TK_RAISE: {
- assert( pExpr->affinity==OE_Rollback
- || pExpr->affinity==OE_Abort
- || pExpr->affinity==OE_Fail
- || pExpr->affinity==OE_Ignore
+ assert( pExpr->affExpr==OE_Rollback
+ || pExpr->affExpr==OE_Abort
+ || pExpr->affExpr==OE_Fail
+ || pExpr->affExpr==OE_Ignore
);
if( !pParse->pTriggerTab ){
sqlite3ErrorMsg(pParse,
"RAISE() may only be used within a trigger-program");
return 0;
}
- if( pExpr->affinity==OE_Abort ){
+ if( pExpr->affExpr==OE_Abort ){
sqlite3MayAbort(pParse);
}
assert( !ExprHasProperty(pExpr, EP_IntValue) );
- if( pExpr->affinity==OE_Ignore ){
+ if( pExpr->affExpr==OE_Ignore ){
sqlite3VdbeAddOp4(
v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0);
VdbeCoverage(v);
}else{
sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_TRIGGER,
- pExpr->affinity, pExpr->u.zToken, 0, 0);
+ pExpr->affExpr, pExpr->u.zToken, 0, 0);
}
break;
@@ -99858,7 +101776,7 @@ SQLITE_PRIVATE int sqlite3ExprCodeAtInit(
*/
SQLITE_PRIVATE int sqlite3ExprCodeTemp(Parse *pParse, Expr *pExpr, int *pReg){
int r2;
- pExpr = sqlite3ExprSkipCollate(pExpr);
+ pExpr = sqlite3ExprSkipCollateAndLikely(pExpr);
if( ConstFactorOk(pParse)
&& pExpr->op!=TK_REGISTER
&& sqlite3ExprIsConstantNotJoin(pExpr)
@@ -100049,41 +101967,44 @@ static void exprCodeBetween(
void (*xJump)(Parse*,Expr*,int,int), /* Action to take */
int jumpIfNull /* Take the jump if the BETWEEN is NULL */
){
- Expr exprAnd; /* The AND operator in x>=y AND x<=z */
+ Expr exprAnd; /* The AND operator in x>=y AND x<=z */
Expr compLeft; /* The x>=y term */
Expr compRight; /* The x<=z term */
- Expr exprX; /* The x subexpression */
int regFree1 = 0; /* Temporary use register */
-
+ Expr *pDel = 0;
+ sqlite3 *db = pParse->db;
memset(&compLeft, 0, sizeof(Expr));
memset(&compRight, 0, sizeof(Expr));
memset(&exprAnd, 0, sizeof(Expr));
assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
- exprX = *pExpr->pLeft;
- exprAnd.op = TK_AND;
- exprAnd.pLeft = &compLeft;
- exprAnd.pRight = &compRight;
- compLeft.op = TK_GE;
- compLeft.pLeft = &exprX;
- compLeft.pRight = pExpr->x.pList->a[0].pExpr;
- compRight.op = TK_LE;
- compRight.pLeft = &exprX;
- compRight.pRight = pExpr->x.pList->a[1].pExpr;
- exprToRegister(&exprX, exprCodeVector(pParse, &exprX, ®Free1));
- if( xJump ){
- xJump(pParse, &exprAnd, dest, jumpIfNull);
- }else{
- /* Mark the expression is being from the ON or USING clause of a join
- ** so that the sqlite3ExprCodeTarget() routine will not attempt to move
- ** it into the Parse.pConstExpr list. We should use a new bit for this,
- ** for clarity, but we are out of bits in the Expr.flags field so we
- ** have to reuse the EP_FromJoin bit. Bummer. */
- exprX.flags |= EP_FromJoin;
- sqlite3ExprCodeTarget(pParse, &exprAnd, dest);
+ pDel = sqlite3ExprDup(db, pExpr->pLeft, 0);
+ if( db->mallocFailed==0 ){
+ exprAnd.op = TK_AND;
+ exprAnd.pLeft = &compLeft;
+ exprAnd.pRight = &compRight;
+ compLeft.op = TK_GE;
+ compLeft.pLeft = pDel;
+ compLeft.pRight = pExpr->x.pList->a[0].pExpr;
+ compRight.op = TK_LE;
+ compRight.pLeft = pDel;
+ compRight.pRight = pExpr->x.pList->a[1].pExpr;
+ exprToRegister(pDel, exprCodeVector(pParse, pDel, ®Free1));
+ if( xJump ){
+ xJump(pParse, &exprAnd, dest, jumpIfNull);
+ }else{
+ /* Mark the expression is being from the ON or USING clause of a join
+ ** so that the sqlite3ExprCodeTarget() routine will not attempt to move
+ ** it into the Parse.pConstExpr list. We should use a new bit for this,
+ ** for clarity, but we are out of bits in the Expr.flags field so we
+ ** have to reuse the EP_FromJoin bit. Bummer. */
+ pDel->flags |= EP_FromJoin;
+ sqlite3ExprCodeTarget(pParse, &exprAnd, dest);
+ }
+ sqlite3ReleaseTempReg(pParse, regFree1);
}
- sqlite3ReleaseTempReg(pParse, regFree1);
+ sqlite3ExprDelete(db, pDel);
/* Ensure adequate test coverage */
testcase( xJump==sqlite3ExprIfTrue && jumpIfNull==0 && regFree1==0 );
@@ -100123,18 +102044,23 @@ SQLITE_PRIVATE void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int
if( NEVER(pExpr==0) ) return; /* No way this can happen */
op = pExpr->op;
switch( op ){
- case TK_AND: {
- int d2 = sqlite3VdbeMakeLabel(v);
- testcase( jumpIfNull==0 );
- sqlite3ExprIfFalse(pParse, pExpr->pLeft, d2,jumpIfNull^SQLITE_JUMPIFNULL);
- sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
- sqlite3VdbeResolveLabel(v, d2);
- break;
- }
+ case TK_AND:
case TK_OR: {
- testcase( jumpIfNull==0 );
- sqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
- sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
+ Expr *pAlt = sqlite3ExprSimplifiedAndOr(pExpr);
+ if( pAlt!=pExpr ){
+ sqlite3ExprIfTrue(pParse, pAlt, dest, jumpIfNull);
+ }else if( op==TK_AND ){
+ int d2 = sqlite3VdbeMakeLabel(pParse);
+ testcase( jumpIfNull==0 );
+ sqlite3ExprIfFalse(pParse, pExpr->pLeft, d2,
+ jumpIfNull^SQLITE_JUMPIFNULL);
+ sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
+ sqlite3VdbeResolveLabel(v, d2);
+ }else{
+ testcase( jumpIfNull==0 );
+ sqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
+ sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
+ }
break;
}
case TK_NOT: {
@@ -100210,7 +102136,7 @@ SQLITE_PRIVATE void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int
}
#ifndef SQLITE_OMIT_SUBQUERY
case TK_IN: {
- int destIfFalse = sqlite3VdbeMakeLabel(v);
+ int destIfFalse = sqlite3VdbeMakeLabel(pParse);
int destIfNull = jumpIfNull ? dest : destIfFalse;
sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
sqlite3VdbeGoto(v, dest);
@@ -100220,9 +102146,9 @@ SQLITE_PRIVATE void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int
#endif
default: {
default_expr:
- if( exprAlwaysTrue(pExpr) ){
+ if( ExprAlwaysTrue(pExpr) ){
sqlite3VdbeGoto(v, dest);
- }else if( exprAlwaysFalse(pExpr) ){
+ }else if( ExprAlwaysFalse(pExpr) ){
/* No-op */
}else{
r1 = sqlite3ExprCodeTemp(pParse, pExpr, ®Free1);
@@ -100290,18 +102216,23 @@ SQLITE_PRIVATE void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int
assert( pExpr->op!=TK_GE || op==OP_Lt );
switch( pExpr->op ){
- case TK_AND: {
- testcase( jumpIfNull==0 );
- sqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
- sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
- break;
- }
+ case TK_AND:
case TK_OR: {
- int d2 = sqlite3VdbeMakeLabel(v);
- testcase( jumpIfNull==0 );
- sqlite3ExprIfTrue(pParse, pExpr->pLeft, d2, jumpIfNull^SQLITE_JUMPIFNULL);
- sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
- sqlite3VdbeResolveLabel(v, d2);
+ Expr *pAlt = sqlite3ExprSimplifiedAndOr(pExpr);
+ if( pAlt!=pExpr ){
+ sqlite3ExprIfFalse(pParse, pAlt, dest, jumpIfNull);
+ }else if( pExpr->op==TK_AND ){
+ testcase( jumpIfNull==0 );
+ sqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
+ sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
+ }else{
+ int d2 = sqlite3VdbeMakeLabel(pParse);
+ testcase( jumpIfNull==0 );
+ sqlite3ExprIfTrue(pParse, pExpr->pLeft, d2,
+ jumpIfNull^SQLITE_JUMPIFNULL);
+ sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
+ sqlite3VdbeResolveLabel(v, d2);
+ }
break;
}
case TK_NOT: {
@@ -100381,7 +102312,7 @@ SQLITE_PRIVATE void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int
if( jumpIfNull ){
sqlite3ExprCodeIN(pParse, pExpr, dest, dest);
}else{
- int destIfNull = sqlite3VdbeMakeLabel(v);
+ int destIfNull = sqlite3VdbeMakeLabel(pParse);
sqlite3ExprCodeIN(pParse, pExpr, dest, destIfNull);
sqlite3VdbeResolveLabel(v, destIfNull);
}
@@ -100390,9 +102321,9 @@ SQLITE_PRIVATE void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int
#endif
default: {
default_expr:
- if( exprAlwaysFalse(pExpr) ){
+ if( ExprAlwaysFalse(pExpr) ){
sqlite3VdbeGoto(v, dest);
- }else if( exprAlwaysTrue(pExpr) ){
+ }else if( ExprAlwaysTrue(pExpr) ){
/* no-op */
}else{
r1 = sqlite3ExprCodeTemp(pParse, pExpr, ®Free1);
@@ -100502,7 +102433,7 @@ SQLITE_PRIVATE int sqlite3ExprCompare(Parse *pParse, Expr *pA, Expr *pB, int iTa
}
return 2;
}
- if( pA->op!=pB->op ){
+ if( pA->op!=pB->op || pA->op==TK_RAISE ){
if( pA->op==TK_COLLATE && sqlite3ExprCompare(pParse, pA->pLeft,pB,iTab)<2 ){
return 1;
}
@@ -100512,42 +102443,44 @@ SQLITE_PRIVATE int sqlite3ExprCompare(Parse *pParse, Expr *pA, Expr *pB, int iTa
return 2;
}
if( pA->op!=TK_COLUMN && pA->op!=TK_AGG_COLUMN && pA->u.zToken ){
- if( pA->op==TK_FUNCTION ){
+ if( pA->op==TK_FUNCTION || pA->op==TK_AGG_FUNCTION ){
if( sqlite3StrICmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ assert( pA->op==pB->op );
+ if( ExprHasProperty(pA,EP_WinFunc)!=ExprHasProperty(pB,EP_WinFunc) ){
+ return 2;
+ }
+ if( ExprHasProperty(pA,EP_WinFunc) ){
+ if( sqlite3WindowCompare(pParse, pA->y.pWin, pB->y.pWin, 1)!=0 ){
+ return 2;
+ }
+ }
+#endif
+ }else if( pA->op==TK_NULL ){
+ return 0;
}else if( pA->op==TK_COLLATE ){
if( sqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
- }else if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
+ }else if( ALWAYS(pB->u.zToken!=0) && strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
return 2;
}
}
if( (pA->flags & EP_Distinct)!=(pB->flags & EP_Distinct) ) return 2;
- if( ALWAYS((combinedFlags & EP_TokenOnly)==0) ){
+ if( (combinedFlags & EP_TokenOnly)==0 ){
if( combinedFlags & EP_xIsSelect ) return 2;
if( (combinedFlags & EP_FixedCol)==0
&& sqlite3ExprCompare(pParse, pA->pLeft, pB->pLeft, iTab) ) return 2;
if( sqlite3ExprCompare(pParse, pA->pRight, pB->pRight, iTab) ) return 2;
if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
- assert( (combinedFlags & EP_Reduced)==0 );
- if( pA->op!=TK_STRING && pA->op!=TK_TRUEFALSE ){
+ if( pA->op!=TK_STRING
+ && pA->op!=TK_TRUEFALSE
+ && (combinedFlags & EP_Reduced)==0
+ ){
if( pA->iColumn!=pB->iColumn ) return 2;
- if( pA->iTable!=pB->iTable
+ if( pA->op2!=pB->op2 ) return 2;
+ if( pA->op!=TK_IN
+ && pA->iTable!=pB->iTable
&& (pA->iTable!=iTab || NEVER(pB->iTable>=0)) ) return 2;
}
-#ifndef SQLITE_OMIT_WINDOWFUNC
- /* Justification for the assert():
- ** window functions have p->op==TK_FUNCTION but aggregate functions
- ** have p->op==TK_AGG_FUNCTION. So any comparison between an aggregate
- ** function and a window function should have failed before reaching
- ** this point. And, it is not possible to have a window function and
- ** a scalar function with the same name and number of arguments. So
- ** if we reach this point, either A and B both window functions or
- ** neither are a window functions. */
- assert( (pA->pWin==0)==(pB->pWin==0) );
-
- if( pA->pWin!=0 ){
- if( sqlite3WindowCompare(pParse,pA->pWin,pB->pWin)!=0 ) return 2;
- }
-#endif
}
return 0;
}
@@ -100575,7 +102508,7 @@ SQLITE_PRIVATE int sqlite3ExprListCompare(ExprList *pA, ExprList *pB, int iTab){
for(i=0; inExpr; i++){
Expr *pExprA = pA->a[i].pExpr;
Expr *pExprB = pB->a[i].pExpr;
- if( pA->a[i].sortOrder!=pB->a[i].sortOrder ) return 1;
+ if( pA->a[i].sortFlags!=pB->a[i].sortFlags ) return 1;
if( sqlite3ExprCompare(0, pExprA, pExprB, iTab) ) return 1;
}
return 0;
@@ -100587,11 +102520,88 @@ SQLITE_PRIVATE int sqlite3ExprListCompare(ExprList *pA, ExprList *pB, int iTab){
*/
SQLITE_PRIVATE int sqlite3ExprCompareSkip(Expr *pA, Expr *pB, int iTab){
return sqlite3ExprCompare(0,
- sqlite3ExprSkipCollate(pA),
- sqlite3ExprSkipCollate(pB),
+ sqlite3ExprSkipCollateAndLikely(pA),
+ sqlite3ExprSkipCollateAndLikely(pB),
iTab);
}
+/*
+** Return non-zero if Expr p can only be true if pNN is not NULL.
+**
+** Or if seenNot is true, return non-zero if Expr p can only be
+** non-NULL if pNN is not NULL
+*/
+static int exprImpliesNotNull(
+ Parse *pParse, /* Parsing context */
+ Expr *p, /* The expression to be checked */
+ Expr *pNN, /* The expression that is NOT NULL */
+ int iTab, /* Table being evaluated */
+ int seenNot /* Return true only if p can be any non-NULL value */
+){
+ assert( p );
+ assert( pNN );
+ if( sqlite3ExprCompare(pParse, p, pNN, iTab)==0 ){
+ return pNN->op!=TK_NULL;
+ }
+ switch( p->op ){
+ case TK_IN: {
+ if( seenNot && ExprHasProperty(p, EP_xIsSelect) ) return 0;
+ assert( ExprHasProperty(p,EP_xIsSelect)
+ || (p->x.pList!=0 && p->x.pList->nExpr>0) );
+ return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
+ }
+ case TK_BETWEEN: {
+ ExprList *pList = p->x.pList;
+ assert( pList!=0 );
+ assert( pList->nExpr==2 );
+ if( seenNot ) return 0;
+ if( exprImpliesNotNull(pParse, pList->a[0].pExpr, pNN, iTab, 1)
+ || exprImpliesNotNull(pParse, pList->a[1].pExpr, pNN, iTab, 1)
+ ){
+ return 1;
+ }
+ return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
+ }
+ case TK_EQ:
+ case TK_NE:
+ case TK_LT:
+ case TK_LE:
+ case TK_GT:
+ case TK_GE:
+ case TK_PLUS:
+ case TK_MINUS:
+ case TK_BITOR:
+ case TK_LSHIFT:
+ case TK_RSHIFT:
+ case TK_CONCAT:
+ seenNot = 1;
+ /* Fall thru */
+ case TK_STAR:
+ case TK_REM:
+ case TK_BITAND:
+ case TK_SLASH: {
+ if( exprImpliesNotNull(pParse, p->pRight, pNN, iTab, seenNot) ) return 1;
+ /* Fall thru into the next case */
+ }
+ case TK_SPAN:
+ case TK_COLLATE:
+ case TK_UPLUS:
+ case TK_UMINUS: {
+ return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, seenNot);
+ }
+ case TK_TRUTH: {
+ if( seenNot ) return 0;
+ if( p->op2!=TK_IS ) return 0;
+ return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
+ }
+ case TK_BITNOT:
+ case TK_NOT: {
+ return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
+ }
+ }
+ return 0;
+}
+
/*
** Return true if we can prove the pE2 will always be true if pE1 is
** true. Return false if we cannot complete the proof or if pE2 might
@@ -100627,10 +102637,10 @@ SQLITE_PRIVATE int sqlite3ExprImpliesExpr(Parse *pParse, Expr *pE1, Expr *pE2, i
){
return 1;
}
- if( pE2->op==TK_NOTNULL && pE1->op!=TK_ISNULL && pE1->op!=TK_IS ){
- Expr *pX = sqlite3ExprSkipCollate(pE1->pLeft);
- testcase( pX!=pE1->pLeft );
- if( sqlite3ExprCompare(pParse, pX, pE2->pLeft, iTab)==0 ) return 1;
+ if( pE2->op==TK_NOTNULL
+ && exprImpliesNotNull(pParse, pE1, pE2->pLeft, iTab, 0)
+ ){
+ return 1;
}
return 0;
}
@@ -100650,21 +102660,23 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune;
switch( pExpr->op ){
case TK_ISNOT:
- case TK_NOT:
case TK_ISNULL:
+ case TK_NOTNULL:
case TK_IS:
case TK_OR:
case TK_CASE:
case TK_IN:
case TK_FUNCTION:
+ case TK_TRUTH:
testcase( pExpr->op==TK_ISNOT );
- testcase( pExpr->op==TK_NOT );
testcase( pExpr->op==TK_ISNULL );
+ testcase( pExpr->op==TK_NOTNULL );
testcase( pExpr->op==TK_IS );
testcase( pExpr->op==TK_OR );
testcase( pExpr->op==TK_CASE );
testcase( pExpr->op==TK_IN );
testcase( pExpr->op==TK_FUNCTION );
+ testcase( pExpr->op==TK_TRUTH );
return WRC_Prune;
case TK_COLUMN:
if( pWalker->u.iCur==pExpr->iTable ){
@@ -100673,6 +102685,18 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
}
return WRC_Prune;
+ case TK_AND:
+ if( sqlite3ExprImpliesNonNullRow(pExpr->pLeft, pWalker->u.iCur)
+ && sqlite3ExprImpliesNonNullRow(pExpr->pRight, pWalker->u.iCur)
+ ){
+ pWalker->eCode = 1;
+ }
+ return WRC_Prune;
+
+ case TK_BETWEEN:
+ sqlite3WalkExpr(pWalker, pExpr->pLeft);
+ return WRC_Prune;
+
/* Virtual tables are allowed to use constraints like x=NULL. So
** a term of the form x=y does not prove that y is not null if x
** is the column of a virtual table */
@@ -100688,11 +102712,12 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
testcase( pExpr->op==TK_LE );
testcase( pExpr->op==TK_GT );
testcase( pExpr->op==TK_GE );
- if( (pExpr->pLeft->op==TK_COLUMN && IsVirtual(pExpr->pLeft->pTab))
- || (pExpr->pRight->op==TK_COLUMN && IsVirtual(pExpr->pRight->pTab))
+ if( (pExpr->pLeft->op==TK_COLUMN && IsVirtual(pExpr->pLeft->y.pTab))
+ || (pExpr->pRight->op==TK_COLUMN && IsVirtual(pExpr->pRight->y.pTab))
){
return WRC_Prune;
}
+
default:
return WRC_Continue;
}
@@ -100722,6 +102747,17 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
*/
SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr *p, int iTab){
Walker w;
+ p = sqlite3ExprSkipCollateAndLikely(p);
+ while( p ){
+ if( p->op==TK_NOTNULL ){
+ p = p->pLeft;
+ }else if( p->op==TK_AND ){
+ if( sqlite3ExprImpliesNonNullRow(p->pLeft, iTab) ) return 1;
+ p = p->pRight;
+ }else{
+ break;
+ }
+ }
w.xExprCallback = impliesNotNullRow;
w.xSelectCallback = 0;
w.xSelectCallback2 = 0;
@@ -100817,7 +102853,10 @@ static int exprSrcCount(Walker *pWalker, Expr *pExpr){
}
if( inThis++;
- }else{
+ }else if( nSrc==0 || pExpr->iTablea[0].iCursor ){
+ /* In a well-formed parse tree (no name resolution errors),
+ ** TK_COLUMN nodes with smaller Expr.iTable values are in an
+ ** outer context. Those are the only ones to count as "other" */
p->nOther++;
}
}
@@ -100834,8 +102873,9 @@ SQLITE_PRIVATE int sqlite3FunctionUsesThisSrc(Expr *pExpr, SrcList *pSrcList){
Walker w;
struct SrcCount cnt;
assert( pExpr->op==TK_AGG_FUNCTION );
+ memset(&w, 0, sizeof(w));
w.xExprCallback = exprSrcCount;
- w.xSelectCallback = 0;
+ w.xSelectCallback = sqlite3SelectWalkNoop;
w.u.pSrcCount = &cnt;
cnt.pSrc = pSrcList;
cnt.nThis = 0;
@@ -100920,7 +102960,7 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){
&& (k = addAggInfoColumn(pParse->db, pAggInfo))>=0
){
pCol = &pAggInfo->aCol[k];
- pCol->pTab = pExpr->pTab;
+ pCol->pTab = pExpr->y.pTab;
pCol->iTable = pExpr->iTable;
pCol->iColumn = pExpr->iColumn;
pCol->iMem = ++pParse->nMem;
@@ -101033,6 +103073,7 @@ SQLITE_PRIVATE void sqlite3ExprAnalyzeAggregates(NameContext *pNC, Expr *pExpr){
w.xSelectCallback2 = analyzeAggregatesInSelectEnd;
w.walkerDepth = 0;
w.u.pNC = pNC;
+ w.pParse = 0;
assert( pNC->pSrcList!=0 );
sqlite3WalkExpr(&w, pExpr);
}
@@ -101103,6 +103144,11 @@ SQLITE_PRIVATE void sqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){
/*
** Mark all temporary registers as being unavailable for reuse.
+**
+** Always invoke this procedure after coding a subroutine or co-routine
+** that might be invoked from other parts of the code, to ensure that
+** the sub/co-routine does not use registers in common with the code that
+** invokes the sub/co-routine.
*/
SQLITE_PRIVATE void sqlite3ClearTempRegCache(Parse *pParse){
pParse->nTempReg = 0;
@@ -101164,9 +103210,16 @@ SQLITE_PRIVATE int sqlite3NoTempsInRange(Parse *pParse, int iFirst, int iLast){
**
** Or, if zName is not a system table, zero is returned.
*/
-static int isSystemTable(Parse *pParse, const char *zName){
- if( 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
- sqlite3ErrorMsg(pParse, "table %s may not be altered", zName);
+static int isAlterableTable(Parse *pParse, Table *pTab){
+ if( 0==sqlite3StrNICmp(pTab->zName, "sqlite_", 7)
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+ || ( (pTab->tabFlags & TF_Shadow)
+ && (pParse->db->flags & SQLITE_Defensive)
+ && pParse->db->nVdbeExec==0
+ )
+#endif
+ ){
+ sqlite3ErrorMsg(pParse, "table %s may not be altered", pTab->zName);
return 1;
}
return 0;
@@ -101183,7 +103236,7 @@ static void renameTestSchema(Parse *pParse, const char *zDb, int bTemp){
sqlite3NestedParse(pParse,
"SELECT 1 "
"FROM \"%w\".%s "
- "WHERE name NOT LIKE 'sqlite_%%'"
+ "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
" AND sql NOT LIKE 'create virtual%%'"
" AND sqlite_rename_test(%Q, sql, type, name, %d)=NULL ",
zDb, MASTER_NAME,
@@ -101194,7 +103247,7 @@ static void renameTestSchema(Parse *pParse, const char *zDb, int bTemp){
sqlite3NestedParse(pParse,
"SELECT 1 "
"FROM temp.%s "
- "WHERE name NOT LIKE 'sqlite_%%'"
+ "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
" AND sql NOT LIKE 'create virtual%%'"
" AND sqlite_rename_test(%Q, sql, type, name, 1)=NULL ",
MASTER_NAME, zDb
@@ -101262,11 +103315,11 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
/* Make sure it is not a system table being altered, or a reserved name
** that the table is being renamed to.
*/
- if( SQLITE_OK!=isSystemTable(pParse, pTab->zName) ){
+ if( SQLITE_OK!=isAlterableTable(pParse, pTab) ){
goto exit_rename_table;
}
- if( SQLITE_OK!=sqlite3CheckObjectName(pParse, zName) ){ goto
- exit_rename_table;
+ if( SQLITE_OK!=sqlite3CheckObjectName(pParse,zName,"table",zName) ){
+ goto exit_rename_table;
}
#ifndef SQLITE_OMIT_VIEW
@@ -101295,15 +103348,15 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
}
#endif
- /* Begin a transaction for database iDb.
- ** Then modify the schema cookie (since the ALTER TABLE modifies the
- ** schema). Open a statement transaction if the table is a virtual
- ** table.
- */
+ /* Begin a transaction for database iDb. Then modify the schema cookie
+ ** (since the ALTER TABLE modifies the schema). Call sqlite3MayAbort(),
+ ** as the scalar functions (e.g. sqlite_rename_table()) invoked by the
+ ** nested SQL may raise an exception. */
v = sqlite3GetVdbe(pParse);
if( v==0 ){
goto exit_rename_table;
}
+ sqlite3MayAbort(pParse);
/* figure out how many UTF-8 characters are in zName */
zTabName = pTab->zName;
@@ -101315,7 +103368,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
"UPDATE \"%w\".%s SET "
"sql = sqlite_rename_table(%Q, type, name, sql, %Q, %Q, %d) "
"WHERE (type!='index' OR tbl_name=%Q COLLATE nocase)"
- "AND name NOT LIKE 'sqlite_%%'"
+ "AND name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
, zDb, MASTER_NAME, zDb, zTabName, zName, (iDb==1), zTabName
);
@@ -101326,7 +103379,8 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
"tbl_name = %Q, "
"name = CASE "
"WHEN type='table' THEN %Q "
- "WHEN name LIKE 'sqlite_autoindex%%' AND type='index' THEN "
+ "WHEN name LIKE 'sqliteX_autoindex%%' ESCAPE 'X' "
+ " AND type='index' THEN "
"'sqlite_autoindex_' || %Q || substr(name,%d+18) "
"ELSE name END "
"WHERE tbl_name=%Q COLLATE nocase AND "
@@ -101372,7 +103426,6 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
int i = ++pParse->nMem;
sqlite3VdbeLoadString(v, i, zName);
sqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
- sqlite3MayAbort(pParse);
}
#endif
@@ -101560,10 +103613,11 @@ SQLITE_PRIVATE void sqlite3AlterBeginAddColumn(Parse *pParse, SrcList *pSrc){
sqlite3ErrorMsg(pParse, "Cannot add a column to a view");
goto exit_begin_add_column;
}
- if( SQLITE_OK!=isSystemTable(pParse, pTab->zName) ){
+ if( SQLITE_OK!=isAlterableTable(pParse, pTab) ){
goto exit_begin_add_column;
}
+ sqlite3MayAbort(pParse);
assert( pTab->addColOffset>0 );
iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
@@ -101662,7 +103716,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameColumn(
if( !pTab ) goto exit_rename_column;
/* Cannot alter a system table */
- if( SQLITE_OK!=isSystemTable(pParse, pTab->zName) ) goto exit_rename_column;
+ if( SQLITE_OK!=isAlterableTable(pParse, pTab) ) goto exit_rename_column;
if( SQLITE_OK!=isRealTable(pParse, pTab) ) goto exit_rename_column;
/* Which schema holds the table to be altered */
@@ -101693,6 +103747,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameColumn(
** uses the sqlite_rename_column() SQL function to compute the new
** CREATE statement text for the sqlite_master table.
*/
+ sqlite3MayAbort(pParse);
zNew = sqlite3NameFromToken(db, pNew);
if( !zNew ) goto exit_rename_column;
assert( pNew->n>0 );
@@ -101700,7 +103755,8 @@ SQLITE_PRIVATE void sqlite3AlterRenameColumn(
sqlite3NestedParse(pParse,
"UPDATE \"%w\".%s SET "
"sql = sqlite_rename_column(sql, type, name, %Q, %Q, %d, %Q, %d, %d) "
- "WHERE name NOT LIKE 'sqlite_%%' AND (type != 'index' OR tbl_name = %Q)"
+ "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X' "
+ " AND (type != 'index' OR tbl_name = %Q)"
" AND sql NOT LIKE 'create virtual%%'",
zDb, MASTER_NAME,
zDb, pTab->zName, iCol, zNew, bQuote, iSchema==1,
@@ -101803,10 +103859,16 @@ static void renameTokenCheckAll(Parse *pParse, void *pPtr){
#endif
/*
-** Add a new RenameToken object mapping parse tree element pPtr into
-** token *pToken to the Parse object currently under construction.
+** Remember that the parser tree element pPtr was created using
+** the token pToken.
**
-** Return a copy of pPtr.
+** In other words, construct a new RenameToken object and add it
+** to the list of RenameToken objects currently being built up
+** in pParse->pRename.
+**
+** The pPtr argument is returned so that this routine can be used
+** with tail recursion in tokenExpr() routine, for a small performance
+** improvement.
*/
SQLITE_PRIVATE void *sqlite3RenameTokenMap(Parse *pParse, void *pPtr, Token *pToken){
RenameToken *pNew;
@@ -101848,6 +103910,29 @@ static int renameUnmapExprCb(Walker *pWalker, Expr *pExpr){
return WRC_Continue;
}
+/*
+** Walker callback used by sqlite3RenameExprUnmap().
+*/
+static int renameUnmapSelectCb(Walker *pWalker, Select *p){
+ Parse *pParse = pWalker->pParse;
+ int i;
+ if( ALWAYS(p->pEList) ){
+ ExprList *pList = p->pEList;
+ for(i=0; inExpr; i++){
+ if( pList->a[i].zName ){
+ sqlite3RenameTokenRemap(pParse, 0, (void*)pList->a[i].zName);
+ }
+ }
+ }
+ if( ALWAYS(p->pSrc) ){ /* Every Select as a SrcList, even if it is empty */
+ SrcList *pSrc = p->pSrc;
+ for(i=0; inSrc; i++){
+ sqlite3RenameTokenRemap(pParse, 0, (void*)pSrc->a[i].zName);
+ }
+ }
+ return WRC_Continue;
+}
+
/*
** Remove all nodes that are part of expression pExpr from the rename list.
*/
@@ -101856,6 +103941,7 @@ SQLITE_PRIVATE void sqlite3RenameExprUnmap(Parse *pParse, Expr *pExpr){
memset(&sWalker, 0, sizeof(Walker));
sWalker.pParse = pParse;
sWalker.xExprCallback = renameUnmapExprCb;
+ sWalker.xSelectCallback = renameUnmapSelectCb;
sqlite3WalkExpr(&sWalker, pExpr);
}
@@ -101910,14 +103996,31 @@ static void renameTokenFind(Parse *pParse, struct RenameCtx *pCtx, void *pPtr){
}
}
+/*
+** Iterate through the Select objects that are part of WITH clauses attached
+** to select statement pSelect.
+*/
+static void renameWalkWith(Walker *pWalker, Select *pSelect){
+ if( pSelect->pWith ){
+ int i;
+ for(i=0; ipWith->nCte; i++){
+ Select *p = pSelect->pWith->a[i].pSelect;
+ NameContext sNC;
+ memset(&sNC, 0, sizeof(sNC));
+ sNC.pParse = pWalker->pParse;
+ sqlite3SelectPrep(sNC.pParse, p, &sNC);
+ sqlite3WalkSelect(pWalker, p);
+ }
+ }
+}
+
/*
** This is a Walker select callback. It does nothing. It is only required
** because without a dummy callback, sqlite3WalkExpr() and similar do not
** descend into sub-select statements.
*/
static int renameColumnSelectCb(Walker *pWalker, Select *p){
- UNUSED_PARAMETER(pWalker);
- UNUSED_PARAMETER(p);
+ renameWalkWith(pWalker, p);
return WRC_Continue;
}
@@ -101939,7 +104042,7 @@ static int renameColumnExprCb(Walker *pWalker, Expr *pExpr){
renameTokenFind(pWalker->pParse, p, (void*)pExpr);
}else if( pExpr->op==TK_COLUMN
&& pExpr->iColumn==p->iCol
- && p->pTab==pExpr->pTab
+ && p->pTab==pExpr->y.pTab
){
renameTokenFind(pWalker->pParse, p, (void*)pExpr);
}
@@ -102067,7 +104170,6 @@ static int renameParseSql(
rc = sqlite3RunParser(p, zSql, &zErr);
assert( p->zErrMsg==0 );
assert( rc!=SQLITE_OK || zErr==0 );
- assert( (0!=p->pNewTable) + (0!=p->pNewIndex) + (0!=p->pNewTrigger)<2 );
p->zErrMsg = zErr;
if( db->mallocFailed ) rc = SQLITE_NOMEM;
if( rc==SQLITE_OK
@@ -102197,9 +104299,14 @@ static int renameResolveTrigger(Parse *pParse, const char *zDb){
db->aDb[sqlite3SchemaToIndex(db, pNew->pTabSchema)].zDbSName
);
pParse->eTriggerOp = pNew->op;
+ /* ALWAYS() because if the table of the trigger does not exist, the
+ ** error would have been hit before this point */
+ if( ALWAYS(pParse->pTriggerTab) ){
+ rc = sqlite3ViewGetColumnNames(pParse, pParse->pTriggerTab);
+ }
/* Resolve symbols in WHEN clause */
- if( pNew->pWhen ){
+ if( rc==SQLITE_OK && pNew->pWhen ){
rc = sqlite3ResolveExprNames(&sNC, pNew->pWhen);
}
@@ -102245,6 +104352,7 @@ static int renameResolveTrigger(Parse *pParse, const char *zDb){
}
sNC.ncFlags = 0;
}
+ sNC.pSrcList = 0;
}
}
}
@@ -102282,11 +104390,15 @@ static void renameWalkTrigger(Walker *pWalker, Trigger *pTrigger){
*/
static void renameParseCleanup(Parse *pParse){
sqlite3 *db = pParse->db;
+ Index *pIdx;
if( pParse->pVdbe ){
sqlite3VdbeFinalize(pParse->pVdbe);
}
sqlite3DeleteTable(db, pParse->pNewTable);
- if( pParse->pNewIndex ) sqlite3FreeIndex(db, pParse->pNewIndex);
+ while( (pIdx = pParse->pNewIndex)!=0 ){
+ pParse->pNewIndex = pIdx->pNext;
+ sqlite3FreeIndex(db, pIdx);
+ }
sqlite3DeleteTrigger(db, pParse->pNewTrigger);
sqlite3DbFree(db, pParse->zErrMsg);
renameTokenFree(db, pParse->pRename);
@@ -102313,15 +104425,8 @@ static void renameParseCleanup(Parse *pParse){
** into zNew. The name should be quoted if bQuote is true.
**
** This function is used internally by the ALTER TABLE RENAME COLUMN command.
-** Though accessible to application code, it is not intended for use by
-** applications. The existance of this function, and the way it works,
-** is subject to change without notice.
-**
-** If any of the parameters are out-of-bounds, then simply return NULL.
-** An out-of-bounds parameter can only occur when the application calls
-** this function directly. The parameters will always be well-formed when
-** this routine is invoked by the bytecode for a legitimate ALTER TABLE
-** statement.
+** It is only accessible to SQL created using sqlite3NestedParse(). It is
+** not reachable from ordinary SQL passed into sqlite3_prepare().
*/
static void renameColumnFunc(
sqlite3_context *context,
@@ -102404,6 +104509,9 @@ static void renameColumnFunc(
for(pIdx=sParse.pNewTable->pIndex; pIdx; pIdx=pIdx->pNext){
sqlite3WalkExprList(&sWalker, pIdx->aColExpr);
}
+ for(pIdx=sParse.pNewIndex; pIdx; pIdx=pIdx->pNext){
+ sqlite3WalkExprList(&sWalker, pIdx->aColExpr);
+ }
}
for(pFKey=sParse.pNewTable->pFKey; pFKey; pFKey=pFKey->pNextFrom){
@@ -102477,8 +104585,8 @@ renameColumnFunc_done:
*/
static int renameTableExprCb(Walker *pWalker, Expr *pExpr){
RenameCtx *p = pWalker->u.pRename;
- if( pExpr->op==TK_COLUMN && p->pTab==pExpr->pTab ){
- renameTokenFind(pWalker->pParse, p, (void*)&pExpr->pTab);
+ if( pExpr->op==TK_COLUMN && p->pTab==pExpr->y.pTab ){
+ renameTokenFind(pWalker->pParse, p, (void*)&pExpr->y.pTab);
}
return WRC_Continue;
}
@@ -102490,12 +104598,17 @@ static int renameTableSelectCb(Walker *pWalker, Select *pSelect){
int i;
RenameCtx *p = pWalker->u.pRename;
SrcList *pSrc = pSelect->pSrc;
+ if( pSrc==0 ){
+ assert( pWalker->pParse->db->mallocFailed );
+ return WRC_Abort;
+ }
for(i=0; inSrc; i++){
struct SrcList_item *pItem = &pSrc->a[i];
if( pItem->pTab==p->pTab ){
renameTokenFind(pWalker->pParse, p, pItem->zName);
}
}
+ renameWalkWith(pWalker, pSelect);
return WRC_Continue;
}
@@ -102575,7 +104688,7 @@ static void renameTableFunc(
}else{
/* Modify any FK definitions to point to the new table. */
#ifndef SQLITE_OMIT_FOREIGN_KEY
- if( db->flags & SQLITE_ForeignKeys ){
+ if( isLegacy==0 || (db->flags & SQLITE_ForeignKeys) ){
FKey *pFKey;
for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
if( sqlite3_stricmp(pFKey->zTo, zOld)==0 ){
@@ -102729,9 +104842,9 @@ static void renameTableTest(
*/
SQLITE_PRIVATE void sqlite3AlterFunctions(void){
static FuncDef aAlterTableFuncs[] = {
- FUNCTION(sqlite_rename_column, 9, 0, 0, renameColumnFunc),
- FUNCTION(sqlite_rename_table, 7, 0, 0, renameTableFunc),
- FUNCTION(sqlite_rename_test, 5, 0, 0, renameTableTest),
+ INTERNAL_FUNCTION(sqlite_rename_column, 9, renameColumnFunc),
+ INTERNAL_FUNCTION(sqlite_rename_table, 7, renameTableFunc),
+ INTERNAL_FUNCTION(sqlite_rename_test, 5, renameTableTest),
};
sqlite3InsertBuiltinFuncs(aAlterTableFuncs, ArraySize(aAlterTableFuncs));
}
@@ -102768,13 +104881,13 @@ SQLITE_PRIVATE void sqlite3AlterFunctions(void){
** is between 3.6.18 and 3.7.8, inclusive, and unless SQLite is compiled
** with SQLITE_ENABLE_STAT2. The sqlite_stat2 table is deprecated.
** The sqlite_stat2 table is superseded by sqlite_stat3, which is only
-** created and used by SQLite versions 3.7.9 and later and with
+** created and used by SQLite versions 3.7.9 through 3.29.0 when
** SQLITE_ENABLE_STAT3 defined. The functionality of sqlite_stat3
-** is a superset of sqlite_stat2. The sqlite_stat4 is an enhanced
-** version of sqlite_stat3 and is only available when compiled with
-** SQLITE_ENABLE_STAT4 and in SQLite versions 3.8.1 and later. It is
-** not possible to enable both STAT3 and STAT4 at the same time. If they
-** are both enabled, then STAT4 takes precedence.
+** is a superset of sqlite_stat2 and is also now deprecated. The
+** sqlite_stat4 is an enhanced version of sqlite_stat3 and is only
+** available when compiled with SQLITE_ENABLE_STAT4 and in SQLite
+** versions 3.8.1 and later. STAT4 is the only variant that is still
+** supported.
**
** For most applications, sqlite_stat1 provides all the statistics required
** for the query planner to make good choices.
@@ -102885,17 +104998,11 @@ SQLITE_PRIVATE void sqlite3AlterFunctions(void){
#if defined(SQLITE_ENABLE_STAT4)
# define IsStat4 1
-# define IsStat3 0
-#elif defined(SQLITE_ENABLE_STAT3)
-# define IsStat4 0
-# define IsStat3 1
#else
# define IsStat4 0
-# define IsStat3 0
# undef SQLITE_STAT4_SAMPLES
# define SQLITE_STAT4_SAMPLES 1
#endif
-#define IsStat34 (IsStat3+IsStat4) /* 1 for STAT3 or STAT4. 0 otherwise */
/*
** This routine generates code that opens the sqlite_statN tables.
@@ -102924,14 +105031,10 @@ static void openStatTable(
{ "sqlite_stat1", "tbl,idx,stat" },
#if defined(SQLITE_ENABLE_STAT4)
{ "sqlite_stat4", "tbl,idx,neq,nlt,ndlt,sample" },
- { "sqlite_stat3", 0 },
-#elif defined(SQLITE_ENABLE_STAT3)
- { "sqlite_stat3", "tbl,idx,neq,nlt,ndlt,sample" },
- { "sqlite_stat4", 0 },
#else
- { "sqlite_stat3", 0 },
{ "sqlite_stat4", 0 },
#endif
+ { "sqlite_stat3", 0 },
};
int i;
sqlite3 *db = pParse->db;
@@ -103012,7 +105115,7 @@ typedef struct Stat4Sample Stat4Sample;
struct Stat4Sample {
tRowcnt *anEq; /* sqlite_stat4.nEq */
tRowcnt *anDLt; /* sqlite_stat4.nDLt */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
tRowcnt *anLt; /* sqlite_stat4.nLt */
union {
i64 iRowid; /* Rowid in main table of the key */
@@ -103043,7 +105146,7 @@ struct Stat4Accum {
/* Reclaim memory used by a Stat4Sample
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
static void sampleClear(sqlite3 *db, Stat4Sample *p){
assert( db!=0 );
if( p->nRowid ){
@@ -103055,7 +105158,7 @@ static void sampleClear(sqlite3 *db, Stat4Sample *p){
/* Initialize the BLOB value of a ROWID
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
static void sampleSetRowid(sqlite3 *db, Stat4Sample *p, int n, const u8 *pData){
assert( db!=0 );
if( p->nRowid ) sqlite3DbFree(db, p->u.aRowid);
@@ -103071,7 +105174,7 @@ static void sampleSetRowid(sqlite3 *db, Stat4Sample *p, int n, const u8 *pData){
/* Initialize the INTEGER value of a ROWID.
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
static void sampleSetRowidInt64(sqlite3 *db, Stat4Sample *p, i64 iRowid){
assert( db!=0 );
if( p->nRowid ) sqlite3DbFree(db, p->u.aRowid);
@@ -103084,7 +105187,7 @@ static void sampleSetRowidInt64(sqlite3 *db, Stat4Sample *p, i64 iRowid){
/*
** Copy the contents of object (*pFrom) into (*pTo).
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
static void sampleCopy(Stat4Accum *p, Stat4Sample *pTo, Stat4Sample *pFrom){
pTo->isPSample = pFrom->isPSample;
pTo->iCol = pFrom->iCol;
@@ -103105,7 +105208,7 @@ static void sampleCopy(Stat4Accum *p, Stat4Sample *pTo, Stat4Sample *pFrom){
*/
static void stat4Destructor(void *pOld){
Stat4Accum *p = (Stat4Accum*)pOld;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
int i;
for(i=0; inCol; i++) sampleClear(p->db, p->aBest+i);
for(i=0; imxSample; i++) sampleClear(p->db, p->a+i);
@@ -103125,7 +105228,7 @@ static void stat4Destructor(void *pOld){
** WITHOUT ROWID table, N is the number of PRIMARY KEY columns, not the
** total number of columns in the table.
**
-** Note 2: C is only used for STAT3 and STAT4.
+** Note 2: C is only used for STAT4.
**
** For indexes on ordinary rowid tables, N==K+1. But for indexes on
** WITHOUT ROWID tables, N=K+P where P is the number of columns in the
@@ -103148,7 +105251,7 @@ static void statInit(
int nColUp; /* nCol rounded up for alignment */
int n; /* Bytes of space to allocate */
sqlite3 *db; /* Database connection */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
int mxSample = SQLITE_STAT4_SAMPLES;
#endif
@@ -103165,7 +105268,7 @@ static void statInit(
n = sizeof(*p)
+ sizeof(tRowcnt)*nColUp /* Stat4Accum.anEq */
+ sizeof(tRowcnt)*nColUp /* Stat4Accum.anDLt */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
+ sizeof(tRowcnt)*nColUp /* Stat4Accum.anLt */
+ sizeof(Stat4Sample)*(nCol+mxSample) /* Stat4Accum.aBest[], a[] */
+ sizeof(tRowcnt)*3*nColUp*(nCol+mxSample)
@@ -103185,7 +105288,7 @@ static void statInit(
p->current.anDLt = (tRowcnt*)&p[1];
p->current.anEq = &p->current.anDLt[nColUp];
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
{
u8 *pSpace; /* Allocated space not yet assigned */
int i; /* Used to iterate through p->aSample[] */
@@ -103220,7 +105323,7 @@ static void statInit(
sqlite3_result_blob(context, p, sizeof(*p), stat4Destructor);
}
static const FuncDef statInitFuncdef = {
- 2+IsStat34, /* nArg */
+ 2+IsStat4, /* nArg */
SQLITE_UTF8, /* funcFlags */
0, /* pUserData */
0, /* pNext */
@@ -103260,7 +105363,7 @@ static int sampleIsBetterPost(
}
#endif
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Return true if pNew is to be preferred over pOld.
**
@@ -103279,15 +105382,11 @@ static int sampleIsBetter(
assert( IsStat4 || (pNew->iCol==0 && pOld->iCol==0) );
if( (nEqNew>nEqOld) ) return 1;
-#ifdef SQLITE_ENABLE_STAT4
if( nEqNew==nEqOld ){
if( pNew->iColiCol ) return 1;
return (pNew->iCol==pOld->iCol && sampleIsBetterPost(pAccum, pNew, pOld));
}
return 0;
-#else
- return (nEqNew==nEqOld && pNew->iHash>pOld->iHash);
-#endif
}
/*
@@ -103300,7 +105399,6 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
assert( IsStat4 || nEqZero==0 );
-#ifdef SQLITE_ENABLE_STAT4
/* Stat4Accum.nMaxEqZero is set to the maximum number of leading 0
** values in the anEq[] array of any sample in Stat4Accum.a[]. In
** other words, if nMaxEqZero is n, then it is guaranteed that there
@@ -103334,7 +105432,6 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
goto find_new_min;
}
}
-#endif
/* If necessary, remove sample iMin to make room for the new sample. */
if( p->nSample>=p->mxSample ){
@@ -103355,10 +105452,8 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
/* The "rows less-than" for the rowid column must be greater than that
** for the last sample in the p->a[] array. Otherwise, the samples would
** be out of order. */
-#ifdef SQLITE_ENABLE_STAT4
assert( p->nSample==0
|| pNew->anLt[p->nCol-1] > p->a[p->nSample-1].anLt[p->nCol-1] );
-#endif
/* Insert the new sample */
pSample = &p->a[p->nSample];
@@ -103368,9 +105463,7 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
/* Zero the first nEqZero entries in the anEq[] array. */
memset(pSample->anEq, 0, sizeof(tRowcnt)*nEqZero);
-#ifdef SQLITE_ENABLE_STAT4
- find_new_min:
-#endif
+find_new_min:
if( p->nSample>=p->mxSample ){
int iMin = -1;
for(i=0; imxSample; i++){
@@ -103383,7 +105476,7 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
p->iMin = iMin;
}
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
/*
** Field iChng of the index being scanned has changed. So at this point
@@ -103424,28 +105517,7 @@ static void samplePushPrevious(Stat4Accum *p, int iChng){
}
#endif
-#if defined(SQLITE_ENABLE_STAT3) && !defined(SQLITE_ENABLE_STAT4)
- if( iChng==0 ){
- tRowcnt nLt = p->current.anLt[0];
- tRowcnt nEq = p->current.anEq[0];
-
- /* Check if this is to be a periodic sample. If so, add it. */
- if( (nLt/p->nPSample)!=(nLt+nEq)/p->nPSample ){
- p->current.isPSample = 1;
- sampleInsert(p, &p->current, 0);
- p->current.isPSample = 0;
- }else
-
- /* Or if it is a non-periodic sample. Add it in this case too. */
- if( p->nSamplemxSample
- || sampleIsBetter(p, &p->current, &p->a[p->iMin])
- ){
- sampleInsert(p, &p->current, 0);
- }
- }
-#endif
-
-#ifndef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifndef SQLITE_ENABLE_STAT4
UNUSED_PARAMETER( p );
UNUSED_PARAMETER( iChng );
#endif
@@ -103465,7 +105537,7 @@ static void samplePushPrevious(Stat4Accum *p, int iChng){
** index being analyzed. The stat_get() SQL function will later be used to
** extract relevant information for constructing the sqlite_statN tables.
**
-** The R parameter is only used for STAT3 and STAT4
+** The R parameter is only used for STAT4
*/
static void statPush(
sqlite3_context *context,
@@ -103497,14 +105569,14 @@ static void statPush(
}
for(i=iChng; inCol; i++){
p->current.anDLt[i]++;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
p->current.anLt[i] += p->current.anEq[i];
#endif
p->current.anEq[i] = 1;
}
}
p->nRow++;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( sqlite3_value_type(argv[2])==SQLITE_INTEGER ){
sampleSetRowidInt64(p->db, &p->current, sqlite3_value_int64(argv[2]));
}else{
@@ -103537,7 +105609,7 @@ static void statPush(
#endif
}
static const FuncDef statPushFuncdef = {
- 2+IsStat34, /* nArg */
+ 2+IsStat4, /* nArg */
SQLITE_UTF8, /* funcFlags */
0, /* pUserData */
0, /* pNext */
@@ -103568,7 +105640,7 @@ static const FuncDef statPushFuncdef = {
** parameter will always be a poiner to a Stat4Accum object, never a
** NULL.
**
-** If neither STAT3 nor STAT4 are enabled, then J is always
+** If STAT4 is not enabled, then J is always
** STAT_GET_STAT1 and is hence omitted and this routine becomes
** a one-parameter function, stat_get(P), that always returns the
** stat1 table entry information.
@@ -103579,8 +105651,8 @@ static void statGet(
sqlite3_value **argv
){
Stat4Accum *p = (Stat4Accum*)sqlite3_value_blob(argv[0]);
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
- /* STAT3 and STAT4 have a parameter on this routine. */
+#ifdef SQLITE_ENABLE_STAT4
+ /* STAT4 has a parameter on this routine. */
int eCall = sqlite3_value_int(argv[1]);
assert( argc==2 );
assert( eCall==STAT_GET_STAT1 || eCall==STAT_GET_NEQ
@@ -103635,7 +105707,7 @@ static void statGet(
sqlite3_result_text(context, zRet, -1, sqlite3_free);
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
else if( eCall==STAT_GET_ROWID ){
if( p->iGet<0 ){
samplePushPrevious(p, 0);
@@ -103664,9 +105736,7 @@ static void statGet(
}
}
- if( IsStat3 ){
- sqlite3_result_int64(context, (i64)aCnt[0]);
- }else{
+ {
char *zRet = sqlite3MallocZero(p->nCol * 25);
if( zRet==0 ){
sqlite3_result_error_nomem(context);
@@ -103683,13 +105753,13 @@ static void statGet(
}
}
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
#ifndef SQLITE_DEBUG
UNUSED_PARAMETER( argc );
#endif
}
static const FuncDef statGetFuncdef = {
- 1+IsStat34, /* nArg */
+ 1+IsStat4, /* nArg */
SQLITE_UTF8, /* funcFlags */
0, /* pUserData */
0, /* pNext */
@@ -103702,7 +105772,7 @@ static const FuncDef statGetFuncdef = {
static void callStatGet(Vdbe *v, int regStat4, int iParam, int regOut){
assert( regOut!=regStat4 && regOut!=regStat4+1 );
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
sqlite3VdbeAddOp2(v, OP_Integer, iParam, regStat4+1);
#elif SQLITE_DEBUG
assert( iParam==STAT_GET_STAT1 );
@@ -103711,7 +105781,7 @@ static void callStatGet(Vdbe *v, int regStat4, int iParam, int regOut){
#endif
sqlite3VdbeAddOp4(v, OP_Function0, 0, regStat4, regOut,
(char*)&statGetFuncdef, P4_FUNCDEF);
- sqlite3VdbeChangeP5(v, 1 + IsStat34);
+ sqlite3VdbeChangeP5(v, 1 + IsStat4);
}
/*
@@ -103738,7 +105808,7 @@ static void analyzeOneTable(
int regNewRowid = iMem++; /* Rowid for the inserted record */
int regStat4 = iMem++; /* Register to hold Stat4Accum object */
int regChng = iMem++; /* Index of changed index field */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
int regRowid = iMem++; /* Rowid argument passed to stat_push() */
#endif
int regTemp = iMem++; /* Temporary use register */
@@ -103872,16 +105942,16 @@ static void analyzeOneTable(
** (3) the number of rows in the index,
**
**
- ** The third argument is only used for STAT3 and STAT4
+ ** The third argument is only used for STAT4
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
sqlite3VdbeAddOp2(v, OP_Count, iIdxCur, regStat4+3);
#endif
sqlite3VdbeAddOp2(v, OP_Integer, nCol, regStat4+1);
sqlite3VdbeAddOp2(v, OP_Integer, pIdx->nKeyCol, regStat4+2);
sqlite3VdbeAddOp4(v, OP_Function0, 0, regStat4+1, regStat4,
(char*)&statInitFuncdef, P4_FUNCDEF);
- sqlite3VdbeChangeP5(v, 2+IsStat34);
+ sqlite3VdbeChangeP5(v, 2+IsStat4);
/* Implementation of the following:
**
@@ -103897,7 +105967,7 @@ static void analyzeOneTable(
addrNextRow = sqlite3VdbeCurrentAddr(v);
if( nColTest>0 ){
- int endDistinctTest = sqlite3VdbeMakeLabel(v);
+ int endDistinctTest = sqlite3VdbeMakeLabel(pParse);
int *aGotoChng; /* Array of jump instruction addresses */
aGotoChng = sqlite3DbMallocRawNN(db, sizeof(int)*nColTest);
if( aGotoChng==0 ) continue;
@@ -103952,12 +106022,12 @@ static void analyzeOneTable(
/*
** chng_addr_N:
- ** regRowid = idx(rowid) // STAT34 only
- ** stat_push(P, regChng, regRowid) // 3rd parameter STAT34 only
+ ** regRowid = idx(rowid) // STAT4 only
+ ** stat_push(P, regChng, regRowid) // 3rd parameter STAT4 only
** Next csr
** if !eof(csr) goto next_row;
*/
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
assert( regRowid==(regStat4+2) );
if( HasRowid(pTab) ){
sqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur, regRowid);
@@ -103978,7 +106048,7 @@ static void analyzeOneTable(
assert( regChng==(regStat4+1) );
sqlite3VdbeAddOp4(v, OP_Function0, 1, regStat4, regTemp,
(char*)&statPushFuncdef, P4_FUNCDEF);
- sqlite3VdbeChangeP5(v, 2+IsStat34);
+ sqlite3VdbeChangeP5(v, 2+IsStat4);
sqlite3VdbeAddOp2(v, OP_Next, iIdxCur, addrNextRow); VdbeCoverage(v);
/* Add the entry to the stat1 table. */
@@ -103992,8 +106062,8 @@ static void analyzeOneTable(
#endif
sqlite3VdbeChangeP5(v, OPFLAG_APPEND);
- /* Add the entries to the stat3 or stat4 table. */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+ /* Add the entries to the stat4 table. */
+#ifdef SQLITE_ENABLE_STAT4
{
int regEq = regStat1;
int regLt = regStat1+1;
@@ -104016,21 +106086,17 @@ static void analyzeOneTable(
callStatGet(v, regStat4, STAT_GET_NDLT, regDLt);
sqlite3VdbeAddOp4Int(v, seekOp, iTabCur, addrNext, regSampleRowid, 0);
VdbeCoverage(v);
-#ifdef SQLITE_ENABLE_STAT3
- sqlite3ExprCodeLoadIndexColumn(pParse, pIdx, iTabCur, 0, regSample);
-#else
for(i=0; ibUnordered = 1;
}else if( sqlite3_strglob("sz=[0-9]*", z)==0 ){
- pIndex->szIdxRow = sqlite3LogEst(sqlite3Atoi(z+3));
+ int sz = sqlite3Atoi(z+3);
+ if( sz<2 ) sz = 2;
+ pIndex->szIdxRow = sqlite3LogEst(sz);
}else if( sqlite3_strglob("noskipscan*", z)==0 ){
pIndex->noSkipScan = 1;
}
@@ -104292,7 +106360,7 @@ static int analysisLoader(void *pData, int argc, char **argv, char **NotUsed){
if( pIndex ){
tRowcnt *aiRowEst = 0;
int nCol = pIndex->nKeyCol+1;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/* Index.aiRowEst may already be set here if there are duplicate
** sqlite_stat1 entries for this index. In that case just clobber
** the old data with the new instead of allocating a new array. */
@@ -104328,7 +106396,7 @@ static int analysisLoader(void *pData, int argc, char **argv, char **NotUsed){
** and its contents.
*/
SQLITE_PRIVATE void sqlite3DeleteIndexSamples(sqlite3 *db, Index *pIdx){
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( pIdx->aSample ){
int j;
for(j=0; jnSample; j++){
@@ -104344,10 +106412,10 @@ SQLITE_PRIVATE void sqlite3DeleteIndexSamples(sqlite3 *db, Index *pIdx){
#else
UNUSED_PARAMETER(db);
UNUSED_PARAMETER(pIdx);
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Populate the pIdx->aAvgEq[] array based on the samples currently
** stored in pIdx->aSample[].
@@ -104425,12 +106493,11 @@ static Index *findIndexOrPrimaryKey(
}
/*
-** Load the content from either the sqlite_stat4 or sqlite_stat3 table
+** Load the content from either the sqlite_stat4
** into the relevant Index.aSample[] arrays.
**
** Arguments zSql1 and zSql2 must point to SQL statements that return
-** data equivalent to the following (statements are different for stat3,
-** see the caller of this function for details):
+** data equivalent to the following:
**
** zSql1: SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx
** zSql2: SELECT idx,neq,nlt,ndlt,sample FROM %Q.sqlite_stat4
@@ -104439,7 +106506,6 @@ static Index *findIndexOrPrimaryKey(
*/
static int loadStatTbl(
sqlite3 *db, /* Database handle */
- int bStat3, /* Assume single column records only */
const char *zSql1, /* SQL statement 1 (see above) */
const char *zSql2, /* SQL statement 2 (see above) */
const char *zDb /* Database name (e.g. "main") */
@@ -104473,17 +106539,13 @@ static int loadStatTbl(
if( zIndex==0 ) continue;
nSample = sqlite3_column_int(pStmt, 1);
pIdx = findIndexOrPrimaryKey(db, zIndex, zDb);
- assert( pIdx==0 || bStat3 || pIdx->nSample==0 );
- /* Index.nSample is non-zero at this point if data has already been
- ** loaded from the stat4 table. In this case ignore stat3 data. */
- if( pIdx==0 || pIdx->nSample ) continue;
- if( bStat3==0 ){
- assert( !HasRowid(pIdx->pTable) || pIdx->nColumn==pIdx->nKeyCol+1 );
- if( !HasRowid(pIdx->pTable) && IsPrimaryKeyIndex(pIdx) ){
- nIdxCol = pIdx->nKeyCol;
- }else{
- nIdxCol = pIdx->nColumn;
- }
+ assert( pIdx==0 || pIdx->nSample==0 );
+ if( pIdx==0 ) continue;
+ assert( !HasRowid(pIdx->pTable) || pIdx->nColumn==pIdx->nKeyCol+1 );
+ if( !HasRowid(pIdx->pTable) && IsPrimaryKeyIndex(pIdx) ){
+ nIdxCol = pIdx->nKeyCol;
+ }else{
+ nIdxCol = pIdx->nColumn;
}
pIdx->nSampleCol = nIdxCol;
nByte = sizeof(IndexSample) * nSample;
@@ -104525,9 +106587,8 @@ static int loadStatTbl(
pIdx = findIndexOrPrimaryKey(db, zIndex, zDb);
if( pIdx==0 ) continue;
/* This next condition is true if data has already been loaded from
- ** the sqlite_stat4 table. In this case ignore stat3 data. */
+ ** the sqlite_stat4 table. */
nCol = pIdx->nSampleCol;
- if( bStat3 && nCol>1 ) continue;
if( pIdx!=pPrevIdx ){
initAvgEq(pPrevIdx);
pPrevIdx = pIdx;
@@ -104560,7 +106621,7 @@ static int loadStatTbl(
}
/*
-** Load content from the sqlite_stat4 and sqlite_stat3 tables into
+** Load content from the sqlite_stat4 table into
** the Index.aSample[] arrays of all indices.
*/
static int loadStat4(sqlite3 *db, const char *zDb){
@@ -104568,37 +106629,28 @@ static int loadStat4(sqlite3 *db, const char *zDb){
assert( db->lookaside.bDisable );
if( sqlite3FindTable(db, "sqlite_stat4", zDb) ){
- rc = loadStatTbl(db, 0,
+ rc = loadStatTbl(db,
"SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx",
"SELECT idx,neq,nlt,ndlt,sample FROM %Q.sqlite_stat4",
zDb
);
}
-
- if( rc==SQLITE_OK && sqlite3FindTable(db, "sqlite_stat3", zDb) ){
- rc = loadStatTbl(db, 1,
- "SELECT idx,count(*) FROM %Q.sqlite_stat3 GROUP BY idx",
- "SELECT idx,neq,nlt,ndlt,sqlite_record(sample) FROM %Q.sqlite_stat3",
- zDb
- );
- }
-
return rc;
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
/*
-** Load the content of the sqlite_stat1 and sqlite_stat3/4 tables. The
+** Load the content of the sqlite_stat1 and sqlite_stat4 tables. The
** contents of sqlite_stat1 are used to populate the Index.aiRowEst[]
-** arrays. The contents of sqlite_stat3/4 are used to populate the
+** arrays. The contents of sqlite_stat4 are used to populate the
** Index.aSample[] arrays.
**
** If the sqlite_stat1 table is not present in the database, SQLITE_ERROR
-** is returned. In this case, even if SQLITE_ENABLE_STAT3/4 was defined
-** during compilation and the sqlite_stat3/4 table is present, no data is
+** is returned. In this case, even if SQLITE_ENABLE_STAT4 was defined
+** during compilation and the sqlite_stat4 table is present, no data is
** read from it.
**
-** If SQLITE_ENABLE_STAT3/4 was defined during compilation and the
+** If SQLITE_ENABLE_STAT4 was defined during compilation and the
** sqlite_stat4 table is not present in the database, SQLITE_ERROR is
** returned. However, in this case, data is read from the sqlite_stat1
** table (if it is present) before returning.
@@ -104626,7 +106678,7 @@ SQLITE_PRIVATE int sqlite3AnalysisLoad(sqlite3 *db, int iDb){
for(i=sqliteHashFirst(&pSchema->idxHash); i; i=sqliteHashNext(i)){
Index *pIdx = sqliteHashData(i);
pIdx->hasStat1 = 0;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
sqlite3DeleteIndexSamples(db, pIdx);
pIdx->aSample = 0;
#endif
@@ -104654,7 +106706,7 @@ SQLITE_PRIVATE int sqlite3AnalysisLoad(sqlite3 *db, int iDb){
}
/* Load the statistics from the sqlite_stat4 table. */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
if( rc==SQLITE_OK ){
db->lookaside.bDisable++;
rc = loadStat4(db, sInfo.zDatabase);
@@ -104780,7 +106832,7 @@ static void attachFunc(
if( pNew->pBt ) sqlite3BtreeClose(pNew->pBt);
pNew->pBt = 0;
pNew->pSchema = 0;
- rc = sqlite3BtreeOpen(pVfs, "x", db, &pNew->pBt, 0, SQLITE_OPEN_MAIN_DB);
+ rc = sqlite3BtreeOpen(pVfs, "x\0", db, &pNew->pBt, 0, SQLITE_OPEN_MAIN_DB);
}else{
/* This is a real ATTACH
**
@@ -104835,8 +106887,8 @@ static void attachFunc(
assert( pVfs );
flags |= SQLITE_OPEN_MAIN_DB;
rc = sqlite3BtreeOpen(pVfs, zPath, db, &pNew->pBt, 0, flags);
- sqlite3_free( zPath );
db->nDb++;
+ pNew->zDbSName = sqlite3DbStrDup(db, zName);
}
db->noSharedCache = 0;
if( rc==SQLITE_CONSTRAINT ){
@@ -104864,7 +106916,6 @@ static void attachFunc(
sqlite3BtreeLeave(pNew->pBt);
}
pNew->safety_level = SQLITE_DEFAULT_SYNCHRONOUS+1;
- if( !REOPEN_AS_MEMDB(db) ) pNew->zDbSName = sqlite3DbStrDup(db, zName);
if( rc==SQLITE_OK && pNew->zDbSName==0 ){
rc = SQLITE_NOMEM_BKPT;
}
@@ -104892,15 +106943,19 @@ static void attachFunc(
break;
case SQLITE_NULL:
- /* No key specified. Use the key from the main database */
- sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
- if( nKey || sqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){
- rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
+ /* No key specified. Use the key from URI filename, or if none,
+ ** use the key from the main database. */
+ if( sqlite3CodecQueryParameters(db, zName, zPath)==0 ){
+ sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
+ if( nKey || sqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){
+ rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
+ }
}
break;
}
}
#endif
+ sqlite3_free( zPath );
/* If the file was opened successfully, read the schema for the new database.
** If this fails, or if opening the file failed, then close the file and
@@ -104911,12 +106966,14 @@ static void attachFunc(
sqlite3BtreeEnterAll(db);
db->init.iDb = 0;
db->mDbFlags &= ~(DBFLAG_SchemaKnownOk);
- rc = sqlite3Init(db, &zErrDyn);
+ if( !REOPEN_AS_MEMDB(db) ){
+ rc = sqlite3Init(db, &zErrDyn);
+ }
sqlite3BtreeLeaveAll(db);
assert( zErrDyn==0 || rc!=SQLITE_OK );
}
#ifdef SQLITE_USER_AUTHENTICATION
- if( rc==SQLITE_OK ){
+ if( rc==SQLITE_OK && !REOPEN_AS_MEMDB(db) ){
u8 newAuth = 0;
rc = sqlite3UserAuthCheckLogin(db, zName, &newAuth);
if( newAuthauth.authLevel ){
@@ -104974,6 +107031,7 @@ static void detachFunc(
sqlite3 *db = sqlite3_context_db_handle(context);
int i;
Db *pDb = 0;
+ HashElem *pEntry;
char zErr[128];
UNUSED_PARAMETER(NotUsed);
@@ -104998,6 +107056,18 @@ static void detachFunc(
goto detach_error;
}
+ /* If any TEMP triggers reference the schema being detached, move those
+ ** triggers to reference the TEMP schema itself. */
+ assert( db->aDb[1].pSchema );
+ pEntry = sqliteHashFirst(&db->aDb[1].pSchema->trigHash);
+ while( pEntry ){
+ Trigger *pTrig = (Trigger*)sqliteHashData(pEntry);
+ if( pTrig->pTabSchema==pDb->pSchema ){
+ pTrig->pTabSchema = pTrig->pSchema;
+ }
+ pEntry = sqliteHashNext(pEntry);
+ }
+
sqlite3BtreeClose(pDb->pBt);
pDb->pBt = 0;
pDb->pSchema = 0;
@@ -105235,6 +107305,7 @@ SQLITE_PRIVATE int sqlite3FixExpr(
Expr *pExpr /* The expression to be fixed to one database */
){
while( pExpr ){
+ ExprSetProperty(pExpr, EP_Indirect);
if( pExpr->op==TK_VARIABLE ){
if( pFix->pParse->db->init.busy ){
pExpr->op = TK_NULL;
@@ -105387,7 +107458,7 @@ SQLITE_API int sqlite3_set_authorizer(
sqlite3_mutex_enter(db->mutex);
db->xAuth = (sqlite3_xauth)xAuth;
db->pAuthArg = pArg;
- sqlite3ExpirePreparedStatements(db, 0);
+ if( db->xAuth ) sqlite3ExpirePreparedStatements(db, 1);
sqlite3_mutex_leave(db->mutex);
return SQLITE_OK;
}
@@ -105460,6 +107531,7 @@ SQLITE_PRIVATE void sqlite3AuthRead(
int iCol; /* Index of column in table */
assert( pExpr->op==TK_COLUMN || pExpr->op==TK_TRIGGER );
+ assert( !IN_RENAME_OBJECT || db->xAuth==0 );
if( db->xAuth==0 ) return;
iDb = sqlite3SchemaToIndex(pParse->db, pSchema);
if( iDb<0 ){
@@ -105516,6 +107588,7 @@ SQLITE_PRIVATE int sqlite3AuthCheck(
/* Don't do any authorization checks if the database is initialising
** or if the parser is being invoked from within sqlite3_declare_vtab.
*/
+ assert( !IN_RENAME_OBJECT || db->xAuth==0 );
if( db->init.busy || IN_SPECIAL_PARSE ){
return SQLITE_OK;
}
@@ -105810,7 +107883,7 @@ SQLITE_PRIVATE void sqlite3FinishCoding(Parse *pParse){
if( v && pParse->nErr==0 && !db->mallocFailed ){
/* A minimum of one cursor is required if autoincrement is used
* See ticket [a696379c1f08866] */
- if( pParse->pAinc!=0 && pParse->nTab==0 ) pParse->nTab = 1;
+ assert( pParse->pAinc==0 || pParse->nTab>0 );
sqlite3VdbeMakeReady(v, pParse);
pParse->rc = SQLITE_DONE;
}else{
@@ -105843,7 +107916,12 @@ SQLITE_PRIVATE void sqlite3NestedParse(Parse *pParse, const char *zFormat, ...){
zSql = sqlite3VMPrintf(db, zFormat, ap);
va_end(ap);
if( zSql==0 ){
- return; /* A malloc must have failed */
+ /* This can result either from an OOM or because the formatted string
+ ** exceeds SQLITE_LIMIT_LENGTH. In the latter case, we need to set
+ ** an error */
+ if( !db->mallocFailed ) pParse->rc = SQLITE_TOOBIG;
+ pParse->nErr++;
+ return;
}
pParse->nested++;
memcpy(saveBuf, PARSE_TAIL(pParse), PARSE_TAIL_SZ);
@@ -105937,12 +108015,11 @@ SQLITE_PRIVATE Table *sqlite3LocateTable(
p = sqlite3FindTable(db, zName, zDbase);
if( p==0 ){
- const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
#ifndef SQLITE_OMIT_VIRTUALTABLE
- if( sqlite3FindDbName(db, zDbase)<1 ){
- /* If zName is the not the name of a table in the schema created using
- ** CREATE, then check to see if it is the name of an virtual table that
- ** can be an eponymous virtual table. */
+ /* If zName is the not the name of a table in the schema created using
+ ** CREATE, then check to see if it is the name of an virtual table that
+ ** can be an eponymous virtual table. */
+ if( pParse->disableVtab==0 ){
Module *pMod = (Module*)sqlite3HashFind(&db->aModule, zName);
if( pMod==0 && sqlite3_strnicmp(zName, "pragma_", 7)==0 ){
pMod = sqlite3PragmaVtabRegister(db, zName);
@@ -105952,13 +108029,18 @@ SQLITE_PRIVATE Table *sqlite3LocateTable(
}
}
#endif
- if( (flags & LOCATE_NOERR)==0 ){
- if( zDbase ){
- sqlite3ErrorMsg(pParse, "%s: %s.%s", zMsg, zDbase, zName);
- }else{
- sqlite3ErrorMsg(pParse, "%s: %s", zMsg, zName);
- }
- pParse->checkSchema = 1;
+ if( flags & LOCATE_NOERR ) return 0;
+ pParse->checkSchema = 1;
+ }else if( IsVirtual(p) && pParse->disableVtab ){
+ p = 0;
+ }
+
+ if( p==0 ){
+ const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
+ if( zDbase ){
+ sqlite3ErrorMsg(pParse, "%s: %s.%s", zMsg, zDbase, zName);
+ }else{
+ sqlite3ErrorMsg(pParse, "%s: %s", zMsg, zName);
}
}
@@ -106030,7 +108112,7 @@ SQLITE_PRIVATE void sqlite3FreeIndex(sqlite3 *db, Index *p){
sqlite3ExprListDelete(db, p->aColExpr);
sqlite3DbFree(db, p->zColAff);
if( p->isResized ) sqlite3DbFree(db, (void *)p->azColl);
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
sqlite3_free(p->aiRowEst);
#endif
sqlite3DbFree(db, p);
@@ -106129,17 +108211,22 @@ SQLITE_PRIVATE void sqlite3ResetOneSchema(sqlite3 *db, int iDb){
SQLITE_PRIVATE void sqlite3ResetAllSchemasOfConnection(sqlite3 *db){
int i;
sqlite3BtreeEnterAll(db);
- assert( db->nSchemaLock==0 );
for(i=0; inDb; i++){
Db *pDb = &db->aDb[i];
if( pDb->pSchema ){
- sqlite3SchemaClear(pDb->pSchema);
+ if( db->nSchemaLock==0 ){
+ sqlite3SchemaClear(pDb->pSchema);
+ }else{
+ DbSetProperty(db, i, DB_ResetWanted);
+ }
}
}
db->mDbFlags &= ~(DBFLAG_SchemaChange|DBFLAG_SchemaKnownOk);
sqlite3VtabUnlockList(db);
sqlite3BtreeLeaveAll(db);
- sqlite3CollapseDatabaseArray(db);
+ if( db->nSchemaLock==0 ){
+ sqlite3CollapseDatabaseArray(db);
+ }
}
/*
@@ -106187,10 +108274,14 @@ static void SQLITE_NOINLINE deleteTable(sqlite3 *db, Table *pTable){
#ifdef SQLITE_DEBUG
/* Record the number of outstanding lookaside allocations in schema Tables
- ** prior to doing any free() operations. Since schema Tables do not use
- ** lookaside, this number should not change. */
+ ** prior to doing any free() operations. Since schema Tables do not use
+ ** lookaside, this number should not change.
+ **
+ ** If malloc has already failed, it may be that it failed while allocating
+ ** a Table object that was going to be marked ephemeral. So do not check
+ ** that no lookaside memory is used in this case either. */
int nLookaside = 0;
- if( db && (pTable->tabFlags & TF_Ephemeral)==0 ){
+ if( db && !db->mallocFailed && (pTable->tabFlags & TF_Ephemeral)==0 ){
nLookaside = sqlite3LookasideUsed(db, 0);
}
#endif
@@ -106374,19 +108465,60 @@ SQLITE_PRIVATE int sqlite3TwoPartName(
return iDb;
}
+/*
+** True if PRAGMA writable_schema is ON
+*/
+SQLITE_PRIVATE int sqlite3WritableSchema(sqlite3 *db){
+ testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==0 );
+ testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
+ SQLITE_WriteSchema );
+ testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
+ SQLITE_Defensive );
+ testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
+ (SQLITE_WriteSchema|SQLITE_Defensive) );
+ return (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==SQLITE_WriteSchema;
+}
+
/*
** This routine is used to check if the UTF-8 string zName is a legal
** unqualified name for a new schema object (table, index, view or
** trigger). All names are legal except those that begin with the string
** "sqlite_" (in upper, lower or mixed case). This portion of the namespace
** is reserved for internal use.
+**
+** When parsing the sqlite_master table, this routine also checks to
+** make sure the "type", "name", and "tbl_name" columns are consistent
+** with the SQL.
*/
-SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *pParse, const char *zName){
- if( !pParse->db->init.busy && pParse->nested==0
- && (pParse->db->flags & SQLITE_WriteSchema)==0
- && 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
- sqlite3ErrorMsg(pParse, "object name reserved for internal use: %s", zName);
- return SQLITE_ERROR;
+SQLITE_PRIVATE int sqlite3CheckObjectName(
+ Parse *pParse, /* Parsing context */
+ const char *zName, /* Name of the object to check */
+ const char *zType, /* Type of this object */
+ const char *zTblName /* Parent table name for triggers and indexes */
+){
+ sqlite3 *db = pParse->db;
+ if( sqlite3WritableSchema(db) || db->init.imposterTable ){
+ /* Skip these error checks for writable_schema=ON */
+ return SQLITE_OK;
+ }
+ if( db->init.busy ){
+ if( sqlite3_stricmp(zType, db->init.azInit[0])
+ || sqlite3_stricmp(zName, db->init.azInit[1])
+ || sqlite3_stricmp(zTblName, db->init.azInit[2])
+ ){
+ if( sqlite3Config.bExtraSchemaChecks ){
+ sqlite3ErrorMsg(pParse, ""); /* corruptSchema() will supply the error */
+ return SQLITE_ERROR;
+ }
+ }
+ }else{
+ if( pParse->nested==0
+ && 0==sqlite3StrNICmp(zName, "sqlite_", 7)
+ ){
+ sqlite3ErrorMsg(pParse, "object name reserved for internal use: %s",
+ zName);
+ return SQLITE_ERROR;
+ }
}
return SQLITE_OK;
}
@@ -106467,7 +108599,7 @@ SQLITE_PRIVATE void sqlite3StartTable(
}
pParse->sNameToken = *pName;
if( zName==0 ) return;
- if( SQLITE_OK!=sqlite3CheckObjectName(pParse, zName) ){
+ if( sqlite3CheckObjectName(pParse, zName, isView?"view":"table", zName) ){
goto begin_table_error;
}
if( db->init.iDb==1 ) isTemp = 1;
@@ -106884,7 +109016,7 @@ SQLITE_PRIVATE void sqlite3AddDefaultValue(
** accept it. This routine does the necessary conversion. It converts
** the expression given in its argument from a TK_STRING into a TK_ID
** if the expression is just a TK_STRING with an optional COLLATE clause.
-** If the epxression is anything other than TK_STRING, the expression is
+** If the expression is anything other than TK_STRING, the expression is
** unchanged.
*/
static void sqlite3StringToId(Expr *p){
@@ -106960,13 +109092,14 @@ SQLITE_PRIVATE void sqlite3AddPrimaryKey(
&& sortOrder!=SQLITE_SO_DESC
){
if( IN_RENAME_OBJECT && pList ){
- sqlite3RenameTokenRemap(pParse, &pTab->iPKey, pList->a[0].pExpr);
+ Expr *pCExpr = sqlite3ExprSkipCollate(pList->a[0].pExpr);
+ sqlite3RenameTokenRemap(pParse, &pTab->iPKey, pCExpr);
}
pTab->iPKey = iCol;
pTab->keyConf = (u8)onError;
assert( autoInc==0 || autoInc==1 );
pTab->tabFlags |= autoInc*TF_Autoincrement;
- if( pList ) pParse->iPkSortOrder = pList->a[0].sortOrder;
+ if( pList ) pParse->iPkSortOrder = pList->a[0].sortFlags;
}else if( autoInc ){
#ifndef SQLITE_OMIT_AUTOINCREMENT
sqlite3ErrorMsg(pParse, "AUTOINCREMENT is only allowed on an "
@@ -107280,10 +109413,51 @@ static void estimateIndexWidth(Index *pIdx){
pIdx->szIdxRow = sqlite3LogEst(wIndex*4);
}
-/* Return true if value x is found any of the first nCol entries of aiCol[]
+/* Return true if column number x is any of the first nCol entries of aiCol[].
+** This is used to determine if the column number x appears in any of the
+** first nCol entries of an index.
*/
static int hasColumn(const i16 *aiCol, int nCol, int x){
- while( nCol-- > 0 ) if( x==*(aiCol++) ) return 1;
+ while( nCol-- > 0 ){
+ assert( aiCol[0]>=0 );
+ if( x==*(aiCol++) ){
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/*
+** Return true if any of the first nKey entries of index pIdx exactly
+** match the iCol-th entry of pPk. pPk is always a WITHOUT ROWID
+** PRIMARY KEY index. pIdx is an index on the same table. pIdx may
+** or may not be the same index as pPk.
+**
+** The first nKey entries of pIdx are guaranteed to be ordinary columns,
+** not a rowid or expression.
+**
+** This routine differs from hasColumn() in that both the column and the
+** collating sequence must match for this routine, but for hasColumn() only
+** the column name must match.
+*/
+static int isDupColumn(Index *pIdx, int nKey, Index *pPk, int iCol){
+ int i, j;
+ assert( nKey<=pIdx->nColumn );
+ assert( iColnColumn,pPk->nKeyCol) );
+ assert( pPk->idxType==SQLITE_IDXTYPE_PRIMARYKEY );
+ assert( pPk->pTable->tabFlags & TF_WithoutRowid );
+ assert( pPk->pTable==pIdx->pTable );
+ testcase( pPk==pIdx );
+ j = pPk->aiColumn[iCol];
+ assert( j!=XN_ROWID && j!=XN_EXPR );
+ for(i=0; iaiColumn[i]>=0 || j>=0 );
+ if( pIdx->aiColumn[i]==j
+ && sqlite3StrICmp(pIdx->azColl[i], pPk->azColl[iCol])==0
+ ){
+ return 1;
+ }
+ }
return 0;
}
@@ -107340,6 +109514,7 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
Index *pIdx;
Index *pPk;
int nPk;
+ int nExtra;
int i, j;
sqlite3 *db = pParse->db;
Vdbe *v = pParse->pVdbe;
@@ -107372,15 +109547,20 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
pList = sqlite3ExprListAppend(pParse, 0,
sqlite3ExprAlloc(db, TK_ID, &ipkToken, 0));
if( pList==0 ) return;
- pList->a[0].sortOrder = pParse->iPkSortOrder;
+ if( IN_RENAME_OBJECT ){
+ sqlite3RenameTokenRemap(pParse, pList->a[0].pExpr, &pTab->iPKey);
+ }
+ pList->a[0].sortFlags = pParse->iPkSortOrder;
assert( pParse->pNewTable==pTab );
+ pTab->iPKey = -1;
sqlite3CreateIndex(pParse, 0, 0, 0, pList, pTab->keyConf, 0, 0, 0, 0,
SQLITE_IDXTYPE_PRIMARYKEY);
if( db->mallocFailed || pParse->nErr ) return;
pPk = sqlite3PrimaryKeyIndex(pTab);
- pTab->iPKey = -1;
+ assert( pPk->nKeyCol==1 );
}else{
pPk = sqlite3PrimaryKeyIndex(pTab);
+ assert( pPk!=0 );
/*
** Remove all redundant columns from the PRIMARY KEY. For example, change
@@ -107388,9 +109568,12 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
** code assumes the PRIMARY KEY contains no repeated columns.
*/
for(i=j=1; inKeyCol; i++){
- if( hasColumn(pPk->aiColumn, j, pPk->aiColumn[i]) ){
+ if( isDupColumn(pPk, j, pPk, i) ){
pPk->nColumn--;
}else{
+ testcase( hasColumn(pPk->aiColumn, j, pPk->aiColumn[i]) );
+ pPk->azColl[j] = pPk->azColl[i];
+ pPk->aSortOrder[j] = pPk->aSortOrder[i];
pPk->aiColumn[j++] = pPk->aiColumn[i];
}
}
@@ -107399,7 +109582,7 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
assert( pPk!=0 );
pPk->isCovering = 1;
if( !db->init.imposterTable ) pPk->uniqNotNull = 1;
- nPk = pPk->nKeyCol;
+ nPk = pPk->nColumn = pPk->nKeyCol;
/* Bypass the creation of the PRIMARY KEY btree and the sqlite_master
** table entry. This is only required if currently generating VDBE
@@ -107420,7 +109603,10 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
int n;
if( IsPrimaryKeyIndex(pIdx) ) continue;
for(i=n=0; iaiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) ) n++;
+ if( !isDupColumn(pIdx, pIdx->nKeyCol, pPk, i) ){
+ testcase( hasColumn(pIdx->aiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) );
+ n++;
+ }
}
if( n==0 ){
/* This index is a superset of the primary key */
@@ -107429,9 +109615,14 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
}
if( resizeIndexObject(db, pIdx, pIdx->nKeyCol+n) ) return;
for(i=0, j=pIdx->nKeyCol; iaiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) ){
+ if( !isDupColumn(pIdx, pIdx->nKeyCol, pPk, i) ){
+ testcase( hasColumn(pIdx->aiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) );
pIdx->aiColumn[j] = pPk->aiColumn[i];
pIdx->azColl[j] = pPk->azColl[i];
+ if( pPk->aSortOrder[i] ){
+ /* See ticket https://www.sqlite.org/src/info/bba7b69f9849b5bf */
+ pIdx->bAscKeyBug = 1;
+ }
j++;
}
}
@@ -107441,24 +109632,54 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
/* Add all table columns to the PRIMARY KEY index
*/
- if( nPknCol ){
- if( resizeIndexObject(db, pPk, pTab->nCol) ) return;
- for(i=0, j=nPk; inCol; i++){
- if( !hasColumn(pPk->aiColumn, j, i) ){
- assert( jnColumn );
- pPk->aiColumn[j] = i;
- pPk->azColl[j] = sqlite3StrBINARY;
- j++;
- }
- }
- assert( pPk->nColumn==j );
- assert( pTab->nCol==j );
- }else{
- pPk->nColumn = pTab->nCol;
+ nExtra = 0;
+ for(i=0; inCol; i++){
+ if( !hasColumn(pPk->aiColumn, nPk, i) ) nExtra++;
}
+ if( resizeIndexObject(db, pPk, nPk+nExtra) ) return;
+ for(i=0, j=nPk; inCol; i++){
+ if( !hasColumn(pPk->aiColumn, j, i) ){
+ assert( jnColumn );
+ pPk->aiColumn[j] = i;
+ pPk->azColl[j] = sqlite3StrBINARY;
+ j++;
+ }
+ }
+ assert( pPk->nColumn==j );
+ assert( pTab->nCol<=j );
recomputeColumnsNotIndexed(pPk);
}
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+/*
+** Return true if zName is a shadow table name in the current database
+** connection.
+**
+** zName is temporarily modified while this routine is running, but is
+** restored to its original value prior to this routine returning.
+*/
+static int isShadowTableName(sqlite3 *db, char *zName){
+ char *zTail; /* Pointer to the last "_" in zName */
+ Table *pTab; /* Table that zName is a shadow of */
+ Module *pMod; /* Module for the virtual table */
+
+ zTail = strrchr(zName, '_');
+ if( zTail==0 ) return 0;
+ *zTail = 0;
+ pTab = sqlite3FindTable(db, zName, 0);
+ *zTail = '_';
+ if( pTab==0 ) return 0;
+ if( !IsVirtual(pTab) ) return 0;
+ pMod = (Module*)sqlite3HashFind(&db->aModule, pTab->azModuleArg[0]);
+ if( pMod==0 ) return 0;
+ if( pMod->pModule->iVersion<3 ) return 0;
+ if( pMod->pModule->xShadowName==0 ) return 0;
+ return pMod->pModule->xShadowName(zTail+1);
+}
+#else
+# define isShadowTableName(x,y) 0
+#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
+
/*
** This routine is called to report the final ")" that terminates
** a CREATE TABLE statement.
@@ -107498,6 +109719,10 @@ SQLITE_PRIVATE void sqlite3EndTable(
p = pParse->pNewTable;
if( p==0 ) return;
+ if( pSelect==0 && isShadowTableName(db, p->zName) ){
+ p->tabFlags |= TF_Shadow;
+ }
+
/* If the db->init.busy is 1 it means we are reading the SQL off the
** "sqlite_master" or "sqlite_temp_master" table on the disk.
** So do not write to the disk again. Extract the root page number
@@ -107516,6 +109741,11 @@ SQLITE_PRIVATE void sqlite3EndTable(
if( p->tnum==1 ) p->tabFlags |= TF_Readonly;
}
+ assert( (p->tabFlags & TF_HasPrimaryKey)==0
+ || p->iPKey>=0 || sqlite3PrimaryKeyIndex(p)!=0 );
+ assert( (p->tabFlags & TF_HasPrimaryKey)!=0
+ || (p->iPKey<0 && sqlite3PrimaryKeyIndex(p)==0) );
+
/* Special processing for WITHOUT ROWID Tables */
if( tabOpts & TF_WithoutRowid ){
if( (p->tabFlags & TF_Autoincrement) ){
@@ -107613,7 +109843,7 @@ SQLITE_PRIVATE void sqlite3EndTable(
addrTop = sqlite3VdbeCurrentAddr(v) + 1;
sqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, addrTop);
if( pParse->nErr ) return;
- pSelTab = sqlite3ResultSetOfSelect(pParse, pSelect);
+ pSelTab = sqlite3ResultSetOfSelect(pParse, pSelect, SQLITE_AFF_BLOB);
if( pSelTab==0 ) return;
assert( p->aCol==0 );
p->nCol = pSelTab->nCol;
@@ -107877,10 +110107,10 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){
#ifndef SQLITE_OMIT_AUTHORIZATION
xAuth = db->xAuth;
db->xAuth = 0;
- pSelTab = sqlite3ResultSetOfSelect(pParse, pSel);
+ pSelTab = sqlite3ResultSetOfSelect(pParse, pSel, SQLITE_AFF_NONE);
db->xAuth = xAuth;
#else
- pSelTab = sqlite3ResultSetOfSelect(pParse, pSel);
+ pSelTab = sqlite3ResultSetOfSelect(pParse, pSel, SQLITE_AFF_NONE);
#endif
pParse->nTab = n;
if( pTable->pCheck ){
@@ -107896,7 +110126,8 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){
&& pParse->nErr==0
&& pTable->nCol==pSel->pEList->nExpr
){
- sqlite3SelectAddColumnTypeAndCollation(pParse, pTable, pSel);
+ sqlite3SelectAddColumnTypeAndCollation(pParse, pTable, pSel,
+ SQLITE_AFF_NONE);
}
}else if( pSelTab ){
/* CREATE VIEW name AS... without an argument list. Construct
@@ -108005,7 +110236,7 @@ SQLITE_PRIVATE void sqlite3RootPageMoved(sqlite3 *db, int iDb, int iFrom, int iT
static void destroyRootPage(Parse *pParse, int iTable, int iDb){
Vdbe *v = sqlite3GetVdbe(pParse);
int r1 = sqlite3GetTempReg(pParse);
- assert( iTable>1 );
+ if( iTable<2 ) sqlite3ErrorMsg(pParse, "corrupt schema");
sqlite3VdbeAddOp3(v, OP_Destroy, iTable, r1, iDb);
sqlite3MayAbort(pParse);
#ifndef SQLITE_OMIT_AUTOVACUUM
@@ -108164,6 +110395,7 @@ SQLITE_PRIVATE void sqlite3CodeDropTable(Parse *pParse, Table *pTab, int iDb, in
*/
if( IsVirtual(pTab) ){
sqlite3VdbeAddOp4(v, OP_VDestroy, iDb, 0, 0, pTab->zName, 0);
+ sqlite3MayAbort(pParse);
}
sqlite3VdbeAddOp4(v, OP_DropTable, iDb, 0, 0, pTab->zName, 0);
sqlite3ChangeCookie(pParse, iDb);
@@ -108240,7 +110472,8 @@ SQLITE_PRIVATE void sqlite3DropTable(Parse *pParse, SrcList *pName, int isView,
}
#endif
if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0
- && sqlite3StrNICmp(pTab->zName, "sqlite_stat", 11)!=0 ){
+ && sqlite3StrNICmp(pTab->zName+7, "stat", 4)!=0
+ && sqlite3StrNICmp(pTab->zName+7, "parameters", 10)!=0 ){
sqlite3ErrorMsg(pParse, "table %s may not be dropped", pTab->zName);
goto exit_drop_table;
}
@@ -108510,10 +110743,27 @@ static void sqlite3RefillIndex(Parse *pParse, Index *pIndex, int memRootPage){
sqlite3UniqueConstraint(pParse, OE_Abort, pIndex);
sqlite3VdbeJumpHere(v, j2);
}else{
+ /* Most CREATE INDEX and REINDEX statements that are not UNIQUE can not
+ ** abort. The exception is if one of the indexed expressions contains a
+ ** user function that throws an exception when it is evaluated. But the
+ ** overhead of adding a statement journal to a CREATE INDEX statement is
+ ** very small (since most of the pages written do not contain content that
+ ** needs to be restored if the statement aborts), so we call
+ ** sqlite3MayAbort() for all CREATE INDEX statements. */
+ sqlite3MayAbort(pParse);
addr2 = sqlite3VdbeCurrentAddr(v);
}
sqlite3VdbeAddOp3(v, OP_SorterData, iSorter, regRecord, iIdx);
- sqlite3VdbeAddOp1(v, OP_SeekEnd, iIdx);
+ if( !pIndex->bAscKeyBug ){
+ /* This OP_SeekEnd opcode makes index insert for a REINDEX go much
+ ** faster by avoiding unnecessary seeks. But the optimization does
+ ** not work for UNIQUE constraint indexes on WITHOUT ROWID tables
+ ** with DESC primary keys, since those indexes have there keys in
+ ** a different order from the main table.
+ ** See ticket: https://www.sqlite.org/src/info/bba7b69f9849b5bf
+ */
+ sqlite3VdbeAddOp1(v, OP_SeekEnd, iIdx);
+ }
sqlite3VdbeAddOp2(v, OP_IdxInsert, iIdx, regRecord);
sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
sqlite3ReleaseTempReg(pParse, regRecord);
@@ -108560,6 +110810,27 @@ SQLITE_PRIVATE Index *sqlite3AllocateIndexObject(
return p;
}
+/*
+** If expression list pList contains an expression that was parsed with
+** an explicit "NULLS FIRST" or "NULLS LAST" clause, leave an error in
+** pParse and return non-zero. Otherwise, return zero.
+*/
+SQLITE_PRIVATE int sqlite3HasExplicitNulls(Parse *pParse, ExprList *pList){
+ if( pList ){
+ int i;
+ for(i=0; inExpr; i++){
+ if( pList->a[i].bNulls ){
+ u8 sf = pList->a[i].sortFlags;
+ sqlite3ErrorMsg(pParse, "unsupported use of NULLS %s",
+ (sf==0 || sf==3) ? "FIRST" : "LAST"
+ );
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
/*
** Create a new index for an SQL table. pName1.pName2 is the name of the index
** and pTblList is the name of the table that is to be indexed. Both will
@@ -108611,6 +110882,9 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
if( SQLITE_OK!=sqlite3ReadSchema(pParse) ){
goto exit_create_index;
}
+ if( sqlite3HasExplicitNulls(pParse, pList) ){
+ goto exit_create_index;
+ }
/*
** Find the table that is to be indexed. Return early if not found.
@@ -108668,13 +110942,13 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
assert( pParse->nErr==0 );
if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0
&& db->init.busy==0
+ && pTblName!=0
#if SQLITE_USER_AUTHENTICATION
&& sqlite3UserAuthTable(pTab->zName)==0
#endif
#ifdef SQLITE_ALLOW_SQLITE_MASTER_INDEX
&& sqlite3StrICmp(&pTab->zName[7],"master")!=0
#endif
- && sqlite3StrNICmp(&pTab->zName[7],"altertab_",9)!=0
){
sqlite3ErrorMsg(pParse, "table %s may not be indexed", pTab->zName);
goto exit_create_index;
@@ -108709,7 +110983,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
zName = sqlite3NameFromToken(db, pName);
if( zName==0 ) goto exit_create_index;
assert( pName->z!=0 );
- if( SQLITE_OK!=sqlite3CheckObjectName(pParse, zName) ){
+ if( SQLITE_OK!=sqlite3CheckObjectName(pParse, zName,"index",pTab->zName) ){
goto exit_create_index;
}
if( !IN_RENAME_OBJECT ){
@@ -108775,9 +111049,10 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
sqlite3ExprAlloc(db, TK_ID, &prevCol, 0));
if( pList==0 ) goto exit_create_index;
assert( pList->nExpr==1 );
- sqlite3ExprListSetSortOrder(pList, sortOrder);
+ sqlite3ExprListSetSortOrder(pList, sortOrder, SQLITE_SO_UNDEFINED);
}else{
sqlite3ExprListCheckLength(pParse, pList, "index");
+ if( pParse->nErr ) goto exit_create_index;
}
/* Figure out how many bytes of space are required to store explicitly
@@ -108796,6 +111071,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
*/
nName = sqlite3Strlen30(zName);
nExtraCol = pPk ? pPk->nKeyCol : 1;
+ assert( pList->nExpr + nExtraCol <= 32767 /* Fits in i16 */ );
pIndex = sqlite3AllocateIndexObject(db, pList->nExpr + nExtraCol,
nName + nExtra + 1, &zExtra);
if( db->mallocFailed ){
@@ -108891,7 +111167,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
goto exit_create_index;
}
pIndex->azColl[i] = zColl;
- requestedSortOrder = pListItem->sortOrder & sortOrderMask;
+ requestedSortOrder = pListItem->sortFlags & sortOrderMask;
pIndex->aSortOrder[i] = (u8)requestedSortOrder;
}
@@ -108903,9 +111179,10 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
for(j=0; jnKeyCol; j++){
int x = pPk->aiColumn[j];
assert( x>=0 );
- if( hasColumn(pIndex->aiColumn, pIndex->nKeyCol, x) ){
+ if( isDupColumn(pIndex, pIndex->nKeyCol, pPk, j) ){
pIndex->nColumn--;
}else{
+ testcase( hasColumn(pIndex->aiColumn,pIndex->nKeyCol,x) );
pIndex->aiColumn[i] = x;
pIndex->azColl[i] = pPk->azColl[j];
pIndex->aSortOrder[i] = pPk->aSortOrder[j];
@@ -108992,6 +111269,11 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
}
}
if( idxType==SQLITE_IDXTYPE_PRIMARYKEY ) pIdx->idxType = idxType;
+ if( IN_RENAME_OBJECT ){
+ pIndex->pNext = pParse->pNewIndex;
+ pParse->pNewIndex = pIndex;
+ pIndex = 0;
+ }
goto exit_create_index;
}
}
@@ -109007,6 +111289,14 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
Index *p;
assert( !IN_SPECIAL_PARSE );
assert( sqlite3SchemaMutexHeld(db, 0, pIndex->pSchema) );
+ if( pTblName!=0 ){
+ pIndex->tnum = db->init.newTnum;
+ if( sqlite3IndexHasDuplicateRootPage(pIndex) ){
+ sqlite3ErrorMsg(pParse, "invalid rootpage");
+ pParse->rc = SQLITE_CORRUPT_BKPT;
+ goto exit_create_index;
+ }
+ }
p = sqlite3HashInsert(&pIndex->pSchema->idxHash,
pIndex->zName, pIndex);
if( p ){
@@ -109015,9 +111305,6 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
goto exit_create_index;
}
db->mDbFlags |= DBFLAG_SchemaChange;
- if( pTblName!=0 ){
- pIndex->tnum = db->init.newTnum;
- }
}
/* If this is the initial CREATE INDEX statement (or CREATE TABLE if the
@@ -109055,6 +111342,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex(
/* Gather the complete text of the CREATE INDEX statement into
** the zStmt variable
*/
+ assert( pName!=0 || pStart==0 );
if( pStart ){
int n = (int)(pParse->sLastToken.z - pName->z) + pParse->sLastToken.n;
if( pName->z[n-1]==';' ) n--;
@@ -109269,9 +111557,9 @@ SQLITE_PRIVATE void *sqlite3ArrayAllocate(
int *pIdx /* Write the index of a new slot here */
){
char *z;
- int n = *pnEntry;
+ sqlite3_int64 n = *pIdx = *pnEntry;
if( (n & (n-1))==0 ){
- int sz = (n==0) ? 1 : 2*n;
+ sqlite3_int64 sz = (n==0) ? 1 : 2*n;
void *pNew = sqlite3DbRealloc(db, pArray, sz*szEntry);
if( pNew==0 ){
*pIdx = -1;
@@ -109281,7 +111569,6 @@ SQLITE_PRIVATE void *sqlite3ArrayAllocate(
}
z = (char*)pArray;
memset(&z[n * szEntry], 0, szEntry);
- *pIdx = n;
++*pnEntry;
return pArray;
}
@@ -109343,6 +111630,18 @@ SQLITE_PRIVATE int sqlite3IdListIndex(IdList *pList, const char *zName){
return -1;
}
+/*
+** Maximum size of a SrcList object.
+** The SrcList object is used to represent the FROM clause of a
+** SELECT statement, and the query planner cannot deal with more
+** than 64 tables in a join. So any value larger than 64 here
+** is sufficient for most uses. Smaller values, like say 10, are
+** appropriate for small and memory-limited applications.
+*/
+#ifndef SQLITE_MAX_SRCLIST
+# define SQLITE_MAX_SRCLIST 200
+#endif
+
/*
** Expand the space allocated for the given SrcList object by
** creating nExtra new slots beginning at iStart. iStart is zero based.
@@ -109359,11 +111658,12 @@ SQLITE_PRIVATE int sqlite3IdListIndex(IdList *pList, const char *zName){
** the iStart value would be 0. The result then would
** be: nil, nil, nil, A, B.
**
-** If a memory allocation fails the SrcList is unchanged. The
-** db->mallocFailed flag will be set to true.
+** If a memory allocation fails or the SrcList becomes too large, leave
+** the original SrcList unchanged, return NULL, and leave an error message
+** in pParse.
*/
SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(
- sqlite3 *db, /* Database connection to notify of OOM errors */
+ Parse *pParse, /* Parsing context into which errors are reported */
SrcList *pSrc, /* The SrcList to be enlarged */
int nExtra, /* Number of new slots to add to pSrc->a[] */
int iStart /* Index in pSrc->a[] of first new slot */
@@ -109379,17 +111679,23 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(
/* Allocate additional space if needed */
if( (u32)pSrc->nSrc+nExtra>pSrc->nAlloc ){
SrcList *pNew;
- int nAlloc = pSrc->nSrc*2+nExtra;
- int nGot;
+ sqlite3_int64 nAlloc = 2*(sqlite3_int64)pSrc->nSrc+nExtra;
+ sqlite3 *db = pParse->db;
+
+ if( pSrc->nSrc+nExtra>=SQLITE_MAX_SRCLIST ){
+ sqlite3ErrorMsg(pParse, "too many FROM clause terms, max: %d",
+ SQLITE_MAX_SRCLIST);
+ return 0;
+ }
+ if( nAlloc>SQLITE_MAX_SRCLIST ) nAlloc = SQLITE_MAX_SRCLIST;
pNew = sqlite3DbRealloc(db, pSrc,
sizeof(*pSrc) + (nAlloc-1)*sizeof(pSrc->a[0]) );
if( pNew==0 ){
assert( db->mallocFailed );
- return pSrc;
+ return 0;
}
pSrc = pNew;
- nGot = (sqlite3DbMallocSize(db, pNew) - sizeof(*pSrc))/sizeof(pSrc->a[0])+1;
- pSrc->nAlloc = nGot;
+ pSrc->nAlloc = nAlloc;
}
/* Move existing slots that come after the newly inserted slots
@@ -109414,7 +111720,8 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(
** Append a new table name to the given SrcList. Create a new SrcList if
** need be. A new entry is created in the SrcList even if pTable is NULL.
**
-** A SrcList is returned, or NULL if there is an OOM error. The returned
+** A SrcList is returned, or NULL if there is an OOM error or if the
+** SrcList grows to large. The returned
** SrcList might be the same as the SrcList that was input or it might be
** a new one. If an OOM error does occurs, then the prior value of pList
** that is input to this routine is automatically freed.
@@ -109445,27 +111752,32 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(
** before being added to the SrcList.
*/
SQLITE_PRIVATE SrcList *sqlite3SrcListAppend(
- sqlite3 *db, /* Connection to notify of malloc failures */
+ Parse *pParse, /* Parsing context, in which errors are reported */
SrcList *pList, /* Append to this SrcList. NULL creates a new SrcList */
Token *pTable, /* Table to append */
Token *pDatabase /* Database of the table */
){
struct SrcList_item *pItem;
+ sqlite3 *db;
assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */
- assert( db!=0 );
+ assert( pParse!=0 );
+ assert( pParse->db!=0 );
+ db = pParse->db;
if( pList==0 ){
- pList = sqlite3DbMallocRawNN(db, sizeof(SrcList) );
+ pList = sqlite3DbMallocRawNN(pParse->db, sizeof(SrcList) );
if( pList==0 ) return 0;
pList->nAlloc = 1;
pList->nSrc = 1;
memset(&pList->a[0], 0, sizeof(pList->a[0]));
pList->a[0].iCursor = -1;
}else{
- pList = sqlite3SrcListEnlarge(db, pList, 1, pList->nSrc);
- }
- if( db->mallocFailed ){
- sqlite3SrcListDelete(db, pList);
- return 0;
+ SrcList *pNew = sqlite3SrcListEnlarge(pParse, pList, 1, pList->nSrc);
+ if( pNew==0 ){
+ sqlite3SrcListDelete(db, pList);
+ return 0;
+ }else{
+ pList = pNew;
+ }
}
pItem = &pList->a[pList->nSrc-1];
if( pDatabase && pDatabase->z==0 ){
@@ -109554,7 +111866,7 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListAppendFromTerm(
);
goto append_from_error;
}
- p = sqlite3SrcListAppend(db, p, pTable, pDatabase);
+ p = sqlite3SrcListAppend(pParse, p, pTable, pDatabase);
if( p==0 ){
goto append_from_error;
}
@@ -109874,7 +112186,8 @@ SQLITE_PRIVATE void sqlite3UniqueConstraint(
StrAccum errMsg;
Table *pTab = pIdx->pTable;
- sqlite3StrAccumInit(&errMsg, pParse->db, 0, 0, 200);
+ sqlite3StrAccumInit(&errMsg, pParse->db, 0, 0,
+ pParse->db->aLimit[SQLITE_LIMIT_LENGTH]);
if( pIdx->aColExpr ){
sqlite3_str_appendf(&errMsg, "index '%q'", pIdx->zName);
}else{
@@ -109943,13 +112256,15 @@ static int collationMatch(const char *zColl, Index *pIndex){
*/
#ifndef SQLITE_OMIT_REINDEX
static void reindexTable(Parse *pParse, Table *pTab, char const *zColl){
- Index *pIndex; /* An index associated with pTab */
+ if( !IsVirtual(pTab) ){
+ Index *pIndex; /* An index associated with pTab */
- for(pIndex=pTab->pIndex; pIndex; pIndex=pIndex->pNext){
- if( zColl==0 || collationMatch(zColl, pIndex) ){
- int iDb = sqlite3SchemaToIndex(pParse->db, pTab->pSchema);
- sqlite3BeginWriteOperation(pParse, 0, iDb);
- sqlite3RefillIndex(pParse, pIndex, -1);
+ for(pIndex=pTab->pIndex; pIndex; pIndex=pIndex->pNext){
+ if( zColl==0 || collationMatch(zColl, pIndex) ){
+ int iDb = sqlite3SchemaToIndex(pParse->db, pTab->pSchema);
+ sqlite3BeginWriteOperation(pParse, 0, iDb);
+ sqlite3RefillIndex(pParse, pIndex, -1);
+ }
}
}
}
@@ -110070,7 +112385,8 @@ SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoOfIndex(Parse *pParse, Index *pIdx){
const char *zColl = pIdx->azColl[i];
pKey->aColl[i] = zColl==sqlite3StrBINARY ? 0 :
sqlite3LocateCollSeq(pParse, zColl);
- pKey->aSortOrder[i] = pIdx->aSortOrder[i];
+ pKey->aSortFlags[i] = pIdx->aSortOrder[i];
+ assert( 0==(pKey->aSortFlags[i] & KEYINFO_ORDER_BIGNULL) );
}
if( pParse->nErr ){
assert( pParse->rc==SQLITE_ERROR_MISSING_COLLSEQ );
@@ -110121,7 +112437,7 @@ SQLITE_PRIVATE With *sqlite3WithAdd(
}
if( pWith ){
- int nByte = sizeof(*pWith) + (sizeof(pWith->a[1]) * pWith->nCte);
+ sqlite3_int64 nByte = sizeof(*pWith) + (sizeof(pWith->a[1]) * pWith->nCte);
pNew = sqlite3DbRealloc(db, pWith, nByte);
}else{
pNew = sqlite3DbMallocZero(db, sizeof(*pWith));
@@ -110448,7 +112764,7 @@ static int matchQuality(
** Search a FuncDefHash for a function with the given name. Return
** a pointer to the matching FuncDef if found, or 0 if there is no match.
*/
-static FuncDef *functionSearch(
+SQLITE_PRIVATE FuncDef *sqlite3FunctionSearch(
int h, /* Hash of the name */
const char *zFunc /* Name of function */
){
@@ -110473,9 +112789,9 @@ SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(
FuncDef *pOther;
const char *zName = aDef[i].zName;
int nName = sqlite3Strlen30(zName);
- int h = (zName[0] + nName) % SQLITE_FUNC_HASH_SZ;
+ int h = SQLITE_FUNC_HASH(zName[0], nName);
assert( zName[0]>='a' && zName[0]<='z' );
- pOther = functionSearch(h, zName);
+ pOther = sqlite3FunctionSearch(h, zName);
if( pOther ){
assert( pOther!=&aDef[i] && pOther->pNext!=&aDef[i] );
aDef[i].pNext = pOther->pNext;
@@ -110552,8 +112868,8 @@ SQLITE_PRIVATE FuncDef *sqlite3FindFunction(
*/
if( !createFlag && (pBest==0 || (db->mDbFlags & DBFLAG_PreferBuiltin)!=0) ){
bestScore = 0;
- h = (sqlite3UpperToLower[(u8)zName[0]] + nName) % SQLITE_FUNC_HASH_SZ;
- p = functionSearch(h, zName);
+ h = SQLITE_FUNC_HASH(sqlite3UpperToLower[(u8)zName[0]], nName);
+ p = sqlite3FunctionSearch(h, zName);
while( p ){
int score = matchQuality(p, nArg, enc);
if( score>bestScore ){
@@ -110700,32 +113016,49 @@ SQLITE_PRIVATE Table *sqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){
return pTab;
}
+/* Return true if table pTab is read-only.
+**
+** A table is read-only if any of the following are true:
+**
+** 1) It is a virtual table and no implementation of the xUpdate method
+** has been provided
+**
+** 2) It is a system table (i.e. sqlite_master), this call is not
+** part of a nested parse and writable_schema pragma has not
+** been specified
+**
+** 3) The table is a shadow table, the database connection is in
+** defensive mode, and the current sqlite3_prepare()
+** is for a top-level SQL statement.
+*/
+static int tabIsReadOnly(Parse *pParse, Table *pTab){
+ sqlite3 *db;
+ if( IsVirtual(pTab) ){
+ return sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0;
+ }
+ if( (pTab->tabFlags & (TF_Readonly|TF_Shadow))==0 ) return 0;
+ db = pParse->db;
+ if( (pTab->tabFlags & TF_Readonly)!=0 ){
+ return sqlite3WritableSchema(db)==0 && pParse->nested==0;
+ }
+ assert( pTab->tabFlags & TF_Shadow );
+ return (db->flags & SQLITE_Defensive)!=0
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+ && db->pVtabCtx==0
+#endif
+ && db->nVdbeExec==0;
+}
+
/*
** Check to make sure the given table is writable. If it is not
** writable, generate an error message and return 1. If it is
** writable return 0;
*/
SQLITE_PRIVATE int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
- /* A table is not writable under the following circumstances:
- **
- ** 1) It is a virtual table and no implementation of the xUpdate method
- ** has been provided, or
- ** 2) It is a system table (i.e. sqlite_master), this call is not
- ** part of a nested parse and writable_schema pragma has not
- ** been specified.
- **
- ** In either case leave an error message in pParse and return non-zero.
- */
- if( ( IsVirtual(pTab)
- && sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 )
- || ( (pTab->tabFlags & TF_Readonly)!=0
- && (pParse->db->flags & SQLITE_WriteSchema)==0
- && pParse->nested==0 )
- ){
+ if( tabIsReadOnly(pParse, pTab) ){
sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
return 1;
}
-
#ifndef SQLITE_OMIT_VIEW
if( !viewOk && pTab->pSelect ){
sqlite3ErrorMsg(pParse,"cannot modify %s because it is a view",pTab->zName);
@@ -110756,7 +113089,7 @@ SQLITE_PRIVATE void sqlite3MaterializeView(
sqlite3 *db = pParse->db;
int iDb = sqlite3SchemaToIndex(db, pView->pSchema);
pWhere = sqlite3ExprDup(db, pWhere, 0);
- pFrom = sqlite3SrcListAppend(db, 0, 0, 0);
+ pFrom = sqlite3SrcListAppend(pParse, 0, 0, 0);
if( pFrom ){
assert( pFrom->nSrc==1 );
pFrom->a[0].zName = sqlite3DbStrDup(db, pView->zName);
@@ -111156,7 +113489,7 @@ SQLITE_PRIVATE void sqlite3DeleteFrom(
/* If this DELETE cannot use the ONEPASS strategy, this is the
** end of the WHERE loop */
if( eOnePass!=ONEPASS_OFF ){
- addrBypass = sqlite3VdbeMakeLabel(v);
+ addrBypass = sqlite3VdbeMakeLabel(pParse);
}else{
sqlite3WhereEnd(pWInfo);
}
@@ -111345,7 +113678,7 @@ SQLITE_PRIVATE void sqlite3GenerateRowDelete(
/* Seek cursor iCur to the row to delete. If this row no longer exists
** (this can happen if a trigger program has already deleted it), do
** not attempt to delete it or fire any DELETE triggers. */
- iLabel = sqlite3VdbeMakeLabel(v);
+ iLabel = sqlite3VdbeMakeLabel(pParse);
opSeek = HasRowid(pTab) ? OP_NotExists : OP_NotFound;
if( eMode==ONEPASS_OFF ){
sqlite3VdbeAddOp4Int(v, opSeek, iDataCur, iLabel, iPk, nPk);
@@ -111551,7 +113884,7 @@ SQLITE_PRIVATE int sqlite3GenerateIndexKey(
if( piPartIdxLabel ){
if( pIdx->pPartIdxWhere ){
- *piPartIdxLabel = sqlite3VdbeMakeLabel(v);
+ *piPartIdxLabel = sqlite3VdbeMakeLabel(pParse);
pParse->iSelfTab = iDataCur + 1;
sqlite3ExprIfFalseDup(pParse, pIdx->pPartIdxWhere, *piPartIdxLabel,
SQLITE_JUMPIFNULL);
@@ -111622,6 +113955,7 @@ SQLITE_PRIVATE void sqlite3ResolvePartIdxLabel(Parse *pParse, int iLabel){
/* #include "sqliteInt.h" */
/* #include */
/* #include */
+/* #include */
/* #include "vdbeInt.h" */
/*
@@ -111807,6 +114141,9 @@ static void instrFunc(
int typeHaystack, typeNeedle;
int N = 1;
int isText;
+ unsigned char firstChar;
+ sqlite3_value *pC1 = 0;
+ sqlite3_value *pC2 = 0;
UNUSED_PARAMETER(argc);
typeHaystack = sqlite3_value_type(argv[0]);
@@ -111819,13 +114156,26 @@ static void instrFunc(
zHaystack = sqlite3_value_blob(argv[0]);
zNeedle = sqlite3_value_blob(argv[1]);
isText = 0;
- }else{
+ }else if( typeHaystack!=SQLITE_BLOB && typeNeedle!=SQLITE_BLOB ){
zHaystack = sqlite3_value_text(argv[0]);
zNeedle = sqlite3_value_text(argv[1]);
isText = 1;
+ }else{
+ pC1 = sqlite3_value_dup(argv[0]);
+ zHaystack = sqlite3_value_text(pC1);
+ if( zHaystack==0 ) goto endInstrOOM;
+ nHaystack = sqlite3_value_bytes(pC1);
+ pC2 = sqlite3_value_dup(argv[1]);
+ zNeedle = sqlite3_value_text(pC2);
+ if( zNeedle==0 ) goto endInstrOOM;
+ nNeedle = sqlite3_value_bytes(pC2);
+ isText = 1;
}
- if( zNeedle==0 || (nHaystack && zHaystack==0) ) return;
- while( nNeedle<=nHaystack && memcmp(zHaystack, zNeedle, nNeedle)!=0 ){
+ if( zNeedle==0 || (nHaystack && zHaystack==0) ) goto endInstrOOM;
+ firstChar = zNeedle[0];
+ while( nNeedle<=nHaystack
+ && (zHaystack[0]!=firstChar || memcmp(zHaystack, zNeedle, nNeedle)!=0)
+ ){
N++;
do{
nHaystack--;
@@ -111835,6 +114185,13 @@ static void instrFunc(
if( nNeedle>nHaystack ) N = 0;
}
sqlite3_result_int(context, N);
+endInstr:
+ sqlite3_value_free(pC1);
+ sqlite3_value_free(pC2);
+ return;
+endInstrOOM:
+ sqlite3_result_error_nomem(context);
+ goto endInstr;
}
/*
@@ -111988,10 +114345,10 @@ static void roundFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
** handle the rounding directly,
** otherwise use printf.
*/
- if( n==0 && r>=0 && r+4503599627370496.0 ){
+ /* The value has no fractional part so there is nothing to round */
+ }else if( n==0 ){
+ r = (double)((sqlite_int64)(r+(r<0?-0.5:+0.5)));
}else{
zBuf = sqlite3_mprintf("%.*f",n,r);
if( zBuf==0 ){
@@ -112116,11 +114473,11 @@ static void randomBlob(
int argc,
sqlite3_value **argv
){
- int n;
+ sqlite3_int64 n;
unsigned char *p;
assert( argc==1 );
UNUSED_PARAMETER(argc);
- n = sqlite3_value_int(argv[0]);
+ n = sqlite3_value_int64(argv[0]);
if( n<1 ){
n = 1;
}
@@ -112445,8 +114802,6 @@ static void likeFunc(
return;
}
#endif
- zB = sqlite3_value_text(argv[0]);
- zA = sqlite3_value_text(argv[1]);
/* Limit the length of the LIKE or GLOB pattern to avoid problems
** of deep recursion and N*N behavior in patternCompare().
@@ -112458,8 +114813,6 @@ static void likeFunc(
sqlite3_result_error(context, "LIKE or GLOB pattern too complex", -1);
return;
}
- assert( zB==sqlite3_value_text(argv[0]) ); /* Encoding did not change */
-
if( argc==3 ){
/* The escape character string must consist of a single UTF-8 character.
** Otherwise, return an error.
@@ -112475,6 +114828,8 @@ static void likeFunc(
}else{
escape = pInfo->matchSet;
}
+ zB = sqlite3_value_text(argv[0]);
+ zA = sqlite3_value_text(argv[1]);
if( zA && zB ){
#ifdef SQLITE_TEST
sqlite3_like_count++;
@@ -113400,35 +115755,24 @@ SQLITE_PRIVATE void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3 *db){
}
/*
-** Set the LIKEOPT flag on the 2-argument function with the given name.
-*/
-static void setLikeOptFlag(sqlite3 *db, const char *zName, u8 flagVal){
- FuncDef *pDef;
- pDef = sqlite3FindFunction(db, zName, 2, SQLITE_UTF8, 0);
- if( ALWAYS(pDef) ){
- pDef->funcFlags |= flagVal;
- }
-}
-
-/*
-** Register the built-in LIKE and GLOB functions. The caseSensitive
+** Re-register the built-in LIKE functions. The caseSensitive
** parameter determines whether or not the LIKE operator is case
-** sensitive. GLOB is always case sensitive.
+** sensitive.
*/
SQLITE_PRIVATE void sqlite3RegisterLikeFunctions(sqlite3 *db, int caseSensitive){
struct compareInfo *pInfo;
+ int flags;
if( caseSensitive ){
pInfo = (struct compareInfo*)&likeInfoAlt;
+ flags = SQLITE_FUNC_LIKE | SQLITE_FUNC_CASE;
}else{
pInfo = (struct compareInfo*)&likeInfoNorm;
+ flags = SQLITE_FUNC_LIKE;
}
sqlite3CreateFunc(db, "like", 2, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0);
sqlite3CreateFunc(db, "like", 3, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0);
- sqlite3CreateFunc(db, "glob", 2, SQLITE_UTF8,
- (struct compareInfo*)&globInfo, likeFunc, 0, 0, 0, 0, 0);
- setLikeOptFlag(db, "glob", SQLITE_FUNC_LIKE | SQLITE_FUNC_CASE);
- setLikeOptFlag(db, "like",
- caseSensitive ? (SQLITE_FUNC_LIKE | SQLITE_FUNC_CASE) : SQLITE_FUNC_LIKE);
+ sqlite3FindFunction(db, "like", 2, SQLITE_UTF8, 0)->funcFlags |= flags;
+ sqlite3FindFunction(db, "like", 3, SQLITE_UTF8, 0)->funcFlags |= flags;
}
/*
@@ -113600,9 +115944,6 @@ SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void){
sqlite3AlterFunctions();
#endif
sqlite3WindowFunctions();
-#if defined(SQLITE_ENABLE_STAT3) || defined(SQLITE_ENABLE_STAT4)
- sqlite3AnalyzeFunctions();
-#endif
sqlite3RegisterDateTimeFunctions();
sqlite3InsertBuiltinFuncs(aBuiltinFunc, ArraySize(aBuiltinFunc));
@@ -113956,7 +116297,7 @@ static void fkLookupParent(
int i; /* Iterator variable */
Vdbe *v = sqlite3GetVdbe(pParse); /* Vdbe to add code to */
int iCur = pParse->nTab - 1; /* Cursor number to use */
- int iOk = sqlite3VdbeMakeLabel(v); /* jump here if parent key found */
+ int iOk = sqlite3VdbeMakeLabel(pParse); /* jump here if parent key found */
sqlite3VdbeVerifyAbortable(v,
(!pFKey->isDeferred
@@ -114105,13 +116446,13 @@ static Expr *exprTableRegister(
if( iCol>=0 && iCol!=pTab->iPKey ){
pCol = &pTab->aCol[iCol];
pExpr->iTable = regBase + iCol + 1;
- pExpr->affinity = pCol->affinity;
+ pExpr->affExpr = pCol->affinity;
zColl = pCol->zColl;
if( zColl==0 ) zColl = db->pDfltColl->zName;
pExpr = sqlite3ExprAddCollateString(pParse, pExpr, zColl);
}else{
pExpr->iTable = regBase;
- pExpr->affinity = SQLITE_AFF_INTEGER;
+ pExpr->affExpr = SQLITE_AFF_INTEGER;
}
}
return pExpr;
@@ -114129,7 +116470,7 @@ static Expr *exprTableColumn(
){
Expr *pExpr = sqlite3Expr(db, TK_COLUMN, 0);
if( pExpr ){
- pExpr->pTab = pTab;
+ pExpr->y.pTab = pTab;
pExpr->iTable = iCursor;
pExpr->iColumn = iCol;
}
@@ -114218,7 +116559,7 @@ static void fkScanChildren(
zCol = pFKey->pFrom->aCol[iCol].zName;
pRight = sqlite3Expr(db, TK_ID, zCol);
pEq = sqlite3PExpr(pParse, TK_EQ, pLeft, pRight);
- pWhere = sqlite3ExprAnd(db, pWhere, pEq);
+ pWhere = sqlite3ExprAnd(pParse, pWhere, pEq);
}
/* If the child table is the same as the parent table, then add terms
@@ -114229,8 +116570,11 @@ static void fkScanChildren(
** NOT( $current_a==a AND $current_b==b AND ... )
**
** The first form is used for rowid tables. The second form is used
- ** for WITHOUT ROWID tables. In the second form, the primary key is
- ** (a,b,...)
+ ** for WITHOUT ROWID tables. In the second form, the *parent* key is
+ ** (a,b,...). Either the parent or primary key could be used to
+ ** uniquely identify the current row, but the parent key is more convenient
+ ** as the required values have already been loaded into registers
+ ** by the caller.
*/
if( pTab==pFKey->pFrom && nIncr>0 ){
Expr *pNe; /* Expression (pLeft != pRight) */
@@ -114242,19 +116586,18 @@ static void fkScanChildren(
pNe = sqlite3PExpr(pParse, TK_NE, pLeft, pRight);
}else{
Expr *pEq, *pAll = 0;
- Index *pPk = sqlite3PrimaryKeyIndex(pTab);
assert( pIdx!=0 );
- for(i=0; inKeyCol; i++){
+ for(i=0; inKeyCol; i++){
i16 iCol = pIdx->aiColumn[i];
assert( iCol>=0 );
pLeft = exprTableRegister(pParse, pTab, regData, iCol);
- pRight = exprTableColumn(db, pTab, pSrc->a[0].iCursor, iCol);
- pEq = sqlite3PExpr(pParse, TK_EQ, pLeft, pRight);
- pAll = sqlite3ExprAnd(db, pAll, pEq);
+ pRight = sqlite3Expr(db, TK_ID, pTab->aCol[iCol].zName);
+ pEq = sqlite3PExpr(pParse, TK_IS, pLeft, pRight);
+ pAll = sqlite3ExprAnd(pParse, pAll, pEq);
}
pNe = sqlite3PExpr(pParse, TK_NOT, pAll, 0);
}
- pWhere = sqlite3ExprAnd(db, pWhere, pNe);
+ pWhere = sqlite3ExprAnd(pParse, pWhere, pNe);
}
/* Resolve the references in the WHERE clause. */
@@ -114354,7 +116697,7 @@ SQLITE_PRIVATE void sqlite3FkDropTable(Parse *pParse, SrcList *pName, Table *pTa
if( p->isDeferred || (db->flags & SQLITE_DeferFKs) ) break;
}
if( !p ) return;
- iSkip = sqlite3VdbeMakeLabel(v);
+ iSkip = sqlite3VdbeMakeLabel(pParse);
sqlite3VdbeAddOp2(v, OP_FkIfZero, 1, iSkip); VdbeCoverage(v);
}
@@ -114639,7 +116982,7 @@ SQLITE_PRIVATE void sqlite3FkCheck(
/* Create a SrcList structure containing the child table. We need the
** child table as a SrcList for sqlite3WhereBegin() */
- pSrc = sqlite3SrcListAppend(db, 0, 0, 0);
+ pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0);
if( pSrc ){
struct SrcList_item *pItem = pSrc->a;
pItem->pTab = pFKey->pFrom;
@@ -114860,7 +117203,7 @@ static Trigger *fkActionTrigger(
sqlite3ExprAlloc(db, TK_ID, &tToCol, 0)),
sqlite3ExprAlloc(db, TK_ID, &tFromCol, 0)
);
- pWhere = sqlite3ExprAnd(db, pWhere, pEq);
+ pWhere = sqlite3ExprAnd(pParse, pWhere, pEq);
/* For ON UPDATE, construct the next term of the WHEN clause.
** The final WHEN clause will be like this:
@@ -114876,7 +117219,7 @@ static Trigger *fkActionTrigger(
sqlite3ExprAlloc(db, TK_ID, &tNew, 0),
sqlite3ExprAlloc(db, TK_ID, &tToCol, 0))
);
- pWhen = sqlite3ExprAnd(db, pWhen, pEq);
+ pWhen = sqlite3ExprAnd(pParse, pWhen, pEq);
}
if( action!=OE_Restrict && (action!=OE_Cascade || pChanges) ){
@@ -114912,11 +117255,11 @@ static Trigger *fkActionTrigger(
tFrom.n = nFrom;
pRaise = sqlite3Expr(db, TK_RAISE, "FOREIGN KEY constraint failed");
if( pRaise ){
- pRaise->affinity = OE_Abort;
+ pRaise->affExpr = OE_Abort;
}
pSelect = sqlite3SelectNew(pParse,
sqlite3ExprListAppend(pParse, 0, pRaise),
- sqlite3SrcListAppend(db, 0, &tFrom, 0),
+ sqlite3SrcListAppend(pParse, 0, &tFrom, 0),
pWhere,
0, 0, 0, 0, 0
);
@@ -114957,6 +117300,7 @@ static Trigger *fkActionTrigger(
return 0;
}
assert( pStep!=0 );
+ assert( pTrigger!=0 );
switch( action ){
case OE_Restrict:
@@ -115147,18 +117491,19 @@ SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){
}
for(n=0; nnColumn; n++){
i16 x = pIdx->aiColumn[n];
+ char aff;
if( x>=0 ){
- pIdx->zColAff[n] = pTab->aCol[x].affinity;
+ aff = pTab->aCol[x].affinity;
}else if( x==XN_ROWID ){
- pIdx->zColAff[n] = SQLITE_AFF_INTEGER;
+ aff = SQLITE_AFF_INTEGER;
}else{
- char aff;
assert( x==XN_EXPR );
assert( pIdx->aColExpr!=0 );
aff = sqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr);
- if( aff==0 ) aff = SQLITE_AFF_BLOB;
- pIdx->zColAff[n] = aff;
}
+ if( affSQLITE_AFF_NUMERIC) aff = SQLITE_AFF_NUMERIC;
+ pIdx->zColAff[n] = aff;
}
pIdx->zColAff[n] = 0;
}
@@ -115198,14 +117543,16 @@ SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){
}
for(i=0; inCol; i++){
+ assert( pTab->aCol[i].affinity!=0 );
zColAff[i] = pTab->aCol[i].affinity;
}
do{
zColAff[i--] = 0;
- }while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB );
+ }while( i>=0 && zColAff[i]<=SQLITE_AFF_BLOB );
pTab->zColAff = zColAff;
}
- i = sqlite3Strlen30(zColAff);
+ assert( zColAff!=0 );
+ i = sqlite3Strlen30NN(zColAff);
if( i ){
if( iReg ){
sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
@@ -115377,6 +117724,7 @@ SQLITE_PRIVATE void sqlite3AutoincrementBegin(Parse *pParse){
aOp[7].p2 = memId+2;
aOp[7].p1 = memId;
aOp[10].p2 = memId;
+ if( pParse->nTab==0 ) pParse->nTab = 1;
}
}
@@ -115871,7 +118219,7 @@ SQLITE_PRIVATE void sqlite3Insert(
int nIdx;
nIdx = sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, 0, -1, 0,
&iDataCur, &iIdxCur);
- aRegIdx = sqlite3DbMallocRawNN(db, sizeof(int)*(nIdx+1));
+ aRegIdx = sqlite3DbMallocRawNN(db, sizeof(int)*(nIdx+2));
if( aRegIdx==0 ){
goto insert_cleanup;
}
@@ -115880,9 +118228,18 @@ SQLITE_PRIVATE void sqlite3Insert(
aRegIdx[i] = ++pParse->nMem;
pParse->nMem += pIdx->nColumn;
}
+ aRegIdx[i] = ++pParse->nMem; /* Register to store the table record */
}
#ifndef SQLITE_OMIT_UPSERT
if( pUpsert ){
+ if( IsVirtual(pTab) ){
+ sqlite3ErrorMsg(pParse, "UPSERT not implemented for virtual table \"%s\"",
+ pTab->zName);
+ goto insert_cleanup;
+ }
+ if( sqlite3HasExplicitNulls(pParse, pUpsert->pUpsertTarget) ){
+ goto insert_cleanup;
+ }
pTabList->a[0].iCursor = iDataCur;
pUpsert->pUpsertSrc = pTabList;
pUpsert->regData = regData;
@@ -115923,7 +118280,7 @@ SQLITE_PRIVATE void sqlite3Insert(
/* Run the BEFORE and INSTEAD OF triggers, if there are any
*/
- endOfLoop = sqlite3VdbeMakeLabel(v);
+ endOfLoop = sqlite3VdbeMakeLabel(pParse);
if( tmask & TRIGGER_BEFORE ){
int regCols = sqlite3GetTempRange(pParse, pTab->nCol+1);
@@ -116005,16 +118362,12 @@ SQLITE_PRIVATE void sqlite3Insert(
}else if( pSelect ){
sqlite3VdbeAddOp2(v, OP_Copy, regFromSelect+ipkColumn, regRowid);
}else{
- VdbeOp *pOp;
- sqlite3ExprCode(pParse, pList->a[ipkColumn].pExpr, regRowid);
- pOp = sqlite3VdbeGetOp(v, -1);
- assert( pOp!=0 );
- if( pOp->opcode==OP_Null && !IsVirtual(pTab) ){
+ Expr *pIpk = pList->a[ipkColumn].pExpr;
+ if( pIpk->op==TK_NULL && !IsVirtual(pTab) ){
+ sqlite3VdbeAddOp3(v, OP_NewRowid, iDataCur, regRowid, regAutoinc);
appendFlag = 1;
- pOp->opcode = OP_NewRowid;
- pOp->p1 = iDataCur;
- pOp->p2 = regRowid;
- pOp->p3 = regAutoinc;
+ }else{
+ sqlite3ExprCode(pParse, pList->a[ipkColumn].pExpr, regRowid);
}
}
/* If the PRIMARY KEY expression is NULL, then use OP_NewRowid
@@ -116185,14 +118538,15 @@ insert_cleanup:
#endif
/*
-** Meanings of bits in of pWalker->eCode for checkConstraintUnchanged()
+** Meanings of bits in of pWalker->eCode for
+** sqlite3ExprReferencesUpdatedColumn()
*/
#define CKCNSTRNT_COLUMN 0x01 /* CHECK constraint uses a changing column */
#define CKCNSTRNT_ROWID 0x02 /* CHECK constraint references the ROWID */
-/* This is the Walker callback from checkConstraintUnchanged(). Set
-** bit 0x01 of pWalker->eCode if
-** pWalker->eCode to 0 if this expression node references any of the
+/* This is the Walker callback from sqlite3ExprReferencesUpdatedColumn().
+* Set bit 0x01 of pWalker->eCode if pWalker->eCode to 0 and if this
+** expression node references any of the
** columns that are being modifed by an UPDATE statement.
*/
static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){
@@ -116214,12 +118568,21 @@ static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){
** only columns that are modified by the UPDATE are those for which
** aiChng[i]>=0, and also the ROWID is modified if chngRowid is true.
**
-** Return true if CHECK constraint pExpr does not use any of the
+** Return true if CHECK constraint pExpr uses any of the
** changing columns (or the rowid if it is changing). In other words,
-** return true if this CHECK constraint can be skipped when validating
+** return true if this CHECK constraint must be validated for
** the new row in the UPDATE statement.
+**
+** 2018-09-15: pExpr might also be an expression for an index-on-expressions.
+** The operation of this routine is the same - return true if an only if
+** the expression uses one or more of columns identified by the second and
+** third arguments.
*/
-static int checkConstraintUnchanged(Expr *pExpr, int *aiChng, int chngRowid){
+SQLITE_PRIVATE int sqlite3ExprReferencesUpdatedColumn(
+ Expr *pExpr, /* The expression to be checked */
+ int *aiChng, /* aiChng[x]>=0 if column x changed by the UPDATE */
+ int chngRowid /* True if UPDATE changes the rowid */
+){
Walker w;
memset(&w, 0, sizeof(w));
w.eCode = 0;
@@ -116234,7 +118597,7 @@ static int checkConstraintUnchanged(Expr *pExpr, int *aiChng, int chngRowid){
testcase( w.eCode==CKCNSTRNT_COLUMN );
testcase( w.eCode==CKCNSTRNT_ROWID );
testcase( w.eCode==(CKCNSTRNT_ROWID|CKCNSTRNT_COLUMN) );
- return !w.eCode;
+ return w.eCode!=0;
}
/*
@@ -116272,6 +118635,14 @@ static int checkConstraintUnchanged(Expr *pExpr, int *aiChng, int chngRowid){
** the same as the order of indices on the linked list of indices
** at pTab->pIndex.
**
+** (2019-05-07) The generated code also creates a new record for the
+** main table, if pTab is a rowid table, and stores that record in the
+** register identified by aRegIdx[nIdx] - in other words in the first
+** entry of aRegIdx[] past the last index. It is important that the
+** record be generated during constraint checks to avoid affinity changes
+** to the register content that occur after constraint checks but before
+** the new record is inserted.
+**
** The caller must have already opened writeable cursors on the main
** table and all applicable indices (that is to say, all indices for which
** aRegIdx[] is not zero). iDataCur is the cursor for the main table when
@@ -116399,7 +118770,20 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
}
assert( onError==OE_Rollback || onError==OE_Abort || onError==OE_Fail
|| onError==OE_Ignore || onError==OE_Replace );
+ addr1 = 0;
switch( onError ){
+ case OE_Replace: {
+ assert( onError==OE_Replace );
+ addr1 = sqlite3VdbeMakeLabel(pParse);
+ sqlite3VdbeAddOp2(v, OP_NotNull, regNewData+1+i, addr1);
+ VdbeCoverage(v);
+ sqlite3ExprCode(pParse, pTab->aCol[i].pDflt, regNewData+1+i);
+ sqlite3VdbeAddOp2(v, OP_NotNull, regNewData+1+i, addr1);
+ VdbeCoverage(v);
+ onError = OE_Abort;
+ /* Fall through into the OE_Abort case to generate code that runs
+ ** if both the input and the default value are NULL */
+ }
case OE_Abort:
sqlite3MayAbort(pParse);
/* Fall through */
@@ -116412,19 +118796,13 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
sqlite3VdbeAppendP4(v, zMsg, P4_DYNAMIC);
sqlite3VdbeChangeP5(v, P5_ConstraintNotNull);
VdbeCoverage(v);
- break;
- }
- case OE_Ignore: {
- sqlite3VdbeAddOp2(v, OP_IsNull, regNewData+1+i, ignoreDest);
- VdbeCoverage(v);
+ if( addr1 ) sqlite3VdbeResolveLabel(v, addr1);
break;
}
default: {
- assert( onError==OE_Replace );
- addr1 = sqlite3VdbeAddOp1(v, OP_NotNull, regNewData+1+i);
- VdbeCoverage(v);
- sqlite3ExprCode(pParse, pTab->aCol[i].pDflt, regNewData+1+i);
- sqlite3VdbeJumpHere(v, addr1);
+ assert( onError==OE_Ignore );
+ sqlite3VdbeAddOp2(v, OP_IsNull, regNewData+1+i, ignoreDest);
+ VdbeCoverage(v);
break;
}
}
@@ -116440,8 +118818,14 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
for(i=0; inExpr; i++){
int allOk;
Expr *pExpr = pCheck->a[i].pExpr;
- if( aiChng && checkConstraintUnchanged(pExpr, aiChng, pkChng) ) continue;
- allOk = sqlite3VdbeMakeLabel(v);
+ if( aiChng
+ && !sqlite3ExprReferencesUpdatedColumn(pExpr, aiChng, pkChng)
+ ){
+ /* The check constraints do not reference any of the columns being
+ ** updated so there is no point it verifying the check constraint */
+ continue;
+ }
+ allOk = sqlite3VdbeMakeLabel(pParse);
sqlite3VdbeVerifyAbortable(v, onError);
sqlite3ExprIfTrue(pParse, pExpr, allOk, SQLITE_JUMPIFNULL);
if( onError==OE_Ignore ){
@@ -116449,7 +118833,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
}else{
char *zName = pCheck->a[i].zName;
if( zName==0 ) zName = pTab->zName;
- if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */
+ if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-26383-51744 */
sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_CHECK,
onError, zName, P4_TRANSIENT,
P5_ConstraintCheck);
@@ -116508,7 +118892,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
** exist in the table.
*/
if( pkChng && pPk==0 ){
- int addrRowidOk = sqlite3VdbeMakeLabel(v);
+ int addrRowidOk = sqlite3VdbeMakeLabel(pParse);
/* Figure out what action to take in case of a rowid collision */
onError = pTab->keyConf;
@@ -116658,7 +119042,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
VdbeComment((v, "Skip upsert subroutine"));
sqlite3VdbeJumpHere(v, upsertJump);
}else{
- addrUniqueOk = sqlite3VdbeMakeLabel(v);
+ addrUniqueOk = sqlite3VdbeMakeLabel(pParse);
}
if( bAffinityDone==0 && (pUpIdx==0 || pUpIdx==pIdx) ){
sqlite3TableAffinity(v, pTab, regNewData+1);
@@ -116702,7 +119086,9 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
sqlite3VdbeAddOp3(v, OP_MakeRecord, regIdx, pIdx->nColumn, aRegIdx[ix]);
VdbeComment((v, "for %s", pIdx->zName));
#ifdef SQLITE_ENABLE_NULL_TRIM
- if( pIdx->idxType==2 ) sqlite3SetMakeRecordP5(v, pIdx->pTable);
+ if( pIdx->idxType==SQLITE_IDXTYPE_PRIMARYKEY ){
+ sqlite3SetMakeRecordP5(v, pIdx->pTable);
+ }
#endif
/* In an UPDATE operation, if this index is the PRIMARY KEY index
@@ -116741,7 +119127,11 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
** (3) There are no secondary indexes on the table
** (4) No delete triggers need to be fired if there is a conflict
** (5) No FK constraint counters need to be updated if a conflict occurs.
- */
+ **
+ ** This is not possible for ENABLE_PREUPDATE_HOOK builds, as the row
+ ** must be explicitly deleted in order to ensure any pre-update hook
+ ** is invoked. */
+#ifndef SQLITE_ENABLE_PREUPDATE_HOOK
if( (ix==0 && pIdx->pNext==0) /* Condition 3 */
&& pPk==pIdx /* Condition 2 */
&& onError==OE_Replace /* Condition 1 */
@@ -116753,6 +119143,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
sqlite3VdbeResolveLabel(v, addrUniqueOk);
continue;
}
+#endif /* ifndef SQLITE_ENABLE_PREUPDATE_HOOK */
/* Check to see if the new index entry will be unique */
sqlite3VdbeVerifyAbortable(v, onError);
@@ -116866,11 +119257,21 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(
/* If the IPK constraint is a REPLACE, run it last */
if( ipkTop ){
- sqlite3VdbeGoto(v, ipkTop+1);
+ sqlite3VdbeGoto(v, ipkTop);
VdbeComment((v, "Do IPK REPLACE"));
sqlite3VdbeJumpHere(v, ipkBottom);
}
+ /* Generate the table record */
+ if( HasRowid(pTab) ){
+ int regRec = aRegIdx[ix];
+ sqlite3VdbeAddOp3(v, OP_MakeRecord, regNewData+1, pTab->nCol, regRec);
+ sqlite3SetMakeRecordP5(v, pTab);
+ if( !bAffinityDone ){
+ sqlite3TableAffinity(v, pTab, 0);
+ }
+ }
+
*pbMayReplace = seenReplace;
VdbeModuleComment((v, "END: GenCnstCks(%d)", seenReplace));
}
@@ -116920,10 +119321,7 @@ SQLITE_PRIVATE void sqlite3CompleteInsertion(
Vdbe *v; /* Prepared statements under construction */
Index *pIdx; /* An index being inserted or updated */
u8 pik_flags; /* flag values passed to the btree insert */
- int regData; /* Content registers (after the rowid) */
- int regRec; /* Register holding assembled record for the table */
int i; /* Loop counter */
- u8 bAffinityDone = 0; /* True if OP_Affinity has been run already */
assert( update_flags==0
|| update_flags==OPFLAG_ISUPDATE
@@ -116935,7 +119333,6 @@ SQLITE_PRIVATE void sqlite3CompleteInsertion(
assert( pTab->pSelect==0 ); /* This table is not a VIEW */
for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
if( aRegIdx[i]==0 ) continue;
- bAffinityDone = 1;
if( pIdx->pPartIdxWhere ){
sqlite3VdbeAddOp2(v, OP_IsNull, aRegIdx[i], sqlite3VdbeCurrentAddr(v)+2);
VdbeCoverage(v);
@@ -116947,10 +119344,13 @@ SQLITE_PRIVATE void sqlite3CompleteInsertion(
pik_flags |= (update_flags & OPFLAG_SAVEPOSITION);
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
if( update_flags==0 ){
- sqlite3VdbeAddOp4(v, OP_InsertInt,
- iIdxCur+i, aRegIdx[i], 0, (char*)pTab, P4_TABLE
+ int r = sqlite3GetTempReg(pParse);
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, r);
+ sqlite3VdbeAddOp4(v, OP_Insert,
+ iIdxCur+i, aRegIdx[i], r, (char*)pTab, P4_TABLE
);
sqlite3VdbeChangeP5(v, OPFLAG_ISNOOP);
+ sqlite3ReleaseTempReg(pParse, r);
}
#endif
}
@@ -116960,13 +119360,6 @@ SQLITE_PRIVATE void sqlite3CompleteInsertion(
sqlite3VdbeChangeP5(v, pik_flags);
}
if( !HasRowid(pTab) ) return;
- regData = regNewData + 1;
- regRec = sqlite3GetTempReg(pParse);
- sqlite3VdbeAddOp3(v, OP_MakeRecord, regData, pTab->nCol, regRec);
- sqlite3SetMakeRecordP5(v, pTab);
- if( !bAffinityDone ){
- sqlite3TableAffinity(v, pTab, 0);
- }
if( pParse->nested ){
pik_flags = 0;
}else{
@@ -116979,7 +119372,7 @@ SQLITE_PRIVATE void sqlite3CompleteInsertion(
if( useSeekResult ){
pik_flags |= OPFLAG_USESEEKRESULT;
}
- sqlite3VdbeAddOp3(v, OP_Insert, iDataCur, regRec, regNewData);
+ sqlite3VdbeAddOp3(v, OP_Insert, iDataCur, aRegIdx[i], regNewData);
if( !pParse->nested ){
sqlite3VdbeAppendP4(v, pTab, P4_TABLE);
}
@@ -117236,7 +119629,8 @@ static int xferOptimization(
if( pSrc==0 ){
return 0; /* FROM clause does not contain a real table */
}
- if( pSrc==pDest ){
+ if( pSrc->tnum==pDest->tnum && pSrc->pSchema==pDest->pSchema ){
+ testcase( pSrc!=pDest ); /* Possible due to bad sqlite_master.rootpage */
return 0; /* tab1 and tab2 may not be the same table */
}
if( HasRowid(pDest)!=HasRowid(pSrc) ){
@@ -117297,6 +119691,13 @@ static int xferOptimization(
if( pSrcIdx==0 ){
return 0; /* pDestIdx has no corresponding index in pSrc */
}
+ if( pSrcIdx->tnum==pDestIdx->tnum && pSrc->pSchema==pDest->pSchema
+ && sqlite3FaultSim(411)==SQLITE_OK ){
+ /* The sqlite3FaultSim() call allows this corruption test to be
+ ** bypassed during testing, in order to exercise other corruption tests
+ ** further downstream. */
+ return 0; /* Corrupt schema - two indexes on the same btree */
+ }
}
#ifndef SQLITE_OMIT_CHECK
if( pDest->pCheck && sqlite3ExprListCompare(pSrc->pCheck,pDest->pCheck,-1) ){
@@ -117374,7 +119775,7 @@ static int xferOptimization(
sqlite3RowidConstraint(pParse, onError, pDest);
sqlite3VdbeJumpHere(v, addr2);
autoIncStep(pParse, regAutoinc, regRowid);
- }else if( pDest->pIndex==0 ){
+ }else if( pDest->pIndex==0 && !(db->mDbFlags & DBFLAG_VacuumInto) ){
addr1 = sqlite3VdbeAddOp2(v, OP_NewRowid, iDest, regRowid);
}else{
addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid);
@@ -117437,7 +119838,7 @@ static int xferOptimization(
sqlite3VdbeAddOp1(v, OP_SeekEnd, iDest);
}
}
- if( !HasRowid(pSrc) && pDestIdx->idxType==2 ){
+ if( !HasRowid(pSrc) && pDestIdx->idxType==SQLITE_IDXTYPE_PRIMARYKEY ){
idxInsFlags |= OPFLAG_NCHANGE;
}
sqlite3VdbeAddOp2(v, OP_IdxInsert, iDest, regData);
@@ -117512,7 +119913,7 @@ SQLITE_API int sqlite3_exec(
sqlite3_mutex_enter(db->mutex);
sqlite3Error(db, SQLITE_OK);
while( rc==SQLITE_OK && zSql[0] ){
- int nCol;
+ int nCol = 0;
char **azVals = 0;
pStmt = 0;
@@ -117526,9 +119927,7 @@ SQLITE_API int sqlite3_exec(
zSql = zLeftover;
continue;
}
-
callbackIsInit = 0;
- nCol = sqlite3_column_count(pStmt);
while( 1 ){
int i;
@@ -117539,6 +119938,7 @@ SQLITE_API int sqlite3_exec(
(SQLITE_DONE==rc && !callbackIsInit
&& db->flags&SQLITE_NullCallback)) ){
if( !callbackIsInit ){
+ nCol = sqlite3_column_count(pStmt);
azCols = sqlite3DbMallocRaw(db, (2*nCol+1)*sizeof(const char*));
if( azCols==0 ){
goto exec_out;
@@ -117941,12 +120341,20 @@ struct sqlite3_api_routines {
int (*str_errcode)(sqlite3_str*);
int (*str_length)(sqlite3_str*);
char *(*str_value)(sqlite3_str*);
+ /* Version 3.25.0 and later */
int (*create_window_function)(sqlite3*,const char*,int,int,void*,
void (*xStep)(sqlite3_context*,int,sqlite3_value**),
void (*xFinal)(sqlite3_context*),
void (*xValue)(sqlite3_context*),
void (*xInv)(sqlite3_context*,int,sqlite3_value**),
void(*xDestroy)(void*));
+ /* Version 3.26.0 and later */
+ const char *(*normalized_sql)(sqlite3_stmt*);
+ /* Version 3.28.0 and later */
+ int (*stmt_isexplain)(sqlite3_stmt*);
+ int (*value_frombind)(sqlite3_value*);
+ /* Version 3.30.0 and later */
+ int (*drop_modules)(sqlite3*,const char**);
};
/*
@@ -118234,6 +120642,13 @@ typedef int (*sqlite3_loadext_entry)(
#define sqlite3_str_value sqlite3_api->str_value
/* Version 3.25.0 and later */
#define sqlite3_create_window_function sqlite3_api->create_window_function
+/* Version 3.26.0 and later */
+#define sqlite3_normalized_sql sqlite3_api->normalized_sql
+/* Version 3.28.0 and later */
+#define sqlite3_stmt_isexplain sqlite3_api->isexplain
+#define sqlite3_value_frombind sqlite3_api->frombind
+/* Version 3.30.0 and later */
+#define sqlite3_drop_modules sqlite3_api->drop_modules
#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */
#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
@@ -118322,6 +120737,7 @@ typedef int (*sqlite3_loadext_entry)(
# define sqlite3_declare_vtab 0
# define sqlite3_vtab_config 0
# define sqlite3_vtab_on_conflict 0
+# define sqlite3_vtab_collation 0
#endif
#ifdef SQLITE_OMIT_SHARED_CACHE
@@ -118689,7 +121105,22 @@ static const sqlite3_api_routines sqlite3Apis = {
sqlite3_str_length,
sqlite3_str_value,
/* Version 3.25.0 and later */
- sqlite3_create_window_function
+ sqlite3_create_window_function,
+ /* Version 3.26.0 and later */
+#ifdef SQLITE_ENABLE_NORMALIZE
+ sqlite3_normalized_sql,
+#else
+ 0,
+#endif
+ /* Version 3.28.0 and later */
+ sqlite3_stmt_isexplain,
+ sqlite3_value_frombind,
+ /* Version 3.30.0 and later */
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+ sqlite3_drop_modules,
+#else
+ 0,
+#endif
};
/*
@@ -118881,7 +121312,7 @@ SQLITE_API int sqlite3_enable_load_extension(sqlite3 *db, int onoff){
if( onoff ){
db->flags |= SQLITE_LoadExtension|SQLITE_LoadExtFunc;
}else{
- db->flags &= ~(SQLITE_LoadExtension|SQLITE_LoadExtFunc);
+ db->flags &= ~(u64)(SQLITE_LoadExtension|SQLITE_LoadExtFunc);
}
sqlite3_mutex_leave(db->mutex);
return SQLITE_OK;
@@ -119137,12 +121568,9 @@ SQLITE_PRIVATE void sqlite3AutoLoadExtensions(sqlite3 *db){
#define PragTyp_WAL_AUTOCHECKPOINT 38
#define PragTyp_WAL_CHECKPOINT 39
#define PragTyp_ACTIVATE_EXTENSIONS 40
-#define PragTyp_HEXKEY 41
-#define PragTyp_KEY 42
-#define PragTyp_REKEY 43
-#define PragTyp_LOCK_STATUS 44
-#define PragTyp_PARSER_TRACE 45
-#define PragTyp_STATS 46
+#define PragTyp_KEY 41
+#define PragTyp_LOCK_STATUS 42
+#define PragTyp_STATS 43
/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
@@ -119159,58 +121587,57 @@ SQLITE_PRIVATE void sqlite3AutoLoadExtensions(sqlite3 *db){
** result column is different from the name of the pragma
*/
static const char *const pragCName[] = {
- /* 0 */ "cache_size", /* Used by: default_cache_size */
- /* 1 */ "cid", /* Used by: table_info */
- /* 2 */ "name",
- /* 3 */ "type",
- /* 4 */ "notnull",
- /* 5 */ "dflt_value",
- /* 6 */ "pk",
- /* 7 */ "tbl", /* Used by: stats */
- /* 8 */ "idx",
- /* 9 */ "wdth",
- /* 10 */ "hght",
- /* 11 */ "flgs",
- /* 12 */ "seqno", /* Used by: index_info */
- /* 13 */ "cid",
- /* 14 */ "name",
+ /* 0 */ "id", /* Used by: foreign_key_list */
+ /* 1 */ "seq",
+ /* 2 */ "table",
+ /* 3 */ "from",
+ /* 4 */ "to",
+ /* 5 */ "on_update",
+ /* 6 */ "on_delete",
+ /* 7 */ "match",
+ /* 8 */ "cid", /* Used by: table_xinfo */
+ /* 9 */ "name",
+ /* 10 */ "type",
+ /* 11 */ "notnull",
+ /* 12 */ "dflt_value",
+ /* 13 */ "pk",
+ /* 14 */ "hidden",
+ /* table_info reuses 8 */
/* 15 */ "seqno", /* Used by: index_xinfo */
/* 16 */ "cid",
/* 17 */ "name",
/* 18 */ "desc",
/* 19 */ "coll",
/* 20 */ "key",
- /* 21 */ "seq", /* Used by: index_list */
- /* 22 */ "name",
- /* 23 */ "unique",
- /* 24 */ "origin",
- /* 25 */ "partial",
- /* 26 */ "seq", /* Used by: database_list */
+ /* 21 */ "tbl", /* Used by: stats */
+ /* 22 */ "idx",
+ /* 23 */ "wdth",
+ /* 24 */ "hght",
+ /* 25 */ "flgs",
+ /* 26 */ "seq", /* Used by: index_list */
/* 27 */ "name",
- /* 28 */ "file",
- /* 29 */ "name", /* Used by: function_list */
- /* 30 */ "builtin",
- /* 31 */ "name", /* Used by: module_list pragma_list */
- /* 32 */ "seq", /* Used by: collation_list */
- /* 33 */ "name",
- /* 34 */ "id", /* Used by: foreign_key_list */
- /* 35 */ "seq",
- /* 36 */ "table",
- /* 37 */ "from",
- /* 38 */ "to",
- /* 39 */ "on_update",
- /* 40 */ "on_delete",
- /* 41 */ "match",
- /* 42 */ "table", /* Used by: foreign_key_check */
- /* 43 */ "rowid",
- /* 44 */ "parent",
- /* 45 */ "fkid",
- /* 46 */ "busy", /* Used by: wal_checkpoint */
- /* 47 */ "log",
- /* 48 */ "checkpointed",
- /* 49 */ "timeout", /* Used by: busy_timeout */
- /* 50 */ "database", /* Used by: lock_status */
- /* 51 */ "status",
+ /* 28 */ "unique",
+ /* 29 */ "origin",
+ /* 30 */ "partial",
+ /* 31 */ "table", /* Used by: foreign_key_check */
+ /* 32 */ "rowid",
+ /* 33 */ "parent",
+ /* 34 */ "fkid",
+ /* index_info reuses 15 */
+ /* 35 */ "seq", /* Used by: database_list */
+ /* 36 */ "name",
+ /* 37 */ "file",
+ /* 38 */ "busy", /* Used by: wal_checkpoint */
+ /* 39 */ "log",
+ /* 40 */ "checkpointed",
+ /* 41 */ "name", /* Used by: function_list */
+ /* 42 */ "builtin",
+ /* collation_list reuses 26 */
+ /* 43 */ "database", /* Used by: lock_status */
+ /* 44 */ "status",
+ /* 45 */ "cache_size", /* Used by: default_cache_size */
+ /* module_list pragma_list reuses 9 */
+ /* 46 */ "timeout", /* Used by: busy_timeout */
};
/* Definitions of all built-in pragmas */
@@ -119220,7 +121647,7 @@ typedef struct PragmaName {
u8 mPragFlg; /* Zero or more PragFlg_XXX values */
u8 iPragCName; /* Start of column names in pragCName[] */
u8 nPragCName; /* Num of col names. 0 means use pragma name */
- u32 iArg; /* Extra argument */
+ u64 iArg; /* Extra argument */
} PragmaName;
static const PragmaName aPragmaName[] = {
#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
@@ -119256,7 +121683,7 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "busy_timeout",
/* ePragTyp: */ PragTyp_BUSY_TIMEOUT,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 49, 1,
+ /* ColNames: */ 46, 1,
/* iArg: */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
{/* zName: */ "cache_size",
@@ -119272,11 +121699,13 @@ static const PragmaName aPragmaName[] = {
/* ColNames: */ 0, 0,
/* iArg: */ 0 },
#endif
+#if !defined(SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA)
{/* zName: */ "case_sensitive_like",
/* ePragTyp: */ PragTyp_CASE_SENSITIVE_LIKE,
/* ePragFlg: */ PragFlg_NoColumns,
/* ColNames: */ 0, 0,
/* iArg: */ 0 },
+#endif
{/* zName: */ "cell_size_check",
/* ePragTyp: */ PragTyp_FLAG,
/* ePragFlg: */ PragFlg_Result0|PragFlg_NoColumns1,
@@ -119293,7 +121722,7 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "collation_list",
/* ePragTyp: */ PragTyp_COLLATION_LIST,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 32, 2,
+ /* ColNames: */ 26, 2,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
@@ -119328,14 +121757,14 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "database_list",
/* ePragTyp: */ PragTyp_DATABASE_LIST,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result0,
- /* ColNames: */ 26, 3,
+ /* ColNames: */ 35, 3,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
{/* zName: */ "default_cache_size",
/* ePragTyp: */ PragTyp_DEFAULT_CACHE_SIZE,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
- /* ColNames: */ 0, 1,
+ /* ColNames: */ 45, 1,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
@@ -119365,14 +121794,14 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "foreign_key_check",
/* ePragTyp: */ PragTyp_FOREIGN_KEY_CHECK,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result0,
- /* ColNames: */ 42, 4,
+ /* ColNames: */ 31, 4,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY)
{/* zName: */ "foreign_key_list",
/* ePragTyp: */ PragTyp_FOREIGN_KEY_LIST,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
- /* ColNames: */ 34, 8,
+ /* ColNames: */ 0, 8,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
@@ -119404,25 +121833,25 @@ static const PragmaName aPragmaName[] = {
/* iArg: */ SQLITE_FullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-#if defined(SQLITE_INTROSPECTION_PRAGMAS)
+#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
{/* zName: */ "function_list",
/* ePragTyp: */ PragTyp_FUNCTION_LIST,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 29, 2,
+ /* ColNames: */ 41, 2,
/* iArg: */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
{/* zName: */ "hexkey",
- /* ePragTyp: */ PragTyp_HEXKEY,
+ /* ePragTyp: */ PragTyp_KEY,
/* ePragFlg: */ 0,
/* ColNames: */ 0, 0,
- /* iArg: */ 0 },
+ /* iArg: */ 2 },
{/* zName: */ "hexrekey",
- /* ePragTyp: */ PragTyp_HEXKEY,
+ /* ePragTyp: */ PragTyp_KEY,
/* ePragFlg: */ 0,
/* ColNames: */ 0, 0,
- /* iArg: */ 0 },
+ /* iArg: */ 3 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
@@ -119444,12 +121873,12 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "index_info",
/* ePragTyp: */ PragTyp_INDEX_INFO,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
- /* ColNames: */ 12, 3,
+ /* ColNames: */ 15, 3,
/* iArg: */ 0 },
{/* zName: */ "index_list",
/* ePragTyp: */ PragTyp_INDEX_LIST,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
- /* ColNames: */ 21, 5,
+ /* ColNames: */ 26, 5,
/* iArg: */ 0 },
{/* zName: */ "index_xinfo",
/* ePragTyp: */ PragTyp_INDEX_INFO,
@@ -119506,7 +121935,7 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "lock_status",
/* ePragTyp: */ PragTyp_LOCK_STATUS,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 50, 2,
+ /* ColNames: */ 43, 2,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
@@ -119528,11 +121957,11 @@ static const PragmaName aPragmaName[] = {
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if !defined(SQLITE_OMIT_VIRTUALTABLE)
-#if defined(SQLITE_INTROSPECTION_PRAGMAS)
+#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
{/* zName: */ "module_list",
/* ePragTyp: */ PragTyp_MODULE_LIST,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 31, 1,
+ /* ColNames: */ 9, 1,
/* iArg: */ 0 },
#endif
#endif
@@ -119554,18 +121983,20 @@ static const PragmaName aPragmaName[] = {
/* ColNames: */ 0, 0,
/* iArg: */ 0 },
#endif
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if defined(SQLITE_DEBUG)
{/* zName: */ "parser_trace",
- /* ePragTyp: */ PragTyp_PARSER_TRACE,
- /* ePragFlg: */ 0,
+ /* ePragTyp: */ PragTyp_FLAG,
+ /* ePragFlg: */ PragFlg_Result0|PragFlg_NoColumns1,
/* ColNames: */ 0, 0,
- /* iArg: */ 0 },
+ /* iArg: */ SQLITE_ParserTrace },
#endif
-#if defined(SQLITE_INTROSPECTION_PRAGMAS)
+#endif
+#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
{/* zName: */ "pragma_list",
/* ePragTyp: */ PragTyp_PRAGMA_LIST,
/* ePragFlg: */ PragFlg_Result0,
- /* ColNames: */ 31, 1,
+ /* ColNames: */ 9, 1,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
@@ -119596,10 +122027,10 @@ static const PragmaName aPragmaName[] = {
#endif
#if defined(SQLITE_HAS_CODEC)
{/* zName: */ "rekey",
- /* ePragTyp: */ PragTyp_REKEY,
+ /* ePragTyp: */ PragTyp_KEY,
/* ePragFlg: */ 0,
/* ColNames: */ 0, 0,
- /* iArg: */ 0 },
+ /* iArg: */ 1 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
{/* zName: */ "reverse_unordered_selects",
@@ -119652,7 +122083,7 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "stats",
/* ePragTyp: */ PragTyp_STATS,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
- /* ColNames: */ 7, 5,
+ /* ColNames: */ 21, 5,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
@@ -119666,8 +122097,13 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "table_info",
/* ePragTyp: */ PragTyp_TABLE_INFO,
/* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
- /* ColNames: */ 1, 6,
+ /* ColNames: */ 8, 6,
/* iArg: */ 0 },
+ {/* zName: */ "table_xinfo",
+ /* ePragTyp: */ PragTyp_TABLE_INFO,
+ /* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
+ /* ColNames: */ 8, 7,
+ /* iArg: */ 1 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
{/* zName: */ "temp_store",
@@ -119680,6 +122116,18 @@ static const PragmaName aPragmaName[] = {
/* ePragFlg: */ PragFlg_NoColumns1,
/* ColNames: */ 0, 0,
/* iArg: */ 0 },
+#endif
+#if defined(SQLITE_HAS_CODEC)
+ {/* zName: */ "textkey",
+ /* ePragTyp: */ PragTyp_KEY,
+ /* ePragFlg: */ 0,
+ /* ColNames: */ 0, 0,
+ /* iArg: */ 4 },
+ {/* zName: */ "textrekey",
+ /* ePragTyp: */ PragTyp_KEY,
+ /* ePragFlg: */ 0,
+ /* ColNames: */ 0, 0,
+ /* iArg: */ 5 },
#endif
{/* zName: */ "threads",
/* ePragTyp: */ PragTyp_THREADS,
@@ -119731,7 +122179,7 @@ static const PragmaName aPragmaName[] = {
{/* zName: */ "wal_checkpoint",
/* ePragTyp: */ PragTyp_WAL_CHECKPOINT,
/* ePragFlg: */ PragFlg_NeedSchema,
- /* ColNames: */ 46, 3,
+ /* ColNames: */ 38, 3,
/* iArg: */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
@@ -119739,10 +122187,10 @@ static const PragmaName aPragmaName[] = {
/* ePragTyp: */ PragTyp_FLAG,
/* ePragFlg: */ PragFlg_Result0|PragFlg_NoColumns1,
/* ColNames: */ 0, 0,
- /* iArg: */ SQLITE_WriteSchema },
+ /* iArg: */ SQLITE_WriteSchema|SQLITE_NoSchemaError },
#endif
};
-/* Number of pragmas: 61 on by default, 78 total. */
+/* Number of pragmas: 65 on by default, 81 total. */
/************** End of pragma.h **********************************************/
/************** Continuing where we left off in pragma.c *********************/
@@ -120361,6 +122809,11 @@ SQLITE_PRIVATE void sqlite3Pragma(
** then do a query */
eMode = PAGER_JOURNALMODE_QUERY;
}
+ if( eMode==PAGER_JOURNALMODE_OFF && (db->flags & SQLITE_Defensive)!=0 ){
+ /* Do not allow journal-mode "OFF" in defensive since the database
+ ** can become corrupted using ordinary SQL when the journal is off */
+ eMode = PAGER_JOURNALMODE_QUERY;
+ }
}
if( eMode==PAGER_JOURNALMODE_QUERY && pId2->n==0 ){
/* Convert "PRAGMA journal_mode" into "PRAGMA main.journal_mode" */
@@ -120533,7 +122986,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
if( sqlite3GetBoolean(zRight, size!=0) ){
db->flags |= SQLITE_CacheSpill;
}else{
- db->flags &= ~SQLITE_CacheSpill;
+ db->flags &= ~(u64)SQLITE_CacheSpill;
}
setAllPagerFlags(db);
}
@@ -120754,7 +123207,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
setPragmaResultColumnNames(v, pPragma);
returnSingleInt(v, (db->flags & pPragma->iArg)!=0 );
}else{
- int mask = pPragma->iArg; /* Mask of bits to set or clear. */
+ u64 mask = pPragma->iArg; /* Mask of bits to set or clear. */
if( db->autoCommit==0 ){
/* Foreign key support may not be enabled or disabled while not
** in auto-commit mode. */
@@ -120803,15 +123256,17 @@ SQLITE_PRIVATE void sqlite3Pragma(
Table *pTab;
pTab = sqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
if( pTab ){
+ int iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);
int i, k;
int nHidden = 0;
Column *pCol;
Index *pPk = sqlite3PrimaryKeyIndex(pTab);
- pParse->nMem = 6;
- sqlite3CodeVerifySchema(pParse, iDb);
+ pParse->nMem = 7;
+ sqlite3CodeVerifySchema(pParse, iTabDb);
sqlite3ViewGetColumnNames(pParse, pTab);
for(i=0, pCol=pTab->aCol; inCol; i++, pCol++){
- if( IsHiddenColumn(pCol) ){
+ int isHidden = IsHiddenColumn(pCol);
+ if( isHidden && pPragma->iArg==0 ){
nHidden++;
continue;
}
@@ -120823,13 +123278,14 @@ SQLITE_PRIVATE void sqlite3Pragma(
for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
}
assert( pCol->pDflt==0 || pCol->pDflt->op==TK_SPAN );
- sqlite3VdbeMultiLoad(v, 1, "issisi",
+ sqlite3VdbeMultiLoad(v, 1, pPragma->iArg ? "issisii" : "issisi",
i-nHidden,
pCol->zName,
sqlite3ColumnType(pCol,""),
pCol->notNull ? 1 : 0,
pCol->pDflt ? pCol->pDflt->u.zToken : 0,
- k);
+ k,
+ isHidden);
}
}
}
@@ -120866,7 +123322,17 @@ SQLITE_PRIVATE void sqlite3Pragma(
Index *pIdx;
Table *pTab;
pIdx = sqlite3FindIndex(db, zRight, zDb);
+ if( pIdx==0 ){
+ /* If there is no index named zRight, check to see if there is a
+ ** WITHOUT ROWID table named zRight, and if there is, show the
+ ** structure of the PRIMARY KEY index for that table. */
+ pTab = sqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
+ if( pTab && !HasRowid(pTab) ){
+ pIdx = sqlite3PrimaryKeyIndex(pTab);
+ }
+ }
if( pIdx ){
+ int iIdxDb = sqlite3SchemaToIndex(db, pIdx->pSchema);
int i;
int mx;
if( pPragma->iArg ){
@@ -120879,7 +123345,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
pParse->nMem = 3;
}
pTab = pIdx->pTable;
- sqlite3CodeVerifySchema(pParse, iDb);
+ sqlite3CodeVerifySchema(pParse, iIdxDb);
assert( pParse->nMem<=pPragma->nPragCName );
for(i=0; iaiColumn[i];
@@ -120903,8 +123369,9 @@ SQLITE_PRIVATE void sqlite3Pragma(
int i;
pTab = sqlite3FindTable(db, zRight, zDb);
if( pTab ){
+ int iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);
pParse->nMem = 5;
- sqlite3CodeVerifySchema(pParse, iDb);
+ sqlite3CodeVerifySchema(pParse, iTabDb);
for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
const char *azOrigin[] = { "c", "u", "pk" };
sqlite3VdbeMultiLoad(v, 1, "isisi",
@@ -120943,7 +123410,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
}
break;
-#ifdef SQLITE_INTROSPECTION_PRAGMAS
+#ifndef SQLITE_OMIT_INTROSPECTION_PRAGMAS
case PragTyp_FUNCTION_LIST: {
int i;
HashElem *j;
@@ -120951,6 +123418,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
pParse->nMem = 2;
for(i=0; iu.pHash ){
+ if( p->funcFlags & SQLITE_FUNC_INTERNAL ) continue;
sqlite3VdbeMultiLoad(v, 1, "si", p->zName, 1);
}
}
@@ -120992,9 +123460,10 @@ SQLITE_PRIVATE void sqlite3Pragma(
if( pTab ){
pFK = pTab->pFKey;
if( pFK ){
+ int iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);
int i = 0;
pParse->nMem = 8;
- sqlite3CodeVerifySchema(pParse, iDb);
+ sqlite3CodeVerifySchema(pParse, iTabDb);
while(pFK){
int j;
for(j=0; jnCol; j++){
@@ -121039,9 +123508,9 @@ SQLITE_PRIVATE void sqlite3Pragma(
pParse->nMem += 4;
regKey = ++pParse->nMem;
regRow = ++pParse->nMem;
- sqlite3CodeVerifySchema(pParse, iDb);
k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
while( k ){
+ int iTabDb;
if( zRight ){
pTab = sqlite3LocateTable(pParse, 0, zRight, zDb);
k = 0;
@@ -121050,21 +123519,23 @@ SQLITE_PRIVATE void sqlite3Pragma(
k = sqliteHashNext(k);
}
if( pTab==0 || pTab->pFKey==0 ) continue;
- sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
+ iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);
+ sqlite3CodeVerifySchema(pParse, iTabDb);
+ sqlite3TableLock(pParse, iTabDb, pTab->tnum, 0, pTab->zName);
if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow;
- sqlite3OpenTable(pParse, 0, iDb, pTab, OP_OpenRead);
+ sqlite3OpenTable(pParse, 0, iTabDb, pTab, OP_OpenRead);
sqlite3VdbeLoadString(v, regResult, pTab->zName);
for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){
pParent = sqlite3FindTable(db, pFK->zTo, zDb);
if( pParent==0 ) continue;
pIdx = 0;
- sqlite3TableLock(pParse, iDb, pParent->tnum, 0, pParent->zName);
+ sqlite3TableLock(pParse, iTabDb, pParent->tnum, 0, pParent->zName);
x = sqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, 0);
if( x==0 ){
if( pIdx==0 ){
- sqlite3OpenTable(pParse, i, iDb, pParent, OP_OpenRead);
+ sqlite3OpenTable(pParse, i, iTabDb, pParent, OP_OpenRead);
}else{
- sqlite3VdbeAddOp3(v, OP_OpenRead, i, pIdx->tnum, iDb);
+ sqlite3VdbeAddOp3(v, OP_OpenRead, i, pIdx->tnum, iTabDb);
sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
}
}else{
@@ -121084,7 +123555,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
x = sqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, &aiCols);
assert( x==0 );
}
- addrOk = sqlite3VdbeMakeLabel(v);
+ addrOk = sqlite3VdbeMakeLabel(pParse);
/* Generate code to read the child key values into registers
** regRow..regRow+n. If any of the child key values are NULL, this
@@ -121129,19 +123600,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
#endif /* !defined(SQLITE_OMIT_TRIGGER) */
#endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */
-#ifndef NDEBUG
- case PragTyp_PARSER_TRACE: {
- if( zRight ){
- if( sqlite3GetBoolean(zRight, 0) ){
- sqlite3ParserTrace(stdout, "parser: ");
- }else{
- sqlite3ParserTrace(0, 0);
- }
- }
- }
- break;
-#endif
-
+#ifndef SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA
/* Reinstall the LIKE and GLOB functions. The variant of LIKE
** used will be case sensitive or not depending on the RHS.
*/
@@ -121151,6 +123610,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
}
}
break;
+#endif /* SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA */
#ifndef SQLITE_INTEGRITY_CHECK_ERROR_MAX
# define SQLITE_INTEGRITY_CHECK_ERROR_MAX 100
@@ -121304,8 +123764,8 @@ SQLITE_PRIVATE void sqlite3Pragma(
if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){
ExprList *pCheck = sqlite3ExprListDup(db, pTab->pCheck, 0);
if( db->mallocFailed==0 ){
- int addrCkFault = sqlite3VdbeMakeLabel(v);
- int addrCkOk = sqlite3VdbeMakeLabel(v);
+ int addrCkFault = sqlite3VdbeMakeLabel(pParse);
+ int addrCkOk = sqlite3VdbeMakeLabel(pParse);
char *zErr;
int k;
pParse->iSelfTab = iDataCur + 1;
@@ -121328,7 +123788,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
/* Validate index entries for the current row */
for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
int jmp2, jmp3, jmp4, jmp5;
- int ckUniq = sqlite3VdbeMakeLabel(v);
+ int ckUniq = sqlite3VdbeMakeLabel(pParse);
if( pPk==pIdx ) continue;
r1 = sqlite3GenerateIndexKey(pParse, pIdx, iDataCur, 0, 0, &jmp3,
pPrior, r1);
@@ -121349,7 +123809,7 @@ SQLITE_PRIVATE void sqlite3Pragma(
** current key. The entry is unique if (1) any column is NULL
** or (2) the next entry has a different key */
if( IsUniqueIndex(pIdx) ){
- int uniqOk = sqlite3VdbeMakeLabel(v);
+ int uniqOk = sqlite3VdbeMakeLabel(pParse);
int jmp6;
int kk;
for(kk=0; kknKeyCol; kk++){
@@ -121833,27 +124293,41 @@ SQLITE_PRIVATE void sqlite3Pragma(
#endif
#ifdef SQLITE_HAS_CODEC
+ /* Pragma iArg
+ ** ---------- ------
+ ** key 0
+ ** rekey 1
+ ** hexkey 2
+ ** hexrekey 3
+ ** textkey 4
+ ** textrekey 5
+ */
case PragTyp_KEY: {
- if( zRight ) sqlite3_key_v2(db, zDb, zRight, sqlite3Strlen30(zRight));
- break;
- }
- case PragTyp_REKEY: {
- if( zRight ) sqlite3_rekey_v2(db, zDb, zRight, sqlite3Strlen30(zRight));
- break;
- }
- case PragTyp_HEXKEY: {
if( zRight ){
- u8 iByte;
- int i;
- char zKey[40];
- for(i=0, iByte=0; iiArg==2 || pPragma->iArg==3 ){
+ u8 iByte;
+ int i;
+ for(i=0, iByte=0; iiArg<4 ? sqlite3Strlen30(zRight) : -1;
+ }
+ if( (pPragma->iArg & 1)==0 ){
+ rc = sqlite3_key_v2(db, zDb, zKey, n);
+ }else{
+ rc = sqlite3_rekey_v2(db, zDb, zKey, n);
+ }
+ if( rc==SQLITE_OK && n!=0 ){
+ sqlite3VdbeSetNumCols(v, 1);
+ sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "ok", SQLITE_STATIC);
+ returnSingleText(v, "ok");
}
}
break;
@@ -122180,7 +124654,8 @@ static const sqlite3_module pragmaVtabModule = {
0, /* xRename - rename the table */
0, /* xSavepoint */
0, /* xRelease */
- 0 /* xRollbackTo */
+ 0, /* xRollbackTo */
+ 0 /* xShadowName */
};
/*
@@ -122250,6 +124725,19 @@ static void corruptSchema(
}
}
+/*
+** Check to see if any sibling index (another index on the same table)
+** of pIndex has the same root page number, and if it does, return true.
+** This would indicate a corrupt schema.
+*/
+SQLITE_PRIVATE int sqlite3IndexHasDuplicateRootPage(Index *pIndex){
+ Index *p;
+ for(p=pIndex->pTable->pIndex; p; p=p->pNext){
+ if( p->tnum==pIndex->tnum && p!=pIndex ) return 1;
+ }
+ return 0;
+}
+
/*
** This is the callback routine for the code that initializes the
** database. See sqlite3Init() below for additional information.
@@ -122257,9 +124745,11 @@ static void corruptSchema(
**
** Each callback contains the following information:
**
-** argv[0] = name of thing being created
-** argv[1] = root page number for table or index. 0 for trigger or view.
-** argv[2] = SQL text for the CREATE statement.
+** argv[0] = type of object: "table", "index", "trigger", or "view".
+** argv[1] = name of thing being created
+** argv[2] = associated table if an index or trigger
+** argv[3] = root page number for table or index. 0 for trigger or view.
+** argv[4] = SQL text for the CREATE statement.
**
*/
SQLITE_PRIVATE int sqlite3InitCallback(void *pInit, int argc, char **argv, char **NotUsed){
@@ -122267,20 +124757,21 @@ SQLITE_PRIVATE int sqlite3InitCallback(void *pInit, int argc, char **argv, char
sqlite3 *db = pData->db;
int iDb = pData->iDb;
- assert( argc==3 );
+ assert( argc==5 );
UNUSED_PARAMETER2(NotUsed, argc);
assert( sqlite3_mutex_held(db->mutex) );
DbClearProperty(db, iDb, DB_Empty);
+ pData->nInitRow++;
if( db->mallocFailed ){
- corruptSchema(pData, argv[0], 0);
+ corruptSchema(pData, argv[1], 0);
return 1;
}
assert( iDb>=0 && iDbnDb );
if( argv==0 ) return 0; /* Might happen if EMPTY_RESULT_CALLBACKS are on */
- if( argv[1]==0 ){
- corruptSchema(pData, argv[0], 0);
- }else if( sqlite3_strnicmp(argv[2],"create ",7)==0 ){
+ if( argv[3]==0 ){
+ corruptSchema(pData, argv[1], 0);
+ }else if( sqlite3_strnicmp(argv[4],"create ",7)==0 ){
/* Call the parser to process a CREATE TABLE, INDEX or VIEW.
** But because db->init.busy is set to 1, no VDBE code is generated
** or executed. All the parser does is build the internal data
@@ -122293,9 +124784,10 @@ SQLITE_PRIVATE int sqlite3InitCallback(void *pInit, int argc, char **argv, char
assert( db->init.busy );
db->init.iDb = iDb;
- db->init.newTnum = sqlite3Atoi(argv[1]);
+ db->init.newTnum = sqlite3Atoi(argv[3]);
db->init.orphanTrigger = 0;
- TESTONLY(rcp = ) sqlite3_prepare(db, argv[2], -1, &pStmt, 0);
+ db->init.azInit = argv;
+ TESTONLY(rcp = ) sqlite3_prepare(db, argv[4], -1, &pStmt, 0);
rc = db->errCode;
assert( (rc&0xFF)==(rcp&0xFF) );
db->init.iDb = saved_iDb;
@@ -122304,17 +124796,17 @@ SQLITE_PRIVATE int sqlite3InitCallback(void *pInit, int argc, char **argv, char
if( db->init.orphanTrigger ){
assert( iDb==1 );
}else{
- pData->rc = rc;
+ if( rc > pData->rc ) pData->rc = rc;
if( rc==SQLITE_NOMEM ){
sqlite3OomFault(db);
}else if( rc!=SQLITE_INTERRUPT && (rc&0xFF)!=SQLITE_LOCKED ){
- corruptSchema(pData, argv[0], sqlite3_errmsg(db));
+ corruptSchema(pData, argv[1], sqlite3_errmsg(db));
}
}
}
sqlite3_finalize(pStmt);
- }else if( argv[0]==0 || (argv[2]!=0 && argv[2][0]!=0) ){
- corruptSchema(pData, argv[0], 0);
+ }else if( argv[1]==0 || (argv[4]!=0 && argv[4][0]!=0) ){
+ corruptSchema(pData, argv[1], 0);
}else{
/* If the SQL column is blank it means this is an index that
** was created to be the PRIMARY KEY or to fulfill a UNIQUE
@@ -122323,16 +124815,13 @@ SQLITE_PRIVATE int sqlite3InitCallback(void *pInit, int argc, char **argv, char
** to do here is record the root page number for that index.
*/
Index *pIndex;
- pIndex = sqlite3FindIndex(db, argv[0], db->aDb[iDb].zDbSName);
- if( pIndex==0 ){
- /* This can occur if there exists an index on a TEMP table which
- ** has the same name as another index on a permanent index. Since
- ** the permanent table is hidden by the TEMP table, we can also
- ** safely ignore the index on the permanent table.
- */
- /* Do Nothing */;
- }else if( sqlite3GetInt32(argv[1], &pIndex->tnum)==0 ){
- corruptSchema(pData, argv[0], "invalid rootpage");
+ pIndex = sqlite3FindIndex(db, argv[1], db->aDb[iDb].zDbSName);
+ if( pIndex==0
+ || sqlite3GetInt32(argv[3],&pIndex->tnum)==0
+ || pIndex->tnum<2
+ || sqlite3IndexHasDuplicateRootPage(pIndex)
+ ){
+ corruptSchema(pData, argv[1], pIndex?"invalid rootpage":"orphan index");
}
}
return 0;
@@ -122353,7 +124842,7 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl
int size;
#endif
Db *pDb;
- char const *azArg[4];
+ char const *azArg[6];
int meta[5];
InitData initData;
const char *zMasterName;
@@ -122372,17 +124861,20 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl
** table name will be inserted automatically by the parser so we can just
** use the abbreviation "x" here. The parser will also automatically tag
** the schema table as read-only. */
- azArg[0] = zMasterName = SCHEMA_TABLE(iDb);
- azArg[1] = "1";
- azArg[2] = "CREATE TABLE x(type text,name text,tbl_name text,"
+ azArg[0] = "table";
+ azArg[1] = zMasterName = SCHEMA_TABLE(iDb);
+ azArg[2] = azArg[1];
+ azArg[3] = "1";
+ azArg[4] = "CREATE TABLE x(type text,name text,tbl_name text,"
"rootpage int,sql text)";
- azArg[3] = 0;
+ azArg[5] = 0;
initData.db = db;
initData.iDb = iDb;
initData.rc = SQLITE_OK;
initData.pzErrMsg = pzErrMsg;
initData.mInitFlags = mFlags;
- sqlite3InitCallback(&initData, 3, (char **)azArg, 0);
+ initData.nInitRow = 0;
+ sqlite3InitCallback(&initData, 5, (char **)azArg, 0);
if( initData.rc ){
rc = initData.rc;
goto error_out;
@@ -122499,7 +124991,7 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl
** indices that the user might have created.
*/
if( iDb==0 && meta[BTREE_FILE_FORMAT-1]>=4 ){
- db->flags &= ~SQLITE_LegacyFileFmt;
+ db->flags &= ~(u64)SQLITE_LegacyFileFmt;
}
/* Read the schema information out of the schema tables
@@ -122508,7 +125000,7 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl
{
char *zSql;
zSql = sqlite3MPrintf(db,
- "SELECT name, rootpage, sql FROM \"%w\".%s ORDER BY rowid",
+ "SELECT*FROM\"%w\".%s ORDER BY rowid",
db->aDb[iDb].zDbSName, zMasterName);
#ifndef SQLITE_OMIT_AUTHORIZATION
{
@@ -122533,8 +125025,8 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl
rc = SQLITE_NOMEM_BKPT;
sqlite3ResetAllSchemasOfConnection(db);
}
- if( rc==SQLITE_OK || (db->flags&SQLITE_WriteSchema)){
- /* Black magic: If the SQLITE_WriteSchema flag is set, then consider
+ if( rc==SQLITE_OK || (db->flags&SQLITE_NoSchemaError)){
+ /* Black magic: If the SQLITE_NoSchemaError flag is set, then consider
** the schema loaded, even if errors occurred. In this situation the
** current sqlite3_prepare() operation will fail, but the following one
** will attempt to compile the supplied statement against whatever subset
@@ -122751,6 +125243,7 @@ static int sqlite3Prepare(
sParse.disableLookaside++;
db->lookaside.bDisable++;
}
+ sParse.disableVtab = (prepFlags & SQLITE_PREPARE_NO_VTAB)!=0;
/* Check to verify that it is possible to get a read lock on all
** database schemas. The inability to get a read lock indicates that
@@ -122828,7 +125321,10 @@ static int sqlite3Prepare(
rc = sParse.rc;
#ifndef SQLITE_OMIT_EXPLAIN
- if( rc==SQLITE_OK && sParse.pVdbe && sParse.explain ){
+ /* Justification for the ALWAYS(): The only way for rc to be SQLITE_OK and
+ ** sParse.pVdbe to be NULL is if the input SQL is an empty string, but in
+ ** that case, sParse.explain will be false. */
+ if( sParse.explain && rc==SQLITE_OK && ALWAYS(sParse.pVdbe) ){
static const char * const azColName[] = {
"addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment",
"id", "parent", "notused", "detail"
@@ -122853,8 +125349,8 @@ static int sqlite3Prepare(
if( db->init.busy==0 ){
sqlite3VdbeSetSql(sParse.pVdbe, zSql, (int)(sParse.zTail-zSql), prepFlags);
}
- if( sParse.pVdbe && (rc!=SQLITE_OK || db->mallocFailed) ){
- sqlite3VdbeFinalize(sParse.pVdbe);
+ if( rc!=SQLITE_OK || db->mallocFailed ){
+ if( sParse.pVdbe ) sqlite3VdbeFinalize(sParse.pVdbe);
assert(!(*ppStmt));
}else{
*ppStmt = (sqlite3_stmt*)sParse.pVdbe;
@@ -122915,6 +125411,7 @@ static int sqlite3LockAndPrepare(
return rc;
}
+
/*
** Rerun the compilation of a statement after a schema change.
**
@@ -123224,6 +125721,7 @@ static void clearSelect(sqlite3 *db, Select *p, int bFree){
if( OK_IF_ALWAYS_TRUE(p->pWinDefn) ){
sqlite3WindowListDelete(db, p->pWinDefn);
}
+ assert( p->pWin==0 );
#endif
if( OK_IF_ALWAYS_TRUE(p->pWith) ) sqlite3WithDelete(db, p->pWith);
if( bFree ) sqlite3DbFreeNN(db, p);
@@ -123479,7 +125977,7 @@ static void addWhereTerm(
ExprSetVVAProperty(pEq, EP_NoReduce);
pEq->iRightJoinTable = (i16)pE2->iTable;
}
- *ppWhere = sqlite3ExprAnd(db, *ppWhere, pEq);
+ *ppWhere = sqlite3ExprAnd(pParse, *ppWhere, pEq);
}
/*
@@ -123613,7 +126111,7 @@ static int sqliteProcessJoin(Parse *pParse, Select *p){
*/
if( pRight->pOn ){
if( isOuter ) setJoinExpr(pRight->pOn, pRight->iCursor);
- p->pWhere = sqlite3ExprAnd(pParse->db, p->pWhere, pRight->pOn);
+ p->pWhere = sqlite3ExprAnd(pParse, p->pWhere, pRight->pOn);
pRight->pOn = 0;
}
@@ -123755,7 +126253,7 @@ static void pushOntoSorter(
}
assert( pSelect->iOffset==0 || pSelect->iLimit!=0 );
iLimit = pSelect->iOffset ? pSelect->iOffset+1 : pSelect->iLimit;
- pSort->labelDone = sqlite3VdbeMakeLabel(v);
+ pSort->labelDone = sqlite3VdbeMakeLabel(pParse);
sqlite3ExprCodeExprList(pParse, pSort->pOrderBy, regBase, regOrigData,
SQLITE_ECEL_DUP | (regOrigData? SQLITE_ECEL_REF : 0));
if( bSeq ){
@@ -123787,14 +126285,14 @@ static void pushOntoSorter(
if( pParse->db->mallocFailed ) return;
pOp->p2 = nKey + nData;
pKI = pOp->p4.pKeyInfo;
- memset(pKI->aSortOrder, 0, pKI->nKeyField); /* Makes OP_Jump testable */
+ memset(pKI->aSortFlags, 0, pKI->nKeyField); /* Makes OP_Jump testable */
sqlite3VdbeChangeP4(v, -1, (char*)pKI, P4_KEYINFO);
testcase( pKI->nAllField > pKI->nKeyField+2 );
pOp->p4.pKeyInfo = sqlite3KeyInfoFromExprList(pParse,pSort->pOrderBy,nOBSat,
pKI->nAllField-pKI->nKeyField-1);
addrJmp = sqlite3VdbeCurrentAddr(v);
sqlite3VdbeAddOp3(v, OP_Jump, addrJmp+1, 0, addrJmp+1); VdbeCoverage(v);
- pSort->labelBkOut = sqlite3VdbeMakeLabel(v);
+ pSort->labelBkOut = sqlite3VdbeMakeLabel(pParse);
pSort->regReturn = ++pParse->nMem;
sqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
sqlite3VdbeAddOp1(v, OP_ResetSorter, pSort->iECursor);
@@ -123927,7 +126425,7 @@ static void selectExprDefer(
struct ExprList_item *pItem = &pEList->a[i];
if( pItem->u.x.iOrderByCol==0 ){
Expr *pExpr = pItem->pExpr;
- Table *pTab = pExpr->pTab;
+ Table *pTab = pExpr->y.pTab;
if( pExpr->op==TK_COLUMN && pExpr->iColumn>=0 && pTab && !IsVirtual(pTab)
&& (pTab->aCol[pExpr->iColumn].colFlags & COLFLAG_SORTERREF)
){
@@ -123950,12 +126448,12 @@ static void selectExprDefer(
Expr *pNew = sqlite3PExpr(pParse, TK_COLUMN, 0, 0);
if( pNew ){
pNew->iTable = pExpr->iTable;
- pNew->pTab = pExpr->pTab;
+ pNew->y.pTab = pExpr->y.pTab;
pNew->iColumn = pPk ? pPk->aiColumn[k] : -1;
pExtra = sqlite3ExprListAppend(pParse, pExtra, pNew);
}
}
- pSort->aDefer[nDefer].pTab = pExpr->pTab;
+ pSort->aDefer[nDefer].pTab = pExpr->y.pTab;
pSort->aDefer[nDefer].iCsr = pExpr->iTable;
pSort->aDefer[nDefer].nKey = nKey;
nDefer++;
@@ -124398,7 +126896,7 @@ SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){
int nExtra = (N+X)*(sizeof(CollSeq*)+1) - sizeof(CollSeq*);
KeyInfo *p = sqlite3DbMallocRawNN(db, sizeof(KeyInfo) + nExtra);
if( p ){
- p->aSortOrder = (u8*)&p->aColl[N+X];
+ p->aSortFlags = (u8*)&p->aColl[N+X];
p->nKeyField = (u16)N;
p->nAllField = (u16)(N+X);
p->enc = ENC(db);
@@ -124475,7 +126973,7 @@ SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoFromExprList(
assert( sqlite3KeyInfoIsWriteable(pInfo) );
for(i=iStart, pItem=pList->a+iStart; iaColl[i-iStart] = sqlite3ExprNNCollSeq(pParse, pItem->pExpr);
- pInfo->aSortOrder[i-iStart] = pItem->sortOrder;
+ pInfo->aSortFlags[i-iStart] = pItem->sortFlags;
}
}
return pInfo;
@@ -124541,7 +127039,7 @@ static void generateSortTail(
){
Vdbe *v = pParse->pVdbe; /* The prepared statement */
int addrBreak = pSort->labelDone; /* Jump here to exit loop */
- int addrContinue = sqlite3VdbeMakeLabel(v); /* Jump here for next cycle */
+ int addrContinue = sqlite3VdbeMakeLabel(pParse);/* Jump here for next cycle */
int addr; /* Top of output loop. Jump for Next. */
int addrOnce = 0;
int iTab;
@@ -124581,7 +127079,12 @@ static void generateSortTail(
regRow = pDest->iSdst;
}else{
regRowid = sqlite3GetTempReg(pParse);
- regRow = sqlite3GetTempRange(pParse, nColumn);
+ if( eDest==SRT_EphemTab || eDest==SRT_Table ){
+ regRow = sqlite3GetTempReg(pParse);
+ nColumn = 0;
+ }else{
+ regRow = sqlite3GetTempRange(pParse, nColumn);
+ }
}
nKey = pOrderBy->nExpr - pSort->nOBSat;
if( pSort->sortFlags & SORTFLAG_UseSorter ){
@@ -124661,6 +127164,7 @@ static void generateSortTail(
switch( eDest ){
case SRT_Table:
case SRT_EphemTab: {
+ sqlite3VdbeAddOp3(v, OP_Column, iSortTab, nKey+bSeq, regRow);
sqlite3VdbeAddOp2(v, OP_NewRowid, iParm, regRowid);
sqlite3VdbeAddOp3(v, OP_Insert, iParm, regRow, regRowid);
sqlite3VdbeChangeP5(v, OPFLAG_APPEND);
@@ -124761,8 +127265,6 @@ static const char *columnTypeImpl(
assert( pExpr!=0 );
assert( pNC->pSrcList!=0 );
- assert( pExpr->op!=TK_AGG_COLUMN ); /* This routine runes before aggregates
- ** are processed */
switch( pExpr->op ){
case TK_COLUMN: {
/* The expression is a column. Locate the table the column is being
@@ -124804,7 +127306,7 @@ static const char *columnTypeImpl(
break;
}
- assert( pTab && pExpr->pTab==pTab );
+ assert( pTab && pExpr->y.pTab==pTab );
if( pS ){
/* The "table" is actually a sub-select or a view in the FROM clause
** of the SELECT statement. Return the declaration type and origin
@@ -124989,7 +127491,7 @@ static void generateColumnNames(
assert( p!=0 );
assert( p->op!=TK_AGG_COLUMN ); /* Agg processing has not run yet */
- assert( p->op!=TK_COLUMN || p->pTab!=0 ); /* Covering idx not yet coded */
+ assert( p->op!=TK_COLUMN || p->y.pTab!=0 ); /* Covering idx not yet coded */
if( pEList->a[i].zName ){
/* An AS clause always takes first priority */
char *zName = pEList->a[i].zName;
@@ -124997,7 +127499,7 @@ static void generateColumnNames(
}else if( srcName && p->op==TK_COLUMN ){
char *zCol;
int iCol = p->iColumn;
- pTab = p->pTab;
+ pTab = p->y.pTab;
assert( pTab!=0 );
if( iCol<0 ) iCol = pTab->iPKey;
assert( iCol==-1 || (iCol>=0 && iColnCol) );
@@ -125079,16 +127581,15 @@ SQLITE_PRIVATE int sqlite3ColumnsFromExprList(
if( (zName = pEList->a[i].zName)!=0 ){
/* If the column contains an "AS " phrase, use as the name */
}else{
- Expr *pColExpr = sqlite3ExprSkipCollate(pEList->a[i].pExpr);
+ Expr *pColExpr = sqlite3ExprSkipCollateAndLikely(pEList->a[i].pExpr);
while( pColExpr->op==TK_DOT ){
pColExpr = pColExpr->pRight;
assert( pColExpr!=0 );
}
- assert( pColExpr->op!=TK_AGG_COLUMN );
if( pColExpr->op==TK_COLUMN ){
/* For columns use the column name name */
int iCol = pColExpr->iColumn;
- Table *pTab = pColExpr->pTab;
+ Table *pTab = pColExpr->y.pTab;
assert( pTab!=0 );
if( iCol<0 ) iCol = pTab->iPKey;
zName = iCol>=0 ? pTab->aCol[iCol].zName : "rowid";
@@ -125152,7 +127653,8 @@ SQLITE_PRIVATE int sqlite3ColumnsFromExprList(
SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(
Parse *pParse, /* Parsing contexts */
Table *pTab, /* Add column type information to this table */
- Select *pSelect /* SELECT used to determine types and collations */
+ Select *pSelect, /* SELECT used to determine types and collations */
+ char aff /* Default affinity for columns */
){
sqlite3 *db = pParse->db;
NameContext sNC;
@@ -125185,7 +127687,7 @@ SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(
pCol->colFlags |= COLFLAG_HASTYPE;
}
}
- if( pCol->affinity==0 ) pCol->affinity = SQLITE_AFF_BLOB;
+ if( pCol->affinity<=SQLITE_AFF_NONE ) pCol->affinity = aff;
pColl = sqlite3ExprCollSeq(pParse, p);
if( pColl && pCol->zColl==0 ){
pCol->zColl = sqlite3DbStrDup(db, pColl->zName);
@@ -125198,30 +127700,27 @@ SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(
** Given a SELECT statement, generate a Table structure that describes
** the result set of that SELECT.
*/
-SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse *pParse, Select *pSelect){
+SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse *pParse, Select *pSelect, char aff){
Table *pTab;
sqlite3 *db = pParse->db;
- int savedFlags;
+ u64 savedFlags;
savedFlags = db->flags;
- db->flags &= ~SQLITE_FullColNames;
+ db->flags &= ~(u64)SQLITE_FullColNames;
db->flags |= SQLITE_ShortColNames;
sqlite3SelectPrep(pParse, pSelect, 0);
+ db->flags = savedFlags;
if( pParse->nErr ) return 0;
while( pSelect->pPrior ) pSelect = pSelect->pPrior;
- db->flags = savedFlags;
pTab = sqlite3DbMallocZero(db, sizeof(Table) );
if( pTab==0 ){
return 0;
}
- /* The sqlite3ResultSetOfSelect() is only used n contexts where lookaside
- ** is disabled */
- assert( db->lookaside.bDisable );
pTab->nTabRef = 1;
pTab->zName = 0;
pTab->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) );
sqlite3ColumnsFromExprList(pParse, pSelect->pEList, &pTab->nCol, &pTab->aCol);
- sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSelect);
+ sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSelect, aff);
pTab->iPKey = -1;
if( db->mallocFailed ){
sqlite3DeleteTable(db, pTab);
@@ -125375,7 +127874,7 @@ static KeyInfo *multiSelectOrderByKeyInfo(Parse *pParse, Select *p, int nExtra){
}
assert( sqlite3KeyInfoIsWriteable(pRet) );
pRet->aColl[i] = pColl;
- pRet->aSortOrder[i] = pOrderBy->a[i].sortOrder;
+ pRet->aSortFlags[i] = pOrderBy->a[i].sortFlags;
}
}
@@ -125442,11 +127941,18 @@ static void generateWithRecursiveQuery(
Expr *pLimit; /* Saved LIMIT and OFFSET */
int regLimit, regOffset; /* Registers used by LIMIT and OFFSET */
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( p->pWin ){
+ sqlite3ErrorMsg(pParse, "cannot use window functions in recursive queries");
+ return;
+ }
+#endif
+
/* Obtain authorization to do a recursive query */
if( sqlite3AuthCheck(pParse, SQLITE_RECURSIVE, 0, 0, 0) ) return;
/* Process the LIMIT and OFFSET clauses, if they exist */
- addrBreak = sqlite3VdbeMakeLabel(v);
+ addrBreak = sqlite3VdbeMakeLabel(pParse);
p->nSelectRow = 320; /* 4 billion rows */
computeLimitRegisters(pParse, p, addrBreak);
pLimit = p->pLimit;
@@ -125516,7 +128022,7 @@ static void generateWithRecursiveQuery(
sqlite3VdbeAddOp1(v, OP_Delete, iQueue);
/* Output the single row in Current */
- addrCont = sqlite3VdbeMakeLabel(v);
+ addrCont = sqlite3VdbeMakeLabel(pParse);
codeOffset(v, regOffset, addrCont);
selectInnerLoop(pParse, p, iCurrent,
0, 0, pDest, addrCont, addrBreak);
@@ -125651,6 +128157,7 @@ static int multiSelect(
*/
assert( p && p->pPrior ); /* Calling function guarantees this much */
assert( (p->selFlags & SF_Recursive)==0 || p->op==TK_ALL || p->op==TK_UNION );
+ assert( p->selFlags & SF_Compound );
db = pParse->db;
pPrior = p->pPrior;
dest = *pDest;
@@ -125824,8 +128331,8 @@ static int multiSelect(
if( dest.eDest!=priorOp ){
int iCont, iBreak, iStart;
assert( p->pEList );
- iBreak = sqlite3VdbeMakeLabel(v);
- iCont = sqlite3VdbeMakeLabel(v);
+ iBreak = sqlite3VdbeMakeLabel(pParse);
+ iCont = sqlite3VdbeMakeLabel(pParse);
computeLimitRegisters(pParse, p, iBreak);
sqlite3VdbeAddOp2(v, OP_Rewind, unionTab, iBreak); VdbeCoverage(v);
iStart = sqlite3VdbeCurrentAddr(v);
@@ -125893,8 +128400,8 @@ static int multiSelect(
** tables.
*/
assert( p->pEList );
- iBreak = sqlite3VdbeMakeLabel(v);
- iCont = sqlite3VdbeMakeLabel(v);
+ iBreak = sqlite3VdbeMakeLabel(pParse);
+ iCont = sqlite3VdbeMakeLabel(pParse);
computeLimitRegisters(pParse, p, iBreak);
sqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v);
r1 = sqlite3GetTempReg(pParse);
@@ -126024,7 +128531,7 @@ static int generateOutputSubroutine(
int addr;
addr = sqlite3VdbeCurrentAddr(v);
- iContinue = sqlite3VdbeMakeLabel(v);
+ iContinue = sqlite3VdbeMakeLabel(pParse);
/* Suppress duplicates for UNION, EXCEPT, and INTERSECT
*/
@@ -126078,11 +128585,14 @@ static int generateOutputSubroutine(
/* If this is a scalar select that is part of an expression, then
** store the results in the appropriate memory cell and break out
- ** of the scan loop.
+ ** of the scan loop. Note that the select might return multiple columns
+ ** if it is the RHS of a row-value IN operator.
*/
case SRT_Mem: {
- assert( pIn->nSdst==1 || pParse->nErr>0 ); testcase( pIn->nSdst!=1 );
- sqlite3ExprCodeMove(pParse, pIn->iSdst, pDest->iSDParm, 1);
+ if( pParse->nErr==0 ){
+ testcase( pIn->nSdst>1 );
+ sqlite3ExprCodeMove(pParse, pIn->iSdst, pDest->iSDParm, pIn->nSdst);
+ }
/* The LIMIT clause will jump out of the loop for us */
break;
}
@@ -126261,8 +128771,8 @@ static int multiSelectOrderBy(
db = pParse->db;
v = pParse->pVdbe;
assert( v!=0 ); /* Already thrown the error if VDBE alloc failed */
- labelEnd = sqlite3VdbeMakeLabel(v);
- labelCmpr = sqlite3VdbeMakeLabel(v);
+ labelEnd = sqlite3VdbeMakeLabel(pParse);
+ labelCmpr = sqlite3VdbeMakeLabel(pParse);
/* Patch up the ORDER BY clause
@@ -126339,7 +128849,7 @@ static int multiSelectOrderBy(
assert( sqlite3KeyInfoIsWriteable(pKeyDup) );
for(i=0; iaColl[i] = multiSelectCollSeq(pParse, p, i);
- pKeyDup->aSortOrder[i] = 0;
+ pKeyDup->aSortFlags[i] = 0;
}
}
}
@@ -126578,6 +129088,7 @@ static Expr *substExpr(
ifNullRow.iTable = pSubst->iNewTable;
pCopy = &ifNullRow;
}
+ testcase( ExprHasProperty(pCopy, EP_Subquery) );
pNew = sqlite3ExprDup(db, pCopy, 0);
if( pNew && pSubst->isLeftJoin ){
ExprSetProperty(pNew, EP_CanBeNull);
@@ -126588,6 +129099,18 @@ static Expr *substExpr(
}
sqlite3ExprDelete(db, pExpr);
pExpr = pNew;
+
+ /* Ensure that the expression now has an implicit collation sequence,
+ ** just as it did when it was a column of a view or sub-query. */
+ if( pExpr ){
+ if( pExpr->op!=TK_COLUMN && pExpr->op!=TK_COLLATE ){
+ CollSeq *pColl = sqlite3ExprCollSeq(pSubst->pParse, pExpr);
+ pExpr = sqlite3ExprAddCollateString(pSubst->pParse, pExpr,
+ (pColl ? pColl->zName : "BINARY")
+ );
+ }
+ ExprClearProperty(pExpr, EP_Collate);
+ }
}
}
}else{
@@ -126601,6 +129124,14 @@ static Expr *substExpr(
}else{
substExprList(pSubst, pExpr->x.pList);
}
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ Window *pWin = pExpr->y.pWin;
+ pWin->pFilter = substExpr(pSubst, pWin->pFilter);
+ substExprList(pSubst, pWin->pPartition);
+ substExprList(pSubst, pWin->pOrderBy);
+ }
+#endif
}
return pExpr;
}
@@ -127061,6 +129592,7 @@ static int flattenSubquery(
for(pParent=p; pParent; pParent=pParent->pPrior, pSub=pSub->pPrior){
int nSubSrc;
u8 jointype = 0;
+ assert( pSub!=0 );
pSubSrc = pSub->pSrc; /* FROM clause of subquery */
nSubSrc = pSubSrc->nSrc; /* Number of terms in subquery FROM clause */
pSrc = pParent->pSrc; /* FROM clause of the outer query */
@@ -127070,11 +129602,9 @@ static int flattenSubquery(
jointype = pSubitem->fg.jointype;
}else{
assert( pParent!=p ); /* 2nd and subsequent times through the loop */
- pSrc = pParent->pSrc = sqlite3SrcListAppend(db, 0, 0, 0);
- if( pSrc==0 ){
- assert( db->mallocFailed );
- break;
- }
+ pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0);
+ if( pSrc==0 ) break;
+ pParent->pSrc = pSrc;
}
/* The subquery uses a single slot of the FROM clause of the outer
@@ -127093,10 +129623,9 @@ static int flattenSubquery(
** for the two elements in the FROM clause of the subquery.
*/
if( nSubSrc>1 ){
- pParent->pSrc = pSrc = sqlite3SrcListEnlarge(db, pSrc, nSubSrc-1,iFrom+1);
- if( db->mallocFailed ){
- break;
- }
+ pSrc = sqlite3SrcListEnlarge(pParse, pSrc, nSubSrc-1,iFrom+1);
+ if( pSrc==0 ) break;
+ pParent->pSrc = pSrc;
}
/* Transfer the FROM clause terms from the subquery into the
@@ -127142,11 +129671,12 @@ static int flattenSubquery(
pParent->pOrderBy = pOrderBy;
pSub->pOrderBy = 0;
}
- pWhere = sqlite3ExprDup(db, pSub->pWhere, 0);
+ pWhere = pSub->pWhere;
+ pSub->pWhere = 0;
if( isLeftJoin>0 ){
setJoinExpr(pWhere, iNewParent);
}
- pParent->pWhere = sqlite3ExprAnd(db, pWhere, pParent->pWhere);
+ pParent->pWhere = sqlite3ExprAnd(pParse, pWhere, pParent->pWhere);
if( db->mallocFailed==0 ){
SubstContext x;
x.pParse = pParse;
@@ -127157,10 +129687,10 @@ static int flattenSubquery(
substSelect(&x, pParent, 0);
}
- /* The flattened query is distinct if either the inner or the
- ** outer query is distinct.
- */
- pParent->selFlags |= pSub->selFlags & SF_Distinct;
+ /* The flattened query is a compound if either the inner or the
+ ** outer query is a compound. */
+ pParent->selFlags |= pSub->selFlags & SF_Compound;
+ assert( (pSub->selFlags & SF_Distinct)==0 ); /* restriction (17b) */
/*
** SELECT ... FROM (SELECT ... LIMIT a OFFSET b) LIMIT x OFFSET y;
@@ -127191,7 +129721,7 @@ static int flattenSubquery(
#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
/*
-** A structure to keep track of all of the column values that fixed to
+** A structure to keep track of all of the column values that are fixed to
** a known value due to WHERE clause constraints of the form COLUMN=VALUE.
*/
typedef struct WhereConst WhereConst;
@@ -127203,13 +129733,28 @@ struct WhereConst {
};
/*
-** Add a new entry to the pConst object
+** Add a new entry to the pConst object. Except, do not add duplicate
+** pColumn entires.
*/
static void constInsert(
- WhereConst *pConst,
- Expr *pColumn,
- Expr *pValue
+ WhereConst *pConst, /* The WhereConst into which we are inserting */
+ Expr *pColumn, /* The COLUMN part of the constraint */
+ Expr *pValue /* The VALUE part of the constraint */
){
+ int i;
+ assert( pColumn->op==TK_COLUMN );
+
+ /* 2018-10-25 ticket [cf5ed20f]
+ ** Make sure the same pColumn is not inserted more than once */
+ for(i=0; inConst; i++){
+ const Expr *pExpr = pConst->apExpr[i*2];
+ assert( pExpr->op==TK_COLUMN );
+ if( pExpr->iTable==pColumn->iTable
+ && pExpr->iColumn==pColumn->iColumn
+ ){
+ return; /* Already present. Return without doing anything. */
+ }
+ }
pConst->nConst++;
pConst->apExpr = sqlite3DbReallocOrFree(pConst->pParse->db, pConst->apExpr,
@@ -127466,9 +130011,9 @@ static int pushDownWhereTerms(
x.pEList = pSubq->pEList;
pNew = substExpr(&x, pNew);
if( pSubq->selFlags & SF_Aggregate ){
- pSubq->pHaving = sqlite3ExprAnd(pParse->db, pSubq->pHaving, pNew);
+ pSubq->pHaving = sqlite3ExprAnd(pParse, pSubq->pHaving, pNew);
}else{
- pSubq->pWhere = sqlite3ExprAnd(pParse->db, pSubq->pWhere, pNew);
+ pSubq->pWhere = sqlite3ExprAnd(pParse, pSubq->pWhere, pNew);
}
pSubq = pSubq->pPrior;
}
@@ -127498,24 +130043,27 @@ static u8 minMaxQuery(sqlite3 *db, Expr *pFunc, ExprList **ppMinMax){
ExprList *pEList = pFunc->x.pList; /* Arguments to agg function */
const char *zFunc; /* Name of aggregate function pFunc */
ExprList *pOrderBy;
- u8 sortOrder;
+ u8 sortFlags;
assert( *ppMinMax==0 );
assert( pFunc->op==TK_AGG_FUNCTION );
- if( pEList==0 || pEList->nExpr!=1 ) return eRet;
+ assert( !IsWindowFunc(pFunc) );
+ if( pEList==0 || pEList->nExpr!=1 || ExprHasProperty(pFunc, EP_WinFunc) ){
+ return eRet;
+ }
zFunc = pFunc->u.zToken;
if( sqlite3StrICmp(zFunc, "min")==0 ){
eRet = WHERE_ORDERBY_MIN;
- sortOrder = SQLITE_SO_ASC;
+ sortFlags = KEYINFO_ORDER_BIGNULL;
}else if( sqlite3StrICmp(zFunc, "max")==0 ){
eRet = WHERE_ORDERBY_MAX;
- sortOrder = SQLITE_SO_DESC;
+ sortFlags = KEYINFO_ORDER_DESC;
}else{
return eRet;
}
*ppMinMax = pOrderBy = sqlite3ExprListDup(db, pEList, 0);
assert( pOrderBy!=0 || db->mallocFailed );
- if( pOrderBy ) pOrderBy->a[0].sortOrder = sortOrder;
+ if( pOrderBy ) pOrderBy->a[0].sortFlags = sortFlags;
return eRet;
}
@@ -127549,7 +130097,7 @@ static Table *isSimpleCount(Select *p, AggInfo *pAggInfo){
if( pExpr->op!=TK_AGG_FUNCTION ) return 0;
if( NEVER(pAggInfo->nFunc==0) ) return 0;
if( (pAggInfo->aFunc[0].pFunc->funcFlags&SQLITE_FUNC_COUNT)==0 ) return 0;
- if( pExpr->flags&EP_Distinct ) return 0;
+ if( ExprHasProperty(pExpr, EP_Distinct|EP_WinFunc) ) return 0;
return pTab;
}
@@ -127894,7 +130442,7 @@ SQLITE_PRIVATE int sqlite3ExpandSubquery(Parse *pParse, struct SrcList_item *pFr
pTab->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) );
pTab->tabFlags |= TF_Ephemeral;
- return SQLITE_OK;
+ return pParse->nErr ? SQLITE_ERROR : SQLITE_OK;
}
/*
@@ -127940,6 +130488,10 @@ static int selectExpander(Walker *pWalker, Select *p){
if( (selFlags & SF_Expanded)!=0 ){
return WRC_Prune;
}
+ if( pWalker->eCode ){
+ /* Renumber selId because it has been copied from a view */
+ p->selId = ++pParse->nSelect;
+ }
pTabList = p->pSrc;
pEList = p->pEList;
sqlite3WithPush(pParse, p->pWith, 0);
@@ -127989,12 +130541,19 @@ static int selectExpander(Walker *pWalker, Select *p){
#if !defined(SQLITE_OMIT_VIEW) || !defined (SQLITE_OMIT_VIRTUALTABLE)
if( IsVirtual(pTab) || pTab->pSelect ){
i16 nCol;
+ u8 eCodeOrig = pWalker->eCode;
if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort;
assert( pFrom->pSelect==0 );
+ if( pTab->pSelect && (db->flags & SQLITE_EnableView)==0 ){
+ sqlite3ErrorMsg(pParse, "access to view \"%s\" prohibited",
+ pTab->zName);
+ }
pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0);
nCol = pTab->nCol;
pTab->nCol = -1;
+ pWalker->eCode = 1; /* Turn on Select.selId renumbering */
sqlite3WalkSelect(pWalker, pFrom->pSelect);
+ pWalker->eCode = eCodeOrig;
pTab->nCol = nCol;
}
#endif
@@ -128244,6 +130803,7 @@ static void sqlite3SelectExpand(Parse *pParse, Select *pSelect){
}
w.xSelectCallback = selectExpander;
w.xSelectCallback2 = selectPopWith;
+ w.eCode = 0;
sqlite3WalkSelect(&w, pSelect);
}
@@ -128281,7 +130841,8 @@ static void selectAddSubqueryTypeInfo(Walker *pWalker, Select *p){
Select *pSel = pFrom->pSelect;
if( pSel ){
while( pSel->pPrior ) pSel = pSel->pPrior;
- sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSel);
+ sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSel,
+ SQLITE_AFF_NONE);
}
}
}
@@ -128403,7 +130964,7 @@ static void finalizeAggFunctions(Parse *pParse, AggInfo *pAggInfo){
**
** If regAcc is non-zero and there are no min() or max() aggregates
** in pAggInfo, then only populate the pAggInfo->nAccumulator accumulator
-** registers i register regAcc contains 0. The caller will take care
+** registers if register regAcc contains 0. The caller will take care
** of setting and clearing regAcc.
*/
static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
@@ -128421,6 +130982,25 @@ static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
int regAgg;
ExprList *pList = pF->pExpr->x.pList;
assert( !ExprHasProperty(pF->pExpr, EP_xIsSelect) );
+ assert( !IsWindowFunc(pF->pExpr) );
+ if( ExprHasProperty(pF->pExpr, EP_WinFunc) ){
+ Expr *pFilter = pF->pExpr->y.pWin->pFilter;
+ if( pAggInfo->nAccumulator
+ && (pF->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL)
+ ){
+ if( regHit==0 ) regHit = ++pParse->nMem;
+ /* If this is the first row of the group (regAcc==0), clear the
+ ** "magnet" register regHit so that the accumulator registers
+ ** are populated if the FILTER clause jumps over the the
+ ** invocation of min() or max() altogether. Or, if this is not
+ ** the first row (regAcc==1), set the magnet register so that the
+ ** accumulators are not populated unless the min()/max() is invoked and
+ ** indicates that they should be. */
+ sqlite3VdbeAddOp2(v, OP_Copy, regAcc, regHit);
+ }
+ addrNext = sqlite3VdbeMakeLabel(pParse);
+ sqlite3ExprIfFalse(pParse, pFilter, addrNext, SQLITE_JUMPIFNULL);
+ }
if( pList ){
nArg = pList->nExpr;
regAgg = sqlite3GetTempRange(pParse, nArg);
@@ -128430,7 +131010,9 @@ static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
regAgg = 0;
}
if( pF->iDistinct>=0 ){
- addrNext = sqlite3VdbeMakeLabel(v);
+ if( addrNext==0 ){
+ addrNext = sqlite3VdbeMakeLabel(pParse);
+ }
testcase( nArg==0 ); /* Error condition */
testcase( nArg>1 ); /* Also an error */
codeDistinct(pParse, pF->iDistinct, addrNext, 1, regAgg);
@@ -128466,6 +131048,7 @@ static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
for(i=0, pC=pAggInfo->aCol; inAccumulator; i++, pC++){
sqlite3ExprCode(pParse, pC->pExpr, pC->iMem);
}
+
pAggInfo->directMode = 0;
if( addrHitTest ){
sqlite3VdbeJumpHere(v, addrHitTest);
@@ -128511,11 +131094,11 @@ static int havingToWhereExprCb(Walker *pWalker, Expr *pExpr){
Select *pS = pWalker->u.pSelect;
if( sqlite3ExprIsConstantOrGroupBy(pWalker->pParse, pExpr, pS->pGroupBy) ){
sqlite3 *db = pWalker->pParse->db;
- Expr *pNew = sqlite3ExprAlloc(db, TK_INTEGER, &sqlite3IntTokens[1], 0);
+ Expr *pNew = sqlite3Expr(db, TK_INTEGER, "1");
if( pNew ){
Expr *pWhere = pS->pWhere;
SWAP(Expr, *pNew, *pExpr);
- pNew = sqlite3ExprAnd(db, pWhere, pNew);
+ pNew = sqlite3ExprAnd(pWalker->pParse, pWhere, pNew);
pS->pWhere = pNew;
pWalker->eCode = 1;
}
@@ -128566,13 +131149,22 @@ static struct SrcList_item *isSelfJoinView(
){
struct SrcList_item *pItem;
for(pItem = pTabList->a; pItempSelect==0 ) continue;
if( pItem->fg.viaCoroutine ) continue;
if( pItem->zName==0 ) continue;
- if( sqlite3_stricmp(pItem->zDatabase, pThis->zDatabase)!=0 ) continue;
+ assert( pItem->pTab!=0 );
+ assert( pThis->pTab!=0 );
+ if( pItem->pTab->pSchema!=pThis->pTab->pSchema ) continue;
if( sqlite3_stricmp(pItem->zName, pThis->zName)!=0 ) continue;
- if( sqlite3ExprCompare(0,
- pThis->pSelect->pWhere, pItem->pSelect->pWhere, -1)
+ pS1 = pItem->pSelect;
+ if( pItem->pTab->pSchema==0 && pThis->pSelect->selId!=pS1->selId ){
+ /* The query flattener left two different CTE tables with identical
+ ** names in the same FROM clause. */
+ continue;
+ }
+ if( sqlite3ExprCompare(0, pThis->pSelect->pWhere, pS1->pWhere, -1)
+ || sqlite3ExprCompare(0, pThis->pSelect->pHaving, pS1->pHaving, -1)
){
/* The view was modified by some other optimization such as
** pushDownWhereTerms() */
@@ -128598,7 +131190,8 @@ static struct SrcList_item *isSelfJoinView(
** * The subquery is a UNION ALL of two or more terms
** * The subquery does not have a LIMIT clause
** * There is no WHERE or GROUP BY or HAVING clauses on the subqueries
-** * The outer query is a simple count(*)
+** * The outer query is a simple count(*) with no WHERE clause or other
+** extraneous syntax.
**
** Return TRUE if the optimization is undertaken.
*/
@@ -128609,6 +131202,8 @@ static int countOfViewOptimization(Parse *pParse, Select *p){
sqlite3 *db;
if( (p->selFlags & SF_Aggregate)==0 ) return 0; /* This is an aggregate */
if( p->pEList->nExpr!=1 ) return 0; /* Single result column */
+ if( p->pWhere ) return 0;
+ if( p->pGroupBy ) return 0;
pExpr = p->pEList->a[0].pExpr;
if( pExpr->op!=TK_AGG_FUNCTION ) return 0; /* Result is an aggregate */
if( sqlite3_stricmp(pExpr->u.zToken,"count") ) return 0; /* Is count() */
@@ -128835,6 +131430,7 @@ SQLITE_PRIVATE int sqlite3Select(
}
if( flattenSubquery(pParse, p, i, isAgg) ){
+ if( pParse->nErr ) goto select_end;
/* This subquery can be absorbed into its parent. */
i = -1;
}
@@ -128920,7 +131516,7 @@ SQLITE_PRIVATE int sqlite3Select(
** assume the column name is non-NULL and segfault. The use of an empty
** string for the fake column name seems safer.
*/
- if( pItem->colUsed==0 ){
+ if( pItem->colUsed==0 && pItem->zName!=0 ){
sqlite3AuthCheck(pParse, SQLITE_READ, pItem->zName, "", pItem->zDatabase);
}
@@ -128930,22 +131526,19 @@ SQLITE_PRIVATE int sqlite3Select(
pSub = pItem->pSelect;
if( pSub==0 ) continue;
- /* Sometimes the code for a subquery will be generated more than
- ** once, if the subquery is part of the WHERE clause in a LEFT JOIN,
- ** for example. In that case, do not regenerate the code to manifest
- ** a view or the co-routine to implement a view. The first instance
- ** is sufficient, though the subroutine to manifest the view does need
- ** to be invoked again. */
- if( pItem->addrFillSub ){
- if( pItem->fg.viaCoroutine==0 ){
- /* The subroutine that manifests the view might be a one-time routine,
- ** or it might need to be rerun on each iteration because it
- ** encodes a correlated subquery. */
- testcase( sqlite3VdbeGetOp(v, pItem->addrFillSub)->opcode==OP_Once );
- sqlite3VdbeAddOp2(v, OP_Gosub, pItem->regReturn, pItem->addrFillSub);
- }
- continue;
- }
+ /* The code for a subquery should only be generated once, though it is
+ ** technically harmless for it to be generated multiple times. The
+ ** following assert() will detect if something changes to cause
+ ** the same subquery to be coded multiple times, as a signal to the
+ ** developers to try to optimize the situation.
+ **
+ ** Update 2019-07-24:
+ ** See ticket https://sqlite.org/src/tktview/c52b09c7f38903b1311cec40.
+ ** The dbsqlfuzz fuzzer found a case where the same subquery gets
+ ** coded twice. So this assert() now becomes a testcase(). It should
+ ** be very rare, though.
+ */
+ testcase( pItem->addrFillSub!=0 );
/* Increment Parse.nHeight by the height of the largest expression
** tree referred to by this, the parent select. The child select
@@ -129019,7 +131612,7 @@ SQLITE_PRIVATE int sqlite3Select(
int retAddr;
struct SrcList_item *pPrior;
- assert( pItem->addrFillSub==0 );
+ testcase( pItem->addrFillSub==0 ); /* Ticket c52b09c7f38903b1311 */
pItem->regReturn = ++pParse->nMem;
topAddr = sqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn);
pItem->addrFillSub = topAddr+1;
@@ -129133,7 +131726,7 @@ SQLITE_PRIVATE int sqlite3Select(
/* Set the limiter.
*/
- iEnd = sqlite3VdbeMakeLabel(v);
+ iEnd = sqlite3VdbeMakeLabel(pParse);
if( (p->selFlags & SF_FixedLimit)==0 ){
p->nSelectRow = 320; /* 4 billion rows */
}
@@ -129200,9 +131793,9 @@ SQLITE_PRIVATE int sqlite3Select(
assert( p->pEList==pEList );
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pWin ){
- int addrGosub = sqlite3VdbeMakeLabel(v);
- int iCont = sqlite3VdbeMakeLabel(v);
- int iBreak = sqlite3VdbeMakeLabel(v);
+ int addrGosub = sqlite3VdbeMakeLabel(pParse);
+ int iCont = sqlite3VdbeMakeLabel(pParse);
+ int iBreak = sqlite3VdbeMakeLabel(pParse);
int regGosub = ++pParse->nMem;
sqlite3WindowCodeStep(pParse, p, pWInfo, regGosub, addrGosub);
@@ -129259,25 +131852,37 @@ SQLITE_PRIVATE int sqlite3Select(
}
assert( 66==sqlite3LogEst(100) );
if( p->nSelectRow>66 ) p->nSelectRow = 66;
+
+ /* If there is both a GROUP BY and an ORDER BY clause and they are
+ ** identical, then it may be possible to disable the ORDER BY clause
+ ** on the grounds that the GROUP BY will cause elements to come out
+ ** in the correct order. It also may not - the GROUP BY might use a
+ ** database index that causes rows to be grouped together as required
+ ** but not actually sorted. Either way, record the fact that the
+ ** ORDER BY and GROUP BY clauses are the same by setting the orderByGrp
+ ** variable. */
+ if( sSort.pOrderBy && pGroupBy->nExpr==sSort.pOrderBy->nExpr ){
+ int ii;
+ /* The GROUP BY processing doesn't care whether rows are delivered in
+ ** ASC or DESC order - only that each group is returned contiguously.
+ ** So set the ASC/DESC flags in the GROUP BY to match those in the
+ ** ORDER BY to maximize the chances of rows being delivered in an
+ ** order that makes the ORDER BY redundant. */
+ for(ii=0; iinExpr; ii++){
+ u8 sortFlags = sSort.pOrderBy->a[ii].sortFlags & KEYINFO_ORDER_DESC;
+ pGroupBy->a[ii].sortFlags = sortFlags;
+ }
+ if( sqlite3ExprListCompare(pGroupBy, sSort.pOrderBy, -1)==0 ){
+ orderByGrp = 1;
+ }
+ }
}else{
assert( 0==sqlite3LogEst(1) );
p->nSelectRow = 0;
}
- /* If there is both a GROUP BY and an ORDER BY clause and they are
- ** identical, then it may be possible to disable the ORDER BY clause
- ** on the grounds that the GROUP BY will cause elements to come out
- ** in the correct order. It also may not - the GROUP BY might use a
- ** database index that causes rows to be grouped together as required
- ** but not actually sorted. Either way, record the fact that the
- ** ORDER BY and GROUP BY clauses are the same by setting the orderByGrp
- ** variable. */
- if( sqlite3ExprListCompare(pGroupBy, sSort.pOrderBy, -1)==0 ){
- orderByGrp = 1;
- }
-
/* Create a label to jump to when we want to abort the query */
- addrEnd = sqlite3VdbeMakeLabel(v);
+ addrEnd = sqlite3VdbeMakeLabel(pParse);
/* Convert TK_COLUMN nodes into TK_AGG_COLUMN and make entries in
** sAggInfo for all TK_AGG_FUNCTION nodes in expressions of the
@@ -129310,9 +131915,16 @@ SQLITE_PRIVATE int sqlite3Select(
minMaxFlag = WHERE_ORDERBY_NORMAL;
}
for(i=0; ix.pList);
+ sqlite3ExprAnalyzeAggList(&sNC, pExpr->x.pList);
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ assert( !IsWindowFunc(pExpr) );
+ if( ExprHasProperty(pExpr, EP_WinFunc) ){
+ sqlite3ExprAnalyzeAggregates(&sNC, pExpr->y.pWin->pFilter);
+ }
+#endif
sNC.ncFlags &= ~NC_InAggFunc;
}
sAggInfo.mxReg = pParse->nMem;
@@ -129366,9 +131978,9 @@ SQLITE_PRIVATE int sqlite3Select(
iUseFlag = ++pParse->nMem;
iAbortFlag = ++pParse->nMem;
regOutputRow = ++pParse->nMem;
- addrOutputRow = sqlite3VdbeMakeLabel(v);
+ addrOutputRow = sqlite3VdbeMakeLabel(pParse);
regReset = ++pParse->nMem;
- addrReset = sqlite3VdbeMakeLabel(v);
+ addrReset = sqlite3VdbeMakeLabel(pParse);
iAMem = pParse->nMem + 1;
pParse->nMem += pGroupBy->nExpr;
iBMem = pParse->nMem + 1;
@@ -129624,13 +132236,18 @@ SQLITE_PRIVATE int sqlite3Select(
{
int regAcc = 0; /* "populate accumulators" flag */
- /* If there are accumulator registers but no min() or max() functions,
- ** allocate register regAcc. Register regAcc will contain 0 the first
- ** time the inner loop runs, and 1 thereafter. The code generated
- ** by updateAccumulator() only updates the accumulator registers if
- ** regAcc contains 0. */
+ /* If there are accumulator registers but no min() or max() functions
+ ** without FILTER clauses, allocate register regAcc. Register regAcc
+ ** will contain 0 the first time the inner loop runs, and 1 thereafter.
+ ** The code generated by updateAccumulator() uses this to ensure
+ ** that the accumulator registers are (a) updated only once if
+ ** there are no min() or max functions or (b) always updated for the
+ ** first row visited by the aggregate, so that they are updated at
+ ** least once even if the FILTER clause means the min() or max()
+ ** function visits zero rows. */
if( sAggInfo.nAccumulator ){
for(i=0; ifuncFlags&SQLITE_FUNC_NEEDCOLL ) break;
}
if( i==sAggInfo.nFunc ){
@@ -130101,7 +132718,11 @@ SQLITE_PRIVATE void sqlite3BeginTrigger(
/* Check that the trigger name is not reserved and that no trigger of the
** specified name exists */
zName = sqlite3NameFromToken(db, pName);
- if( !zName || SQLITE_OK!=sqlite3CheckObjectName(pParse, zName) ){
+ if( zName==0 ){
+ assert( db->mallocFailed );
+ goto trigger_cleanup;
+ }
+ if( sqlite3CheckObjectName(pParse, zName, "trigger", pTab->zName) ){
goto trigger_cleanup;
}
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
@@ -130264,6 +132885,7 @@ SQLITE_PRIVATE void sqlite3FinishTrigger(
Trigger *pLink = pTrig;
Hash *pHash = &db->aDb[iDb].pSchema->trigHash;
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
+ assert( pLink!=0 );
pTrig = sqlite3HashInsert(pHash, zName, pTrig);
if( pTrig ){
sqlite3OomFault(db);
@@ -130382,6 +133004,9 @@ SQLITE_PRIVATE TriggerStep *sqlite3TriggerInsertStep(
pTriggerStep->pIdList = pColumn;
pTriggerStep->pUpsert = pUpsert;
pTriggerStep->orconf = orconf;
+ if( pUpsert ){
+ sqlite3HasExplicitNulls(pParse, pUpsert->pUpsertTarget);
+ }
}else{
testcase( pColumn );
sqlite3IdListDelete(db, pColumn);
@@ -130537,10 +133162,9 @@ SQLITE_PRIVATE void sqlite3DropTriggerPtr(Parse *pParse, Trigger *pTrigger){
iDb = sqlite3SchemaToIndex(pParse->db, pTrigger->pSchema);
assert( iDb>=0 && iDbnDb );
pTable = tableOfTrigger(pTrigger);
- assert( pTable );
- assert( pTable->pSchema==pTrigger->pSchema || iDb==1 );
+ assert( (pTable && pTable->pSchema==pTrigger->pSchema) || iDb==1 );
#ifndef SQLITE_OMIT_AUTHORIZATION
- {
+ if( pTable ){
int code = SQLITE_DROP_TRIGGER;
const char *zDb = db->aDb[iDb].zDbSName;
const char *zTab = SCHEMA_TABLE(iDb);
@@ -130554,7 +133178,6 @@ SQLITE_PRIVATE void sqlite3DropTriggerPtr(Parse *pParse, Trigger *pTrigger){
/* Generate code to destroy the database record of the trigger.
*/
- assert( pTable!=0 );
if( (v = sqlite3GetVdbe(pParse))!=0 ){
sqlite3NestedParse(pParse,
"DELETE FROM %Q.%s WHERE name=%Q AND type='trigger'",
@@ -130578,9 +133201,11 @@ SQLITE_PRIVATE void sqlite3UnlinkAndDeleteTrigger(sqlite3 *db, int iDb, const ch
if( ALWAYS(pTrigger) ){
if( pTrigger->pSchema==pTrigger->pTabSchema ){
Table *pTab = tableOfTrigger(pTrigger);
- Trigger **pp;
- for(pp=&pTab->pTrigger; *pp!=pTrigger; pp=&((*pp)->pNext));
- *pp = (*pp)->pNext;
+ if( pTab ){
+ Trigger **pp;
+ for(pp=&pTab->pTrigger; *pp!=pTrigger; pp=&((*pp)->pNext));
+ *pp = (*pp)->pNext;
+ }
}
sqlite3DeleteTrigger(db, pTrigger);
db->mDbFlags |= DBFLAG_SchemaChange;
@@ -130655,7 +133280,7 @@ static SrcList *targetSrcList(
int iDb; /* Index of the database to use */
SrcList *pSrc; /* SrcList to be returned */
- pSrc = sqlite3SrcListAppend(db, 0, 0, 0);
+ pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0);
if( pSrc ){
assert( pSrc->nSrc>0 );
pSrc->a[pSrc->nSrc-1].zName = sqlite3DbStrDup(db, pStep->zTarget);
@@ -130840,6 +133465,7 @@ static TriggerPrg *codeRowTrigger(
pSubParse->zAuthContext = pTrigger->zName;
pSubParse->eTriggerOp = pTrigger->op;
pSubParse->nQueryLoop = pParse->nQueryLoop;
+ pSubParse->disableVtab = pParse->disableVtab;
v = sqlite3GetVdbe(pSubParse);
if( v ){
@@ -130867,7 +133493,7 @@ static TriggerPrg *codeRowTrigger(
if( SQLITE_OK==sqlite3ResolveExprNames(&sNC, pWhen)
&& db->mallocFailed==0
){
- iEndTrigger = sqlite3VdbeMakeLabel(v);
+ iEndTrigger = sqlite3VdbeMakeLabel(pSubParse);
sqlite3ExprIfFalse(pSubParse, pWhen, iEndTrigger, SQLITE_JUMPIFNULL);
}
sqlite3ExprDelete(db, pWhen);
@@ -131191,6 +133817,57 @@ SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *v, Table *pTab, int i, int iReg){
#endif
}
+/*
+** Check to see if column iCol of index pIdx references any of the
+** columns defined by aXRef and chngRowid. Return true if it does
+** and false if not. This is an optimization. False-positives are a
+** performance degradation, but false-negatives can result in a corrupt
+** index and incorrect answers.
+**
+** aXRef[j] will be non-negative if column j of the original table is
+** being updated. chngRowid will be true if the rowid of the table is
+** being updated.
+*/
+static int indexColumnIsBeingUpdated(
+ Index *pIdx, /* The index to check */
+ int iCol, /* Which column of the index to check */
+ int *aXRef, /* aXRef[j]>=0 if column j is being updated */
+ int chngRowid /* true if the rowid is being updated */
+){
+ i16 iIdxCol = pIdx->aiColumn[iCol];
+ assert( iIdxCol!=XN_ROWID ); /* Cannot index rowid */
+ if( iIdxCol>=0 ){
+ return aXRef[iIdxCol]>=0;
+ }
+ assert( iIdxCol==XN_EXPR );
+ assert( pIdx->aColExpr!=0 );
+ assert( pIdx->aColExpr->a[iCol].pExpr!=0 );
+ return sqlite3ExprReferencesUpdatedColumn(pIdx->aColExpr->a[iCol].pExpr,
+ aXRef,chngRowid);
+}
+
+/*
+** Check to see if index pIdx is a partial index whose conditional
+** expression might change values due to an UPDATE. Return true if
+** the index is subject to change and false if the index is guaranteed
+** to be unchanged. This is an optimization. False-positives are a
+** performance degradation, but false-negatives can result in a corrupt
+** index and incorrect answers.
+**
+** aXRef[j] will be non-negative if column j of the original table is
+** being updated. chngRowid will be true if the rowid of the table is
+** being updated.
+*/
+static int indexWhereClauseMightChange(
+ Index *pIdx, /* The index to check */
+ int *aXRef, /* aXRef[j]>=0 if column j is being updated */
+ int chngRowid /* true if the rowid is being updated */
+){
+ if( pIdx->pPartIdxWhere==0 ) return 0;
+ return sqlite3ExprReferencesUpdatedColumn(pIdx->pPartIdxWhere,
+ aXRef, chngRowid);
+}
+
/*
** Process an UPDATE statement.
**
@@ -131216,11 +133893,12 @@ SQLITE_PRIVATE void sqlite3Update(
Index *pIdx; /* For looping over indices */
Index *pPk; /* The PRIMARY KEY index for WITHOUT ROWID tables */
int nIdx; /* Number of indices that need updating */
+ int nAllIdx; /* Total number of indexes */
int iBaseCur; /* Base cursor number */
int iDataCur; /* Cursor for the canonical data btree */
int iIdxCur; /* Cursor for the first index */
sqlite3 *db; /* The database structure */
- int *aRegIdx = 0; /* First register in array assigned to each index */
+ int *aRegIdx = 0; /* Registers for to each index and the main table */
int *aXRef = 0; /* aXRef[i] is the index in pChanges->a[] of the
** an expression for the i-th column of the table.
** aXRef[i]==-1 if the i-th column is not changed. */
@@ -131334,10 +134012,10 @@ SQLITE_PRIVATE void sqlite3Update(
/* Allocate space for aXRef[], aRegIdx[], and aToOpen[].
** Initialize aXRef[] and aToOpen[] to their default values.
*/
- aXRef = sqlite3DbMallocRawNN(db, sizeof(int) * (pTab->nCol+nIdx) + nIdx+2 );
+ aXRef = sqlite3DbMallocRawNN(db, sizeof(int) * (pTab->nCol+nIdx+1) + nIdx+2 );
if( aXRef==0 ) goto update_cleanup;
aRegIdx = aXRef+pTab->nCol;
- aToOpen = (u8*)(aRegIdx+nIdx);
+ aToOpen = (u8*)(aRegIdx+nIdx+1);
memset(aToOpen, 1, nIdx+1);
aToOpen[nIdx+1] = 0;
for(i=0; inCol; i++) aXRef[i] = -1;
@@ -131414,33 +134092,32 @@ SQLITE_PRIVATE void sqlite3Update(
/* There is one entry in the aRegIdx[] array for each index on the table
** being updated. Fill in aRegIdx[] with a register number that will hold
** the key for accessing each index.
- **
- ** FIXME: Be smarter about omitting indexes that use expressions.
*/
- for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
+ if( onError==OE_Replace ) bReplace = 1;
+ for(nAllIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nAllIdx++){
int reg;
- if( chngKey || hasFK>1 || pIdx->pPartIdxWhere || pIdx==pPk ){
+ if( chngKey || hasFK>1 || pIdx==pPk
+ || indexWhereClauseMightChange(pIdx,aXRef,chngRowid)
+ ){
reg = ++pParse->nMem;
pParse->nMem += pIdx->nColumn;
}else{
reg = 0;
for(i=0; inKeyCol; i++){
- i16 iIdxCol = pIdx->aiColumn[i];
- if( iIdxCol<0 || aXRef[iIdxCol]>=0 ){
+ if( indexColumnIsBeingUpdated(pIdx, i, aXRef, chngRowid) ){
reg = ++pParse->nMem;
pParse->nMem += pIdx->nColumn;
- if( (onError==OE_Replace)
- || (onError==OE_Default && pIdx->onError==OE_Replace)
- ){
+ if( onError==OE_Default && pIdx->onError==OE_Replace ){
bReplace = 1;
}
break;
}
}
}
- if( reg==0 ) aToOpen[j+1] = 0;
- aRegIdx[j] = reg;
+ if( reg==0 ) aToOpen[nAllIdx+1] = 0;
+ aRegIdx[nAllIdx] = reg;
}
+ aRegIdx[nAllIdx] = ++pParse->nMem; /* Register storing the table record */
if( bReplace ){
/* If REPLACE conflict resolution might be invoked, open cursors on all
** indexes in case they are needed to delete records. */
@@ -131455,7 +134132,13 @@ SQLITE_PRIVATE void sqlite3Update(
/* Allocate required registers. */
if( !IsVirtual(pTab) ){
- regRowSet = ++pParse->nMem;
+ /* For now, regRowSet and aRegIdx[nAllIdx] share the same register.
+ ** If regRowSet turns out to be needed, then aRegIdx[nAllIdx] will be
+ ** reallocated. aRegIdx[nAllIdx] is the register in which the main
+ ** table record is written. regRowSet holds the RowSet for the
+ ** two-pass update algorithm. */
+ assert( aRegIdx[nAllIdx]==pParse->nMem );
+ regRowSet = aRegIdx[nAllIdx];
regOldRowid = regNewRowid = ++pParse->nMem;
if( chngPk || pTrigger || hasFK ){
regOld = pParse->nMem + 1;
@@ -131503,7 +134186,7 @@ SQLITE_PRIVATE void sqlite3Update(
#endif
/* Jump to labelBreak to abandon further processing of this UPDATE */
- labelContinue = labelBreak = sqlite3VdbeMakeLabel(v);
+ labelContinue = labelBreak = sqlite3VdbeMakeLabel(pParse);
/* Not an UPSERT. Normal processing. Begin by
** initialize the count of updated rows */
@@ -131585,6 +134268,8 @@ SQLITE_PRIVATE void sqlite3Update(
** leave it in register regOldRowid. */
sqlite3VdbeAddOp2(v, OP_Rowid, iDataCur, regOldRowid);
if( eOnePass==ONEPASS_OFF ){
+ /* We need to use regRowSet, so reallocate aRegIdx[nAllIdx] */
+ aRegIdx[nAllIdx] = ++pParse->nMem;
sqlite3VdbeAddOp2(v, OP_RowSetAdd, regRowSet, regOldRowid);
}
}else{
@@ -131638,13 +134323,13 @@ SQLITE_PRIVATE void sqlite3Update(
VdbeCoverage(v);
}
if( eOnePass!=ONEPASS_SINGLE ){
- labelContinue = sqlite3VdbeMakeLabel(v);
+ labelContinue = sqlite3VdbeMakeLabel(pParse);
}
sqlite3VdbeAddOp2(v, OP_IsNull, pPk ? regKey : regOldRowid, labelBreak);
VdbeCoverageIf(v, pPk==0);
VdbeCoverageIf(v, pPk!=0);
}else if( pPk ){
- labelContinue = sqlite3VdbeMakeLabel(v);
+ labelContinue = sqlite3VdbeMakeLabel(pParse);
sqlite3VdbeAddOp2(v, OP_Rewind, iEph, labelBreak); VdbeCoverage(v);
addrTop = sqlite3VdbeAddOp2(v, OP_RowData, iEph, regKey);
sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelContinue, regKey, 0);
@@ -131768,28 +134453,30 @@ SQLITE_PRIVATE void sqlite3Update(
}
if( !isView ){
- int addr1 = 0; /* Address of jump instruction */
-
/* Do constraint checks. */
assert( regOldRowid>0 );
sqlite3GenerateConstraintChecks(pParse, pTab, aRegIdx, iDataCur, iIdxCur,
regNewRowid, regOldRowid, chngKey, onError, labelContinue, &bReplace,
aXRef, 0);
+ /* If REPLACE conflict handling may have been used, or if the PK of the
+ ** row is changing, then the GenerateConstraintChecks() above may have
+ ** moved cursor iDataCur. Reseek it. */
+ if( bReplace || chngKey ){
+ if( pPk ){
+ sqlite3VdbeAddOp4Int(v, OP_NotFound,iDataCur,labelContinue,regKey,nKey);
+ }else{
+ sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue,regOldRowid);
+ }
+ VdbeCoverageNeverTaken(v);
+ }
+
/* Do FK constraint checks. */
if( hasFK ){
sqlite3FkCheck(pParse, pTab, regOldRowid, 0, aXRef, chngKey);
}
/* Delete the index entries associated with the current record. */
- if( bReplace || chngKey ){
- if( pPk ){
- addr1 = sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, 0, regKey, nKey);
- }else{
- addr1 = sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, 0, regOldRowid);
- }
- VdbeCoverageNeverTaken(v);
- }
sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur, aRegIdx, -1);
/* If changing the rowid value, or if there are foreign key constraints
@@ -131819,9 +134506,6 @@ SQLITE_PRIVATE void sqlite3Update(
sqlite3VdbeAddOp2(v, OP_Delete, iDataCur, 0);
}
#endif
- if( bReplace || chngKey ){
- sqlite3VdbeJumpHere(v, addr1);
- }
if( hasFK ){
sqlite3FkCheck(pParse, pTab, 0, regNewRowid, aXRef, chngKey);
@@ -131975,7 +134659,7 @@ static void updateVirtualTable(
sqlite3ExprCode(pParse, pChanges->a[aXRef[i]].pExpr, regArg+2+i);
}else{
sqlite3VdbeAddOp3(v, OP_VColumn, iCsr, i, regArg+2+i);
- sqlite3VdbeChangeP5(v, 1); /* Enable sqlite3_vtab_nochange() */
+ sqlite3VdbeChangeP5(v, OPFLAG_NOCHNG);/* Enable sqlite3_vtab_nochange() */
}
}
if( HasRowid(pTab) ){
@@ -132260,6 +134944,7 @@ SQLITE_PRIVATE void sqlite3UpsertDoUpdate(
sqlite3 *db = pParse->db;
SrcList *pSrc; /* FROM clause for the UPDATE */
int iDataCur;
+ int i;
assert( v!=0 );
assert( pUpsert!=0 );
@@ -132276,7 +134961,6 @@ SQLITE_PRIVATE void sqlite3UpsertDoUpdate(
Index *pPk = sqlite3PrimaryKeyIndex(pTab);
int nPk = pPk->nKeyCol;
int iPk = pParse->nMem+1;
- int i;
pParse->nMem += nPk;
for(i=0; ipUpsertSrc, 0);
+ /* excluded.* columns of type REAL need to be converted to a hard real */
+ for(i=0; inCol; i++){
+ if( pTab->aCol[i].affinity==SQLITE_AFF_REAL ){
+ sqlite3VdbeAddOp1(v, OP_RealAffinity, pUpsert->regData+i);
+ }
+ }
sqlite3Update(pParse, pSrc, pUpsert->pUpsertSet,
pUpsert->pUpsertWhere, OE_Abort, 0, 0, pUpsert);
pUpsert->pUpsertSet = 0; /* Will have been deleted by sqlite3Update() */
@@ -132412,16 +135102,17 @@ static int execSqlF(sqlite3 *db, char **pzErrMsg, const char *zSql, ...){
** transient would cause the database file to appear to be deleted
** following reboot.
*/
-SQLITE_PRIVATE void sqlite3Vacuum(Parse *pParse, Token *pNm){
+SQLITE_PRIVATE void sqlite3Vacuum(Parse *pParse, Token *pNm, Expr *pInto){
Vdbe *v = sqlite3GetVdbe(pParse);
int iDb = 0;
- if( v==0 ) return;
+ if( v==0 ) goto build_vacuum_end;
+ if( pParse->nErr ) goto build_vacuum_end;
if( pNm ){
#ifndef SQLITE_BUG_COMPATIBLE_20160819
/* Default behavior: Report an error if the argument to VACUUM is
** not recognized */
iDb = sqlite3TwoPartName(pParse, pNm, pNm, &pNm);
- if( iDb<0 ) return;
+ if( iDb<0 ) goto build_vacuum_end;
#else
/* When SQLITE_BUG_COMPATIBLE_20160819 is defined, unrecognized arguments
** to VACUUM are silently ignored. This is a back-out of a bug fix that
@@ -132433,37 +135124,63 @@ SQLITE_PRIVATE void sqlite3Vacuum(Parse *pParse, Token *pNm){
#endif
}
if( iDb!=1 ){
- sqlite3VdbeAddOp1(v, OP_Vacuum, iDb);
+ int iIntoReg = 0;
+ if( pInto && sqlite3ResolveSelfReference(pParse,0,0,pInto,0)==0 ){
+ iIntoReg = ++pParse->nMem;
+ sqlite3ExprCode(pParse, pInto, iIntoReg);
+ }
+ sqlite3VdbeAddOp2(v, OP_Vacuum, iDb, iIntoReg);
sqlite3VdbeUsesBtree(v, iDb);
}
+build_vacuum_end:
+ sqlite3ExprDelete(pParse->db, pInto);
return;
}
/*
** This routine implements the OP_Vacuum opcode of the VDBE.
*/
-SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){
+SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3RunVacuum(
+ char **pzErrMsg, /* Write error message here */
+ sqlite3 *db, /* Database connection */
+ int iDb, /* Which attached DB to vacuum */
+ sqlite3_value *pOut /* Write results here, if not NULL. VACUUM INTO */
+){
int rc = SQLITE_OK; /* Return code from service routines */
Btree *pMain; /* The database being vacuumed */
Btree *pTemp; /* The temporary database we vacuum into */
- u16 saved_mDbFlags; /* Saved value of db->mDbFlags */
- u32 saved_flags; /* Saved value of db->flags */
+ u32 saved_mDbFlags; /* Saved value of db->mDbFlags */
+ u64 saved_flags; /* Saved value of db->flags */
int saved_nChange; /* Saved value of db->nChange */
int saved_nTotalChange; /* Saved value of db->nTotalChange */
+ u32 saved_openFlags; /* Saved value of db->openFlags */
u8 saved_mTrace; /* Saved trace settings */
Db *pDb = 0; /* Database to detach at end of vacuum */
int isMemDb; /* True if vacuuming a :memory: database */
int nRes; /* Bytes of reserved space at the end of each page */
int nDb; /* Number of attached databases */
const char *zDbMain; /* Schema name of database to vacuum */
+ const char *zOut; /* Name of output file */
if( !db->autoCommit ){
sqlite3SetString(pzErrMsg, db, "cannot VACUUM from within a transaction");
- return SQLITE_ERROR;
+ return SQLITE_ERROR; /* IMP: R-12218-18073 */
}
if( db->nVdbeActive>1 ){
sqlite3SetString(pzErrMsg, db,"cannot VACUUM - SQL statements in progress");
- return SQLITE_ERROR;
+ return SQLITE_ERROR; /* IMP: R-15610-35227 */
+ }
+ saved_openFlags = db->openFlags;
+ if( pOut ){
+ if( sqlite3_value_type(pOut)!=SQLITE_TEXT ){
+ sqlite3SetString(pzErrMsg, db, "non-text filename");
+ return SQLITE_ERROR;
+ }
+ zOut = (const char*)sqlite3_value_text(pOut);
+ db->openFlags &= ~SQLITE_OPEN_READONLY;
+ db->openFlags |= SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE;
+ }else{
+ zOut = "";
}
/* Save the current value of the database flags so that it can be
@@ -132476,7 +135193,8 @@ SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){
saved_mTrace = db->mTrace;
db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;
db->mDbFlags |= DBFLAG_PreferBuiltin | DBFLAG_Vacuum;
- db->flags &= ~(SQLITE_ForeignKeys | SQLITE_ReverseOrder | SQLITE_CountRows);
+ db->flags &= ~(u64)(SQLITE_ForeignKeys | SQLITE_ReverseOrder
+ | SQLITE_Defensive | SQLITE_CountRows);
db->mTrace = 0;
zDbMain = db->aDb[iDb].zDbSName;
@@ -132498,19 +135216,23 @@ SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){
** to write the journal header file.
*/
nDb = db->nDb;
- rc = execSql(db, pzErrMsg, "ATTACH''AS vacuum_db");
+ rc = execSqlF(db, pzErrMsg, "ATTACH %Q AS vacuum_db", zOut);
+ db->openFlags = saved_openFlags;
if( rc!=SQLITE_OK ) goto end_of_vacuum;
assert( (db->nDb-1)==nDb );
pDb = &db->aDb[nDb];
assert( strcmp(pDb->zDbSName,"vacuum_db")==0 );
pTemp = pDb->pBt;
-
- /* The call to execSql() to attach the temp database has left the file
- ** locked (as there was more than one active statement when the transaction
- ** to read the schema was concluded. Unlock it here so that this doesn't
- ** cause problems for the call to BtreeSetPageSize() below. */
- sqlite3BtreeCommit(pTemp);
-
+ if( pOut ){
+ sqlite3_file *id = sqlite3PagerFile(sqlite3BtreePager(pTemp));
+ i64 sz = 0;
+ if( id->pMethods!=0 && (sqlite3OsFileSize(id, &sz)!=SQLITE_OK || sz>0) ){
+ rc = SQLITE_ERROR;
+ sqlite3SetString(pzErrMsg, db, "output file already exists");
+ goto end_of_vacuum;
+ }
+ db->mDbFlags |= DBFLAG_VacuumInto;
+ }
nRes = sqlite3BtreeGetOptimalReserve(pMain);
/* A VACUUM cannot change the pagesize of an encrypted database. */
@@ -132534,7 +135256,7 @@ SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){
*/
rc = execSql(db, pzErrMsg, "BEGIN");
if( rc!=SQLITE_OK ) goto end_of_vacuum;
- rc = sqlite3BtreeBeginTrans(pMain, 2, 0);
+ rc = sqlite3BtreeBeginTrans(pMain, pOut==0 ? 2 : 0, 0);
if( rc!=SQLITE_OK ) goto end_of_vacuum;
/* Do not attempt to change the page size for a WAL database */
@@ -132629,7 +135351,7 @@ SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){
};
assert( 1==sqlite3BtreeIsInTrans(pTemp) );
- assert( 1==sqlite3BtreeIsInTrans(pMain) );
+ assert( pOut!=0 || 1==sqlite3BtreeIsInTrans(pMain) );
/* Copy Btree meta values */
for(i=0; iflags */
@@ -132722,6 +135450,9 @@ struct VtabCtx {
** Construct and install a Module object for a virtual table. When this
** routine is called, it is guaranteed that all appropriate locks are held
** and the module is not already part of the connection.
+**
+** If there already exists a module with zName, replace it with the new one.
+** If pModule==0, then delete the module zName if it exists.
*/
SQLITE_PRIVATE Module *sqlite3VtabCreateModule(
sqlite3 *db, /* Database in which module is registered */
@@ -132731,25 +135462,36 @@ SQLITE_PRIVATE Module *sqlite3VtabCreateModule(
void (*xDestroy)(void *) /* Module destructor function */
){
Module *pMod;
- int nName = sqlite3Strlen30(zName);
- pMod = (Module *)sqlite3Malloc(sizeof(Module) + nName + 1);
- if( pMod==0 ){
- sqlite3OomFault(db);
+ Module *pDel;
+ char *zCopy;
+ if( pModule==0 ){
+ zCopy = (char*)zName;
+ pMod = 0;
}else{
- Module *pDel;
- char *zCopy = (char *)(&pMod[1]);
+ int nName = sqlite3Strlen30(zName);
+ pMod = (Module *)sqlite3Malloc(sizeof(Module) + nName + 1);
+ if( pMod==0 ){
+ sqlite3OomFault(db);
+ return 0;
+ }
+ zCopy = (char *)(&pMod[1]);
memcpy(zCopy, zName, nName+1);
pMod->zName = zCopy;
pMod->pModule = pModule;
pMod->pAux = pAux;
pMod->xDestroy = xDestroy;
pMod->pEpoTab = 0;
- pDel = (Module *)sqlite3HashInsert(&db->aModule,zCopy,(void*)pMod);
- assert( pDel==0 || pDel==pMod );
- if( pDel ){
+ pMod->nRefModule = 1;
+ }
+ pDel = (Module *)sqlite3HashInsert(&db->aModule,zCopy,(void*)pMod);
+ if( pDel ){
+ if( pDel==pMod ){
sqlite3OomFault(db);
sqlite3DbFree(db, pDel);
pMod = 0;
+ }else{
+ sqlite3VtabEponymousTableClear(db, pDel);
+ sqlite3VtabModuleUnref(db, pDel);
}
}
return pMod;
@@ -132770,11 +135512,7 @@ static int createModule(
int rc = SQLITE_OK;
sqlite3_mutex_enter(db->mutex);
- if( sqlite3HashFind(&db->aModule, zName) ){
- rc = SQLITE_MISUSE_BKPT;
- }else{
- (void)sqlite3VtabCreateModule(db, zName, pModule, pAux, xDestroy);
- }
+ (void)sqlite3VtabCreateModule(db, zName, pModule, pAux, xDestroy);
rc = sqlite3ApiExit(db, rc);
if( rc!=SQLITE_OK && xDestroy ) xDestroy(pAux);
sqlite3_mutex_leave(db->mutex);
@@ -132813,6 +135551,44 @@ SQLITE_API int sqlite3_create_module_v2(
return createModule(db, zName, pModule, pAux, xDestroy);
}
+/*
+** External API to drop all virtual-table modules, except those named
+** on the azNames list.
+*/
+SQLITE_API int sqlite3_drop_modules(sqlite3 *db, const char** azNames){
+ HashElem *pThis, *pNext;
+#ifdef SQLITE_ENABLE_API_ARMOR
+ if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
+#endif
+ for(pThis=sqliteHashFirst(&db->aModule); pThis; pThis=pNext){
+ Module *pMod = (Module*)sqliteHashData(pThis);
+ pNext = sqliteHashNext(pThis);
+ if( azNames ){
+ int ii;
+ for(ii=0; azNames[ii]!=0 && strcmp(azNames[ii],pMod->zName)!=0; ii++){}
+ if( azNames[ii]!=0 ) continue;
+ }
+ createModule(db, pMod->zName, 0, 0, 0);
+ }
+ return SQLITE_OK;
+}
+
+/*
+** Decrement the reference count on a Module object. Destroy the
+** module when the reference count reaches zero.
+*/
+SQLITE_PRIVATE void sqlite3VtabModuleUnref(sqlite3 *db, Module *pMod){
+ assert( pMod->nRefModule>0 );
+ pMod->nRefModule--;
+ if( pMod->nRefModule==0 ){
+ if( pMod->xDestroy ){
+ pMod->xDestroy(pMod->pAux);
+ }
+ assert( pMod->pEpoTab==0 );
+ sqlite3DbFree(db, pMod);
+ }
+}
+
/*
** Lock the virtual table so that it cannot be disconnected.
** Locks nest. Every lock should have a corresponding unlock.
@@ -132852,6 +135628,7 @@ SQLITE_PRIVATE void sqlite3VtabUnlock(VTable *pVTab){
pVTab->nRef--;
if( pVTab->nRef==0 ){
sqlite3_vtab *p = pVTab->pVtab;
+ sqlite3VtabModuleUnref(pVTab->db, pVTab->pMod);
if( p ){
p->pModule->xDisconnect(p);
}
@@ -132992,9 +135769,13 @@ SQLITE_PRIVATE void sqlite3VtabClear(sqlite3 *db, Table *p){
** string will be freed automatically when the table is
** deleted.
*/
-static void addModuleArgument(sqlite3 *db, Table *pTable, char *zArg){
- int nBytes = sizeof(char *)*(2+pTable->nModuleArg);
+static void addModuleArgument(Parse *pParse, Table *pTable, char *zArg){
+ sqlite3_int64 nBytes = sizeof(char *)*(2+pTable->nModuleArg);
char **azModuleArg;
+ sqlite3 *db = pParse->db;
+ if( pTable->nModuleArg+3>=db->aLimit[SQLITE_LIMIT_COLUMN] ){
+ sqlite3ErrorMsg(pParse, "too many columns on %s", pTable->zName);
+ }
azModuleArg = sqlite3DbRealloc(db, pTable->azModuleArg, nBytes);
if( azModuleArg==0 ){
sqlite3DbFree(db, zArg);
@@ -133018,7 +135799,6 @@ SQLITE_PRIVATE void sqlite3VtabBeginParse(
Token *pModuleName, /* Name of the module for the virtual table */
int ifNotExists /* No error if the table already exists */
){
- int iDb; /* The database the table is being created in */
Table *pTable; /* The new virtual table */
sqlite3 *db; /* Database connection */
@@ -133028,13 +135808,11 @@ SQLITE_PRIVATE void sqlite3VtabBeginParse(
assert( 0==pTable->pIndex );
db = pParse->db;
- iDb = sqlite3SchemaToIndex(db, pTable->pSchema);
- assert( iDb>=0 );
assert( pTable->nModuleArg==0 );
- addModuleArgument(db, pTable, sqlite3NameFromToken(db, pModuleName));
- addModuleArgument(db, pTable, 0);
- addModuleArgument(db, pTable, sqlite3DbStrDup(db, pTable->zName));
+ addModuleArgument(pParse, pTable, sqlite3NameFromToken(db, pModuleName));
+ addModuleArgument(pParse, pTable, 0);
+ addModuleArgument(pParse, pTable, sqlite3DbStrDup(db, pTable->zName));
assert( (pParse->sNameToken.z==pName2->z && pName2->z!=0)
|| (pParse->sNameToken.z==pName1->z && pName2->z==0)
);
@@ -133049,6 +135827,8 @@ SQLITE_PRIVATE void sqlite3VtabBeginParse(
** The second call, to obtain permission to create the table, is made now.
*/
if( pTable->azModuleArg ){
+ int iDb = sqlite3SchemaToIndex(db, pTable->pSchema);
+ assert( iDb>=0 ); /* The database the table is being created in */
sqlite3AuthCheck(pParse, SQLITE_CREATE_VTABLE, pTable->zName,
pTable->azModuleArg[0], pParse->db->aDb[iDb].zDbSName);
}
@@ -133065,7 +135845,7 @@ static void addArgumentToVtab(Parse *pParse){
const char *z = (const char*)pParse->sArg.z;
int n = pParse->sArg.n;
sqlite3 *db = pParse->db;
- addModuleArgument(db, pParse->pNewTable, sqlite3DbStrNDup(db, z, n));
+ addModuleArgument(pParse, pParse->pNewTable, sqlite3DbStrNDup(db, z, n));
}
}
@@ -133253,6 +136033,7 @@ static int vtabCallConstructor(
** the sqlite3_vtab object if successful. */
memset(pVTable->pVtab, 0, sizeof(pVTable->pVtab[0]));
pVTable->pVtab->pModule = pMod->pModule;
+ pMod->nRefModule++;
pVTable->nRef = 1;
if( sCtx.bDeclared==0 ){
const char *zFormat = "vtable constructor did not declare schema: %s";
@@ -133354,7 +136135,8 @@ static int growVTrans(sqlite3 *db){
/* Grow the sqlite3.aVTrans array if required */
if( (db->nVTrans%ARRAY_INCR)==0 ){
VTable **aVTrans;
- int nBytes = sizeof(sqlite3_vtab *) * (db->nVTrans + ARRAY_INCR);
+ sqlite3_int64 nBytes = sizeof(sqlite3_vtab*)*
+ ((sqlite3_int64)db->nVTrans + ARRAY_INCR);
aVTrans = sqlite3DbRealloc(db, (void *)db->aVTrans, nBytes);
if( !aVTrans ){
return SQLITE_NOMEM_BKPT;
@@ -133527,6 +136309,7 @@ SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab
p = vtabDisconnectAll(db, pTab);
xDestroy = p->pMod->pModule->xDestroy;
assert( xDestroy!=0 ); /* Checked before the virtual table is created */
+ pTab->nTabRef++;
rc = xDestroy(p->pVtab);
/* Remove the sqlite3_vtab* from the aVTrans[] array, if applicable */
if( rc==SQLITE_OK ){
@@ -133535,6 +136318,7 @@ SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab
pTab->pVTable = 0;
sqlite3VtabUnlock(p);
}
+ sqlite3DeleteTable(db, pTab);
}
return rc;
@@ -133692,6 +136476,7 @@ SQLITE_PRIVATE int sqlite3VtabSavepoint(sqlite3 *db, int op, int iSavepoint){
const sqlite3_module *pMod = pVTab->pMod->pModule;
if( pVTab->pVtab && pMod->iVersion>=2 ){
int (*xMethod)(sqlite3_vtab *, int);
+ sqlite3VtabLock(pVTab);
switch( op ){
case SAVEPOINT_BEGIN:
xMethod = pMod->xSavepoint;
@@ -133707,6 +136492,7 @@ SQLITE_PRIVATE int sqlite3VtabSavepoint(sqlite3 *db, int op, int iSavepoint){
if( xMethod && pVTab->iSavepoint>iSavepoint ){
rc = xMethod(pVTab->pVtab, iSavepoint);
}
+ sqlite3VtabUnlock(pVTab);
}
}
}
@@ -133743,7 +136529,7 @@ SQLITE_PRIVATE FuncDef *sqlite3VtabOverloadFunction(
/* Check to see the left operand is a column in a virtual table */
if( NEVER(pExpr==0) ) return pDef;
if( pExpr->op!=TK_COLUMN ) return pDef;
- pTab = pExpr->pTab;
+ pTab = pExpr->y.pTab;
if( pTab==0 ) return pDef;
if( !IsVirtual(pTab) ) return pDef;
pVtab = sqlite3GetVTable(db, pTab)->pVtab;
@@ -133848,9 +136634,9 @@ SQLITE_PRIVATE int sqlite3VtabEponymousTableInit(Parse *pParse, Module *pMod){
pTab->pSchema = db->aDb[0].pSchema;
assert( pTab->nModuleArg==0 );
pTab->iPKey = -1;
- addModuleArgument(db, pTab, sqlite3DbStrDup(db, pTab->zName));
- addModuleArgument(db, pTab, 0);
- addModuleArgument(db, pTab, sqlite3DbStrDup(db, pTab->zName));
+ addModuleArgument(pParse, pTab, sqlite3DbStrDup(db, pTab->zName));
+ addModuleArgument(pParse, pTab, 0);
+ addModuleArgument(pParse, pTab, sqlite3DbStrDup(db, pTab->zName));
rc = vtabCallConstructor(db, pTab, pMod, pModule->xConnect, &zErr);
if( rc ){
sqlite3ErrorMsg(pParse, "%s", zErr);
@@ -133975,6 +136761,8 @@ SQLITE_API int sqlite3_vtab_config(sqlite3 *db, int op, ...){
** planner logic in "where.c". These definitions are broken out into
** a separate source file for easier editing.
*/
+#ifndef SQLITE_WHEREINT_H
+#define SQLITE_WHEREINT_H
/*
** Trace output macros
@@ -134030,13 +136818,15 @@ struct WhereLevel {
int addrCont; /* Jump here to continue with the next loop cycle */
int addrFirst; /* First instruction of interior of the loop */
int addrBody; /* Beginning of the body of this loop */
+ int regBignull; /* big-null flag reg. True if a NULL-scan is needed */
+ int addrBignull; /* Jump here for next part of big-null scan */
#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
u32 iLikeRepCntr; /* LIKE range processing counter register (times 2) */
int addrLikeRep; /* LIKE range processing address */
#endif
u8 iFrom; /* Which entry in the FROM clause */
u8 op, p3, p5; /* Opcode, P3 & P5 of the opcode that ends the loop */
- int p1, p2; /* Operands of the opcode used to ends the loop */
+ int p1, p2; /* Operands of the opcode used to end the loop */
union { /* Information that depends on pWLoop->wsFlags */
struct {
int nIn; /* Number of entries in aInLoop[] */
@@ -134087,7 +136877,7 @@ struct WhereLoop {
u16 nEq; /* Number of equality constraints */
u16 nBtm; /* Size of BTM vector */
u16 nTop; /* Size of TOP vector */
- u16 nIdxCol; /* Index column used for ORDER BY */
+ u16 nDistinctCol; /* Index columns used to sort for DISTINCT */
Index *pIndex; /* Index used, or NULL */
} btree;
struct { /* Information for virtual tables */
@@ -134238,16 +137028,17 @@ struct WhereTerm {
#define TERM_ORINFO 0x10 /* Need to free the WhereTerm.u.pOrInfo object */
#define TERM_ANDINFO 0x20 /* Need to free the WhereTerm.u.pAndInfo obj */
#define TERM_OR_OK 0x40 /* Used during OR-clause processing */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
# define TERM_VNULL 0x80 /* Manufactured x>NULL or x<=NULL term */
#else
-# define TERM_VNULL 0x00 /* Disabled if not using stat3 */
+# define TERM_VNULL 0x00 /* Disabled if not using stat4 */
#endif
#define TERM_LIKEOPT 0x100 /* Virtual terms from the LIKE optimization */
#define TERM_LIKECOND 0x200 /* Conditionally this LIKE operator term */
#define TERM_LIKE 0x400 /* The original LIKE operator */
#define TERM_IS 0x800 /* Term.pExpr is an IS operator */
#define TERM_VARSELECT 0x1000 /* Term.pExpr contains a correlated sub-query */
+#define TERM_NOPARTIDX 0x2000 /* Not for use to enable a partial index */
/*
** An instance of the WhereScan object is used as an iterator for locating
@@ -134358,17 +137149,38 @@ struct WhereLoopBuilder {
ExprList *pOrderBy; /* ORDER BY clause */
WhereLoop *pNew; /* Template WhereLoop */
WhereOrSet *pOrSet; /* Record best loops here, if not NULL */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
UnpackedRecord *pRec; /* Probe for stat4 (if required) */
int nRecValid; /* Number of valid fields currently in pRec */
#endif
unsigned int bldFlags; /* SQLITE_BLDF_* flags */
+ unsigned int iPlanLimit; /* Search limiter */
};
/* Allowed values for WhereLoopBuider.bldFlags */
#define SQLITE_BLDF_INDEXED 0x0001 /* An index is used */
#define SQLITE_BLDF_UNIQUE 0x0002 /* All keys of a UNIQUE index used */
+/* The WhereLoopBuilder.iPlanLimit is used to limit the number of
+** index+constraint combinations the query planner will consider for a
+** particular query. If this parameter is unlimited, then certain
+** pathological queries can spend excess time in the sqlite3WhereBegin()
+** routine. The limit is high enough that is should not impact real-world
+** queries.
+**
+** SQLITE_QUERY_PLANNER_LIMIT is the baseline limit. The limit is
+** increased by SQLITE_QUERY_PLANNER_LIMIT_INCR before each term of the FROM
+** clause is processed, so that every table in a join is guaranteed to be
+** able to propose a some index+constraint combinations even if the initial
+** baseline limit was exhausted by prior tables of the join.
+*/
+#ifndef SQLITE_QUERY_PLANNER_LIMIT
+# define SQLITE_QUERY_PLANNER_LIMIT 20000
+#endif
+#ifndef SQLITE_QUERY_PLANNER_LIMIT_INCR
+# define SQLITE_QUERY_PLANNER_LIMIT_INCR 1000
+#endif
+
/*
** The WHERE clause processing routine has two halves. The
** first part does the start of the WHERE loop and the second
@@ -134447,8 +137259,11 @@ SQLITE_PRIVATE void sqlite3WhereAddScanStatus(
# define sqlite3WhereAddScanStatus(a, b, c, d) ((void)d)
#endif
SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
+ Parse *pParse, /* Parsing context */
+ Vdbe *v, /* Prepared statement under construction */
WhereInfo *pWInfo, /* Complete information about the WHERE clause */
int iLevel, /* Which level of pWInfo->a[] should be coded */
+ WhereLevel *pLevel, /* The current level pointer */
Bitmask notReady /* Which tables are currently available */
);
@@ -134521,6 +137336,9 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs(Parse*, struct SrcList_item*, WhereC
#define WHERE_UNQ_WANTED 0x00010000 /* WHERE_ONEROW would have been helpful*/
#define WHERE_PARTIALIDX 0x00020000 /* The automatic index is partial */
#define WHERE_IN_EARLYOUT 0x00040000 /* Perhaps quit IN loops early */
+#define WHERE_BIGNULL_SORT 0x00080000 /* Column nEq of index is BIGNULL */
+
+#endif /* !defined(SQLITE_WHEREINT_H) */
/************** End of whereInt.h ********************************************/
/************** Continuing where we left off in wherecode.c ******************/
@@ -134718,6 +137536,7 @@ SQLITE_PRIVATE int sqlite3WhereExplainOneScan(
}
#endif
zMsg = sqlite3StrAccumFinish(&str);
+ sqlite3ExplainBreakpoint("",zMsg);
ret = sqlite3VdbeAddOp4(v, OP_Explain, sqlite3VdbeCurrentAddr(v),
pParse->addrExplain, 0, zMsg,P4_DYNAMIC);
}
@@ -134822,9 +137641,9 @@ static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){
** Code an OP_Affinity opcode to apply the column affinity string zAff
** to the n registers starting at base.
**
-** As an optimization, SQLITE_AFF_BLOB entries (which are no-ops) at the
-** beginning and end of zAff are ignored. If all entries in zAff are
-** SQLITE_AFF_BLOB, then no code gets generated.
+** As an optimization, SQLITE_AFF_BLOB and SQLITE_AFF_NONE entries (which
+** are no-ops) at the beginning and end of zAff are ignored. If all entries
+** in zAff are SQLITE_AFF_BLOB or SQLITE_AFF_NONE, then no code gets generated.
**
** This routine makes its own copy of zAff so that the caller is free
** to modify zAff after this routine returns.
@@ -134837,15 +137656,16 @@ static void codeApplyAffinity(Parse *pParse, int base, int n, char *zAff){
}
assert( v!=0 );
- /* Adjust base and n to skip over SQLITE_AFF_BLOB entries at the beginning
- ** and end of the affinity string.
+ /* Adjust base and n to skip over SQLITE_AFF_BLOB and SQLITE_AFF_NONE
+ ** entries at the beginning and end of the affinity string.
*/
- while( n>0 && zAff[0]==SQLITE_AFF_BLOB ){
+ assert( SQLITE_AFF_NONE0 && zAff[0]<=SQLITE_AFF_BLOB ){
n--;
base++;
zAff++;
}
- while( n>1 && zAff[n-1]==SQLITE_AFF_BLOB ){
+ while( n>1 && zAff[n-1]<=SQLITE_AFF_BLOB ){
n--;
}
@@ -134930,7 +137750,7 @@ static Expr *removeUnindexableInClauseTerms(
for(i=iEq; inLTerm; i++){
if( pLoop->aLTerm[i]->pExpr==pX ){
int iField = pLoop->aLTerm[i]->iField - 1;
- assert( pOrigRhs->a[iField].pExpr!=0 );
+ if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */
pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
pOrigRhs->a[iField].pExpr = 0;
assert( pOrigLhs->a[iField].pExpr!=0 );
@@ -135043,16 +137863,17 @@ static int codeEqualityTerm(
if( pLoop->aLTerm[i]->pExpr==pX ) nEq++;
}
+ iTab = 0;
if( (pX->flags & EP_xIsSelect)==0 || pX->x.pSelect->pEList->nExpr==1 ){
- eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, 0);
+ eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, 0, &iTab);
}else{
sqlite3 *db = pParse->db;
pX = removeUnindexableInClauseTerms(pParse, iEq, pLoop, pX);
if( !db->mallocFailed ){
aiMap = (int*)sqlite3DbMallocZero(pParse->db, sizeof(int)*nEq);
- eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, aiMap);
- pTerm->pExpr->iTable = pX->iTable;
+ eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, aiMap, &iTab);
+ pTerm->pExpr->iTable = iTab;
}
sqlite3ExprDelete(db, pX);
pX = pTerm->pExpr;
@@ -135062,7 +137883,6 @@ static int codeEqualityTerm(
testcase( bRev );
bRev = !bRev;
}
- iTab = pX->iTable;
sqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iTab, 0);
VdbeCoverageIf(v, bRev);
VdbeCoverageIf(v, !bRev);
@@ -135070,7 +137890,7 @@ static int codeEqualityTerm(
pLoop->wsFlags |= WHERE_IN_ABLE;
if( pLevel->u.in.nIn==0 ){
- pLevel->addrNxt = sqlite3VdbeMakeLabel(v);
+ pLevel->addrNxt = sqlite3VdbeMakeLabel(pParse);
}
i = pLevel->u.in.nIn;
@@ -135086,7 +137906,6 @@ static int codeEqualityTerm(
if( pLoop->aLTerm[i]->pExpr==pX ){
int iOut = iReg + i - iEq;
if( eType==IN_INDEX_ROWID ){
- testcase( nEq>1 ); /* Happens with a UNIQUE index on ROWID */
pIn->addrInTop = sqlite3VdbeAddOp2(v, OP_Rowid, iTab, iOut);
}else{
int iCol = aiMap ? aiMap[iMap++] : 0;
@@ -135504,7 +138323,7 @@ static void codeCursorHint(
}
/* If we survive all prior tests, that means this term is worth hinting */
- pExpr = sqlite3ExprAnd(db, pExpr, sqlite3ExprDup(db, pTerm->pExpr, 0));
+ pExpr = sqlite3ExprAnd(pParse, pExpr, sqlite3ExprDup(db, pTerm->pExpr, 0));
}
if( pExpr!=0 ){
sWalker.xExprCallback = codeCursorHintFixExpr;
@@ -135581,7 +138400,9 @@ static void codeExprOrVector(Parse *pParse, Expr *p, int iReg, int nReg){
#ifndef SQLITE_OMIT_SUBQUERY
if( (p->flags & EP_xIsSelect) ){
Vdbe *v = pParse->pVdbe;
- int iSelect = sqlite3CodeSubselect(pParse, p, 0, 0);
+ int iSelect;
+ assert( p->op==TK_SELECT );
+ iSelect = sqlite3CodeSubselect(pParse, p);
sqlite3VdbeAddOp3(v, OP_Copy, iSelect, iReg, nReg-1);
}else
#endif
@@ -135619,10 +138440,11 @@ typedef struct IdxExprTrans {
static int whereIndexExprTransNode(Walker *p, Expr *pExpr){
IdxExprTrans *pX = p->u.pIdxTrans;
if( sqlite3ExprCompare(0, pExpr, pX->pIdxExpr, pX->iTabCur)==0 ){
+ pExpr->affExpr = sqlite3ExprAffinity(pExpr);
pExpr->op = TK_COLUMN;
pExpr->iTable = pX->iIdxCur;
pExpr->iColumn = pX->iIdxCol;
- pExpr->pTab = 0;
+ pExpr->y.pTab = 0;
return WRC_Prune;
}else{
return WRC_Continue;
@@ -135662,27 +138484,54 @@ static void whereIndexExprTrans(
}
}
+/*
+** The pTruth expression is always true because it is the WHERE clause
+** a partial index that is driving a query loop. Look through all of the
+** WHERE clause terms on the query, and if any of those terms must be
+** true because pTruth is true, then mark those WHERE clause terms as
+** coded.
+*/
+static void whereApplyPartialIndexConstraints(
+ Expr *pTruth,
+ int iTabCur,
+ WhereClause *pWC
+){
+ int i;
+ WhereTerm *pTerm;
+ while( pTruth->op==TK_AND ){
+ whereApplyPartialIndexConstraints(pTruth->pLeft, iTabCur, pWC);
+ pTruth = pTruth->pRight;
+ }
+ for(i=0, pTerm=pWC->a; inTerm; i++, pTerm++){
+ Expr *pExpr;
+ if( pTerm->wtFlags & TERM_CODED ) continue;
+ pExpr = pTerm->pExpr;
+ if( sqlite3ExprCompare(0, pExpr, pTruth, iTabCur)==0 ){
+ pTerm->wtFlags |= TERM_CODED;
+ }
+ }
+}
+
/*
** Generate code for the start of the iLevel-th loop in the WHERE clause
** implementation described by pWInfo.
*/
SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
+ Parse *pParse, /* Parsing context */
+ Vdbe *v, /* Prepared statement under construction */
WhereInfo *pWInfo, /* Complete information about the WHERE clause */
int iLevel, /* Which level of pWInfo->a[] should be coded */
+ WhereLevel *pLevel, /* The current level pointer */
Bitmask notReady /* Which tables are currently available */
){
int j, k; /* Loop counters */
int iCur; /* The VDBE cursor for the table */
int addrNxt; /* Where to jump to continue with the next IN case */
- int omitTable; /* True if we use the index only */
int bRev; /* True if we need to scan in reverse order */
- WhereLevel *pLevel; /* The where level to be coded */
WhereLoop *pLoop; /* The WhereLoop object being coded */
WhereClause *pWC; /* Decomposition of the entire WHERE clause */
WhereTerm *pTerm; /* A WHERE clause term */
- Parse *pParse; /* Parsing context */
sqlite3 *db; /* Database connection */
- Vdbe *v; /* The prepared stmt under constructions */
struct SrcList_item *pTabItem; /* FROM clause term being coded */
int addrBrk; /* Jump here to break out of the loop */
int addrHalt; /* addrBrk for the outermost loop */
@@ -135692,18 +138541,13 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
Index *pIdx = 0; /* Index used by loop (if any) */
int iLoop; /* Iteration of constraint generator loop */
- pParse = pWInfo->pParse;
- v = pParse->pVdbe;
pWC = &pWInfo->sWC;
db = pParse->db;
- pLevel = &pWInfo->a[iLevel];
pLoop = pLevel->pWLoop;
pTabItem = &pWInfo->pTabList->a[pLevel->iFrom];
iCur = pTabItem->iCursor;
pLevel->notReady = notReady & ~sqlite3WhereGetMask(&pWInfo->sMaskSet, iCur);
bRev = (pWInfo->revMask>>iLevel)&1;
- omitTable = (pLoop->wsFlags & WHERE_IDX_ONLY)!=0
- && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0;
VdbeModuleComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName));
/* Create labels for the "break" and "continue" instructions
@@ -135716,8 +138560,8 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
** there are no IN operators in the constraints, the "addrNxt" label
** is the same as "addrBrk".
*/
- addrBrk = pLevel->addrBrk = pLevel->addrNxt = sqlite3VdbeMakeLabel(v);
- addrCont = pLevel->addrCont = sqlite3VdbeMakeLabel(v);
+ addrBrk = pLevel->addrBrk = pLevel->addrNxt = sqlite3VdbeMakeLabel(pParse);
+ addrCont = pLevel->addrCont = sqlite3VdbeMakeLabel(pParse);
/* If this is the right table of a LEFT OUTER JOIN, allocate and
** initialize a memory cell that records if this table matches any
@@ -135844,7 +138688,6 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
pTerm = pLoop->aLTerm[0];
assert( pTerm!=0 );
assert( pTerm->pExpr!=0 );
- assert( omitTable==0 );
testcase( pTerm->wtFlags & TERM_VIRTUAL );
iReleaseReg = ++pParse->nMem;
iRowidReg = codeEqualityTerm(pParse, pTerm, pLevel, 0, bRev, iReleaseReg);
@@ -135853,6 +138696,9 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
sqlite3VdbeAddOp3(v, OP_SeekRowid, iCur, addrNxt, iRowidReg);
VdbeCoverage(v);
pLevel->op = OP_Noop;
+ if( (pTerm->prereqAll & pLevel->notReady)==0 ){
+ pTerm->wtFlags |= TERM_CODED;
+ }
}else if( (pLoop->wsFlags & WHERE_IPK)!=0
&& (pLoop->wsFlags & WHERE_COLUMN_RANGE)!=0
){
@@ -135863,7 +138709,6 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
int memEndValue = 0;
WhereTerm *pStart, *pEnd;
- assert( omitTable==0 );
j = 0;
pStart = pEnd = 0;
if( pLoop->wsFlags & WHERE_BTM_LIMIT ) pStart = pLoop->aLTerm[j++];
@@ -136027,31 +138872,13 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
char *zEndAff = 0; /* Affinity for end of range constraint */
u8 bSeekPastNull = 0; /* True to seek past initial nulls */
u8 bStopAtNull = 0; /* Add condition to terminate at NULLs */
+ int omitTable; /* True if we use the index only */
+ int regBignull = 0; /* big-null flag register */
pIdx = pLoop->u.btree.pIndex;
iIdxCur = pLevel->iIdxCur;
assert( nEq>=pLoop->nSkip );
- /* If this loop satisfies a sort order (pOrderBy) request that
- ** was passed to this function to implement a "SELECT min(x) ..."
- ** query, then the caller will only allow the loop to run for
- ** a single iteration. This means that the first row returned
- ** should not have a NULL value stored in 'x'. If column 'x' is
- ** the first one after the nEq equality constraints in the index,
- ** this requires some special handling.
- */
- assert( pWInfo->pOrderBy==0
- || pWInfo->pOrderBy->nExpr==1
- || (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0 );
- if( (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)!=0
- && pWInfo->nOBSat>0
- && (pIdx->nKeyCol>nEq)
- ){
- assert( pLoop->nSkip==0 );
- bSeekPastNull = 1;
- nExtraReg = 1;
- }
-
/* Find any inequality constraint terms for the start and end
** of the range.
*/
@@ -136092,6 +138919,25 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
}
assert( pRangeEnd==0 || (pRangeEnd->wtFlags & TERM_VNULL)==0 );
+ /* If the WHERE_BIGNULL_SORT flag is set, then index column nEq uses
+ ** a non-default "big-null" sort (either ASC NULLS LAST or DESC NULLS
+ ** FIRST). In both cases separate ordered scans are made of those
+ ** index entries for which the column is null and for those for which
+ ** it is not. For an ASC sort, the non-NULL entries are scanned first.
+ ** For DESC, NULL entries are scanned first.
+ */
+ if( (pLoop->wsFlags & (WHERE_TOP_LIMIT|WHERE_BTM_LIMIT))==0
+ && (pLoop->wsFlags & WHERE_BIGNULL_SORT)!=0
+ ){
+ assert( bSeekPastNull==0 && nExtraReg==0 && nBtm==0 && nTop==0 );
+ assert( pRangeEnd==0 && pRangeStart==0 );
+ assert( pLoop->nSkip==0 );
+ nExtraReg = 1;
+ bSeekPastNull = 1;
+ pLevel->regBignull = regBignull = ++pParse->nMem;
+ pLevel->addrBignull = sqlite3VdbeMakeLabel(pParse);
+ }
+
/* If we are doing a reverse order scan on an ascending index, or
** a forward order scan on a descending index, interchange the
** start and end terms (pRangeStart and pRangeEnd).
@@ -136114,7 +138960,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
if( zStartAff && nTop ){
zEndAff = sqlite3DbStrDup(db, &zStartAff[nEq]);
}
- addrNxt = pLevel->addrNxt;
+ addrNxt = (regBignull ? pLevel->addrBignull : pLevel->addrNxt);
testcase( pRangeStart && (pRangeStart->eOperator & WO_LE)!=0 );
testcase( pRangeStart && (pRangeStart->eOperator & WO_GE)!=0 );
@@ -136148,10 +138994,14 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
}
bSeekPastNull = 0;
}else if( bSeekPastNull ){
- sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
- nConstraint++;
startEq = 0;
+ sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
start_constraints = 1;
+ nConstraint++;
+ }else if( regBignull ){
+ sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
+ start_constraints = 1;
+ nConstraint++;
}
codeApplyAffinity(pParse, regBase, nConstraint - bSeekPastNull, zStartAff);
if( pLoop->nSkip>0 && nConstraint==pLoop->nSkip ){
@@ -136162,6 +139012,11 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
if( pLoop->wsFlags & WHERE_IN_EARLYOUT ){
sqlite3VdbeAddOp1(v, OP_SeekHit, iIdxCur);
}
+ if( regBignull ){
+ sqlite3VdbeAddOp2(v, OP_Integer, 1, regBignull);
+ VdbeComment((v, "NULL-scan pass ctr"));
+ }
+
op = aStartOp[(start_constraints<<2) + (startEq<<1) + bRev];
assert( op!=0 );
sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint);
@@ -136172,6 +139027,23 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
VdbeCoverageIf(v, op==OP_SeekGE); testcase( op==OP_SeekGE );
VdbeCoverageIf(v, op==OP_SeekLE); testcase( op==OP_SeekLE );
VdbeCoverageIf(v, op==OP_SeekLT); testcase( op==OP_SeekLT );
+
+ assert( bSeekPastNull==0 || bStopAtNull==0 );
+ if( regBignull ){
+ assert( bSeekPastNull==1 || bStopAtNull==1 );
+ assert( bSeekPastNull==!bStopAtNull );
+ assert( bStopAtNull==startEq );
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, sqlite3VdbeCurrentAddr(v)+2);
+ op = aStartOp[(nConstraint>1)*4 + 2 + bRev];
+ sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase,
+ nConstraint-startEq);
+ VdbeCoverage(v);
+ VdbeCoverageIf(v, op==OP_Rewind); testcase( op==OP_Rewind );
+ VdbeCoverageIf(v, op==OP_Last); testcase( op==OP_Last );
+ VdbeCoverageIf(v, op==OP_SeekGE); testcase( op==OP_SeekGE );
+ VdbeCoverageIf(v, op==OP_SeekLE); testcase( op==OP_SeekLE );
+ assert( op==OP_Rewind || op==OP_Last || op==OP_SeekGE || op==OP_SeekLE);
+ }
}
/* Load the value for the inequality constraint at the end of the
@@ -136203,8 +139075,10 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
endEq = 1;
}
}else if( bStopAtNull ){
- sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
- endEq = 0;
+ if( regBignull==0 ){
+ sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
+ endEq = 0;
+ }
nConstraint++;
}
sqlite3DbFree(db, zStartAff);
@@ -136215,6 +139089,12 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
/* Check if the index cursor is past the end of the range. */
if( nConstraint ){
+ if( regBignull ){
+ /* Except, skip the end-of-range check while doing the NULL-scan */
+ sqlite3VdbeAddOp2(v, OP_IfNot, regBignull, sqlite3VdbeCurrentAddr(v)+3);
+ VdbeComment((v, "If NULL-scan 2nd pass"));
+ VdbeCoverage(v);
+ }
op = aEndOp[bRev*2 + endEq];
sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint);
testcase( op==OP_IdxGT ); VdbeCoverageIf(v, op==OP_IdxGT );
@@ -136222,12 +139102,31 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
testcase( op==OP_IdxLT ); VdbeCoverageIf(v, op==OP_IdxLT );
testcase( op==OP_IdxLE ); VdbeCoverageIf(v, op==OP_IdxLE );
}
+ if( regBignull ){
+ /* During a NULL-scan, check to see if we have reached the end of
+ ** the NULLs */
+ assert( bSeekPastNull==!bStopAtNull );
+ assert( bSeekPastNull+bStopAtNull==1 );
+ assert( nConstraint+bSeekPastNull>0 );
+ sqlite3VdbeAddOp2(v, OP_If, regBignull, sqlite3VdbeCurrentAddr(v)+2);
+ VdbeComment((v, "If NULL-scan 1st pass"));
+ VdbeCoverage(v);
+ op = aEndOp[bRev*2 + bSeekPastNull];
+ sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase,
+ nConstraint+bSeekPastNull);
+ testcase( op==OP_IdxGT ); VdbeCoverageIf(v, op==OP_IdxGT );
+ testcase( op==OP_IdxGE ); VdbeCoverageIf(v, op==OP_IdxGE );
+ testcase( op==OP_IdxLT ); VdbeCoverageIf(v, op==OP_IdxLT );
+ testcase( op==OP_IdxLE ); VdbeCoverageIf(v, op==OP_IdxLE );
+ }
if( pLoop->wsFlags & WHERE_IN_EARLYOUT ){
sqlite3VdbeAddOp2(v, OP_SeekHit, iIdxCur, 1);
}
/* Seek the table cursor, if required */
+ omitTable = (pLoop->wsFlags & WHERE_IDX_ONLY)!=0
+ && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0;
if( omitTable ){
/* pIdx is a covering index. No need to access the main table. */
}else if( HasRowid(pIdx->pTable) ){
@@ -136262,11 +139161,24 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
** the cursor. In this case it is important to do the full evaluation,
** as the result of the expression may not be NULL, even if all table
** column values are. https://www.sqlite.org/src/info/7fa8049685b50b5a
+ **
+ ** Also, do not do this when processing one index an a multi-index
+ ** OR clause, since the transformation will become invalid once we
+ ** move forward to the next index.
+ ** https://sqlite.org/src/info/4e8e4857d32d401f
*/
- if( pLevel->iLeftJoin==0 ){
+ if( pLevel->iLeftJoin==0 && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ){
whereIndexExprTrans(pIdx, iCur, iIdxCur, pWInfo);
}
+ /* If a partial index is driving the loop, try to eliminate WHERE clause
+ ** terms from the query that must be true due to the WHERE clause of
+ ** the partial index
+ */
+ if( pIdx->pPartIdxWhere ){
+ whereApplyPartialIndexConstraints(pIdx->pPartIdxWhere, iCur, pWC);
+ }
+
/* Record the instruction used to terminate the loop. */
if( pLoop->wsFlags & WHERE_ONEROW ){
pLevel->op = OP_Noop;
@@ -136338,7 +139250,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
int regReturn = ++pParse->nMem; /* Register used with OP_Gosub */
int regRowset = 0; /* Register for RowSet object */
int regRowid = 0; /* Register holding rowid */
- int iLoopBody = sqlite3VdbeMakeLabel(v); /* Start of loop body */
+ int iLoopBody = sqlite3VdbeMakeLabel(pParse);/* Start of loop body */
int iRetInit; /* Address of regReturn init */
int untestedTerms = 0; /* Some terms not completely tested */
int ii; /* Loop counter */
@@ -136427,10 +139339,15 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
if( (pWC->a[iTerm].eOperator & WO_ALL)==0 ) continue;
testcase( pWC->a[iTerm].wtFlags & TERM_ORINFO );
pExpr = sqlite3ExprDup(db, pExpr, 0);
- pAndExpr = sqlite3ExprAnd(db, pAndExpr, pExpr);
+ pAndExpr = sqlite3ExprAnd(pParse, pAndExpr, pExpr);
}
if( pAndExpr ){
- pAndExpr = sqlite3PExpr(pParse, TK_AND|TKFLG_DONTFOLD, 0, pAndExpr);
+ /* The extra 0x10000 bit on the opcode is masked off and does not
+ ** become part of the new Expr.op. However, it does make the
+ ** op==TK_AND comparison inside of sqlite3PExpr() false, and this
+ ** prevents sqlite3PExpr() from implementing AND short-circuit
+ ** optimization, which we do not want here. */
+ pAndExpr = sqlite3PExpr(pParse, TK_AND|0x10000, 0, pAndExpr);
}
}
@@ -136454,6 +139371,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
pOrExpr = pAndExpr;
}
/* Loop through table entries that match term pOrTerm. */
+ ExplainQueryPlan((pParse, 1, "INDEX %d", ii+1));
WHERETRACE(0xffff, ("Subplan for OR-clause:\n"));
pSubWInfo = sqlite3WhereBegin(pParse, pOrTab, pOrExpr, 0, 0,
wctrlFlags, iCovCur);
@@ -136557,6 +139475,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
/* Finish the loop through table entries that match term pOrTerm. */
sqlite3WhereEnd(pSubWInfo);
+ ExplainQueryPlanPop(pParse);
}
}
}
@@ -136571,7 +139490,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
sqlite3VdbeGoto(v, pLevel->addrBrk);
sqlite3VdbeResolveLabel(v, iLoopBody);
- if( pWInfo->nLevel>1 ) sqlite3StackFree(db, pOrTab);
+ if( pWInfo->nLevel>1 ){ sqlite3StackFree(db, pOrTab); }
if( !untestedTerms ) disableTerm(pLevel, pTerm);
}else
#endif /* SQLITE_OMIT_OR_OPTIMIZATION */
@@ -136658,8 +139577,9 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
u32 x = pLevel->iLikeRepCntr;
if( x>0 ){
skipLikeAddr = sqlite3VdbeAddOp1(v, (x&1)?OP_IfNot:OP_If,(int)(x>>1));
+ VdbeCoverageIf(v, (x&1)==1);
+ VdbeCoverageIf(v, (x&1)==0);
}
- VdbeCoverage(v);
#endif
}
#ifdef WHERETRACE_ENABLED /* 0xffff */
@@ -136825,7 +139745,7 @@ static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){
}else{
pTerm->truthProb = 1;
}
- pTerm->pExpr = sqlite3ExprSkipCollate(p);
+ pTerm->pExpr = sqlite3ExprSkipCollateAndLikely(p);
pTerm->wtFlags = wtFlags;
pTerm->pWC = pWC;
pTerm->iParent = -1;
@@ -136858,10 +139778,16 @@ static int allowedOp(int op){
** the left hand side of a comparison overrides any collation sequence
** attached to the right. For the same reason the EP_Collate flag
** is not commuted.
+**
+** The return value is extra flags that are added to the WhereTerm object
+** after it is commuted. The only extra flag ever added is TERM_NOPARTIDX
+** which prevents the term from being used to enable a partial index if
+** COLLATE changes have been made.
*/
-static void exprCommute(Parse *pParse, Expr *pExpr){
+static u16 exprCommute(Parse *pParse, Expr *pExpr){
u16 expRight = (pExpr->pRight->flags & EP_Collate);
u16 expLeft = (pExpr->pLeft->flags & EP_Collate);
+ u16 wtFlags = 0;
assert( allowedOp(pExpr->op) && pExpr->op!=TK_IN );
if( expRight==expLeft ){
/* Either X and Y both have COLLATE operator or neither do */
@@ -136869,11 +139795,13 @@ static void exprCommute(Parse *pParse, Expr *pExpr){
/* Both X and Y have COLLATE operators. Make sure X is always
** used by clearing the EP_Collate flag from Y. */
pExpr->pRight->flags &= ~EP_Collate;
+ wtFlags |= TERM_NOPARTIDX;
}else if( sqlite3ExprCollSeq(pParse, pExpr->pLeft)!=0 ){
/* Neither X nor Y have COLLATE operators, but X has a non-default
** collating sequence. So add the EP_Collate marker on X to cause
** it to be searched first. */
pExpr->pLeft->flags |= EP_Collate;
+ wtFlags |= TERM_NOPARTIDX;
}
}
SWAP(Expr*,pExpr->pRight,pExpr->pLeft);
@@ -136885,6 +139813,7 @@ static void exprCommute(Parse *pParse, Expr *pExpr){
assert( pExpr->op>=TK_GT && pExpr->op<=TK_GE );
pExpr->op = ((pExpr->op-TK_GT)^2)+TK_GT;
}
+ return wtFlags;
}
/*
@@ -137003,27 +139932,38 @@ static int isLikeOrGlob(
zNew[iTo++] = zNew[iFrom];
}
zNew[iTo] = 0;
+ assert( iTo>0 );
- /* If the RHS begins with a digit or a minus sign, then the LHS must be
- ** an ordinary column (not a virtual table column) with TEXT affinity.
- ** Otherwise the LHS might be numeric and "lhs >= rhs" would be false
- ** even though "lhs LIKE rhs" is true. But if the RHS does not start
- ** with a digit or '-', then "lhs LIKE rhs" will always be false if
- ** the LHS is numeric and so the optimization still works.
+ /* If the LHS is not an ordinary column with TEXT affinity, then the
+ ** pattern prefix boundaries (both the start and end boundaries) must
+ ** not look like a number. Otherwise the pattern might be treated as
+ ** a number, which will invalidate the LIKE optimization.
**
- ** 2018-09-10 ticket c94369cae9b561b1f996d0054bfab11389f9d033
- ** The RHS pattern must not be '/%' because the termination condition
- ** will then become "x<'0'" and if the affinity is numeric, will then
- ** be converted into "x<0", which is incorrect.
+ ** Getting this right has been a persistent source of bugs in the
+ ** LIKE optimization. See, for example:
+ ** 2018-09-10 https://sqlite.org/src/info/c94369cae9b561b1
+ ** 2019-05-02 https://sqlite.org/src/info/b043a54c3de54b28
+ ** 2019-06-10 https://sqlite.org/src/info/fd76310a5e843e07
+ ** 2019-06-14 https://sqlite.org/src/info/ce8717f0885af975
+ ** 2019-09-03 https://sqlite.org/src/info/0f0428096f17252a
*/
- if( sqlite3Isdigit(zNew[0])
- || zNew[0]=='-'
- || (zNew[0]+1=='0' && iTo==1)
+ if( pLeft->op!=TK_COLUMN
+ || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT
+ || IsVirtual(pLeft->y.pTab) /* Value might be numeric */
){
- if( pLeft->op!=TK_COLUMN
- || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT
- || IsVirtual(pLeft->pTab) /* Value might be numeric */
- ){
+ int isNum;
+ double rDummy;
+ isNum = sqlite3AtoF(zNew, &rDummy, iTo, SQLITE_UTF8);
+ if( isNum<=0 ){
+ if( iTo==1 && zNew[0]=='-' ){
+ isNum = +1;
+ }else{
+ zNew[iTo-1]++;
+ isNum = sqlite3AtoF(zNew, &rDummy, iTo, SQLITE_UTF8);
+ zNew[iTo-1]--;
+ }
+ }
+ if( isNum>0 ){
sqlite3ExprDelete(db, pPrefix);
sqlite3ValueFree(pVal);
return 0;
@@ -137123,7 +140063,7 @@ static int isAuxiliaryVtabOperator(
** MATCH(expression,vtab_column)
*/
pCol = pList->a[1].pExpr;
- if( pCol->op==TK_COLUMN && IsVirtual(pCol->pTab) ){
+ if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
for(i=0; iu.zToken, aOp[i].zOp)==0 ){
*peOp2 = aOp[i].eOp2;
@@ -137145,12 +140085,12 @@ static int isAuxiliaryVtabOperator(
** with function names in an arbitrary case.
*/
pCol = pList->a[0].pExpr;
- if( pCol->op==TK_COLUMN && IsVirtual(pCol->pTab) ){
+ if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
sqlite3_vtab *pVtab;
sqlite3_module *pMod;
void (*xNotUsed)(sqlite3_context*,int,sqlite3_value**);
void *pNotUsed;
- pVtab = sqlite3GetVTable(db, pCol->pTab)->pVtab;
+ pVtab = sqlite3GetVTable(db, pCol->y.pTab)->pVtab;
assert( pVtab!=0 );
assert( pVtab->pModule!=0 );
pMod = (sqlite3_module *)pVtab->pModule;
@@ -137168,10 +140108,10 @@ static int isAuxiliaryVtabOperator(
int res = 0;
Expr *pLeft = pExpr->pLeft;
Expr *pRight = pExpr->pRight;
- if( pLeft->op==TK_COLUMN && IsVirtual(pLeft->pTab) ){
+ if( pLeft->op==TK_COLUMN && IsVirtual(pLeft->y.pTab) ){
res++;
}
- if( pRight && pRight->op==TK_COLUMN && IsVirtual(pRight->pTab) ){
+ if( pRight && pRight->op==TK_COLUMN && IsVirtual(pRight->y.pTab) ){
res++;
SWAP(Expr*, pLeft, pRight);
}
@@ -137518,6 +140458,7 @@ static void exprAnalyzeOrTerm(
** and column is found but leave okToChngToIN false if not found.
*/
for(j=0; j<2 && !okToChngToIN; j++){
+ Expr *pLeft = 0;
pOrTerm = pOrWc->a;
for(i=pOrWc->nTerm-1; i>=0; i--, pOrTerm++){
assert( pOrTerm->eOperator & WO_EQ );
@@ -137541,6 +140482,7 @@ static void exprAnalyzeOrTerm(
}
iColumn = pOrTerm->u.leftColumn;
iCursor = pOrTerm->leftCursor;
+ pLeft = pOrTerm->pExpr->pLeft;
break;
}
if( i<0 ){
@@ -137560,7 +140502,9 @@ static void exprAnalyzeOrTerm(
assert( pOrTerm->eOperator & WO_EQ );
if( pOrTerm->leftCursor!=iCursor ){
pOrTerm->wtFlags &= ~TERM_OR_OK;
- }else if( pOrTerm->u.leftColumn!=iColumn ){
+ }else if( pOrTerm->u.leftColumn!=iColumn || (iColumn==XN_EXPR
+ && sqlite3ExprCompare(pParse, pOrTerm->pExpr->pLeft, pLeft, -1)
+ )){
okToChngToIN = 0;
}else{
int affLeft, affRight;
@@ -137871,7 +140815,7 @@ static void exprAnalyze(
pDup = pExpr;
pNew = pTerm;
}
- exprCommute(pParse, pDup);
+ pNew->wtFlags |= exprCommute(pParse, pDup);
pNew->leftCursor = aiCurCol[0];
pNew->u.leftColumn = aiCurCol[1];
testcase( (prereqLeft | extraRight) != prereqLeft );
@@ -138112,8 +141056,8 @@ static void exprAnalyze(
}
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
- /* When sqlite_stat3 histogram data is available an operator of the
+#ifdef SQLITE_ENABLE_STAT4
+ /* When sqlite_stat4 histogram data is available an operator of the
** form "x IS NOT NULL" can sometimes be evaluated more efficiently
** as "x>NULL" if x is not an INTEGER PRIMARY KEY. So construct a
** virtual term of that form.
@@ -138123,7 +141067,8 @@ static void exprAnalyze(
if( pExpr->op==TK_NOTNULL
&& pExpr->pLeft->op==TK_COLUMN
&& pExpr->pLeft->iColumn>=0
- && OptimizationEnabled(db, SQLITE_Stat34)
+ && !ExprHasProperty(pExpr, EP_FromJoin)
+ && OptimizationEnabled(db, SQLITE_Stat4)
){
Expr *pNewExpr;
Expr *pLeft = pExpr->pLeft;
@@ -138148,7 +141093,7 @@ static void exprAnalyze(
pNewTerm->prereqAll = pTerm->prereqAll;
}
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
/* Prevent ON clause terms of a LEFT JOIN from being used to drive
** an index for tables to the left of the join.
@@ -138181,7 +141126,7 @@ static void exprAnalyze(
** all terms of the WHERE clause.
*/
SQLITE_PRIVATE void sqlite3WhereSplit(WhereClause *pWC, Expr *pExpr, u8 op){
- Expr *pE2 = sqlite3ExprSkipCollate(pExpr);
+ Expr *pE2 = sqlite3ExprSkipCollateAndLikely(pExpr);
pWC->op = op;
if( pE2==0 ) return;
if( pE2->op!=op ){
@@ -138256,6 +141201,12 @@ SQLITE_PRIVATE Bitmask sqlite3WhereExprUsageNN(WhereMaskSet *pMaskSet, Expr *p){
}else if( p->x.pList ){
mask |= sqlite3WhereExprListUsage(pMaskSet, p->x.pList);
}
+#ifndef SQLITE_OMIT_WINDOWFUNC
+ if( p->op==TK_FUNCTION && p->y.pWin ){
+ mask |= sqlite3WhereExprListUsage(pMaskSet, p->y.pWin->pPartition);
+ mask |= sqlite3WhereExprListUsage(pMaskSet, p->y.pWin->pOrderBy);
+ }
+#endif
return mask;
}
SQLITE_PRIVATE Bitmask sqlite3WhereExprUsage(WhereMaskSet *pMaskSet, Expr *p){
@@ -138314,6 +141265,7 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs(
pArgs = pItem->u1.pFuncArg;
if( pArgs==0 ) return;
for(j=k=0; jnExpr; j++){
+ Expr *pRhs;
while( knCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;}
if( k>=pTab->nCol ){
sqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d",
@@ -138324,9 +141276,10 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs(
if( pColRef==0 ) return;
pColRef->iTable = pItem->iCursor;
pColRef->iColumn = k++;
- pColRef->pTab = pTab;
- pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef,
- sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0));
+ pColRef->y.pTab = pTab;
+ pRhs = sqlite3PExpr(pParse, TK_UPLUS,
+ sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0), 0);
+ pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef, pRhs);
whereClauseInsert(pWC, pTerm, TERM_DYNAMIC);
}
}
@@ -138588,7 +141541,8 @@ static WhereTerm *whereScanNext(WhereScan *pScan){
){
if( (pTerm->eOperator & WO_EQUIV)!=0
&& pScan->nEquivaiCur)
- && (pX = sqlite3ExprSkipCollate(pTerm->pExpr->pRight))->op==TK_COLUMN
+ && (pX = sqlite3ExprSkipCollateAndLikely(pTerm->pExpr->pRight))->op
+ ==TK_COLUMN
){
int j;
for(j=0; jnEquiv; j++){
@@ -138645,6 +141599,17 @@ static WhereTerm *whereScanNext(WhereScan *pScan){
return 0;
}
+/*
+** This is whereScanInit() for the case of an index on an expression.
+** It is factored out into a separate tail-recursion subroutine so that
+** the normal whereScanInit() routine, which is a high-runner, does not
+** need to push registers onto the stack as part of its prologue.
+*/
+static SQLITE_NOINLINE WhereTerm *whereScanInitIndexExpr(WhereScan *pScan){
+ pScan->idxaff = sqlite3ExprAffinity(pScan->pIdxExpr);
+ return whereScanNext(pScan);
+}
+
/*
** Initialize a WHERE clause scanner object. Return a pointer to the
** first match. Return NULL if there are no matches.
@@ -138677,12 +141642,19 @@ static WhereTerm *whereScanInit(
pScan->pIdxExpr = 0;
pScan->idxaff = 0;
pScan->zCollName = 0;
+ pScan->opMask = opMask;
+ pScan->k = 0;
+ pScan->aiCur[0] = iCur;
+ pScan->nEquiv = 1;
+ pScan->iEquiv = 1;
if( pIdx ){
int j = iColumn;
iColumn = pIdx->aiColumn[j];
if( iColumn==XN_EXPR ){
pScan->pIdxExpr = pIdx->aColExpr->a[j].pExpr;
pScan->zCollName = pIdx->azColl[j];
+ pScan->aiColumn[0] = XN_EXPR;
+ return whereScanInitIndexExpr(pScan);
}else if( iColumn==pIdx->pTable->iPKey ){
iColumn = XN_ROWID;
}else if( iColumn>=0 ){
@@ -138692,12 +141664,7 @@ static WhereTerm *whereScanInit(
}else if( iColumn==XN_EXPR ){
return 0;
}
- pScan->opMask = opMask;
- pScan->k = 0;
- pScan->aiCur[0] = iCur;
pScan->aiColumn[0] = iColumn;
- pScan->nEquiv = 1;
- pScan->iEquiv = 1;
return whereScanNext(pScan);
}
@@ -138771,7 +141738,7 @@ static int findIndexCol(
const char *zColl = pIdx->azColl[iCol];
for(i=0; inExpr; i++){
- Expr *p = sqlite3ExprSkipCollate(pList->a[i].pExpr);
+ Expr *p = sqlite3ExprSkipCollateAndLikely(pList->a[i].pExpr);
if( p->op==TK_COLUMN
&& p->iColumn==pIdx->aiColumn[iCol]
&& p->iTable==iBase
@@ -138835,7 +141802,7 @@ static int isDistinctRedundant(
** current SELECT is a correlated sub-query.
*/
for(i=0; inExpr; i++){
- Expr *p = sqlite3ExprSkipCollate(pDistinct->a[i].pExpr);
+ Expr *p = sqlite3ExprSkipCollateAndLikely(pDistinct->a[i].pExpr);
if( p->op==TK_COLUMN && p->iTable==iBase && p->iColumn<0 ) return 1;
}
@@ -138884,17 +141851,17 @@ static LogEst estLog(LogEst N){
** opcodes into OP_Copy when the table is being accessed via co-routine
** instead of via table lookup.
**
-** If the bIncrRowid parameter is 0, then any OP_Rowid instructions on
-** cursor iTabCur are transformed into OP_Null. Or, if bIncrRowid is non-zero,
-** then each OP_Rowid is transformed into an instruction to increment the
-** value stored in its output register.
+** If the iAutoidxCur is not zero, then any OP_Rowid instructions on
+** cursor iTabCur are transformed into OP_Sequence opcode for the
+** iAutoidxCur cursor, in order to generate unique rowids for the
+** automatic index being generated.
*/
static void translateColumnToCopy(
Parse *pParse, /* Parsing context */
int iStart, /* Translate from this opcode to the end */
int iTabCur, /* OP_Column/OP_Rowid references to this table */
int iRegister, /* The first column is in this register */
- int bIncrRowid /* If non-zero, transform OP_rowid to OP_AddImm(1) */
+ int iAutoidxCur /* If non-zero, cursor of autoindex being generated */
){
Vdbe *v = pParse->pVdbe;
VdbeOp *pOp = sqlite3VdbeGetOp(v, iStart);
@@ -138908,11 +141875,9 @@ static void translateColumnToCopy(
pOp->p2 = pOp->p3;
pOp->p3 = 0;
}else if( pOp->opcode==OP_Rowid ){
- if( bIncrRowid ){
- /* Increment the value stored in the P2 operand of the OP_Rowid. */
- pOp->opcode = OP_AddImm;
- pOp->p1 = pOp->p2;
- pOp->p2 = 1;
+ if( iAutoidxCur ){
+ pOp->opcode = OP_Sequence;
+ pOp->p1 = iAutoidxCur;
}else{
pOp->opcode = OP_Null;
pOp->p1 = 0;
@@ -139059,7 +142024,7 @@ static void constructAutomaticIndex(
&& (pTerm->wtFlags & TERM_VIRTUAL)==0
&& !ExprHasProperty(pExpr, EP_FromJoin)
&& sqlite3ExprIsTableConstant(pExpr, pSrc->iCursor) ){
- pPartial = sqlite3ExprAnd(pParse->db, pPartial,
+ pPartial = sqlite3ExprAnd(pParse, pPartial,
sqlite3ExprDup(pParse->db, pExpr, 0));
}
if( termCanDriveIndex(pTerm, pSrc, notReady) ){
@@ -139172,7 +142137,7 @@ static void constructAutomaticIndex(
addrTop = sqlite3VdbeAddOp1(v, OP_Rewind, pLevel->iTabCur); VdbeCoverage(v);
}
if( pPartial ){
- iContinue = sqlite3VdbeMakeLabel(v);
+ iContinue = sqlite3VdbeMakeLabel(pParse);
sqlite3ExprIfFalse(pParse, pPartial, iContinue, SQLITE_JUMPIFNULL);
pLoop->wsFlags |= WHERE_PARTIALIDX;
}
@@ -139186,8 +142151,9 @@ static void constructAutomaticIndex(
if( pTabItem->fg.viaCoroutine ){
sqlite3VdbeChangeP2(v, addrCounter, regBase+n);
testcase( pParse->db->mallocFailed );
+ assert( pLevel->iIdxCur>0 );
translateColumnToCopy(pParse, addrTop, pLevel->iTabCur,
- pTabItem->regResult, 1);
+ pTabItem->regResult, pLevel->iIdxCur);
sqlite3VdbeGoto(v, addrTop);
pTabItem->fg.viaCoroutine = 0;
}else{
@@ -139256,6 +142222,7 @@ static sqlite3_index_info *allocateIndexInfo(
for(i=0; ia[i].pExpr;
if( pExpr->op!=TK_COLUMN || pExpr->iTable!=pSrc->iCursor ) break;
+ if( pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL ) break;
}
if( i==n){
nOrderBy = n;
@@ -139354,7 +142321,7 @@ static sqlite3_index_info *allocateIndexInfo(
for(i=0; ia[i].pExpr;
pIdxOrderBy[i].iColumn = pExpr->iColumn;
- pIdxOrderBy[i].desc = pOrderBy->a[i].sortOrder;
+ pIdxOrderBy[i].desc = pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC;
}
*pmNoOmit = mNoOmit;
@@ -139367,9 +142334,11 @@ static sqlite3_index_info *allocateIndexInfo(
** method of the virtual table with the sqlite3_index_info object that
** comes in as the 3rd argument to this function.
**
-** If an error occurs, pParse is populated with an error message and a
-** non-zero value is returned. Otherwise, 0 is returned and the output
-** part of the sqlite3_index_info structure is left populated.
+** If an error occurs, pParse is populated with an error message and an
+** appropriate error code is returned. A return of SQLITE_CONSTRAINT from
+** xBestIndex is not considered an error. SQLITE_CONSTRAINT indicates that
+** the current configuration of "unusable" flags in sqlite3_index_info can
+** not result in a valid plan.
**
** Whether or not an error is returned, it is the responsibility of the
** caller to eventually free p->idxStr if p->needToFreeIdxStr indicates
@@ -139383,7 +142352,7 @@ static int vtabBestIndex(Parse *pParse, Table *pTab, sqlite3_index_info *p){
rc = pVtab->pModule->xBestIndex(pVtab, p);
TRACE_IDX_OUTPUTS(p);
- if( rc!=SQLITE_OK ){
+ if( rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT ){
if( rc==SQLITE_NOMEM ){
sqlite3OomFault(pParse->db);
}else if( !pVtab->zErrMsg ){
@@ -139394,23 +142363,11 @@ static int vtabBestIndex(Parse *pParse, Table *pTab, sqlite3_index_info *p){
}
sqlite3_free(pVtab->zErrMsg);
pVtab->zErrMsg = 0;
-
-#if 0
- /* This error is now caught by the caller.
- ** Search for "xBestIndex malfunction" below */
- for(i=0; inConstraint; i++){
- if( !p->aConstraint[i].usable && p->aConstraintUsage[i].argvIndex>0 ){
- sqlite3ErrorMsg(pParse,
- "table %s: xBestIndex returned an invalid plan", pTab->zName);
- }
- }
-#endif
-
- return pParse->nErr;
+ return rc;
}
#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Estimate the location of a particular key among all keys in an
** index. Store the results in aStat as follows:
@@ -139603,7 +142560,7 @@ static int whereKeyStats(
pRec->nField = nField;
return i;
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
/*
** If it is not NULL, pTerm is a term that provides an upper or lower
@@ -139629,7 +142586,7 @@ static LogEst whereRangeAdjust(WhereTerm *pTerm, LogEst nNew){
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Return the affinity for a single column of an index.
*/
@@ -139638,12 +142595,13 @@ SQLITE_PRIVATE char sqlite3IndexColumnAffinity(sqlite3 *db, Index *pIdx, int iCo
if( !pIdx->zColAff ){
if( sqlite3IndexAffinityStr(db, pIdx)==0 ) return SQLITE_AFF_BLOB;
}
+ assert( pIdx->zColAff[iCol]!=0 );
return pIdx->zColAff[iCol];
}
#endif
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** This function is called to estimate the number of rows visited by a
** range-scan on a skip-scan index. For example:
@@ -139749,7 +142707,7 @@ static int whereRangeSkipScanEst(
return rc;
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
/*
** This function is used to estimate the number of rows that will be visited
@@ -139802,12 +142760,12 @@ static int whereRangeScanEst(
int nOut = pLoop->nOut;
LogEst nNew;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
Index *p = pLoop->u.btree.pIndex;
int nEq = pLoop->u.btree.nEq;
- if( p->nSample>0 && nEqnSampleCol
- && OptimizationEnabled(pParse->db, SQLITE_Stat34)
+ if( p->nSample>0 && ALWAYS(nEqnSampleCol)
+ && OptimizationEnabled(pParse->db, SQLITE_Stat4)
){
if( nEq==pBuilder->nRecValid ){
UnpackedRecord *pRec = pBuilder->pRec;
@@ -139905,7 +142863,7 @@ static int whereRangeScanEst(
/* TUNING: If both iUpper and iLower are derived from the same
** sample, then assume they are 4x more selective. This brings
** the estimated selectivity more in line with what it would be
- ** if estimated without the use of STAT3/4 tables. */
+ ** if estimated without the use of STAT4 tables. */
if( iLwrIdx==iUprIdx ) nNew -= 20; assert( 20==sqlite3LogEst(4) );
}else{
nNew = 10; assert( 10==sqlite3LogEst(2) );
@@ -139954,12 +142912,12 @@ static int whereRangeScanEst(
return rc;
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Estimate the number of rows that will be returned based on
** an equality constraint x=VALUE and where that VALUE occurs in
** the histogram data. This only works when x is the left-most
-** column of an index and sqlite_stat3 histogram data is available
+** column of an index and sqlite_stat4 histogram data is available
** for that index. When pExpr==NULL that means the constraint is
** "x IS NULL" instead of "x=VALUE".
**
@@ -140017,9 +142975,9 @@ static int whereEqualScanEst(
return rc;
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
/*
** Estimate the number of rows that will be returned based on
** an IN constraint where the right-hand side of the IN operator
@@ -140066,7 +143024,7 @@ static int whereInScanEst(
assert( pBuilder->nRecValid==nRecValid );
return rc;
}
-#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
+#endif /* SQLITE_ENABLE_STAT4 */
#ifdef WHERETRACE_ENABLED
@@ -140461,6 +143419,14 @@ static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
sqlite3 *db = pWInfo->pParse->db;
int rc;
+ /* Stop the search once we hit the query planner search limit */
+ if( pBuilder->iPlanLimit==0 ){
+ WHERETRACE(0xffffffff,("=== query planner search limit reached ===\n"));
+ if( pBuilder->pOrSet ) pBuilder->pOrSet->n = 0;
+ return SQLITE_DONE;
+ }
+ pBuilder->iPlanLimit--;
+
/* If pBuilder->pOrSet is defined, then only keep track of the costs
** and prereqs.
*/
@@ -140547,7 +143513,7 @@ static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
rc = whereLoopXfer(db, p, pTemplate);
if( (p->wsFlags & WHERE_VIRTUALTABLE)==0 ){
Index *pIndex = p->u.btree.pIndex;
- if( pIndex && pIndex->tnum==0 ){
+ if( pIndex && pIndex->idxType==SQLITE_IDXTYPE_IPK ){
p->u.btree.pIndex = 0;
}
}
@@ -140590,11 +143556,12 @@ static void whereLoopOutputAdjust(
){
WhereTerm *pTerm, *pX;
Bitmask notAllowed = ~(pLoop->prereq|pLoop->maskSelf);
- int i, j, k;
+ int i, j;
LogEst iReduce = 0; /* pLoop->nOut should not exceed nRow-iReduce */
assert( (pLoop->wsFlags & WHERE_AUTO_INDEX)==0 );
for(i=pWC->nTerm, pTerm=pWC->a; i>0; i--, pTerm++){
+ assert( pTerm!=0 );
if( (pTerm->wtFlags & TERM_VIRTUAL)!=0 ) break;
if( (pTerm->prereqAll & pLoop->maskSelf)==0 ) continue;
if( (pTerm->prereqAll & notAllowed)!=0 ) continue;
@@ -140615,6 +143582,7 @@ static void whereLoopOutputAdjust(
pLoop->nOut--;
if( pTerm->eOperator&(WO_EQ|WO_IS) ){
Expr *pRight = pTerm->pExpr->pRight;
+ int k = 0;
testcase( pTerm->pExpr->op==TK_IS );
if( sqlite3ExprIsInteger(pRight, &k) && k>=(-1) && k<=1 ){
k = 10;
@@ -140714,8 +143682,8 @@ static int whereRangeVectorLen(
** terms only. If it is modified, this value is restored before this
** function returns.
**
-** If pProbe->tnum==0, that means pIndex is a fake index used for the
-** INTEGER PRIMARY KEY.
+** If pProbe->idxType==SQLITE_IDXTYPE_IPK, that means pIndex is
+** a fake index used for the INTEGER PRIMARY KEY.
*/
static int whereLoopAddBtreeIndex(
WhereLoopBuilder *pBuilder, /* The WhereLoop factory */
@@ -140778,7 +143746,7 @@ static int whereLoopAddBtreeIndex(
LogEst rCostIdx;
LogEst nOutUnadjusted; /* nOut before IN() and WHERE adjustments */
int nIn = 0;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
int nRecValid = pBuilder->nRecValid;
#endif
if( (eOp==WO_ISNULL || (pTerm->wtFlags&TERM_VNULL)!=0)
@@ -140839,8 +143807,6 @@ static int whereLoopAddBtreeIndex(
}else if( ALWAYS(pExpr->x.pList && pExpr->x.pList->nExpr) ){
/* "x IN (value, value, ...)" */
nIn = sqlite3LogEst(pExpr->x.pList->nExpr);
- assert( nIn>0 ); /* RHS always has 2 or more terms... The parser
- ** changes "x IN (?)" into "x=?". */
}
if( pProbe->hasStat1 ){
LogEst M, logK, safetyMargin;
@@ -140936,7 +143902,7 @@ static int whereLoopAddBtreeIndex(
** the value of pNew->nOut to account for pTerm (but not nIn/nInMul). */
assert( pNew->nOut==saved_nOut );
if( pNew->wsFlags & WHERE_COLUMN_RANGE ){
- /* Adjust nOut using stat3/stat4 data. Or, if there is no stat3/stat4
+ /* Adjust nOut using stat4 data. Or, if there is no stat4
** data, using some other estimate. */
whereRangeScanEst(pParse, pBuilder, pBtm, pTop, pNew);
}else{
@@ -140950,13 +143916,13 @@ static int whereLoopAddBtreeIndex(
pNew->nOut += pTerm->truthProb;
pNew->nOut -= nIn;
}else{
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
tRowcnt nOut = 0;
if( nInMul==0
&& pProbe->nSample
&& pNew->u.btree.nEq<=pProbe->nSampleCol
&& ((eOp & WO_IN)==0 || !ExprHasProperty(pTerm->pExpr, EP_xIsSelect))
- && OptimizationEnabled(db, SQLITE_Stat34)
+ && OptimizationEnabled(db, SQLITE_Stat4)
){
Expr *pExpr = pTerm->pExpr;
if( (eOp & (WO_EQ|WO_ISNULL|WO_IS))!=0 ){
@@ -140993,6 +143959,7 @@ static int whereLoopAddBtreeIndex(
** it to pNew->rRun, which is currently set to the cost of the index
** seek only. Then, if this is a non-covering index, add the cost of
** visiting the rows in the main table. */
+ assert( pSrc->pTab->szTabRow>0 );
rCostIdx = pNew->nOut + 1 + (15*pProbe->szIdxRow)/pSrc->pTab->szTabRow;
pNew->rRun = sqlite3LogEstAdd(rLogSize, rCostIdx);
if( (pNew->wsFlags & (WHERE_IDX_ONLY|WHERE_IPK))==0 ){
@@ -141018,7 +143985,7 @@ static int whereLoopAddBtreeIndex(
whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, nInMul+nIn);
}
pNew->nOut = saved_nOut;
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
pBuilder->nRecValid = nRecValid;
#endif
}
@@ -141091,7 +144058,7 @@ static int indexMightHelpWithOrderBy(
if( pIndex->bUnordered ) return 0;
if( (pOB = pBuilder->pWInfo->pOrderBy)==0 ) return 0;
for(ii=0; iinExpr; ii++){
- Expr *pExpr = sqlite3ExprSkipCollate(pOB->a[ii].pExpr);
+ Expr *pExpr = sqlite3ExprSkipCollateAndLikely(pOB->a[ii].pExpr);
if( pExpr->op==TK_COLUMN && pExpr->iTable==iCursor ){
if( pExpr->iColumn<0 ) return 1;
for(jj=0; jjnKeyCol; jj++){
@@ -141122,7 +144089,9 @@ static int whereUsablePartialIndex(int iTab, WhereClause *pWC, Expr *pWhere){
}
if( pParse->db->flags & SQLITE_EnableQPSG ) pParse = 0;
for(i=0, pTerm=pWC->a; inTerm; i++, pTerm++){
- Expr *pExpr = pTerm->pExpr;
+ Expr *pExpr;
+ if( pTerm->wtFlags & TERM_NOPARTIDX ) continue;
+ pExpr = pTerm->pExpr;
if( (!ExprHasProperty(pExpr, EP_FromJoin) || pExpr->iRightJoinTable==iTab)
&& sqlite3ExprImpliesExpr(pParse, pExpr, pWhere, iTab)
){
@@ -141215,6 +144184,7 @@ static int whereLoopAddBtree(
sPk.onError = OE_Replace;
sPk.pTable = pTab;
sPk.szIdxRow = pTab->szTabRow;
+ sPk.idxType = SQLITE_IDXTYPE_IPK;
aiRowEstPk[0] = pTab->nRowLogEst;
aiRowEstPk[1] = 0;
pFirst = pSrc->pTab->pIndex;
@@ -141305,7 +144275,7 @@ static int whereLoopAddBtree(
b = indexMightHelpWithOrderBy(pBuilder, pProbe, pSrc->iCursor);
/* The ONEPASS_DESIRED flags never occurs together with ORDER BY */
assert( (pWInfo->wctrlFlags & WHERE_ONEPASS_DESIRED)==0 || b==0 );
- if( pProbe->tnum<=0 ){
+ if( pProbe->idxType==SQLITE_IDXTYPE_IPK ){
/* Integer primary key index */
pNew->wsFlags = WHERE_IPK;
@@ -141390,7 +144360,7 @@ static int whereLoopAddBtree(
** plan */
pTab->tabFlags |= TF_StatsUsed;
}
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+#ifdef SQLITE_ENABLE_STAT4
sqlite3Stat4ProbeFree(pBuilder->pRec);
pBuilder->nRecValid = 0;
pBuilder->pRec = 0;
@@ -141471,7 +144441,17 @@ static int whereLoopAddVirtualOne(
/* Invoke the virtual table xBestIndex() method */
rc = vtabBestIndex(pParse, pSrc->pTab, pIdxInfo);
- if( rc ) return rc;
+ if( rc ){
+ if( rc==SQLITE_CONSTRAINT ){
+ /* If the xBestIndex method returns SQLITE_CONSTRAINT, that means
+ ** that the particular combination of parameters provided is unusable.
+ ** Make no entries in the loop table.
+ */
+ WHERETRACE(0xffff, (" ^^^^--- non-viable plan rejected!\n"));
+ return SQLITE_OK;
+ }
+ return rc;
+ }
mxTerm = -1;
assert( pNew->nLSlot>=nConstraint );
@@ -141648,11 +144628,11 @@ static int whereLoopAddVirtual(
rc = whereLoopAddVirtualOne(pBuilder, mPrereq, ALLBITS, 0, p, mNoOmit, &bIn);
/* If the call to xBestIndex() with all terms enabled produced a plan
- ** that does not require any source tables (IOW: a plan with mBest==0),
- ** then there is no point in making any further calls to xBestIndex()
- ** since they will all return the same result (if the xBestIndex()
- ** implementation is sane). */
- if( rc==SQLITE_OK && (mBest = (pNew->prereq & ~mPrereq))!=0 ){
+ ** that does not require any source tables (IOW: a plan with mBest==0)
+ ** and does not use an IN(...) operator, then there is no point in making
+ ** any further calls to xBestIndex() since they will all return the same
+ ** result (if the xBestIndex() implementation is sane). */
+ if( rc==SQLITE_OK && ((mBest = (pNew->prereq & ~mPrereq))!=0 || bIn) ){
int seenZero = 0; /* True if a plan with no prereqs seen */
int seenZeroNoIN = 0; /* Plan with no prereqs and no IN(...) seen */
Bitmask mPrev = 0;
@@ -141867,9 +144847,11 @@ static int whereLoopAddAll(WhereLoopBuilder *pBuilder){
/* Loop over the tables in the join, from left to right */
pNew = pBuilder->pNew;
whereLoopInit(pNew);
+ pBuilder->iPlanLimit = SQLITE_QUERY_PLANNER_LIMIT;
for(iTab=0, pItem=pTabList->a; pItemiTab = iTab;
+ pBuilder->iPlanLimit += SQLITE_QUERY_PLANNER_LIMIT_INCR;
pNew->maskSelf = sqlite3WhereGetMask(&pWInfo->sMaskSet, pItem->iCursor);
if( ((pItem->fg.jointype|priorJointype) & (JT_LEFT|JT_CROSS))!=0 ){
/* This condition is true when pItem is the FROM clause term on the
@@ -141895,7 +144877,15 @@ static int whereLoopAddAll(WhereLoopBuilder *pBuilder){
rc = whereLoopAddOr(pBuilder, mPrereq, mUnusable);
}
mPrior |= pNew->maskSelf;
- if( rc || db->mallocFailed ) break;
+ if( rc || db->mallocFailed ){
+ if( rc==SQLITE_DONE ){
+ /* We hit the query planner search limit set by iPlanLimit */
+ sqlite3_log(SQLITE_WARNING, "abbreviated query algorithm search");
+ rc = SQLITE_OK;
+ }else{
+ break;
+ }
+ }
}
whereLoopClear(db, pNew);
@@ -141998,8 +144988,8 @@ static i8 wherePathSatisfiesOrderBy(
if( pLoop->wsFlags & WHERE_VIRTUALTABLE ){
if( pLoop->u.vtab.isOrdered ) obSat = obDone;
break;
- }else{
- pLoop->u.btree.nIdxCol = 0;
+ }else if( wctrlFlags & WHERE_DISTINCTBY ){
+ pLoop->u.btree.nDistinctCol = 0;
}
iCur = pWInfo->pTabList->a[pLoop->iTab].iCursor;
@@ -142010,7 +145000,7 @@ static i8 wherePathSatisfiesOrderBy(
*/
for(i=0; ia[i].pExpr);
+ pOBExpr = sqlite3ExprSkipCollateAndLikely(pOrderBy->a[i].pExpr);
if( pOBExpr->op!=TK_COLUMN ) continue;
if( pOBExpr->iTable!=iCur ) continue;
pTerm = sqlite3WhereFindTerm(&pWInfo->sWC, iCur, pOBExpr->iColumn,
@@ -142047,7 +145037,8 @@ static i8 wherePathSatisfiesOrderBy(
assert( nColumn==nKeyCol+1 || !HasRowid(pIndex->pTable) );
assert( pIndex->aiColumn[nColumn-1]==XN_ROWID
|| !HasRowid(pIndex->pTable));
- isOrderDistinct = IsUniqueIndex(pIndex);
+ isOrderDistinct = IsUniqueIndex(pIndex)
+ && (pLoop->wsFlags & WHERE_SKIPSCAN)==0;
}
/* Loop through all columns of the index and deal with the ones
@@ -142065,15 +145056,21 @@ static i8 wherePathSatisfiesOrderBy(
u16 eOp = pLoop->aLTerm[j]->eOperator;
/* Skip over == and IS and ISNULL terms. (Also skip IN terms when
- ** doing WHERE_ORDERBY_LIMIT processing).
+ ** doing WHERE_ORDERBY_LIMIT processing). Except, IS and ISNULL
+ ** terms imply that the index is not UNIQUE NOT NULL in which case
+ ** the loop need to be marked as not order-distinct because it can
+ ** have repeated NULL rows.
**
** If the current term is a column of an ((?,?) IN (SELECT...))
** expression for which the SELECT returns more than one column,
** check that it is the only column used by this loop. Otherwise,
** if it is one of two or more, none of the columns can be
- ** considered to match an ORDER BY term. */
+ ** considered to match an ORDER BY term.
+ */
if( (eOp & eqOpMask)!=0 ){
- if( eOp & WO_ISNULL ){
+ if( eOp & (WO_ISNULL|WO_IS) ){
+ testcase( eOp & WO_ISNULL );
+ testcase( eOp & WO_IS );
testcase( isOrderDistinct );
isOrderDistinct = 0;
}
@@ -142099,7 +145096,7 @@ static i8 wherePathSatisfiesOrderBy(
*/
if( pIndex ){
iColumn = pIndex->aiColumn[j];
- revIdx = pIndex->aSortOrder[j];
+ revIdx = pIndex->aSortOrder[j] & KEYINFO_ORDER_DESC;
if( iColumn==pIndex->pTable->iPKey ) iColumn = XN_ROWID;
}else{
iColumn = XN_ROWID;
@@ -142123,7 +145120,7 @@ static i8 wherePathSatisfiesOrderBy(
isMatch = 0;
for(i=0; bOnce && ia[i].pExpr);
+ pOBExpr = sqlite3ExprSkipCollateAndLikely(pOrderBy->a[i].pExpr);
testcase( wctrlFlags & WHERE_GROUPBY );
testcase( wctrlFlags & WHERE_DISTINCTBY );
if( (wctrlFlags & (WHERE_GROUPBY|WHERE_DISTINCTBY))==0 ) bOnce = 0;
@@ -142141,7 +145138,9 @@ static i8 wherePathSatisfiesOrderBy(
pColl = sqlite3ExprNNCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
if( sqlite3StrICmp(pColl->zName, pIndex->azColl[j])!=0 ) continue;
}
- pLoop->u.btree.nIdxCol = j+1;
+ if( wctrlFlags & WHERE_DISTINCTBY ){
+ pLoop->u.btree.nDistinctCol = j+1;
+ }
isMatch = 1;
break;
}
@@ -142149,13 +145148,22 @@ static i8 wherePathSatisfiesOrderBy(
/* Make sure the sort order is compatible in an ORDER BY clause.
** Sort order is irrelevant for a GROUP BY clause. */
if( revSet ){
- if( (rev ^ revIdx)!=pOrderBy->a[i].sortOrder ) isMatch = 0;
+ if( (rev ^ revIdx)!=(pOrderBy->a[i].sortFlags&KEYINFO_ORDER_DESC) ){
+ isMatch = 0;
+ }
}else{
- rev = revIdx ^ pOrderBy->a[i].sortOrder;
+ rev = revIdx ^ (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC);
if( rev ) *pRevMask |= MASKBIT(iLoop);
revSet = 1;
}
}
+ if( isMatch && (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL) ){
+ if( j==pLoop->u.btree.nEq ){
+ pLoop->wsFlags |= WHERE_BIGNULL_SORT;
+ }else{
+ isMatch = 0;
+ }
+ }
if( isMatch ){
if( iColumn==XN_ROWID ){
testcase( distinctColumns==0 );
@@ -142961,7 +145969,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(
pWInfo->pResultSet = pResultSet;
pWInfo->aiCurOnePass[0] = pWInfo->aiCurOnePass[1] = -1;
pWInfo->nLevel = nTabList;
- pWInfo->iBreak = pWInfo->iContinue = sqlite3VdbeMakeLabel(v);
+ pWInfo->iBreak = pWInfo->iContinue = sqlite3VdbeMakeLabel(pParse);
pWInfo->wctrlFlags = wctrlFlags;
pWInfo->iLimit = iAuxArg;
pWInfo->savedNQueryLoop = pParse->nQueryLoop;
@@ -143069,6 +146077,16 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(
sqlite3DebugPrintf(", limit: %d", iAuxArg);
}
sqlite3DebugPrintf(")\n");
+ if( sqlite3WhereTrace & 0x100 ){
+ Select sSelect;
+ memset(&sSelect, 0, sizeof(sSelect));
+ sSelect.selFlags = SF_WhereBegin;
+ sSelect.pSrc = pTabList;
+ sSelect.pWhere = pWhere;
+ sSelect.pOrderBy = pOrderBy;
+ sSelect.pEList = pResultSet;
+ sqlite3TreeViewSelect(0, &sSelect, 0);
+ }
}
if( sqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */
sqlite3WhereClausePrint(sWLB.pWC);
@@ -143235,9 +146253,10 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(
if( (wctrlFlags & WHERE_ONEPASS_DESIRED)!=0 ){
int wsFlags = pWInfo->a[0].pWLoop->wsFlags;
int bOnerow = (wsFlags & WHERE_ONEROW)!=0;
+ assert( !(wsFlags & WHERE_VIRTUALTABLE) || IsVirtual(pTabList->a[0].pTab) );
if( bOnerow || (
0!=(wctrlFlags & WHERE_ONEPASS_MULTIROW)
- && 0==(wsFlags & WHERE_VIRTUALTABLE)
+ && !IsVirtual(pTabList->a[0].pTab)
&& (0==(wsFlags & WHERE_MULTI_OR) || (wctrlFlags & WHERE_DUPLICATES_OK))
)){
pWInfo->eOnePass = bOnerow ? ONEPASS_SINGLE : ONEPASS_MULTI;
@@ -143344,6 +146363,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(
sqlite3VdbeSetP4KeyInfo(pParse, pIx);
if( (pLoop->wsFlags & WHERE_CONSTRAINT)!=0
&& (pLoop->wsFlags & (WHERE_COLUMN_RANGE|WHERE_SKIPSCAN))==0
+ && (pLoop->wsFlags & WHERE_BIGNULL_SORT)==0
&& (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0
&& pWInfo->eDistinct!=WHERE_DISTINCT_ORDERED
){
@@ -143392,7 +146412,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(
pParse, pTabList, pLevel, wctrlFlags
);
pLevel->addrBody = sqlite3VdbeCurrentAddr(v);
- notReady = sqlite3WhereCodeOneLoopStart(pWInfo, ii, notReady);
+ notReady = sqlite3WhereCodeOneLoopStart(pParse,v,pWInfo,ii,pLevel,notReady);
pWInfo->iContinue = pLevel->addrCont;
if( (wsFlags&WHERE_MULTI_OR)==0 && (wctrlFlags&WHERE_OR_SUBCLAUSE)==0 ){
sqlite3WhereAddScanStatus(v, pTabList, pLevel, addrExplain);
@@ -143461,7 +146481,7 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){
&& i==pWInfo->nLevel-1 /* Ticket [ef9318757b152e3] 2017-10-21 */
&& (pLoop->wsFlags & WHERE_INDEXED)!=0
&& (pIdx = pLoop->u.btree.pIndex)->hasStat1
- && (n = pLoop->u.btree.nIdxCol)>0
+ && (n = pLoop->u.btree.nDistinctCol)>0
&& pIdx->aiRowLogEst[n]>=36
){
int r1 = pParse->nMem+1;
@@ -143485,6 +146505,11 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){
VdbeCoverageIf(v, pLevel->op==OP_Next);
VdbeCoverageIf(v, pLevel->op==OP_Prev);
VdbeCoverageIf(v, pLevel->op==OP_VNext);
+ if( pLevel->regBignull ){
+ sqlite3VdbeResolveLabel(v, pLevel->addrBignull);
+ sqlite3VdbeAddOp2(v, OP_DecrJumpZero, pLevel->regBignull, pLevel->p2-1);
+ VdbeCoverage(v);
+ }
#ifndef SQLITE_DISABLE_SKIPAHEAD_DISTINCT
if( addrSeek ) sqlite3VdbeJumpHere(v, addrSeek);
#endif
@@ -143577,6 +146602,29 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){
continue;
}
+#ifdef SQLITE_ENABLE_EARLY_CURSOR_CLOSE
+ /* Close all of the cursors that were opened by sqlite3WhereBegin.
+ ** Except, do not close cursors that will be reused by the OR optimization
+ ** (WHERE_OR_SUBCLAUSE). And do not close the OP_OpenWrite cursors
+ ** created for the ONEPASS optimization.
+ */
+ if( (pTab->tabFlags & TF_Ephemeral)==0
+ && pTab->pSelect==0
+ && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0
+ ){
+ int ws = pLoop->wsFlags;
+ if( pWInfo->eOnePass==ONEPASS_OFF && (ws & WHERE_IDX_ONLY)==0 ){
+ sqlite3VdbeAddOp1(v, OP_Close, pTabItem->iCursor);
+ }
+ if( (ws & WHERE_INDEXED)!=0
+ && (ws & (WHERE_IPK|WHERE_AUTO_INDEX))==0
+ && pLevel->iIdxCur!=pWInfo->aiCurOnePass[1]
+ ){
+ sqlite3VdbeAddOp1(v, OP_Close, pLevel->iIdxCur);
+ }
+ }
+#endif
+
/* If this scan uses an index, make VDBE code substitutions to read data
** from the index instead of from the table where possible. In some cases
** this optimization prevents the table from ever being read, which can
@@ -143851,6 +146899,96 @@ static void dense_rankValueFunc(sqlite3_context *pCtx){
}
}
+/*
+** Implementation of built-in window function nth_value(). This
+** implementation is used in "slow mode" only - when the EXCLUDE clause
+** is not set to the default value "NO OTHERS".
+*/
+struct NthValueCtx {
+ i64 nStep;
+ sqlite3_value *pValue;
+};
+static void nth_valueStepFunc(
+ sqlite3_context *pCtx,
+ int nArg,
+ sqlite3_value **apArg
+){
+ struct NthValueCtx *p;
+ p = (struct NthValueCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ if( p ){
+ i64 iVal;
+ switch( sqlite3_value_numeric_type(apArg[1]) ){
+ case SQLITE_INTEGER:
+ iVal = sqlite3_value_int64(apArg[1]);
+ break;
+ case SQLITE_FLOAT: {
+ double fVal = sqlite3_value_double(apArg[1]);
+ if( ((i64)fVal)!=fVal ) goto error_out;
+ iVal = (i64)fVal;
+ break;
+ }
+ default:
+ goto error_out;
+ }
+ if( iVal<=0 ) goto error_out;
+
+ p->nStep++;
+ if( iVal==p->nStep ){
+ p->pValue = sqlite3_value_dup(apArg[0]);
+ if( !p->pValue ){
+ sqlite3_result_error_nomem(pCtx);
+ }
+ }
+ }
+ UNUSED_PARAMETER(nArg);
+ UNUSED_PARAMETER(apArg);
+ return;
+
+ error_out:
+ sqlite3_result_error(
+ pCtx, "second argument to nth_value must be a positive integer", -1
+ );
+}
+static void nth_valueFinalizeFunc(sqlite3_context *pCtx){
+ struct NthValueCtx *p;
+ p = (struct NthValueCtx*)sqlite3_aggregate_context(pCtx, 0);
+ if( p && p->pValue ){
+ sqlite3_result_value(pCtx, p->pValue);
+ sqlite3_value_free(p->pValue);
+ p->pValue = 0;
+ }
+}
+#define nth_valueInvFunc noopStepFunc
+#define nth_valueValueFunc noopValueFunc
+
+static void first_valueStepFunc(
+ sqlite3_context *pCtx,
+ int nArg,
+ sqlite3_value **apArg
+){
+ struct NthValueCtx *p;
+ p = (struct NthValueCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ if( p && p->pValue==0 ){
+ p->pValue = sqlite3_value_dup(apArg[0]);
+ if( !p->pValue ){
+ sqlite3_result_error_nomem(pCtx);
+ }
+ }
+ UNUSED_PARAMETER(nArg);
+ UNUSED_PARAMETER(apArg);
+}
+static void first_valueFinalizeFunc(sqlite3_context *pCtx){
+ struct NthValueCtx *p;
+ p = (struct NthValueCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ if( p && p->pValue ){
+ sqlite3_result_value(pCtx, p->pValue);
+ sqlite3_value_free(p->pValue);
+ p->pValue = 0;
+ }
+}
+#define first_valueInvFunc noopStepFunc
+#define first_valueValueFunc noopValueFunc
+
/*
** Implementation of built-in window function rank(). Assumes that
** the window frame has been set to:
@@ -143886,7 +147024,7 @@ static void rankValueFunc(sqlite3_context *pCtx){
** Implementation of built-in window function percent_rank(). Assumes that
** the window frame has been set to:
**
-** RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+** GROUPS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
*/
static void percent_rankStepFunc(
sqlite3_context *pCtx,
@@ -143894,38 +147032,44 @@ static void percent_rankStepFunc(
sqlite3_value **apArg
){
struct CallCount *p;
- UNUSED_PARAMETER(nArg); assert( nArg==1 );
-
+ UNUSED_PARAMETER(nArg); assert( nArg==0 );
+ UNUSED_PARAMETER(apArg);
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
- if( p->nTotal==0 ){
- p->nTotal = sqlite3_value_int64(apArg[0]);
- }
- p->nStep++;
- if( p->nValue==0 ){
- p->nValue = p->nStep;
- }
+ p->nTotal++;
}
}
+static void percent_rankInvFunc(
+ sqlite3_context *pCtx,
+ int nArg,
+ sqlite3_value **apArg
+){
+ struct CallCount *p;
+ UNUSED_PARAMETER(nArg); assert( nArg==0 );
+ UNUSED_PARAMETER(apArg);
+ p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ p->nStep++;
+}
static void percent_rankValueFunc(sqlite3_context *pCtx){
struct CallCount *p;
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
+ p->nValue = p->nStep;
if( p->nTotal>1 ){
- double r = (double)(p->nValue-1) / (double)(p->nTotal-1);
+ double r = (double)p->nValue / (double)(p->nTotal-1);
sqlite3_result_double(pCtx, r);
}else{
sqlite3_result_double(pCtx, 0.0);
}
- p->nValue = 0;
}
}
+#define percent_rankFinalizeFunc percent_rankValueFunc
/*
** Implementation of built-in window function cume_dist(). Assumes that
** the window frame has been set to:
**
-** RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+** GROUPS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
*/
static void cume_distStepFunc(
sqlite3_context *pCtx,
@@ -143933,24 +147077,33 @@ static void cume_distStepFunc(
sqlite3_value **apArg
){
struct CallCount *p;
- assert( nArg==1 ); UNUSED_PARAMETER(nArg);
-
+ UNUSED_PARAMETER(nArg); assert( nArg==0 );
+ UNUSED_PARAMETER(apArg);
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
- if( p->nTotal==0 ){
- p->nTotal = sqlite3_value_int64(apArg[0]);
- }
- p->nStep++;
+ p->nTotal++;
}
}
+static void cume_distInvFunc(
+ sqlite3_context *pCtx,
+ int nArg,
+ sqlite3_value **apArg
+){
+ struct CallCount *p;
+ UNUSED_PARAMETER(nArg); assert( nArg==0 );
+ UNUSED_PARAMETER(apArg);
+ p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ p->nStep++;
+}
static void cume_distValueFunc(sqlite3_context *pCtx){
struct CallCount *p;
- p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
- if( p && p->nTotal ){
+ p = (struct CallCount*)sqlite3_aggregate_context(pCtx, 0);
+ if( p ){
double r = (double)(p->nStep) / (double)(p->nTotal);
sqlite3_result_double(pCtx, r);
}
}
+#define cume_distFinalizeFunc cume_distValueFunc
/*
** Context object for ntile() window function.
@@ -143965,7 +147118,7 @@ struct NtileCtx {
** Implementation of ntile(). This assumes that the window frame has
** been coerced to:
**
-** ROWS UNBOUNDED PRECEDING AND CURRENT ROW
+** ROWS CURRENT ROW AND UNBOUNDED FOLLOWING
*/
static void ntileStepFunc(
sqlite3_context *pCtx,
@@ -143973,32 +147126,42 @@ static void ntileStepFunc(
sqlite3_value **apArg
){
struct NtileCtx *p;
- assert( nArg==2 ); UNUSED_PARAMETER(nArg);
+ assert( nArg==1 ); UNUSED_PARAMETER(nArg);
p = (struct NtileCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
if( p->nTotal==0 ){
p->nParam = sqlite3_value_int64(apArg[0]);
- p->nTotal = sqlite3_value_int64(apArg[1]);
if( p->nParam<=0 ){
sqlite3_result_error(
pCtx, "argument of ntile must be a positive integer", -1
);
}
}
- p->iRow++;
+ p->nTotal++;
}
}
+static void ntileInvFunc(
+ sqlite3_context *pCtx,
+ int nArg,
+ sqlite3_value **apArg
+){
+ struct NtileCtx *p;
+ assert( nArg==1 ); UNUSED_PARAMETER(nArg);
+ UNUSED_PARAMETER(apArg);
+ p = (struct NtileCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ p->iRow++;
+}
static void ntileValueFunc(sqlite3_context *pCtx){
struct NtileCtx *p;
p = (struct NtileCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p && p->nParam>0 ){
int nSize = (p->nTotal / p->nParam);
if( nSize==0 ){
- sqlite3_result_int64(pCtx, p->iRow);
+ sqlite3_result_int64(pCtx, p->iRow+1);
}else{
i64 nLarge = p->nTotal - p->nParam*nSize;
i64 iSmall = nLarge*(nSize+1);
- i64 iRow = p->iRow-1;
+ i64 iRow = p->iRow;
assert( (nLarge*(nSize+1) + (p->nParam-nLarge)*nSize)==p->nTotal );
@@ -144010,6 +147173,7 @@ static void ntileValueFunc(sqlite3_context *pCtx){
}
}
}
+#define ntileFinalizeFunc ntileValueFunc
/*
** Context object for last_value() window function.
@@ -144059,7 +147223,7 @@ static void last_valueInvFunc(
}
static void last_valueValueFunc(sqlite3_context *pCtx){
struct LastValueCtx *p;
- p = (struct LastValueCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+ p = (struct LastValueCtx*)sqlite3_aggregate_context(pCtx, 0);
if( p && p->pVal ){
sqlite3_result_value(pCtx, p->pVal);
}
@@ -144149,12 +147313,12 @@ SQLITE_PRIVATE void sqlite3WindowFunctions(void){
WINDOWFUNCX(row_number, 0, 0),
WINDOWFUNCX(dense_rank, 0, 0),
WINDOWFUNCX(rank, 0, 0),
- WINDOWFUNCX(percent_rank, 0, SQLITE_FUNC_WINDOW_SIZE),
- WINDOWFUNCX(cume_dist, 0, SQLITE_FUNC_WINDOW_SIZE),
- WINDOWFUNCX(ntile, 1, SQLITE_FUNC_WINDOW_SIZE),
+ WINDOWFUNCALL(percent_rank, 0, 0),
+ WINDOWFUNCALL(cume_dist, 0, 0),
+ WINDOWFUNCALL(ntile, 1, 0),
WINDOWFUNCALL(last_value, 1, 0),
- WINDOWFUNCNOOP(nth_value, 2, 0),
- WINDOWFUNCNOOP(first_value, 1, 0),
+ WINDOWFUNCALL(nth_value, 2, 0),
+ WINDOWFUNCALL(first_value, 1, 0),
WINDOWFUNCNOOP(lead, 1, 0),
WINDOWFUNCNOOP(lead, 2, 0),
WINDOWFUNCNOOP(lead, 3, 0),
@@ -144165,6 +147329,17 @@ SQLITE_PRIVATE void sqlite3WindowFunctions(void){
sqlite3InsertBuiltinFuncs(aWindowFuncs, ArraySize(aWindowFuncs));
}
+static Window *windowFind(Parse *pParse, Window *pList, const char *zName){
+ Window *p;
+ for(p=pList; p; p=p->pNextWin){
+ if( sqlite3StrICmp(p->zName, zName)==0 ) break;
+ }
+ if( p==0 ){
+ sqlite3ErrorMsg(pParse, "no such window: %s", zName);
+ }
+ return p;
+}
+
/*
** This function is called immediately after resolving the function name
** for a window function within a SELECT statement. Argument pList is a
@@ -144188,48 +147363,66 @@ SQLITE_PRIVATE void sqlite3WindowUpdate(
Window *pWin, /* Window frame to update */
FuncDef *pFunc /* Window function definition */
){
- if( pWin->zName && pWin->eType==0 ){
- Window *p;
- for(p=pList; p; p=p->pNextWin){
- if( sqlite3StrICmp(p->zName, pWin->zName)==0 ) break;
- }
- if( p==0 ){
- sqlite3ErrorMsg(pParse, "no such window: %s", pWin->zName);
- return;
- }
+ if( pWin->zName && pWin->eFrmType==0 ){
+ Window *p = windowFind(pParse, pList, pWin->zName);
+ if( p==0 ) return;
pWin->pPartition = sqlite3ExprListDup(pParse->db, p->pPartition, 0);
pWin->pOrderBy = sqlite3ExprListDup(pParse->db, p->pOrderBy, 0);
pWin->pStart = sqlite3ExprDup(pParse->db, p->pStart, 0);
pWin->pEnd = sqlite3ExprDup(pParse->db, p->pEnd, 0);
pWin->eStart = p->eStart;
pWin->eEnd = p->eEnd;
- pWin->eType = p->eType;
+ pWin->eFrmType = p->eFrmType;
+ pWin->eExclude = p->eExclude;
+ }else{
+ sqlite3WindowChain(pParse, pWin, pList);
}
+ if( (pWin->eFrmType==TK_RANGE)
+ && (pWin->pStart || pWin->pEnd)
+ && (pWin->pOrderBy==0 || pWin->pOrderBy->nExpr!=1)
+ ){
+ sqlite3ErrorMsg(pParse,
+ "RANGE with offset PRECEDING/FOLLOWING requires one ORDER BY expression"
+ );
+ }else
if( pFunc->funcFlags & SQLITE_FUNC_WINDOW ){
sqlite3 *db = pParse->db;
if( pWin->pFilter ){
sqlite3ErrorMsg(pParse,
"FILTER clause may only be used with aggregate window functions"
);
- }else
- if( pFunc->zName==row_numberName || pFunc->zName==ntileName ){
- sqlite3ExprDelete(db, pWin->pStart);
- sqlite3ExprDelete(db, pWin->pEnd);
- pWin->pStart = pWin->pEnd = 0;
- pWin->eType = TK_ROWS;
- pWin->eStart = TK_UNBOUNDED;
- pWin->eEnd = TK_CURRENT;
- }else
-
- if( pFunc->zName==dense_rankName || pFunc->zName==rankName
- || pFunc->zName==percent_rankName || pFunc->zName==cume_distName
- ){
- sqlite3ExprDelete(db, pWin->pStart);
- sqlite3ExprDelete(db, pWin->pEnd);
- pWin->pStart = pWin->pEnd = 0;
- pWin->eType = TK_RANGE;
- pWin->eStart = TK_UNBOUNDED;
- pWin->eEnd = TK_CURRENT;
+ }else{
+ struct WindowUpdate {
+ const char *zFunc;
+ int eFrmType;
+ int eStart;
+ int eEnd;
+ } aUp[] = {
+ { row_numberName, TK_ROWS, TK_UNBOUNDED, TK_CURRENT },
+ { dense_rankName, TK_RANGE, TK_UNBOUNDED, TK_CURRENT },
+ { rankName, TK_RANGE, TK_UNBOUNDED, TK_CURRENT },
+ { percent_rankName, TK_GROUPS, TK_CURRENT, TK_UNBOUNDED },
+ { cume_distName, TK_GROUPS, TK_FOLLOWING, TK_UNBOUNDED },
+ { ntileName, TK_ROWS, TK_CURRENT, TK_UNBOUNDED },
+ { leadName, TK_ROWS, TK_UNBOUNDED, TK_UNBOUNDED },
+ { lagName, TK_ROWS, TK_UNBOUNDED, TK_CURRENT },
+ };
+ int i;
+ for(i=0; izName==aUp[i].zFunc ){
+ sqlite3ExprDelete(db, pWin->pStart);
+ sqlite3ExprDelete(db, pWin->pEnd);
+ pWin->pEnd = pWin->pStart = 0;
+ pWin->eFrmType = aUp[i].eFrmType;
+ pWin->eStart = aUp[i].eStart;
+ pWin->eEnd = aUp[i].eEnd;
+ pWin->eExclude = 0;
+ if( pWin->eStart==TK_FOLLOWING ){
+ pWin->pStart = sqlite3Expr(db, TK_INTEGER, "1");
+ }
+ break;
+ }
+ }
}
}
pWin->pFunc = pFunc;
@@ -144244,6 +147437,7 @@ struct WindowRewrite {
Window *pWin;
SrcList *pSrc;
ExprList *pSub;
+ Table *pTab;
Select *pSubSelect; /* Current sub-select, if any */
};
@@ -144255,6 +147449,8 @@ struct WindowRewrite {
static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
struct WindowRewrite *p = pWalker->u.pRewrite;
Parse *pParse = pWalker->pParse;
+ assert( p!=0 );
+ assert( p->pWin!=0 );
/* If this function is being called from within a scalar sub-select
** that used by the SELECT statement being processed, only process
@@ -144277,12 +147473,12 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
switch( pExpr->op ){
case TK_FUNCTION:
- if( pExpr->pWin==0 ){
+ if( !ExprHasProperty(pExpr, EP_WinFunc) ){
break;
}else{
Window *pWin;
for(pWin=p->pWin; pWin; pWin=pWin->pNextWin){
- if( pExpr->pWin==pWin ){
+ if( pExpr->y.pWin==pWin ){
assert( pWin->pOwner==pExpr );
return WRC_Prune;
}
@@ -144304,6 +147500,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
pExpr->op = TK_COLUMN;
pExpr->iColumn = p->pSub->nExpr-1;
pExpr->iTable = p->pWin->iEphCsr;
+ pExpr->y.pTab = p->pTab;
}
break;
@@ -144347,17 +147544,20 @@ static void selectWindowRewriteEList(
Window *pWin,
SrcList *pSrc,
ExprList *pEList, /* Rewrite expressions in this list */
+ Table *pTab,
ExprList **ppSub /* IN/OUT: Sub-select expression-list */
){
Walker sWalker;
WindowRewrite sRewrite;
+ assert( pWin!=0 );
memset(&sWalker, 0, sizeof(Walker));
memset(&sRewrite, 0, sizeof(WindowRewrite));
sRewrite.pSub = *ppSub;
sRewrite.pWin = pWin;
sRewrite.pSrc = pSrc;
+ sRewrite.pTab = pTab;
sWalker.pParse = pParse;
sWalker.xExprCallback = selectWindowRewriteExprCb;
@@ -144376,15 +147576,20 @@ static void selectWindowRewriteEList(
static ExprList *exprListAppendList(
Parse *pParse, /* Parsing context */
ExprList *pList, /* List to which to append. Might be NULL */
- ExprList *pAppend /* List of values to append. Might be NULL */
+ ExprList *pAppend, /* List of values to append. Might be NULL */
+ int bIntToNull
){
if( pAppend ){
int i;
int nInit = pList ? pList->nExpr : 0;
for(i=0; inExpr; i++){
Expr *pDup = sqlite3ExprDup(pParse->db, pAppend->a[i].pExpr, 0);
+ if( bIntToNull && pDup && pDup->op==TK_INTEGER ){
+ pDup->op = TK_NULL;
+ pDup->flags &= ~(EP_IntValue|EP_IsTrue|EP_IsFalse);
+ }
pList = sqlite3ExprListAppend(pParse, pList, pDup);
- if( pList ) pList->a[nInit+i].sortOrder = pAppend->a[i].sortOrder;
+ if( pList ) pList->a[nInit+i].sortFlags = pAppend->a[i].sortFlags;
}
}
return pList;
@@ -144399,7 +147604,7 @@ static ExprList *exprListAppendList(
*/
SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){
int rc = SQLITE_OK;
- if( p->pWin ){
+ if( p->pWin && p->pPrior==0 ){
Vdbe *v = sqlite3GetVdbe(pParse);
sqlite3 *db = pParse->db;
Select *pSub = 0; /* The subquery */
@@ -144412,46 +147617,64 @@ SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){
ExprList *pSublist = 0; /* Expression list for sub-query */
Window *pMWin = p->pWin; /* Master window object */
Window *pWin; /* Window object iterator */
+ Table *pTab;
+
+ pTab = sqlite3DbMallocZero(db, sizeof(Table));
+ if( pTab==0 ){
+ return SQLITE_NOMEM;
+ }
p->pSrc = 0;
p->pWhere = 0;
p->pGroupBy = 0;
p->pHaving = 0;
+ p->selFlags &= ~SF_Aggregate;
/* Create the ORDER BY clause for the sub-select. This is the concatenation
** of the window PARTITION and ORDER BY clauses. Then, if this makes it
** redundant, remove the ORDER BY from the parent SELECT. */
pSort = sqlite3ExprListDup(db, pMWin->pPartition, 0);
- pSort = exprListAppendList(pParse, pSort, pMWin->pOrderBy);
- if( pSort && p->pOrderBy ){
+ pSort = exprListAppendList(pParse, pSort, pMWin->pOrderBy, 1);
+ if( pSort && p->pOrderBy && p->pOrderBy->nExpr<=pSort->nExpr ){
+ int nSave = pSort->nExpr;
+ pSort->nExpr = p->pOrderBy->nExpr;
if( sqlite3ExprListCompare(pSort, p->pOrderBy, -1)==0 ){
sqlite3ExprListDelete(db, p->pOrderBy);
p->pOrderBy = 0;
}
+ pSort->nExpr = nSave;
}
/* Assign a cursor number for the ephemeral table used to buffer rows.
** The OpenEphemeral instruction is coded later, after it is known how
** many columns the table will have. */
pMWin->iEphCsr = pParse->nTab++;
+ pParse->nTab += 3;
- selectWindowRewriteEList(pParse, pMWin, pSrc, p->pEList, &pSublist);
- selectWindowRewriteEList(pParse, pMWin, pSrc, p->pOrderBy, &pSublist);
+ selectWindowRewriteEList(pParse, pMWin, pSrc, p->pEList, pTab, &pSublist);
+ selectWindowRewriteEList(pParse, pMWin, pSrc, p->pOrderBy, pTab, &pSublist);
pMWin->nBufferCol = (pSublist ? pSublist->nExpr : 0);
/* Append the PARTITION BY and ORDER BY expressions to the to the
** sub-select expression list. They are required to figure out where
** boundaries for partitions and sets of peer rows lie. */
- pSublist = exprListAppendList(pParse, pSublist, pMWin->pPartition);
- pSublist = exprListAppendList(pParse, pSublist, pMWin->pOrderBy);
+ pSublist = exprListAppendList(pParse, pSublist, pMWin->pPartition, 0);
+ pSublist = exprListAppendList(pParse, pSublist, pMWin->pOrderBy, 0);
/* Append the arguments passed to each window function to the
** sub-select expression list. Also allocate two registers for each
** window function - one for the accumulator, another for interim
** results. */
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
- pWin->iArgCol = (pSublist ? pSublist->nExpr : 0);
- pSublist = exprListAppendList(pParse, pSublist, pWin->pOwner->x.pList);
+ ExprList *pArgs = pWin->pOwner->x.pList;
+ if( pWin->pFunc->funcFlags & SQLITE_FUNC_SUBTYPE ){
+ selectWindowRewriteEList(pParse, pMWin, pSrc, pArgs, pTab, &pSublist);
+ pWin->iArgCol = (pSublist ? pSublist->nExpr : 0);
+ pWin->bExprArgs = 1;
+ }else{
+ pWin->iArgCol = (pSublist ? pSublist->nExpr : 0);
+ pSublist = exprListAppendList(pParse, pSublist, pArgs, 0);
+ }
if( pWin->pFilter ){
Expr *pFilter = sqlite3ExprDup(db, pWin->pFilter, 0);
pSublist = sqlite3ExprListAppend(pParse, pSublist, pFilter);
@@ -144469,47 +147692,67 @@ SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){
*/
if( pSublist==0 ){
pSublist = sqlite3ExprListAppend(pParse, 0,
- sqlite3ExprAlloc(db, TK_INTEGER, &sqlite3IntTokens[0], 0)
+ sqlite3Expr(db, TK_INTEGER, "0")
);
}
pSub = sqlite3SelectNew(
pParse, pSublist, pSrc, pWhere, pGroupBy, pHaving, pSort, 0, 0
);
- p->pSrc = sqlite3SrcListAppend(db, 0, 0, 0);
- assert( p->pSrc || db->mallocFailed );
+ p->pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0);
if( p->pSrc ){
+ Table *pTab2;
p->pSrc->a[0].pSelect = pSub;
sqlite3SrcListAssignCursors(pParse, p->pSrc);
- if( sqlite3ExpandSubquery(pParse, &p->pSrc->a[0]) ){
+ pSub->selFlags |= SF_Expanded;
+ pTab2 = sqlite3ResultSetOfSelect(pParse, pSub, SQLITE_AFF_NONE);
+ if( pTab2==0 ){
rc = SQLITE_NOMEM;
}else{
- pSub->selFlags |= SF_Expanded;
- p->selFlags &= ~SF_Aggregate;
- sqlite3SelectPrep(pParse, pSub, 0);
+ memcpy(pTab, pTab2, sizeof(Table));
+ pTab->tabFlags |= TF_Ephemeral;
+ p->pSrc->a[0].pTab = pTab;
+ pTab = pTab2;
}
-
sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pMWin->iEphCsr, pSublist->nExpr);
+ sqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+1, pMWin->iEphCsr);
+ sqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+2, pMWin->iEphCsr);
+ sqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+3, pMWin->iEphCsr);
}else{
sqlite3SelectDelete(db, pSub);
}
if( db->mallocFailed ) rc = SQLITE_NOMEM;
+ sqlite3DbFree(db, pTab);
}
return rc;
}
+/*
+** Unlink the Window object from the Select to which it is attached,
+** if it is attached.
+*/
+SQLITE_PRIVATE void sqlite3WindowUnlinkFromSelect(Window *p){
+ if( p->ppThis ){
+ *p->ppThis = p->pNextWin;
+ if( p->pNextWin ) p->pNextWin->ppThis = p->ppThis;
+ p->ppThis = 0;
+ }
+}
+
/*
** Free the Window object passed as the second argument.
*/
SQLITE_PRIVATE void sqlite3WindowDelete(sqlite3 *db, Window *p){
if( p ){
+ sqlite3WindowUnlinkFromSelect(p);
sqlite3ExprDelete(db, p->pFilter);
sqlite3ExprListDelete(db, p->pPartition);
sqlite3ExprListDelete(db, p->pOrderBy);
sqlite3ExprDelete(db, p->pEnd);
sqlite3ExprDelete(db, p->pStart);
sqlite3DbFree(db, p->zName);
+ sqlite3DbFree(db, p->zBase);
sqlite3DbFree(db, p);
}
}
@@ -144534,6 +147777,7 @@ SQLITE_PRIVATE void sqlite3WindowListDelete(sqlite3 *db, Window *p){
*/
static Expr *sqlite3WindowOffsetExpr(Parse *pParse, Expr *pExpr){
if( 0==sqlite3ExprIsConstant(pExpr) ){
+ if( IN_RENAME_OBJECT ) sqlite3RenameExprUnmap(pParse, pExpr);
sqlite3ExprDelete(pParse->db, pExpr);
pExpr = sqlite3ExprAlloc(pParse->db, TK_NULL, 0, 0);
}
@@ -144545,16 +147789,18 @@ static Expr *sqlite3WindowOffsetExpr(Parse *pParse, Expr *pExpr){
*/
SQLITE_PRIVATE Window *sqlite3WindowAlloc(
Parse *pParse, /* Parsing context */
- int eType, /* Frame type. TK_RANGE or TK_ROWS */
+ int eType, /* Frame type. TK_RANGE, TK_ROWS, TK_GROUPS, or 0 */
int eStart, /* Start type: CURRENT, PRECEDING, FOLLOWING, UNBOUNDED */
Expr *pStart, /* Start window size if TK_PRECEDING or FOLLOWING */
int eEnd, /* End type: CURRENT, FOLLOWING, TK_UNBOUNDED, PRECEDING */
- Expr *pEnd /* End window size if TK_FOLLOWING or PRECEDING */
+ Expr *pEnd, /* End window size if TK_FOLLOWING or PRECEDING */
+ u8 eExclude /* EXCLUDE clause */
){
Window *pWin = 0;
+ int bImplicitFrame = 0;
/* Parser assures the following: */
- assert( eType==TK_RANGE || eType==TK_ROWS );
+ assert( eType==0 || eType==TK_RANGE || eType==TK_ROWS || eType==TK_GROUPS );
assert( eStart==TK_CURRENT || eStart==TK_PRECEDING
|| eStart==TK_UNBOUNDED || eStart==TK_FOLLOWING );
assert( eEnd==TK_CURRENT || eEnd==TK_FOLLOWING
@@ -144562,13 +147808,9 @@ SQLITE_PRIVATE Window *sqlite3WindowAlloc(
assert( (eStart==TK_PRECEDING || eStart==TK_FOLLOWING)==(pStart!=0) );
assert( (eEnd==TK_FOLLOWING || eEnd==TK_PRECEDING)==(pEnd!=0) );
-
- /* If a frame is declared "RANGE" (not "ROWS"), then it may not use
- ** either " PRECEDING" or " FOLLOWING".
- */
- if( eType==TK_RANGE && (pStart!=0 || pEnd!=0) ){
- sqlite3ErrorMsg(pParse, "RANGE must use only UNBOUNDED or CURRENT ROW");
- goto windowAllocErr;
+ if( eType==0 ){
+ bImplicitFrame = 1;
+ eType = TK_RANGE;
}
/* Additionally, the
@@ -144588,15 +147830,20 @@ SQLITE_PRIVATE Window *sqlite3WindowAlloc(
if( (eStart==TK_CURRENT && eEnd==TK_PRECEDING)
|| (eStart==TK_FOLLOWING && (eEnd==TK_PRECEDING || eEnd==TK_CURRENT))
){
- sqlite3ErrorMsg(pParse, "unsupported frame delimiter for ROWS");
+ sqlite3ErrorMsg(pParse, "unsupported frame specification");
goto windowAllocErr;
}
pWin = (Window*)sqlite3DbMallocZero(pParse->db, sizeof(Window));
if( pWin==0 ) goto windowAllocErr;
- pWin->eType = eType;
+ pWin->eFrmType = eType;
pWin->eStart = eStart;
pWin->eEnd = eEnd;
+ if( eExclude==0 && OptimizationDisabled(pParse->db, SQLITE_WindowFunc) ){
+ eExclude = TK_NO;
+ }
+ pWin->eExclude = eExclude;
+ pWin->bImplicitFrame = bImplicitFrame;
pWin->pEnd = sqlite3WindowOffsetExpr(pParse, pEnd);
pWin->pStart = sqlite3WindowOffsetExpr(pParse, pStart);
return pWin;
@@ -144607,39 +147854,124 @@ windowAllocErr:
return 0;
}
+/*
+** Attach PARTITION and ORDER BY clauses pPartition and pOrderBy to window
+** pWin. Also, if parameter pBase is not NULL, set pWin->zBase to the
+** equivalent nul-terminated string.
+*/
+SQLITE_PRIVATE Window *sqlite3WindowAssemble(
+ Parse *pParse,
+ Window *pWin,
+ ExprList *pPartition,
+ ExprList *pOrderBy,
+ Token *pBase
+){
+ if( pWin ){
+ pWin->pPartition = pPartition;
+ pWin->pOrderBy = pOrderBy;
+ if( pBase ){
+ pWin->zBase = sqlite3DbStrNDup(pParse->db, pBase->z, pBase->n);
+ }
+ }else{
+ sqlite3ExprListDelete(pParse->db, pPartition);
+ sqlite3ExprListDelete(pParse->db, pOrderBy);
+ }
+ return pWin;
+}
+
+/*
+** Window *pWin has just been created from a WINDOW clause. Tokne pBase
+** is the base window. Earlier windows from the same WINDOW clause are
+** stored in the linked list starting at pWin->pNextWin. This function
+** either updates *pWin according to the base specification, or else
+** leaves an error in pParse.
+*/
+SQLITE_PRIVATE void sqlite3WindowChain(Parse *pParse, Window *pWin, Window *pList){
+ if( pWin->zBase ){
+ sqlite3 *db = pParse->db;
+ Window *pExist = windowFind(pParse, pList, pWin->zBase);
+ if( pExist ){
+ const char *zErr = 0;
+ /* Check for errors */
+ if( pWin->pPartition ){
+ zErr = "PARTITION clause";
+ }else if( pExist->pOrderBy && pWin->pOrderBy ){
+ zErr = "ORDER BY clause";
+ }else if( pExist->bImplicitFrame==0 ){
+ zErr = "frame specification";
+ }
+ if( zErr ){
+ sqlite3ErrorMsg(pParse,
+ "cannot override %s of window: %s", zErr, pWin->zBase
+ );
+ }else{
+ pWin->pPartition = sqlite3ExprListDup(db, pExist->pPartition, 0);
+ if( pExist->pOrderBy ){
+ assert( pWin->pOrderBy==0 );
+ pWin->pOrderBy = sqlite3ExprListDup(db, pExist->pOrderBy, 0);
+ }
+ sqlite3DbFree(db, pWin->zBase);
+ pWin->zBase = 0;
+ }
+ }
+ }
+}
+
/*
** Attach window object pWin to expression p.
*/
SQLITE_PRIVATE void sqlite3WindowAttach(Parse *pParse, Expr *p, Window *pWin){
if( p ){
- /* This routine is only called for the parser. If pWin was not
- ** allocated due to an OOM, then the parser would fail before ever
- ** invoking this routine */
- if( ALWAYS(pWin) ){
- p->pWin = pWin;
- pWin->pOwner = p;
- if( p->flags & EP_Distinct ){
- sqlite3ErrorMsg(pParse,
- "DISTINCT is not supported for window functions");
- }
+ assert( p->op==TK_FUNCTION );
+ assert( pWin );
+ p->y.pWin = pWin;
+ ExprSetProperty(p, EP_WinFunc);
+ pWin->pOwner = p;
+ if( (p->flags & EP_Distinct) && pWin->eFrmType!=TK_FILTER ){
+ sqlite3ErrorMsg(pParse,
+ "DISTINCT is not supported for window functions"
+ );
}
}else{
sqlite3WindowDelete(pParse->db, pWin);
}
}
+/*
+** Possibly link window pWin into the list at pSel->pWin (window functions
+** to be processed as part of SELECT statement pSel). The window is linked
+** in if either (a) there are no other windows already linked to this
+** SELECT, or (b) the windows already linked use a compatible window frame.
+*/
+SQLITE_PRIVATE void sqlite3WindowLink(Select *pSel, Window *pWin){
+ if( 0==pSel->pWin
+ || 0==sqlite3WindowCompare(0, pSel->pWin, pWin, 0)
+ ){
+ pWin->pNextWin = pSel->pWin;
+ if( pSel->pWin ){
+ pSel->pWin->ppThis = &pWin->pNextWin;
+ }
+ pSel->pWin = pWin;
+ pWin->ppThis = &pSel->pWin;
+ }
+}
+
/*
** Return 0 if the two window objects are identical, or non-zero otherwise.
** Identical window objects can be processed in a single scan.
*/
-SQLITE_PRIVATE int sqlite3WindowCompare(Parse *pParse, Window *p1, Window *p2){
- if( p1->eType!=p2->eType ) return 1;
+SQLITE_PRIVATE int sqlite3WindowCompare(Parse *pParse, Window *p1, Window *p2, int bFilter){
+ if( p1->eFrmType!=p2->eFrmType ) return 1;
if( p1->eStart!=p2->eStart ) return 1;
if( p1->eEnd!=p2->eEnd ) return 1;
+ if( p1->eExclude!=p2->eExclude ) return 1;
if( sqlite3ExprCompare(pParse, p1->pStart, p2->pStart, -1) ) return 1;
if( sqlite3ExprCompare(pParse, p1->pEnd, p2->pEnd, -1) ) return 1;
if( sqlite3ExprListCompare(p1->pPartition, p2->pPartition, -1) ) return 1;
if( sqlite3ExprListCompare(p1->pOrderBy, p2->pOrderBy, -1) ) return 1;
+ if( bFilter ){
+ if( sqlite3ExprCompare(pParse, p1->pFilter, p2->pFilter, -1) ) return 1;
+ }
return 0;
}
@@ -144652,12 +147984,27 @@ SQLITE_PRIVATE int sqlite3WindowCompare(Parse *pParse, Window *p1, Window *p2){
SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Window *pMWin){
Window *pWin;
Vdbe *v = sqlite3GetVdbe(pParse);
- int nPart = (pMWin->pPartition ? pMWin->pPartition->nExpr : 0);
- nPart += (pMWin->pOrderBy ? pMWin->pOrderBy->nExpr : 0);
- if( nPart ){
+
+ /* Allocate registers to use for PARTITION BY values, if any. Initialize
+ ** said registers to NULL. */
+ if( pMWin->pPartition ){
+ int nExpr = pMWin->pPartition->nExpr;
pMWin->regPart = pParse->nMem+1;
- pParse->nMem += nPart;
- sqlite3VdbeAddOp3(v, OP_Null, 0, pMWin->regPart, pMWin->regPart+nPart-1);
+ pParse->nMem += nExpr;
+ sqlite3VdbeAddOp3(v, OP_Null, 0, pMWin->regPart, pMWin->regPart+nExpr-1);
+ }
+
+ pMWin->regOne = ++pParse->nMem;
+ sqlite3VdbeAddOp2(v, OP_Integer, 1, pMWin->regOne);
+
+ if( pMWin->eExclude ){
+ pMWin->regStartRowid = ++pParse->nMem;
+ pMWin->regEndRowid = ++pParse->nMem;
+ pMWin->csrApp = pParse->nTab++;
+ sqlite3VdbeAddOp2(v, OP_Integer, 1, pMWin->regStartRowid);
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pMWin->regEndRowid);
+ sqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->csrApp, pMWin->iEphCsr);
+ return;
}
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
@@ -144676,8 +148023,8 @@ SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Window *pMWin){
pWin->regApp = pParse->nMem+1;
pParse->nMem += 3;
if( pKeyInfo && pWin->pFunc->zName[1]=='i' ){
- assert( pKeyInfo->aSortOrder[0]==0 );
- pKeyInfo->aSortOrder[0] = 1;
+ assert( pKeyInfo->aSortFlags[0]==0 );
+ pKeyInfo->aSortFlags[0] = KEYINFO_ORDER_DESC;
}
sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pWin->csrApp, 2);
sqlite3VdbeAppendP4(v, pKeyInfo, P4_KEYINFO);
@@ -144686,20 +148033,24 @@ SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Window *pMWin){
else if( p->zName==nth_valueName || p->zName==first_valueName ){
/* Allocate two registers at pWin->regApp. These will be used to
** store the start and end index of the current frame. */
- assert( pMWin->iEphCsr );
pWin->regApp = pParse->nMem+1;
pWin->csrApp = pParse->nTab++;
pParse->nMem += 2;
sqlite3VdbeAddOp2(v, OP_OpenDup, pWin->csrApp, pMWin->iEphCsr);
}
else if( p->zName==leadName || p->zName==lagName ){
- assert( pMWin->iEphCsr );
pWin->csrApp = pParse->nTab++;
sqlite3VdbeAddOp2(v, OP_OpenDup, pWin->csrApp, pMWin->iEphCsr);
}
}
}
+#define WINDOW_STARTING_INT 0
+#define WINDOW_ENDING_INT 1
+#define WINDOW_NTH_VALUE_INT 2
+#define WINDOW_STARTING_NUM 3
+#define WINDOW_ENDING_NUM 4
+
/*
** A "PRECEDING " (eCond==0) or "FOLLOWING " (eCond==1) or the
** value of the second argument to nth_value() (eCond==2) has just been
@@ -144707,25 +148058,43 @@ SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Window *pMWin){
** code to check that the value is a non-negative integer and throws an
** exception if it is not.
*/
-static void windowCheckIntValue(Parse *pParse, int reg, int eCond){
+static void windowCheckValue(Parse *pParse, int reg, int eCond){
static const char *azErr[] = {
"frame starting offset must be a non-negative integer",
"frame ending offset must be a non-negative integer",
- "second argument to nth_value must be a positive integer"
+ "second argument to nth_value must be a positive integer",
+ "frame starting offset must be a non-negative number",
+ "frame ending offset must be a non-negative number",
};
- static int aOp[] = { OP_Ge, OP_Ge, OP_Gt };
+ static int aOp[] = { OP_Ge, OP_Ge, OP_Gt, OP_Ge, OP_Ge };
Vdbe *v = sqlite3GetVdbe(pParse);
int regZero = sqlite3GetTempReg(pParse);
- assert( eCond==0 || eCond==1 || eCond==2 );
+ assert( eCond>=0 && eCond=WINDOW_STARTING_NUM ){
+ int regString = sqlite3GetTempReg(pParse);
+ sqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
+ sqlite3VdbeAddOp3(v, OP_Ge, regString, sqlite3VdbeCurrentAddr(v)+2, reg);
+ sqlite3VdbeChangeP5(v, SQLITE_AFF_NUMERIC|SQLITE_JUMPIFNULL);
+ VdbeCoverage(v);
+ assert( eCond==3 || eCond==4 );
+ VdbeCoverageIf(v, eCond==3);
+ VdbeCoverageIf(v, eCond==4);
+ }else{
+ sqlite3VdbeAddOp2(v, OP_MustBeInt, reg, sqlite3VdbeCurrentAddr(v)+2);
+ VdbeCoverage(v);
+ assert( eCond==0 || eCond==1 || eCond==2 );
+ VdbeCoverageIf(v, eCond==0);
+ VdbeCoverageIf(v, eCond==1);
+ VdbeCoverageIf(v, eCond==2);
+ }
sqlite3VdbeAddOp3(v, aOp[eCond], regZero, sqlite3VdbeCurrentAddr(v)+2, reg);
- VdbeCoverageNeverNullIf(v, eCond==0);
- VdbeCoverageNeverNullIf(v, eCond==1);
+ VdbeCoverageNeverNullIf(v, eCond==0); /* NULL case captured by */
+ VdbeCoverageNeverNullIf(v, eCond==1); /* the OP_MustBeInt */
VdbeCoverageNeverNullIf(v, eCond==2);
+ VdbeCoverageNeverNullIf(v, eCond==3); /* NULL case caught by */
+ VdbeCoverageNeverNullIf(v, eCond==4); /* the OP_Ge */
+ sqlite3MayAbort(pParse);
sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort);
sqlite3VdbeAppendP4(v, (void*)azErr[eCond], P4_STATIC);
sqlite3ReleaseTempReg(pParse, regZero);
@@ -144740,6 +148109,108 @@ static int windowArgCount(Window *pWin){
return (pList ? pList->nExpr : 0);
}
+typedef struct WindowCodeArg WindowCodeArg;
+typedef struct WindowCsrAndReg WindowCsrAndReg;
+
+/*
+** See comments above struct WindowCodeArg.
+*/
+struct WindowCsrAndReg {
+ int csr; /* Cursor number */
+ int reg; /* First in array of peer values */
+};
+
+/*
+** A single instance of this structure is allocated on the stack by
+** sqlite3WindowCodeStep() and a pointer to it passed to the various helper
+** routines. This is to reduce the number of arguments required by each
+** helper function.
+**
+** regArg:
+** Each window function requires an accumulator register (just as an
+** ordinary aggregate function does). This variable is set to the first
+** in an array of accumulator registers - one for each window function
+** in the WindowCodeArg.pMWin list.
+**
+** eDelete:
+** The window functions implementation sometimes caches the input rows
+** that it processes in a temporary table. If it is not zero, this
+** variable indicates when rows may be removed from the temp table (in
+** order to reduce memory requirements - it would always be safe just
+** to leave them there). Possible values for eDelete are:
+**
+** WINDOW_RETURN_ROW:
+** An input row can be discarded after it is returned to the caller.
+**
+** WINDOW_AGGINVERSE:
+** An input row can be discarded after the window functions xInverse()
+** callbacks have been invoked in it.
+**
+** WINDOW_AGGSTEP:
+** An input row can be discarded after the window functions xStep()
+** callbacks have been invoked in it.
+**
+** start,current,end
+** Consider a window-frame similar to the following:
+**
+** (ORDER BY a, b GROUPS BETWEEN 2 PRECEDING AND 2 FOLLOWING)
+**
+** The windows functions implmentation caches the input rows in a temp
+** table, sorted by "a, b" (it actually populates the cache lazily, and
+** aggressively removes rows once they are no longer required, but that's
+** a mere detail). It keeps three cursors open on the temp table. One
+** (current) that points to the next row to return to the query engine
+** once its window function values have been calculated. Another (end)
+** points to the next row to call the xStep() method of each window function
+** on (so that it is 2 groups ahead of current). And a third (start) that
+** points to the next row to call the xInverse() method of each window
+** function on.
+**
+** Each cursor (start, current and end) consists of a VDBE cursor
+** (WindowCsrAndReg.csr) and an array of registers (starting at
+** WindowCodeArg.reg) that always contains a copy of the peer values
+** read from the corresponding cursor.
+**
+** Depending on the window-frame in question, all three cursors may not
+** be required. In this case both WindowCodeArg.csr and reg are set to
+** 0.
+*/
+struct WindowCodeArg {
+ Parse *pParse; /* Parse context */
+ Window *pMWin; /* First in list of functions being processed */
+ Vdbe *pVdbe; /* VDBE object */
+ int addrGosub; /* OP_Gosub to this address to return one row */
+ int regGosub; /* Register used with OP_Gosub(addrGosub) */
+ int regArg; /* First in array of accumulator registers */
+ int eDelete; /* See above */
+
+ WindowCsrAndReg start;
+ WindowCsrAndReg current;
+ WindowCsrAndReg end;
+};
+
+/*
+** Generate VM code to read the window frames peer values from cursor csr into
+** an array of registers starting at reg.
+*/
+static void windowReadPeerValues(
+ WindowCodeArg *p,
+ int csr,
+ int reg
+){
+ Window *pMWin = p->pMWin;
+ ExprList *pOrderBy = pMWin->pOrderBy;
+ if( pOrderBy ){
+ Vdbe *v = sqlite3GetVdbe(p->pParse);
+ ExprList *pPart = pMWin->pPartition;
+ int iColOff = pMWin->nBufferCol + (pPart ? pPart->nExpr : 0);
+ int i;
+ for(i=0; inExpr; i++){
+ sqlite3VdbeAddOp3(v, OP_Column, csr, iColOff+i, reg+i);
+ }
+ }
+}
+
/*
** Generate VM code to invoke either xStep() (if bInverse is 0) or
** xInverse (if bInverse is non-zero) for each window function in the
@@ -144760,41 +148231,39 @@ static int windowArgCount(Window *pWin){
** number of rows in the current partition.
*/
static void windowAggStep(
- Parse *pParse,
+ WindowCodeArg *p,
Window *pMWin, /* Linked list of window functions */
int csr, /* Read arguments from this cursor */
int bInverse, /* True to invoke xInverse instead of xStep */
- int reg, /* Array of registers */
- int regPartSize /* Register containing size of partition */
+ int reg /* Array of registers */
){
+ Parse *pParse = p->pParse;
Vdbe *v = sqlite3GetVdbe(pParse);
Window *pWin;
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
- int flags = pWin->pFunc->funcFlags;
+ FuncDef *pFunc = pWin->pFunc;
int regArg;
- int nArg = windowArgCount(pWin);
+ int nArg = pWin->bExprArgs ? 0 : windowArgCount(pWin);
+ int i;
- if( csr>=0 ){
- int i;
- for(i=0; ieStart!=TK_UNBOUNDED );
+
+ /* All OVER clauses in the same window function aggregate step must
+ ** be the same. */
+ assert( pWin==pMWin || sqlite3WindowCompare(pParse,pWin,pMWin,0)==0 );
+
+ for(i=0; izName!=nth_valueName ){
sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol+i, reg+i);
+ }else{
+ sqlite3VdbeAddOp3(v, OP_Column, pMWin->iEphCsr, pWin->iArgCol+i, reg+i);
}
- regArg = reg;
- if( flags & SQLITE_FUNC_WINDOW_SIZE ){
- if( nArg==0 ){
- regArg = regPartSize;
- }else{
- sqlite3VdbeAddOp2(v, OP_SCopy, regPartSize, reg+nArg);
- }
- nArg++;
- }
- }else{
- assert( !(flags & SQLITE_FUNC_WINDOW_SIZE) );
- regArg = reg + pWin->iArgCol;
}
+ regArg = reg;
- if( (pWin->pFunc->funcFlags & SQLITE_FUNC_MINMAX)
- && pWin->eStart!=TK_UNBOUNDED
+ if( pMWin->regStartRowid==0
+ && (pFunc->funcFlags & SQLITE_FUNC_MINMAX)
+ && (pWin->eStart!=TK_UNBOUNDED)
){
int addrIsNull = sqlite3VdbeAddOp1(v, OP_IsNull, regArg);
VdbeCoverage(v);
@@ -144811,34 +148280,40 @@ static void windowAggStep(
}
sqlite3VdbeJumpHere(v, addrIsNull);
}else if( pWin->regApp ){
- assert( pWin->pFunc->zName==nth_valueName
- || pWin->pFunc->zName==first_valueName
+ assert( pFunc->zName==nth_valueName
+ || pFunc->zName==first_valueName
);
assert( bInverse==0 || bInverse==1 );
sqlite3VdbeAddOp2(v, OP_AddImm, pWin->regApp+1-bInverse, 1);
- }else if( pWin->pFunc->zName==leadName
- || pWin->pFunc->zName==lagName
- ){
- /* no-op */
- }else{
+ }else if( pFunc->xSFunc!=noopStepFunc ){
int addrIf = 0;
if( pWin->pFilter ){
int regTmp;
- assert( nArg==0 || nArg==pWin->pOwner->x.pList->nExpr );
- assert( nArg || pWin->pOwner->x.pList==0 );
- if( csr>0 ){
- regTmp = sqlite3GetTempReg(pParse);
- sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol+nArg,regTmp);
- }else{
- regTmp = regArg + nArg;
- }
+ assert( pWin->bExprArgs || !nArg ||nArg==pWin->pOwner->x.pList->nExpr );
+ assert( pWin->bExprArgs || nArg ||pWin->pOwner->x.pList==0 );
+ regTmp = sqlite3GetTempReg(pParse);
+ sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol+nArg,regTmp);
addrIf = sqlite3VdbeAddOp3(v, OP_IfNot, regTmp, 0, 1);
VdbeCoverage(v);
- if( csr>0 ){
- sqlite3ReleaseTempReg(pParse, regTmp);
+ sqlite3ReleaseTempReg(pParse, regTmp);
+ }
+
+ if( pWin->bExprArgs ){
+ int iStart = sqlite3VdbeCurrentAddr(v);
+ VdbeOp *pOp, *pEnd;
+
+ nArg = pWin->pOwner->x.pList->nExpr;
+ regArg = sqlite3GetTempRange(pParse, nArg);
+ sqlite3ExprCodeExprList(pParse, pWin->pOwner->x.pList, regArg, 0, 0);
+
+ pEnd = sqlite3VdbeGetOp(v, -1);
+ for(pOp=sqlite3VdbeGetOp(v, iStart); pOp<=pEnd; pOp++){
+ if( pOp->opcode==OP_Column && pOp->p1==pWin->iEphCsr ){
+ pOp->p1 = csr;
+ }
}
}
- if( pWin->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){
+ if( pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){
CollSeq *pColl;
assert( nArg>0 );
pColl = sqlite3ExprNNCollSeq(pParse, pWin->pOwner->x.pList->a[0].pExpr);
@@ -144846,45 +148321,56 @@ static void windowAggStep(
}
sqlite3VdbeAddOp3(v, bInverse? OP_AggInverse : OP_AggStep,
bInverse, regArg, pWin->regAccum);
- sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
+ sqlite3VdbeAppendP4(v, pFunc, P4_FUNCDEF);
sqlite3VdbeChangeP5(v, (u8)nArg);
+ if( pWin->bExprArgs ){
+ sqlite3ReleaseTempRange(pParse, regArg, nArg);
+ }
if( addrIf ) sqlite3VdbeJumpHere(v, addrIf);
}
}
}
/*
-** Generate VM code to invoke either xValue() (bFinal==0) or xFinalize()
-** (bFinal==1) for each window function in the linked list starting at
+** Values that may be passed as the second argument to windowCodeOp().
+*/
+#define WINDOW_RETURN_ROW 1
+#define WINDOW_AGGINVERSE 2
+#define WINDOW_AGGSTEP 3
+
+/*
+** Generate VM code to invoke either xValue() (bFin==0) or xFinalize()
+** (bFin==1) for each window function in the linked list starting at
** pMWin. Or, for built-in window-functions that do not use the standard
** API, generate the equivalent VM code.
*/
-static void windowAggFinal(Parse *pParse, Window *pMWin, int bFinal){
+static void windowAggFinal(WindowCodeArg *p, int bFin){
+ Parse *pParse = p->pParse;
+ Window *pMWin = p->pMWin;
Vdbe *v = sqlite3GetVdbe(pParse);
Window *pWin;
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
- if( (pWin->pFunc->funcFlags & SQLITE_FUNC_MINMAX)
- && pWin->eStart!=TK_UNBOUNDED
+ if( pMWin->regStartRowid==0
+ && (pWin->pFunc->funcFlags & SQLITE_FUNC_MINMAX)
+ && (pWin->eStart!=TK_UNBOUNDED)
){
sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
sqlite3VdbeAddOp1(v, OP_Last, pWin->csrApp);
VdbeCoverage(v);
sqlite3VdbeAddOp3(v, OP_Column, pWin->csrApp, 0, pWin->regResult);
sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2);
- if( bFinal ){
- sqlite3VdbeAddOp1(v, OP_ResetSorter, pWin->csrApp);
- }
}else if( pWin->regApp ){
+ assert( pMWin->regStartRowid==0 );
}else{
- if( bFinal ){
- sqlite3VdbeAddOp2(v, OP_AggFinal, pWin->regAccum, windowArgCount(pWin));
+ int nArg = windowArgCount(pWin);
+ if( bFin ){
+ sqlite3VdbeAddOp2(v, OP_AggFinal, pWin->regAccum, nArg);
sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
sqlite3VdbeAddOp2(v, OP_Copy, pWin->regAccum, pWin->regResult);
sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
}else{
- sqlite3VdbeAddOp3(v, OP_AggValue, pWin->regAccum, windowArgCount(pWin),
- pWin->regResult);
+ sqlite3VdbeAddOp3(v, OP_AggValue,pWin->regAccum,nArg,pWin->regResult);
sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
}
}
@@ -144892,66 +148378,102 @@ static void windowAggFinal(Parse *pParse, Window *pMWin, int bFinal){
}
/*
-** This function generates VM code to invoke the sub-routine at address
-** lblFlushPart once for each partition with the entire partition cached in
-** the Window.iEphCsr temp table.
+** Generate code to calculate the current values of all window functions in the
+** p->pMWin list by doing a full scan of the current window frame. Store the
+** results in the Window.regResult registers, ready to return the upper
+** layer.
*/
-static void windowPartitionCache(
- Parse *pParse,
- Select *p, /* The rewritten SELECT statement */
- WhereInfo *pWInfo, /* WhereInfo to call WhereEnd() on */
- int regFlushPart, /* Register to use with Gosub lblFlushPart */
- int lblFlushPart, /* Subroutine to Gosub to */
- int *pRegSize /* OUT: Register containing partition size */
-){
- Window *pMWin = p->pWin;
- Vdbe *v = sqlite3GetVdbe(pParse);
- int iSubCsr = p->pSrc->a[0].iCursor;
- int nSub = p->pSrc->a[0].pTab->nCol;
- int k;
+static void windowFullScan(WindowCodeArg *p){
+ Window *pWin;
+ Parse *pParse = p->pParse;
+ Window *pMWin = p->pMWin;
+ Vdbe *v = p->pVdbe;
- int reg = pParse->nMem+1;
- int regRecord = reg+nSub;
- int regRowid = regRecord+1;
+ int regCRowid = 0; /* Current rowid value */
+ int regCPeer = 0; /* Current peer values */
+ int regRowid = 0; /* AggStep rowid value */
+ int regPeer = 0; /* AggStep peer values */
- *pRegSize = regRowid;
- pParse->nMem += nSub + 2;
+ int nPeer;
+ int lblNext;
+ int lblBrk;
+ int addrNext;
+ int csr;
- /* Load the column values for the row returned by the sub-select
- ** into an array of registers starting at reg. */
- for(k=0; kcsrApp;
+ nPeer = (pMWin->pOrderBy ? pMWin->pOrderBy->nExpr : 0);
+
+ lblNext = sqlite3VdbeMakeLabel(pParse);
+ lblBrk = sqlite3VdbeMakeLabel(pParse);
+
+ regCRowid = sqlite3GetTempReg(pParse);
+ regRowid = sqlite3GetTempReg(pParse);
+ if( nPeer ){
+ regCPeer = sqlite3GetTempRange(pParse, nPeer);
+ regPeer = sqlite3GetTempRange(pParse, nPeer);
}
- sqlite3VdbeAddOp3(v, OP_MakeRecord, reg, nSub, regRecord);
- /* Check if this is the start of a new partition. If so, call the
- ** flush_partition sub-routine. */
- if( pMWin->pPartition ){
+ sqlite3VdbeAddOp2(v, OP_Rowid, pMWin->iEphCsr, regCRowid);
+ windowReadPeerValues(p, pMWin->iEphCsr, regCPeer);
+
+ for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
+ sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
+ }
+
+ sqlite3VdbeAddOp3(v, OP_SeekGE, csr, lblBrk, pMWin->regStartRowid);
+ VdbeCoverage(v);
+ addrNext = sqlite3VdbeCurrentAddr(v);
+ sqlite3VdbeAddOp2(v, OP_Rowid, csr, regRowid);
+ sqlite3VdbeAddOp3(v, OP_Gt, pMWin->regEndRowid, lblBrk, regRowid);
+ VdbeCoverageNeverNull(v);
+
+ if( pMWin->eExclude==TK_CURRENT ){
+ sqlite3VdbeAddOp3(v, OP_Eq, regCRowid, lblNext, regRowid);
+ VdbeCoverageNeverNull(v);
+ }else if( pMWin->eExclude!=TK_NO ){
int addr;
- ExprList *pPart = pMWin->pPartition;
- int nPart = pPart->nExpr;
- int regNewPart = reg + pMWin->nBufferCol;
- KeyInfo *pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pPart, 0, 0);
+ int addrEq = 0;
+ KeyInfo *pKeyInfo = 0;
- addr = sqlite3VdbeAddOp3(v, OP_Compare, regNewPart, pMWin->regPart,nPart);
- sqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
- sqlite3VdbeAddOp3(v, OP_Jump, addr+2, addr+4, addr+2);
- VdbeCoverageEqNe(v);
- sqlite3VdbeAddOp3(v, OP_Copy, regNewPart, pMWin->regPart, nPart-1);
- sqlite3VdbeAddOp2(v, OP_Gosub, regFlushPart, lblFlushPart);
- VdbeComment((v, "call flush_partition"));
+ if( pMWin->pOrderBy ){
+ pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pMWin->pOrderBy, 0, 0);
+ }
+ if( pMWin->eExclude==TK_TIES ){
+ addrEq = sqlite3VdbeAddOp3(v, OP_Eq, regCRowid, 0, regRowid);
+ VdbeCoverageNeverNull(v);
+ }
+ if( pKeyInfo ){
+ windowReadPeerValues(p, csr, regPeer);
+ sqlite3VdbeAddOp3(v, OP_Compare, regPeer, regCPeer, nPeer);
+ sqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
+ addr = sqlite3VdbeCurrentAddr(v)+1;
+ sqlite3VdbeAddOp3(v, OP_Jump, addr, lblNext, addr);
+ VdbeCoverageEqNe(v);
+ }else{
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, lblNext);
+ }
+ if( addrEq ) sqlite3VdbeJumpHere(v, addrEq);
}
- /* Buffer the current row in the ephemeral table. */
- sqlite3VdbeAddOp2(v, OP_NewRowid, pMWin->iEphCsr, regRowid);
- sqlite3VdbeAddOp3(v, OP_Insert, pMWin->iEphCsr, regRecord, regRowid);
+ windowAggStep(p, pMWin, csr, 0, p->regArg);
- /* End of the input loop */
- sqlite3WhereEnd(pWInfo);
+ sqlite3VdbeResolveLabel(v, lblNext);
+ sqlite3VdbeAddOp2(v, OP_Next, csr, addrNext);
+ VdbeCoverage(v);
+ sqlite3VdbeJumpHere(v, addrNext-1);
+ sqlite3VdbeJumpHere(v, addrNext+1);
+ sqlite3ReleaseTempReg(pParse, regRowid);
+ sqlite3ReleaseTempReg(pParse, regCRowid);
+ if( nPeer ){
+ sqlite3ReleaseTempRange(pParse, regPeer, nPeer);
+ sqlite3ReleaseTempRange(pParse, regCPeer, nPeer);
+ }
- /* Invoke "flush_partition" to deal with the final (or only) partition */
- sqlite3VdbeAddOp2(v, OP_Gosub, regFlushPart, lblFlushPart);
- VdbeComment((v, "call flush_partition"));
+ windowAggFinal(p, 1);
+ VdbeModuleComment((v, "windowFullScan end"));
}
/*
@@ -144967,110 +148489,74 @@ static void windowPartitionCache(
** lag()
** lead()
*/
-static void windowReturnOneRow(
- Parse *pParse,
- Window *pMWin,
- int regGosub,
- int addrGosub
-){
- Vdbe *v = sqlite3GetVdbe(pParse);
- Window *pWin;
- for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
- FuncDef *pFunc = pWin->pFunc;
- if( pFunc->zName==nth_valueName
- || pFunc->zName==first_valueName
- ){
- int csr = pWin->csrApp;
- int lbl = sqlite3VdbeMakeLabel(v);
- int tmpReg = sqlite3GetTempReg(pParse);
- sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
+static void windowReturnOneRow(WindowCodeArg *p){
+ Window *pMWin = p->pMWin;
+ Vdbe *v = p->pVdbe;
- if( pFunc->zName==nth_valueName ){
- sqlite3VdbeAddOp3(v, OP_Column, pMWin->iEphCsr, pWin->iArgCol+1,tmpReg);
- windowCheckIntValue(pParse, tmpReg, 2);
- }else{
- sqlite3VdbeAddOp2(v, OP_Integer, 1, tmpReg);
- }
- sqlite3VdbeAddOp3(v, OP_Add, tmpReg, pWin->regApp, tmpReg);
- sqlite3VdbeAddOp3(v, OP_Gt, pWin->regApp+1, lbl, tmpReg);
- VdbeCoverageNeverNull(v);
- sqlite3VdbeAddOp3(v, OP_SeekRowid, csr, 0, tmpReg);
- VdbeCoverageNeverTaken(v);
- sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
- sqlite3VdbeResolveLabel(v, lbl);
- sqlite3ReleaseTempReg(pParse, tmpReg);
- }
- else if( pFunc->zName==leadName || pFunc->zName==lagName ){
- int nArg = pWin->pOwner->x.pList->nExpr;
- int iEph = pMWin->iEphCsr;
- int csr = pWin->csrApp;
- int lbl = sqlite3VdbeMakeLabel(v);
- int tmpReg = sqlite3GetTempReg(pParse);
+ if( pMWin->regStartRowid ){
+ windowFullScan(p);
+ }else{
+ Parse *pParse = p->pParse;
+ Window *pWin;
- if( nArg<3 ){
+ for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
+ FuncDef *pFunc = pWin->pFunc;
+ if( pFunc->zName==nth_valueName
+ || pFunc->zName==first_valueName
+ ){
+ int csr = pWin->csrApp;
+ int lbl = sqlite3VdbeMakeLabel(pParse);
+ int tmpReg = sqlite3GetTempReg(pParse);
sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
- }else{
- sqlite3VdbeAddOp3(v, OP_Column, iEph, pWin->iArgCol+2, pWin->regResult);
+
+ if( pFunc->zName==nth_valueName ){
+ sqlite3VdbeAddOp3(v, OP_Column,pMWin->iEphCsr,pWin->iArgCol+1,tmpReg);
+ windowCheckValue(pParse, tmpReg, 2);
+ }else{
+ sqlite3VdbeAddOp2(v, OP_Integer, 1, tmpReg);
+ }
+ sqlite3VdbeAddOp3(v, OP_Add, tmpReg, pWin->regApp, tmpReg);
+ sqlite3VdbeAddOp3(v, OP_Gt, pWin->regApp+1, lbl, tmpReg);
+ VdbeCoverageNeverNull(v);
+ sqlite3VdbeAddOp3(v, OP_SeekRowid, csr, 0, tmpReg);
+ VdbeCoverageNeverTaken(v);
+ sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
+ sqlite3VdbeResolveLabel(v, lbl);
+ sqlite3ReleaseTempReg(pParse, tmpReg);
}
- sqlite3VdbeAddOp2(v, OP_Rowid, iEph, tmpReg);
- if( nArg<2 ){
- int val = (pFunc->zName==leadName ? 1 : -1);
- sqlite3VdbeAddOp2(v, OP_AddImm, tmpReg, val);
- }else{
- int op = (pFunc->zName==leadName ? OP_Add : OP_Subtract);
- int tmpReg2 = sqlite3GetTempReg(pParse);
- sqlite3VdbeAddOp3(v, OP_Column, iEph, pWin->iArgCol+1, tmpReg2);
- sqlite3VdbeAddOp3(v, op, tmpReg2, tmpReg, tmpReg);
- sqlite3ReleaseTempReg(pParse, tmpReg2);
+ else if( pFunc->zName==leadName || pFunc->zName==lagName ){
+ int nArg = pWin->pOwner->x.pList->nExpr;
+ int csr = pWin->csrApp;
+ int lbl = sqlite3VdbeMakeLabel(pParse);
+ int tmpReg = sqlite3GetTempReg(pParse);
+ int iEph = pMWin->iEphCsr;
+
+ if( nArg<3 ){
+ sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
+ }else{
+ sqlite3VdbeAddOp3(v, OP_Column, iEph,pWin->iArgCol+2,pWin->regResult);
+ }
+ sqlite3VdbeAddOp2(v, OP_Rowid, iEph, tmpReg);
+ if( nArg<2 ){
+ int val = (pFunc->zName==leadName ? 1 : -1);
+ sqlite3VdbeAddOp2(v, OP_AddImm, tmpReg, val);
+ }else{
+ int op = (pFunc->zName==leadName ? OP_Add : OP_Subtract);
+ int tmpReg2 = sqlite3GetTempReg(pParse);
+ sqlite3VdbeAddOp3(v, OP_Column, iEph, pWin->iArgCol+1, tmpReg2);
+ sqlite3VdbeAddOp3(v, op, tmpReg2, tmpReg, tmpReg);
+ sqlite3ReleaseTempReg(pParse, tmpReg2);
+ }
+
+ sqlite3VdbeAddOp3(v, OP_SeekRowid, csr, lbl, tmpReg);
+ VdbeCoverage(v);
+ sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
+ sqlite3VdbeResolveLabel(v, lbl);
+ sqlite3ReleaseTempReg(pParse, tmpReg);
}
-
- sqlite3VdbeAddOp3(v, OP_SeekRowid, csr, lbl, tmpReg);
- VdbeCoverage(v);
- sqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
- sqlite3VdbeResolveLabel(v, lbl);
- sqlite3ReleaseTempReg(pParse, tmpReg);
}
}
- sqlite3VdbeAddOp2(v, OP_Gosub, regGosub, addrGosub);
-}
-
-/*
-** Invoke the code generated by windowReturnOneRow() and, optionally, the
-** xInverse() function for each window function, for one or more rows
-** from the Window.iEphCsr temp table. This routine generates VM code
-** similar to:
-**
-** while( regCtr>0 ){
-** regCtr--;
-** windowReturnOneRow()
-** if( bInverse ){
-** AggInverse
-** }
-** Next (Window.iEphCsr)
-** }
-*/
-static void windowReturnRows(
- Parse *pParse,
- Window *pMWin, /* List of window functions */
- int regCtr, /* Register containing number of rows */
- int regGosub, /* Register for Gosub addrGosub */
- int addrGosub, /* Address of sub-routine for ReturnOneRow */
- int regInvArg, /* Array of registers for xInverse args */
- int regInvSize /* Register containing size of partition */
-){
- int addr;
- Vdbe *v = sqlite3GetVdbe(pParse);
- windowAggFinal(pParse, pMWin, 0);
- addr = sqlite3VdbeAddOp3(v, OP_IfPos, regCtr, sqlite3VdbeCurrentAddr(v)+2 ,1);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Goto, 0, 0);
- windowReturnOneRow(pParse, pMWin, regGosub, addrGosub);
- if( regInvArg ){
- windowAggStep(pParse, pMWin, pMWin->iEphCsr, 1, regInvArg, regInvSize);
- }
- sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, addr);
- VdbeCoverage(v);
- sqlite3VdbeJumpHere(v, addr+1); /* The OP_Goto */
+ sqlite3VdbeAddOp2(v, OP_Gosub, p->regGosub, p->addrGosub);
}
/*
@@ -145088,17 +148574,17 @@ static int windowInitAccum(Parse *pParse, Window *pMWin){
FuncDef *pFunc = pWin->pFunc;
sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
nArg = MAX(nArg, windowArgCount(pWin));
- if( pFunc->zName==nth_valueName
- || pFunc->zName==first_valueName
- ){
- sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp);
- sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
- }
+ if( pMWin->regStartRowid==0 ){
+ if( pFunc->zName==nth_valueName || pFunc->zName==first_valueName ){
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp);
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
+ }
- if( (pFunc->funcFlags & SQLITE_FUNC_MINMAX) && pWin->csrApp ){
- assert( pWin->eStart!=TK_UNBOUNDED );
- sqlite3VdbeAddOp1(v, OP_ResetSorter, pWin->csrApp);
- sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
+ if( (pFunc->funcFlags & SQLITE_FUNC_MINMAX) && pWin->csrApp ){
+ assert( pWin->eStart!=TK_UNBOUNDED );
+ sqlite3VdbeAddOp1(v, OP_ResetSorter, pWin->csrApp);
+ sqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
+ }
}
}
regArg = pParse->nMem+1;
@@ -145106,672 +148592,343 @@ static int windowInitAccum(Parse *pParse, Window *pMWin){
return regArg;
}
+/*
+** Return true if the current frame should be cached in the ephemeral table,
+** even if there are no xInverse() calls required.
+*/
+static int windowCacheFrame(Window *pMWin){
+ Window *pWin;
+ if( pMWin->regStartRowid ) return 1;
+ for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
+ FuncDef *pFunc = pWin->pFunc;
+ if( (pFunc->zName==nth_valueName)
+ || (pFunc->zName==first_valueName)
+ || (pFunc->zName==leadName)
+ || (pFunc->zName==lagName)
+ ){
+ return 1;
+ }
+ }
+ return 0;
+}
/*
-** This function does the work of sqlite3WindowCodeStep() for all "ROWS"
-** window frame types except for "BETWEEN UNBOUNDED PRECEDING AND CURRENT
-** ROW". Pseudo-code for each follows.
-**
-** ROWS BETWEEN PRECEDING AND FOLLOWING
-**
-** ...
-** if( new partition ){
-** Gosub flush_partition
-** }
-** Insert (record in eph-table)
-** sqlite3WhereEnd()
-** Gosub flush_partition
-**
-** flush_partition:
-** Once {
-** OpenDup (iEphCsr -> csrStart)
-** OpenDup (iEphCsr -> csrEnd)
-** }
-** regStart = // PRECEDING expression
-** regEnd = // FOLLOWING expression
-** if( regStart<0 || regEnd<0 ){ error! }
-** Rewind (csr,csrStart,csrEnd) // if EOF goto flush_partition_done
-** Next(csrEnd) // if EOF skip Aggstep
-** Aggstep (csrEnd)
-** if( (regEnd--)<=0 ){
-** AggFinal (xValue)
-** Gosub addrGosub
-** Next(csr) // if EOF goto flush_partition_done
-** if( (regStart--)<=0 ){
-** AggInverse (csrStart)
-** Next(csrStart)
-** }
-** }
-** flush_partition_done:
-** ResetSorter (csr)
-** Return
-**
-** ROWS BETWEEN PRECEDING AND CURRENT ROW
-** ROWS BETWEEN CURRENT ROW AND FOLLOWING
-** ROWS BETWEEN UNBOUNDED PRECEDING AND FOLLOWING
-**
-** These are similar to the above. For "CURRENT ROW", intialize the
-** register to 0. For "UNBOUNDED PRECEDING" to infinity.
-**
-** ROWS BETWEEN PRECEDING AND UNBOUNDED FOLLOWING
-** ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
-**
-** Rewind (csr,csrStart,csrEnd) // if EOF goto flush_partition_done
-** while( 1 ){
-** Next(csrEnd) // Exit while(1) at EOF
-** Aggstep (csrEnd)
-** }
-** while( 1 ){
-** AggFinal (xValue)
-** Gosub addrGosub
-** Next(csr) // if EOF goto flush_partition_done
-** if( (regStart--)<=0 ){
-** AggInverse (csrStart)
-** Next(csrStart)
-** }
-** }
-**
-** For the "CURRENT ROW AND UNBOUNDED FOLLOWING" case, the final if()
-** condition is always true (as if regStart were initialized to 0).
-**
-** RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
-**
-** This is the only RANGE case handled by this routine. It modifies the
-** second while( 1 ) loop in "ROWS BETWEEN CURRENT ... UNBOUNDED..." to
-** be:
-**
-** while( 1 ){
-** AggFinal (xValue)
-** while( 1 ){
-** regPeer++
-** Gosub addrGosub
-** Next(csr) // if EOF goto flush_partition_done
-** if( new peer ) break;
-** }
-** while( (regPeer--)>0 ){
-** AggInverse (csrStart)
-** Next(csrStart)
-** }
-** }
-**
-** ROWS BETWEEN FOLLOWING AND FOLLOWING
-**
-** regEnd = regEnd - regStart
-** Rewind (csr,csrStart,csrEnd) // if EOF goto flush_partition_done
-** Aggstep (csrEnd)
-** Next(csrEnd) // if EOF fall-through
-** if( (regEnd--)<=0 ){
-** if( (regStart--)<=0 ){
-** AggFinal (xValue)
-** Gosub addrGosub
-** Next(csr) // if EOF goto flush_partition_done
-** }
-** AggInverse (csrStart)
-** Next (csrStart)
-** }
-**
-** ROWS BETWEEN PRECEDING AND PRECEDING
-**
-** Replace the bit after "Rewind" in the above with:
-**
-** if( (regEnd--)<=0 ){
-** AggStep (csrEnd)
-** Next (csrEnd)
-** }
-** AggFinal (xValue)
-** Gosub addrGosub
-** Next(csr) // if EOF goto flush_partition_done
-** if( (regStart--)<=0 ){
-** AggInverse (csr2)
-** Next (csr2)
-** }
+** regOld and regNew are each the first register in an array of size
+** pOrderBy->nExpr. This function generates code to compare the two
+** arrays of registers using the collation sequences and other comparison
+** parameters specified by pOrderBy.
**
+** If the two arrays are not equal, the contents of regNew is copied to
+** regOld and control falls through. Otherwise, if the contents of the arrays
+** are equal, an OP_Goto is executed. The address of the OP_Goto is returned.
*/
-static void windowCodeRowExprStep(
- Parse *pParse,
- Select *p,
- WhereInfo *pWInfo,
- int regGosub,
- int addrGosub
+static void windowIfNewPeer(
+ Parse *pParse,
+ ExprList *pOrderBy,
+ int regNew, /* First in array of new values */
+ int regOld, /* First in array of old values */
+ int addr /* Jump here */
){
- Window *pMWin = p->pWin;
Vdbe *v = sqlite3GetVdbe(pParse);
- int regFlushPart; /* Register for "Gosub flush_partition" */
- int lblFlushPart; /* Label for "Gosub flush_partition" */
- int lblFlushDone; /* Label for "Gosub flush_partition_done" */
-
- int regArg;
- int addr;
- int csrStart = pParse->nTab++;
- int csrEnd = pParse->nTab++;
- int regStart; /* Value of PRECEDING */
- int regEnd; /* Value of FOLLOWING */
- int addrGoto;
- int addrTop;
- int addrIfPos1 = 0;
- int addrIfPos2 = 0;
- int regSize = 0;
-
- assert( pMWin->eStart==TK_PRECEDING
- || pMWin->eStart==TK_CURRENT
- || pMWin->eStart==TK_FOLLOWING
- || pMWin->eStart==TK_UNBOUNDED
- );
- assert( pMWin->eEnd==TK_FOLLOWING
- || pMWin->eEnd==TK_CURRENT
- || pMWin->eEnd==TK_UNBOUNDED
- || pMWin->eEnd==TK_PRECEDING
- );
-
- /* Allocate register and label for the "flush_partition" sub-routine. */
- regFlushPart = ++pParse->nMem;
- lblFlushPart = sqlite3VdbeMakeLabel(v);
- lblFlushDone = sqlite3VdbeMakeLabel(v);
-
- regStart = ++pParse->nMem;
- regEnd = ++pParse->nMem;
-
- windowPartitionCache(pParse, p, pWInfo, regFlushPart, lblFlushPart, ®Size);
-
- addrGoto = sqlite3VdbeAddOp0(v, OP_Goto);
-
- /* Start of "flush_partition" */
- sqlite3VdbeResolveLabel(v, lblFlushPart);
- sqlite3VdbeAddOp2(v, OP_Once, 0, sqlite3VdbeCurrentAddr(v)+3);
- VdbeCoverage(v);
- VdbeComment((v, "Flush_partition subroutine"));
- sqlite3VdbeAddOp2(v, OP_OpenDup, csrStart, pMWin->iEphCsr);
- sqlite3VdbeAddOp2(v, OP_OpenDup, csrEnd, pMWin->iEphCsr);
-
- /* If either regStart or regEnd are not non-negative integers, throw
- ** an exception. */
- if( pMWin->pStart ){
- sqlite3ExprCode(pParse, pMWin->pStart, regStart);
- windowCheckIntValue(pParse, regStart, 0);
+ if( pOrderBy ){
+ int nVal = pOrderBy->nExpr;
+ KeyInfo *pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pOrderBy, 0, 0);
+ sqlite3VdbeAddOp3(v, OP_Compare, regOld, regNew, nVal);
+ sqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
+ sqlite3VdbeAddOp3(v, OP_Jump,
+ sqlite3VdbeCurrentAddr(v)+1, addr, sqlite3VdbeCurrentAddr(v)+1
+ );
+ VdbeCoverageEqNe(v);
+ sqlite3VdbeAddOp3(v, OP_Copy, regNew, regOld, nVal-1);
+ }else{
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, addr);
}
- if( pMWin->pEnd ){
- sqlite3ExprCode(pParse, pMWin->pEnd, regEnd);
- windowCheckIntValue(pParse, regEnd, 1);
+}
+
+/*
+** This function is called as part of generating VM programs for RANGE
+** offset PRECEDING/FOLLOWING frame boundaries. Assuming "ASC" order for
+** the ORDER BY term in the window, and that argument op is OP_Ge, it generates
+** code equivalent to:
+**
+** if( csr1.peerVal + regVal >= csr2.peerVal ) goto lbl;
+**
+** The value of parameter op may also be OP_Gt or OP_Le. In these cases the
+** operator in the above pseudo-code is replaced with ">" or "<=", respectively.
+**
+** If the sort-order for the ORDER BY term in the window is DESC, then the
+** comparison is reversed. Instead of adding regVal to csr1.peerVal, it is
+** subtracted. And the comparison operator is inverted to - ">=" becomes "<=",
+** ">" becomes "<", and so on. So, with DESC sort order, if the argument op
+** is OP_Ge, the generated code is equivalent to:
+**
+** if( csr1.peerVal - regVal <= csr2.peerVal ) goto lbl;
+**
+** A special type of arithmetic is used such that if csr1.peerVal is not
+** a numeric type (real or integer), then the result of the addition addition
+** or subtraction is a a copy of csr1.peerVal.
+*/
+static void windowCodeRangeTest(
+ WindowCodeArg *p,
+ int op, /* OP_Ge, OP_Gt, or OP_Le */
+ int csr1, /* Cursor number for cursor 1 */
+ int regVal, /* Register containing non-negative number */
+ int csr2, /* Cursor number for cursor 2 */
+ int lbl /* Jump destination if condition is true */
+){
+ Parse *pParse = p->pParse;
+ Vdbe *v = sqlite3GetVdbe(pParse);
+ ExprList *pOrderBy = p->pMWin->pOrderBy; /* ORDER BY clause for window */
+ int reg1 = sqlite3GetTempReg(pParse); /* Reg. for csr1.peerVal+regVal */
+ int reg2 = sqlite3GetTempReg(pParse); /* Reg. for csr2.peerVal */
+ int regString = ++pParse->nMem; /* Reg. for constant value '' */
+ int arith = OP_Add; /* OP_Add or OP_Subtract */
+ int addrGe; /* Jump destination */
+
+ assert( op==OP_Ge || op==OP_Gt || op==OP_Le );
+ assert( pOrderBy && pOrderBy->nExpr==1 );
+ if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_DESC ){
+ switch( op ){
+ case OP_Ge: op = OP_Le; break;
+ case OP_Gt: op = OP_Lt; break;
+ default: assert( op==OP_Le ); op = OP_Ge; break;
+ }
+ arith = OP_Subtract;
}
- /* If this is "ROWS FOLLOWING AND ROWS FOLLOWING", do:
+ /* Read the peer-value from each cursor into a register */
+ windowReadPeerValues(p, csr1, reg1);
+ windowReadPeerValues(p, csr2, reg2);
+
+ VdbeModuleComment((v, "CodeRangeTest: if( R%d %s R%d %s R%d ) goto lbl",
+ reg1, (arith==OP_Add ? "+" : "-"), regVal,
+ ((op==OP_Ge) ? ">=" : (op==OP_Le) ? "<=" : (op==OP_Gt) ? ">" : "<"), reg2
+ ));
+
+ /* Register reg1 currently contains csr1.peerVal (the peer-value from csr1).
+ ** This block adds (or subtracts for DESC) the numeric value in regVal
+ ** from it. Or, if reg1 is not numeric (it is a NULL, a text value or a blob),
+ ** then leave reg1 as it is. In pseudo-code, this is implemented as:
**
- ** if( regEnd='' ) goto addrGe;
+ ** reg1 = reg1 +/- regVal
+ ** addrGe:
+ **
+ ** Since all strings and blobs are greater-than-or-equal-to an empty string,
+ ** the add/subtract is skipped for these, as required. If reg1 is a NULL,
+ ** then the arithmetic is performed, but since adding or subtracting from
+ ** NULL is always NULL anyway, this case is handled as required too. */
+ sqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
+ addrGe = sqlite3VdbeAddOp3(v, OP_Ge, regString, 0, reg1);
+ VdbeCoverage(v);
+ sqlite3VdbeAddOp3(v, arith, regVal, reg1, reg1);
+ sqlite3VdbeJumpHere(v, addrGe);
+
+ /* If the BIGNULL flag is set for the ORDER BY, then it is required to
+ ** consider NULL values to be larger than all other values, instead of
+ ** the usual smaller. The VDBE opcodes OP_Ge and so on do not handle this
+ ** (and adding that capability causes a performance regression), so
+ ** instead if the BIGNULL flag is set then cases where either reg1 or
+ ** reg2 are NULL are handled separately in the following block. The code
+ ** generated is equivalent to:
+ **
+ ** if( reg1 IS NULL ){
+ ** if( op==OP_Ge ) goto lbl;
+ ** if( op==OP_Gt && reg2 IS NOT NULL ) goto lbl;
+ ** if( op==OP_Le && reg2 IS NULL ) goto lbl;
+ ** }else if( reg2 IS NULL ){
+ ** if( op==OP_Le ) goto lbl;
** }
- ** regEnd = regEnd - regStart;
- */
- if( pMWin->pEnd && pMWin->eStart==TK_FOLLOWING ){
- assert( pMWin->pStart!=0 );
- assert( pMWin->eEnd==TK_FOLLOWING );
- sqlite3VdbeAddOp3(v, OP_Ge, regStart, sqlite3VdbeCurrentAddr(v)+2, regEnd);
- VdbeCoverageNeverNull(v);
- sqlite3VdbeAddOp2(v, OP_Copy, regSize, regStart);
- sqlite3VdbeAddOp3(v, OP_Subtract, regStart, regEnd, regEnd);
- }
+ **
+ ** Additionally, if either reg1 or reg2 are NULL but the jump to lbl is
+ ** not taken, control jumps over the comparison operator coded below this
+ ** block. */
+ if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_BIGNULL ){
+ /* This block runs if reg1 contains a NULL. */
+ int addr = sqlite3VdbeAddOp1(v, OP_NotNull, reg1); VdbeCoverage(v);
+ switch( op ){
+ case OP_Ge:
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, lbl);
+ break;
+ case OP_Gt:
+ sqlite3VdbeAddOp2(v, OP_NotNull, reg2, lbl);
+ VdbeCoverage(v);
+ break;
+ case OP_Le:
+ sqlite3VdbeAddOp2(v, OP_IsNull, reg2, lbl);
+ VdbeCoverage(v);
+ break;
+ default: assert( op==OP_Lt ); /* no-op */ break;
+ }
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, sqlite3VdbeCurrentAddr(v)+3);
- if( pMWin->pStart && pMWin->eEnd==TK_PRECEDING ){
- assert( pMWin->pEnd!=0 );
- assert( pMWin->eStart==TK_PRECEDING );
- sqlite3VdbeAddOp3(v, OP_Le, regStart, sqlite3VdbeCurrentAddr(v)+3, regEnd);
- VdbeCoverageNeverNull(v);
- sqlite3VdbeAddOp2(v, OP_Copy, regSize, regStart);
- sqlite3VdbeAddOp2(v, OP_Copy, regSize, regEnd);
- }
-
- /* Initialize the accumulator register for each window function to NULL */
- regArg = windowInitAccum(pParse, pMWin);
-
- sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr, lblFlushDone);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Rewind, csrStart, lblFlushDone);
- VdbeCoverageNeverTaken(v);
- sqlite3VdbeChangeP5(v, 1);
- sqlite3VdbeAddOp2(v, OP_Rewind, csrEnd, lblFlushDone);
- VdbeCoverageNeverTaken(v);
- sqlite3VdbeChangeP5(v, 1);
-
- /* Invoke AggStep function for each window function using the row that
- ** csrEnd currently points to. Or, if csrEnd is already at EOF,
- ** do nothing. */
- addrTop = sqlite3VdbeCurrentAddr(v);
- if( pMWin->eEnd==TK_PRECEDING ){
- addrIfPos1 = sqlite3VdbeAddOp3(v, OP_IfPos, regEnd, 0 , 1);
- VdbeCoverage(v);
- }
- sqlite3VdbeAddOp2(v, OP_Next, csrEnd, sqlite3VdbeCurrentAddr(v)+2);
- VdbeCoverage(v);
- addr = sqlite3VdbeAddOp0(v, OP_Goto);
- windowAggStep(pParse, pMWin, csrEnd, 0, regArg, regSize);
- if( pMWin->eEnd==TK_UNBOUNDED ){
- sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
+ /* This block runs if reg1 is not NULL, but reg2 is. */
sqlite3VdbeJumpHere(v, addr);
- addrTop = sqlite3VdbeCurrentAddr(v);
- }else{
- sqlite3VdbeJumpHere(v, addr);
- if( pMWin->eEnd==TK_PRECEDING ){
- sqlite3VdbeJumpHere(v, addrIfPos1);
+ sqlite3VdbeAddOp2(v, OP_IsNull, reg2, lbl); VdbeCoverage(v);
+ if( op==OP_Gt || op==OP_Ge ){
+ sqlite3VdbeChangeP2(v, -1, sqlite3VdbeCurrentAddr(v)+1);
}
}
- if( pMWin->eEnd==TK_FOLLOWING ){
- addrIfPos1 = sqlite3VdbeAddOp3(v, OP_IfPos, regEnd, 0 , 1);
- VdbeCoverage(v);
- }
- if( pMWin->eStart==TK_FOLLOWING ){
- addrIfPos2 = sqlite3VdbeAddOp3(v, OP_IfPos, regStart, 0 , 1);
- VdbeCoverage(v);
- }
- windowAggFinal(pParse, pMWin, 0);
- windowReturnOneRow(pParse, pMWin, regGosub, addrGosub);
- sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, sqlite3VdbeCurrentAddr(v)+2);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Goto, 0, lblFlushDone);
- if( pMWin->eStart==TK_FOLLOWING ){
- sqlite3VdbeJumpHere(v, addrIfPos2);
- }
+ /* Compare registers reg2 and reg1, taking the jump if required. Note that
+ ** control skips over this test if the BIGNULL flag is set and either
+ ** reg1 or reg2 contain a NULL value. */
+ sqlite3VdbeAddOp3(v, op, reg2, lbl, reg1); VdbeCoverage(v);
+ sqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
- if( pMWin->eStart==TK_CURRENT
- || pMWin->eStart==TK_PRECEDING
- || pMWin->eStart==TK_FOLLOWING
- ){
- int lblSkipInverse = sqlite3VdbeMakeLabel(v);;
- if( pMWin->eStart==TK_PRECEDING ){
- sqlite3VdbeAddOp3(v, OP_IfPos, regStart, lblSkipInverse, 1);
- VdbeCoverage(v);
- }
- if( pMWin->eStart==TK_FOLLOWING ){
- sqlite3VdbeAddOp2(v, OP_Next, csrStart, sqlite3VdbeCurrentAddr(v)+2);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Goto, 0, lblSkipInverse);
- }else{
- sqlite3VdbeAddOp2(v, OP_Next, csrStart, sqlite3VdbeCurrentAddr(v)+1);
- VdbeCoverageAlwaysTaken(v);
- }
- windowAggStep(pParse, pMWin, csrStart, 1, regArg, regSize);
- sqlite3VdbeResolveLabel(v, lblSkipInverse);
- }
- if( pMWin->eEnd==TK_FOLLOWING ){
- sqlite3VdbeJumpHere(v, addrIfPos1);
- }
- sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
+ assert( op==OP_Ge || op==OP_Gt || op==OP_Lt || op==OP_Le );
+ testcase(op==OP_Ge); VdbeCoverageIf(v, op==OP_Ge);
+ testcase(op==OP_Lt); VdbeCoverageIf(v, op==OP_Lt);
+ testcase(op==OP_Le); VdbeCoverageIf(v, op==OP_Le);
+ testcase(op==OP_Gt); VdbeCoverageIf(v, op==OP_Gt);
+ sqlite3ReleaseTempReg(pParse, reg1);
+ sqlite3ReleaseTempReg(pParse, reg2);
- /* flush_partition_done: */
- sqlite3VdbeResolveLabel(v, lblFlushDone);
- sqlite3VdbeAddOp1(v, OP_ResetSorter, pMWin->iEphCsr);
- sqlite3VdbeAddOp1(v, OP_Return, regFlushPart);
- VdbeComment((v, "end flush_partition subroutine"));
-
- /* Jump to here to skip over flush_partition */
- sqlite3VdbeJumpHere(v, addrGoto);
+ VdbeModuleComment((v, "CodeRangeTest: end"));
}
/*
-** This function does the work of sqlite3WindowCodeStep() for cases that
-** would normally be handled by windowCodeDefaultStep() when there are
-** one or more built-in window-functions that require the entire partition
-** to be cached in a temp table before any rows can be returned. Additionally.
-** "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" is always handled by
-** this function.
-**
-** Pseudo-code corresponding to the VM code generated by this function
-** for each type of window follows.
-**
-** RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
-**
-** flush_partition:
-** Once {
-** OpenDup (iEphCsr -> csrLead)
-** }
-** Integer ctr 0
-** foreach row (csrLead){
-** if( new peer ){
-** AggFinal (xValue)
-** for(i=0; i csrLead)
-** }
-** foreach row (csrLead) {
-** AggStep (csrLead)
-** }
-** foreach row (iEphCsr) {
-** Gosub addrGosub
-** }
-**
-** RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
-**
-** flush_partition:
-** Once {
-** OpenDup (iEphCsr -> csrLead)
-** }
-** foreach row (csrLead){
-** AggStep (csrLead)
-** }
-** Rewind (csrLead)
-** Integer ctr 0
-** foreach row (csrLead){
-** if( new peer ){
-** AggFinal (xValue)
-** for(i=0; ipWin;
- Vdbe *v = sqlite3GetVdbe(pParse);
- int k;
- int addr;
- ExprList *pPart = pMWin->pPartition;
- ExprList *pOrderBy = pMWin->pOrderBy;
- int nPeer = pOrderBy ? pOrderBy->nExpr : 0;
- int regNewPeer;
+ int csr, reg;
+ Parse *pParse = p->pParse;
+ Window *pMWin = p->pMWin;
+ int ret = 0;
+ Vdbe *v = p->pVdbe;
+ int addrContinue = 0;
+ int bPeer = (pMWin->eFrmType!=TK_ROWS);
- int addrGoto; /* Address of Goto used to jump flush_par.. */
- int addrNext; /* Jump here for next iteration of loop */
- int regFlushPart;
- int lblFlushPart;
- int csrLead;
- int regCtr;
- int regArg; /* Register array to martial function args */
- int regSize;
- int lblEmpty;
- int bReverse = pMWin->pOrderBy && pMWin->eStart==TK_CURRENT
- && pMWin->eEnd==TK_UNBOUNDED;
+ int lblDone = sqlite3VdbeMakeLabel(pParse);
+ int addrNextRange = 0;
- assert( (pMWin->eStart==TK_UNBOUNDED && pMWin->eEnd==TK_CURRENT)
- || (pMWin->eStart==TK_UNBOUNDED && pMWin->eEnd==TK_UNBOUNDED)
- || (pMWin->eStart==TK_CURRENT && pMWin->eEnd==TK_CURRENT)
- || (pMWin->eStart==TK_CURRENT && pMWin->eEnd==TK_UNBOUNDED)
- );
-
- lblEmpty = sqlite3VdbeMakeLabel(v);
- regNewPeer = pParse->nMem+1;
- pParse->nMem += nPeer;
-
- /* Allocate register and label for the "flush_partition" sub-routine. */
- regFlushPart = ++pParse->nMem;
- lblFlushPart = sqlite3VdbeMakeLabel(v);
-
- csrLead = pParse->nTab++;
- regCtr = ++pParse->nMem;
-
- windowPartitionCache(pParse, p, pWInfo, regFlushPart, lblFlushPart, ®Size);
- addrGoto = sqlite3VdbeAddOp0(v, OP_Goto);
-
- /* Start of "flush_partition" */
- sqlite3VdbeResolveLabel(v, lblFlushPart);
- sqlite3VdbeAddOp2(v, OP_Once, 0, sqlite3VdbeCurrentAddr(v)+2);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_OpenDup, csrLead, pMWin->iEphCsr);
-
- /* Initialize the accumulator register for each window function to NULL */
- regArg = windowInitAccum(pParse, pMWin);
-
- sqlite3VdbeAddOp2(v, OP_Integer, 0, regCtr);
- sqlite3VdbeAddOp2(v, OP_Rewind, csrLead, lblEmpty);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr, lblEmpty);
- VdbeCoverageNeverTaken(v);
-
- if( bReverse ){
- int addr2 = sqlite3VdbeCurrentAddr(v);
- windowAggStep(pParse, pMWin, csrLead, 0, regArg, regSize);
- sqlite3VdbeAddOp2(v, OP_Next, csrLead, addr2);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Rewind, csrLead, lblEmpty);
- VdbeCoverageNeverTaken(v);
- }
- addrNext = sqlite3VdbeCurrentAddr(v);
-
- if( pOrderBy && (pMWin->eEnd==TK_CURRENT || pMWin->eStart==TK_CURRENT) ){
- int bCurrent = (pMWin->eStart==TK_CURRENT);
- int addrJump = 0; /* Address of OP_Jump below */
- if( pMWin->eType==TK_RANGE ){
- int iOff = pMWin->nBufferCol + (pPart ? pPart->nExpr : 0);
- int regPeer = pMWin->regPart + (pPart ? pPart->nExpr : 0);
- KeyInfo *pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pOrderBy, 0, 0);
- for(k=0; keStart==TK_UNBOUNDED ){
+ assert( regCountdown==0 && jumpOnEof==0 );
+ return 0;
}
- if( bReverse==0 ){
- windowAggStep(pParse, pMWin, csrLead, 0, regArg, regSize);
- }
- sqlite3VdbeAddOp2(v, OP_AddImm, regCtr, 1);
- sqlite3VdbeAddOp2(v, OP_Next, csrLead, addrNext);
- VdbeCoverage(v);
-
- windowReturnRows(pParse, pMWin, regCtr, regGosub, addrGosub, 0, 0);
-
- sqlite3VdbeResolveLabel(v, lblEmpty);
- sqlite3VdbeAddOp1(v, OP_ResetSorter, pMWin->iEphCsr);
- sqlite3VdbeAddOp1(v, OP_Return, regFlushPart);
-
- /* Jump to here to skip over flush_partition */
- sqlite3VdbeJumpHere(v, addrGoto);
-}
-
-
-/*
-** RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
-**
-** ...
-** if( new partition ){
-** AggFinal (xFinalize)
-** Gosub addrGosub
-** ResetSorter eph-table
-** }
-** else if( new peer ){
-** AggFinal (xValue)
-** Gosub addrGosub
-** ResetSorter eph-table
-** }
-** AggStep
-** Insert (record into eph-table)
-** sqlite3WhereEnd()
-** AggFinal (xFinalize)
-** Gosub addrGosub
-**
-** RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
-**
-** As above, except take no action for a "new peer". Invoke
-** the sub-routine once only for each partition.
-**
-** RANGE BETWEEN CURRENT ROW AND CURRENT ROW
-**
-** As above, except that the "new peer" condition is handled in the
-** same way as "new partition" (so there is no "else if" block).
-**
-** ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
-**
-** As above, except assume every row is a "new peer".
-*/
-static void windowCodeDefaultStep(
- Parse *pParse,
- Select *p,
- WhereInfo *pWInfo,
- int regGosub,
- int addrGosub
-){
- Window *pMWin = p->pWin;
- Vdbe *v = sqlite3GetVdbe(pParse);
- int k;
- int iSubCsr = p->pSrc->a[0].iCursor;
- int nSub = p->pSrc->a[0].pTab->nCol;
- int reg = pParse->nMem+1;
- int regRecord = reg+nSub;
- int regRowid = regRecord+1;
- int addr;
- ExprList *pPart = pMWin->pPartition;
- ExprList *pOrderBy = pMWin->pOrderBy;
-
- assert( pMWin->eType==TK_RANGE
- || (pMWin->eStart==TK_UNBOUNDED && pMWin->eEnd==TK_CURRENT)
- );
-
- assert( (pMWin->eStart==TK_UNBOUNDED && pMWin->eEnd==TK_CURRENT)
- || (pMWin->eStart==TK_UNBOUNDED && pMWin->eEnd==TK_UNBOUNDED)
- || (pMWin->eStart==TK_CURRENT && pMWin->eEnd==TK_CURRENT)
- || (pMWin->eStart==TK_CURRENT && pMWin->eEnd==TK_UNBOUNDED && !pOrderBy)
- );
-
- if( pMWin->eEnd==TK_UNBOUNDED ){
- pOrderBy = 0;
- }
-
- pParse->nMem += nSub + 2;
-
- /* Load the individual column values of the row returned by
- ** the sub-select into an array of registers. */
- for(k=0; knExpr : 0);
- int addrGoto = 0;
- int addrJump = 0;
- int nPeer = (pOrderBy ? pOrderBy->nExpr : 0);
-
- if( pPart ){
- int regNewPart = reg + pMWin->nBufferCol;
- KeyInfo *pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pPart, 0, 0);
- addr = sqlite3VdbeAddOp3(v, OP_Compare, regNewPart, pMWin->regPart,nPart);
- sqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
- addrJump = sqlite3VdbeAddOp3(v, OP_Jump, addr+2, 0, addr+2);
- VdbeCoverageEqNe(v);
- windowAggFinal(pParse, pMWin, 1);
- if( pOrderBy ){
- addrGoto = sqlite3VdbeAddOp0(v, OP_Goto);
- }
- }
-
- if( pOrderBy ){
- int regNewPeer = reg + pMWin->nBufferCol + nPart;
- int regPeer = pMWin->regPart + nPart;
-
- if( addrJump ) sqlite3VdbeJumpHere(v, addrJump);
- if( pMWin->eType==TK_RANGE ){
- KeyInfo *pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pOrderBy, 0, 0);
- addr = sqlite3VdbeAddOp3(v, OP_Compare, regNewPeer, regPeer, nPeer);
- sqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
- addrJump = sqlite3VdbeAddOp3(v, OP_Jump, addr+2, 0, addr+2);
- VdbeCoverage(v);
+ if( regCountdown>0 ){
+ if( pMWin->eFrmType==TK_RANGE ){
+ addrNextRange = sqlite3VdbeCurrentAddr(v);
+ assert( op==WINDOW_AGGINVERSE || op==WINDOW_AGGSTEP );
+ if( op==WINDOW_AGGINVERSE ){
+ if( pMWin->eStart==TK_FOLLOWING ){
+ windowCodeRangeTest(
+ p, OP_Le, p->current.csr, regCountdown, p->start.csr, lblDone
+ );
+ }else{
+ windowCodeRangeTest(
+ p, OP_Ge, p->start.csr, regCountdown, p->current.csr, lblDone
+ );
+ }
}else{
- addrJump = 0;
+ windowCodeRangeTest(
+ p, OP_Gt, p->end.csr, regCountdown, p->current.csr, lblDone
+ );
}
- windowAggFinal(pParse, pMWin, pMWin->eStart==TK_CURRENT);
- if( addrGoto ) sqlite3VdbeJumpHere(v, addrGoto);
+ }else{
+ sqlite3VdbeAddOp3(v, OP_IfPos, regCountdown, lblDone, 1);
+ VdbeCoverage(v);
}
-
- sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr,sqlite3VdbeCurrentAddr(v)+3);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Gosub, regGosub, addrGosub);
- sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, sqlite3VdbeCurrentAddr(v)-1);
- VdbeCoverage(v);
-
- sqlite3VdbeAddOp1(v, OP_ResetSorter, pMWin->iEphCsr);
- sqlite3VdbeAddOp3(
- v, OP_Copy, reg+pMWin->nBufferCol, pMWin->regPart, nPart+nPeer-1
- );
-
- if( addrJump ) sqlite3VdbeJumpHere(v, addrJump);
}
- /* Invoke step function for window functions */
- windowAggStep(pParse, pMWin, -1, 0, reg, 0);
+ if( op==WINDOW_RETURN_ROW && pMWin->regStartRowid==0 ){
+ windowAggFinal(p, 0);
+ }
+ addrContinue = sqlite3VdbeCurrentAddr(v);
- /* Buffer the current row in the ephemeral table. */
- if( pMWin->nBufferCol>0 ){
- sqlite3VdbeAddOp3(v, OP_MakeRecord, reg, pMWin->nBufferCol, regRecord);
+ /* If this is a (RANGE BETWEEN a FOLLOWING AND b FOLLOWING) or
+ ** (RANGE BETWEEN b PRECEDING AND a PRECEDING) frame, ensure the
+ ** start cursor does not advance past the end cursor within the
+ ** temporary table. It otherwise might, if (a>b). */
+ if( pMWin->eStart==pMWin->eEnd && regCountdown
+ && pMWin->eFrmType==TK_RANGE && op==WINDOW_AGGINVERSE
+ ){
+ int regRowid1 = sqlite3GetTempReg(pParse);
+ int regRowid2 = sqlite3GetTempReg(pParse);
+ sqlite3VdbeAddOp2(v, OP_Rowid, p->start.csr, regRowid1);
+ sqlite3VdbeAddOp2(v, OP_Rowid, p->end.csr, regRowid2);
+ sqlite3VdbeAddOp3(v, OP_Ge, regRowid2, lblDone, regRowid1);
+ VdbeCoverage(v);
+ sqlite3ReleaseTempReg(pParse, regRowid1);
+ sqlite3ReleaseTempReg(pParse, regRowid2);
+ assert( pMWin->eStart==TK_PRECEDING || pMWin->eStart==TK_FOLLOWING );
+ }
+
+ switch( op ){
+ case WINDOW_RETURN_ROW:
+ csr = p->current.csr;
+ reg = p->current.reg;
+ windowReturnOneRow(p);
+ break;
+
+ case WINDOW_AGGINVERSE:
+ csr = p->start.csr;
+ reg = p->start.reg;
+ if( pMWin->regStartRowid ){
+ assert( pMWin->regEndRowid );
+ sqlite3VdbeAddOp2(v, OP_AddImm, pMWin->regStartRowid, 1);
+ }else{
+ windowAggStep(p, pMWin, csr, 1, p->regArg);
+ }
+ break;
+
+ default:
+ assert( op==WINDOW_AGGSTEP );
+ csr = p->end.csr;
+ reg = p->end.reg;
+ if( pMWin->regStartRowid ){
+ assert( pMWin->regEndRowid );
+ sqlite3VdbeAddOp2(v, OP_AddImm, pMWin->regEndRowid, 1);
+ }else{
+ windowAggStep(p, pMWin, csr, 0, p->regArg);
+ }
+ break;
+ }
+
+ if( op==p->eDelete ){
+ sqlite3VdbeAddOp1(v, OP_Delete, csr);
+ sqlite3VdbeChangeP5(v, OPFLAG_SAVEPOSITION);
+ }
+
+ if( jumpOnEof ){
+ sqlite3VdbeAddOp2(v, OP_Next, csr, sqlite3VdbeCurrentAddr(v)+2);
+ VdbeCoverage(v);
+ ret = sqlite3VdbeAddOp0(v, OP_Goto);
}else{
- sqlite3VdbeAddOp2(v, OP_Blob, 0, regRecord);
- sqlite3VdbeAppendP4(v, (void*)"", 0);
+ sqlite3VdbeAddOp2(v, OP_Next, csr, sqlite3VdbeCurrentAddr(v)+1+bPeer);
+ VdbeCoverage(v);
+ if( bPeer ){
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, lblDone);
+ }
}
- sqlite3VdbeAddOp2(v, OP_NewRowid, pMWin->iEphCsr, regRowid);
- sqlite3VdbeAddOp3(v, OP_Insert, pMWin->iEphCsr, regRecord, regRowid);
- /* End the database scan loop. */
- sqlite3WhereEnd(pWInfo);
+ if( bPeer ){
+ int nReg = (pMWin->pOrderBy ? pMWin->pOrderBy->nExpr : 0);
+ int regTmp = (nReg ? sqlite3GetTempRange(pParse, nReg) : 0);
+ windowReadPeerValues(p, csr, regTmp);
+ windowIfNewPeer(pParse, pMWin->pOrderBy, regTmp, reg, addrContinue);
+ sqlite3ReleaseTempRange(pParse, regTmp, nReg);
+ }
- windowAggFinal(pParse, pMWin, 1);
- sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr,sqlite3VdbeCurrentAddr(v)+3);
- VdbeCoverage(v);
- sqlite3VdbeAddOp2(v, OP_Gosub, regGosub, addrGosub);
- sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, sqlite3VdbeCurrentAddr(v)-1);
- VdbeCoverage(v);
+ if( addrNextRange ){
+ sqlite3VdbeAddOp2(v, OP_Goto, 0, addrNextRange);
+ }
+ sqlite3VdbeResolveLabel(v, lblDone);
+ return ret;
}
+
/*
** Allocate and return a duplicate of the Window object indicated by the
** third argument. Set the Window.pOwner field of the new object to
@@ -145779,19 +148936,24 @@ static void windowCodeDefaultStep(
*/
SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p){
Window *pNew = 0;
- if( p ){
+ if( ALWAYS(p) ){
pNew = sqlite3DbMallocZero(db, sizeof(Window));
if( pNew ){
pNew->zName = sqlite3DbStrDup(db, p->zName);
+ pNew->zBase = sqlite3DbStrDup(db, p->zBase);
pNew->pFilter = sqlite3ExprDup(db, p->pFilter, 0);
+ pNew->pFunc = p->pFunc;
pNew->pPartition = sqlite3ExprListDup(db, p->pPartition, 0);
pNew->pOrderBy = sqlite3ExprListDup(db, p->pOrderBy, 0);
- pNew->eType = p->eType;
+ pNew->eFrmType = p->eFrmType;
pNew->eEnd = p->eEnd;
pNew->eStart = p->eStart;
+ pNew->eExclude = p->eExclude;
+ pNew->regResult = p->regResult;
pNew->pStart = sqlite3ExprDup(db, p->pStart, 0);
pNew->pEnd = sqlite3ExprDup(db, p->pEnd, 0);
pNew->pOwner = pOwner;
+ pNew->bImplicitFrame = p->bImplicitFrame;
}
}
return pNew;
@@ -145815,12 +148977,360 @@ SQLITE_PRIVATE Window *sqlite3WindowListDup(sqlite3 *db, Window *p){
return pRet;
}
+/*
+** Return true if it can be determined at compile time that expression
+** pExpr evaluates to a value that, when cast to an integer, is greater
+** than zero. False otherwise.
+**
+** If an OOM error occurs, this function sets the Parse.db.mallocFailed
+** flag and returns zero.
+*/
+static int windowExprGtZero(Parse *pParse, Expr *pExpr){
+ int ret = 0;
+ sqlite3 *db = pParse->db;
+ sqlite3_value *pVal = 0;
+ sqlite3ValueFromExpr(db, pExpr, db->enc, SQLITE_AFF_NUMERIC, &pVal);
+ if( pVal && sqlite3_value_int(pVal)>0 ){
+ ret = 1;
+ }
+ sqlite3ValueFree(pVal);
+ return ret;
+}
+
/*
** sqlite3WhereBegin() has already been called for the SELECT statement
** passed as the second argument when this function is invoked. It generates
-** code to populate the Window.regResult register for each window function and
-** invoke the sub-routine at instruction addrGosub once for each row.
-** This function calls sqlite3WhereEnd() before returning.
+** code to populate the Window.regResult register for each window function
+** and invoke the sub-routine at instruction addrGosub once for each row.
+** sqlite3WhereEnd() is always called before returning.
+**
+** This function handles several different types of window frames, which
+** require slightly different processing. The following pseudo code is
+** used to implement window frames of the form:
+**
+** ROWS BETWEEN PRECEDING AND FOLLOWING
+**
+** Other window frame types use variants of the following:
+**
+** ... loop started by sqlite3WhereBegin() ...
+** if( new partition ){
+** Gosub flush
+** }
+** Insert new row into eph table.
+**
+** if( first row of partition ){
+** // Rewind three cursors, all open on the eph table.
+** Rewind(csrEnd);
+** Rewind(csrStart);
+** Rewind(csrCurrent);
+**
+** regEnd = // FOLLOWING expression
+** regStart = // PRECEDING expression
+** }else{
+** // First time this branch is taken, the eph table contains two
+** // rows. The first row in the partition, which all three cursors
+** // currently point to, and the following row.
+** AGGSTEP
+** if( (regEnd--)<=0 ){
+** RETURN_ROW
+** if( (regStart--)<=0 ){
+** AGGINVERSE
+** }
+** }
+** }
+** }
+** flush:
+** AGGSTEP
+** while( 1 ){
+** RETURN ROW
+** if( csrCurrent is EOF ) break;
+** if( (regStart--)<=0 ){
+** AggInverse(csrStart)
+** Next(csrStart)
+** }
+** }
+**
+** The pseudo-code above uses the following shorthand:
+**
+** AGGSTEP: invoke the aggregate xStep() function for each window function
+** with arguments read from the current row of cursor csrEnd, then
+** step cursor csrEnd forward one row (i.e. sqlite3BtreeNext()).
+**
+** RETURN_ROW: return a row to the caller based on the contents of the
+** current row of csrCurrent and the current state of all
+** aggregates. Then step cursor csrCurrent forward one row.
+**
+** AGGINVERSE: invoke the aggregate xInverse() function for each window
+** functions with arguments read from the current row of cursor
+** csrStart. Then step csrStart forward one row.
+**
+** There are two other ROWS window frames that are handled significantly
+** differently from the above - "BETWEEN PRECEDING AND PRECEDING"
+** and "BETWEEN FOLLOWING AND FOLLOWING". These are special
+** cases because they change the order in which the three cursors (csrStart,
+** csrCurrent and csrEnd) iterate through the ephemeral table. Cases that
+** use UNBOUNDED or CURRENT ROW are much simpler variations on one of these
+** three.
+**
+** ROWS BETWEEN PRECEDING AND PRECEDING
+**
+** ... loop started by sqlite3WhereBegin() ...
+** if( new partition ){
+** Gosub flush
+** }
+** Insert new row into eph table.
+** if( first row of partition ){
+** Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
+** regEnd =
+** regStart =
+** }else{
+** if( (regEnd--)<=0 ){
+** AGGSTEP
+** }
+** RETURN_ROW
+** if( (regStart--)<=0 ){
+** AGGINVERSE
+** }
+** }
+** }
+** flush:
+** if( (regEnd--)<=0 ){
+** AGGSTEP
+** }
+** RETURN_ROW
+**
+**
+** ROWS BETWEEN FOLLOWING AND FOLLOWING
+**
+** ... loop started by sqlite3WhereBegin() ...
+** if( new partition ){
+** Gosub flush
+** }
+** Insert new row into eph table.
+** if( first row of partition ){
+** Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
+** regEnd =
+** regStart = regEnd -
+** }else{
+** AGGSTEP
+** if( (regEnd--)<=0 ){
+** RETURN_ROW
+** }
+** if( (regStart--)<=0 ){
+** AGGINVERSE
+** }
+** }
+** }
+** flush:
+** AGGSTEP
+** while( 1 ){
+** if( (regEnd--)<=0 ){
+** RETURN_ROW
+** if( eof ) break;
+** }
+** if( (regStart--)<=0 ){
+** AGGINVERSE
+** if( eof ) break
+** }
+** }
+** while( !eof csrCurrent ){
+** RETURN_ROW
+** }
+**
+** For the most part, the patterns above are adapted to support UNBOUNDED by
+** assuming that it is equivalent to "infinity PRECEDING/FOLLOWING" and
+** CURRENT ROW by assuming that it is equivilent to "0 PRECEDING/FOLLOWING".
+** This is optimized of course - branches that will never be taken and
+** conditions that are always true are omitted from the VM code. The only
+** exceptional case is:
+**
+** ROWS BETWEEN FOLLOWING AND UNBOUNDED FOLLOWING
+**
+** ... loop started by sqlite3WhereBegin() ...
+** if( new partition ){
+** Gosub flush
+** }
+** Insert new row into eph table.
+** if( first row of partition ){
+** Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
+** regStart =
+** }else{
+** AGGSTEP
+** }
+** }
+** flush:
+** AGGSTEP
+** while( 1 ){
+** if( (regStart--)<=0 ){
+** AGGINVERSE
+** if( eof ) break
+** }
+** RETURN_ROW
+** }
+** while( !eof csrCurrent ){
+** RETURN_ROW
+** }
+**
+** Also requiring special handling are the cases:
+**
+** ROWS BETWEEN PRECEDING AND PRECEDING
+** ROWS BETWEEN FOLLOWING AND FOLLOWING
+**
+** when (expr1 < expr2). This is detected at runtime, not by this function.
+** To handle this case, the pseudo-code programs depicted above are modified
+** slightly to be:
+**
+** ... loop started by sqlite3WhereBegin() ...
+** if( new partition ){
+** Gosub flush
+** }
+** Insert new row into eph table.
+** if( first row of partition ){
+** Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
+** regEnd =
|
+
+#### Organizations
+
+Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/mattn-go-sqlite3/contribute)]
+
+
+
+
+
+
+
+
+
+
+
+
# License
MIT: http://mattn.mit-license.org/2018
diff --git a/vendor/github.com/mattn/go-sqlite3/backup.go b/vendor/github.com/mattn/go-sqlite3/backup.go
index 5ab3a54de..e222cc888 100644
--- a/vendor/github.com/mattn/go-sqlite3/backup.go
+++ b/vendor/github.com/mattn/go-sqlite3/backup.go
@@ -1,4 +1,4 @@
-// Copyright (C) 2014 Yasuhiro Matsumoto