Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Import the latest 3.7.16 beta from upstream. |
---|---|
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
a026475c38e768197025a77400173dd0 |
User & Date: | drh 2013-03-12 16:31:16.932 |
Context
2013-03-13
| ||
01:51 | Update the built-in SQLite to include the fixes to ORDER BY and IN that where discovered by the previous import. check-in: 9d717e74e7 user: drh tags: trunk | |
2013-03-12
| ||
16:31 | Import the latest 3.7.16 beta from upstream. check-in: a026475c38 user: drh tags: trunk | |
2012-12-11
| ||
00:58 | Update the SQLite core from upstream. This update includes the COLLATE expression refactor and other minor fixes. check-in: 99340f5906 user: drh tags: trunk | |
Changes
Changes to src/sqlite3.c.
1 2 | /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite | | | 1 2 3 4 5 6 7 8 9 10 | /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite ** version 3.7.16. By combining all the individual C code files into this ** single large file, the entire code can be compiled as a single translation ** unit. This allows many compilers to do optimizations that would not be ** possible if the files were compiled separately. Performance improvements ** of 5% or more are commonly seen when SQLite is compiled as a single ** translation unit. ** ** This file is all you need to compile SQLite. To use SQLite in other |
︙ | ︙ | |||
302 303 304 305 306 307 308 309 310 311 312 313 314 315 | #endif /* Needed for various definitions... */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif /* ** Include standard header files as necessary */ #ifdef HAVE_STDINT_H #include <stdint.h> #endif #ifdef HAVE_INTTYPES_H | > > > > | 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 | #endif /* Needed for various definitions... */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #if defined(__OpenBSD__) && !defined(_BSD_SOURCE) # define _BSD_SOURCE #endif /* ** Include standard header files as necessary */ #ifdef HAVE_STDINT_H #include <stdint.h> #endif #ifdef HAVE_INTTYPES_H |
︙ | ︙ | |||
436 437 438 439 440 441 442 | ** Later we learn that _XOPEN_SOURCE is poorly or incorrectly ** implemented on some systems. So we avoid defining it at all ** if it is already defined or if it is unneeded because we are ** not doing a threadsafe build. Ticket #2681. ** ** See also ticket #2741. */ | | > | 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 | ** Later we learn that _XOPEN_SOURCE is poorly or incorrectly ** implemented on some systems. So we avoid defining it at all ** if it is already defined or if it is unneeded because we are ** not doing a threadsafe build. Ticket #2681. ** ** See also ticket #2741. */ #if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) \ && !defined(__APPLE__) && SQLITE_THREADSAFE # define _XOPEN_SOURCE 500 /* Needed to enable pthread recursive mutexes */ #endif /* ** The TCL headers are only needed when compiling the TCL bindings. */ #if defined(SQLITE_TCL) || defined(TCLSH) |
︙ | ︙ | |||
669 670 671 672 673 674 675 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ | | | | | 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ #define SQLITE_VERSION "3.7.16" #define SQLITE_VERSION_NUMBER 3007016 #define SQLITE_SOURCE_ID "2013-03-11 13:37:52 f9027cb47bdec8dcebf1f038921b28d9e9928c18" /* ** CAPI3REF: Run-Time Library Version Numbers ** KEYWORDS: sqlite3_version, sqlite3_sourceid ** ** These interfaces provide the same information as the [SQLITE_VERSION], ** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros |
︙ | ︙ | |||
1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 | #define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8)) #define SQLITE_CANTOPEN_NOTEMPDIR (SQLITE_CANTOPEN | (1<<8)) #define SQLITE_CANTOPEN_ISDIR (SQLITE_CANTOPEN | (2<<8)) #define SQLITE_CANTOPEN_FULLPATH (SQLITE_CANTOPEN | (3<<8)) #define SQLITE_CORRUPT_VTAB (SQLITE_CORRUPT | (1<<8)) #define SQLITE_READONLY_RECOVERY (SQLITE_READONLY | (1<<8)) #define SQLITE_READONLY_CANTLOCK (SQLITE_READONLY | (2<<8)) #define SQLITE_ABORT_ROLLBACK (SQLITE_ABORT | (2<<8)) /* ** CAPI3REF: Flags For File Open Operations ** ** These bit values are intended for use in the ** 3rd parameter to the [sqlite3_open_v2()] interface and ** in the 4th parameter to the [sqlite3_vfs.xOpen] method. | > > > > > > > > > > | 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 | #define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8)) #define SQLITE_CANTOPEN_NOTEMPDIR (SQLITE_CANTOPEN | (1<<8)) #define SQLITE_CANTOPEN_ISDIR (SQLITE_CANTOPEN | (2<<8)) #define SQLITE_CANTOPEN_FULLPATH (SQLITE_CANTOPEN | (3<<8)) #define SQLITE_CORRUPT_VTAB (SQLITE_CORRUPT | (1<<8)) #define SQLITE_READONLY_RECOVERY (SQLITE_READONLY | (1<<8)) #define SQLITE_READONLY_CANTLOCK (SQLITE_READONLY | (2<<8)) #define SQLITE_READONLY_ROLLBACK (SQLITE_READONLY | (3<<8)) #define SQLITE_ABORT_ROLLBACK (SQLITE_ABORT | (2<<8)) #define SQLITE_CONSTRAINT_CHECK (SQLITE_CONSTRAINT | (1<<8)) #define SQLITE_CONSTRAINT_COMMITHOOK (SQLITE_CONSTRAINT | (2<<8)) #define SQLITE_CONSTRAINT_FOREIGNKEY (SQLITE_CONSTRAINT | (3<<8)) #define SQLITE_CONSTRAINT_FUNCTION (SQLITE_CONSTRAINT | (4<<8)) #define SQLITE_CONSTRAINT_NOTNULL (SQLITE_CONSTRAINT | (5<<8)) #define SQLITE_CONSTRAINT_PRIMARYKEY (SQLITE_CONSTRAINT | (6<<8)) #define SQLITE_CONSTRAINT_TRIGGER (SQLITE_CONSTRAINT | (7<<8)) #define SQLITE_CONSTRAINT_UNIQUE (SQLITE_CONSTRAINT | (8<<8)) #define SQLITE_CONSTRAINT_VTAB (SQLITE_CONSTRAINT | (9<<8)) /* ** CAPI3REF: Flags For File Open Operations ** ** These bit values are intended for use in the ** 3rd parameter to the [sqlite3_open_v2()] interface and ** in the 4th parameter to the [sqlite3_vfs.xOpen] method. |
︙ | ︙ | |||
2154 2155 2156 2157 2158 2159 2160 | ** connection is opened. If it is globally disabled, filenames are ** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the ** database connection is opened. By default, URI handling is globally ** disabled. The default value may be changed by compiling with the ** [SQLITE_USE_URI] symbol defined. ** ** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN | | | 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 | ** connection is opened. If it is globally disabled, filenames are ** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the ** database connection is opened. By default, URI handling is globally ** disabled. The default value may be changed by compiling with the ** [SQLITE_USE_URI] symbol defined. ** ** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN ** <dd> This option takes a single integer argument which is interpreted as ** a boolean in order to enable or disable the use of covering indices for ** full table scans in the query optimizer. The default setting is determined ** by the [SQLITE_ALLOW_COVERING_INDEX_SCAN] compile-time option, or is "on" ** if that compile-time option is omitted. ** The ability to disable the use of covering indices for full table scans ** is because some incorrectly coded legacy applications might malfunction ** malfunction when the optimization is enabled. Providing the ability to |
︙ | ︙ | |||
8236 8237 8238 8239 8240 8241 8242 8243 8244 8245 8246 8247 8248 8249 | /* ** A convenience macro that returns the number of elements in ** an array. */ #define ArraySize(X) ((int)(sizeof(X)/sizeof(X[0]))) /* ** The following value as a destructor means to use sqlite3DbFree(). ** The sqlite3DbFree() routine requires two parameters instead of the ** one parameter that destructors normally want. So we have to introduce ** this magic value that the code knows to handle differently. Any ** pointer will work here as long as it is distinct from SQLITE_STATIC ** and SQLITE_TRANSIENT. | > > > > > | 8251 8252 8253 8254 8255 8256 8257 8258 8259 8260 8261 8262 8263 8264 8265 8266 8267 8268 8269 | /* ** A convenience macro that returns the number of elements in ** an array. */ #define ArraySize(X) ((int)(sizeof(X)/sizeof(X[0]))) /* ** Determine if the argument is a power of two */ #define IsPowerOfTwo(X) (((X)&((X)-1))==0) /* ** The following value as a destructor means to use sqlite3DbFree(). ** The sqlite3DbFree() routine requires two parameters instead of the ** one parameter that destructors normally want. So we have to introduce ** this magic value that the code knows to handle differently. Any ** pointer will work here as long as it is distinct from SQLITE_STATIC ** and SQLITE_TRANSIENT. |
︙ | ︙ | |||
10011 10012 10013 10014 10015 10016 10017 | /* DELETE, or UPDATE and return */ /* the count using a callback. */ #define SQLITE_NullCallback 0x00000020 /* Invoke the callback once if the */ /* result set is empty */ #define SQLITE_SqlTrace 0x00000040 /* Debug print SQL as it executes */ #define SQLITE_VdbeListing 0x00000080 /* Debug listings of VDBE programs */ #define SQLITE_WriteSchema 0x00000100 /* OK to update SQLITE_MASTER */ | | | 10031 10032 10033 10034 10035 10036 10037 10038 10039 10040 10041 10042 10043 10044 10045 | /* DELETE, or UPDATE and return */ /* the count using a callback. */ #define SQLITE_NullCallback 0x00000020 /* Invoke the callback once if the */ /* result set is empty */ #define SQLITE_SqlTrace 0x00000040 /* Debug print SQL as it executes */ #define SQLITE_VdbeListing 0x00000080 /* Debug listings of VDBE programs */ #define SQLITE_WriteSchema 0x00000100 /* OK to update SQLITE_MASTER */ #define SQLITE_VdbeAddopTrace 0x00000200 /* Trace sqlite3VdbeAddOp() calls */ #define SQLITE_IgnoreChecks 0x00000400 /* Do not enforce check constraints */ #define SQLITE_ReadUncommitted 0x0000800 /* For shared-cache mode */ #define SQLITE_LegacyFileFmt 0x00001000 /* Create new databases in format 1 */ #define SQLITE_FullFSync 0x00002000 /* Use full fsync on the backend */ #define SQLITE_CkptFullFSync 0x00004000 /* Use full fsync for checkpoint */ #define SQLITE_RecoveryMode 0x00008000 /* Ignore schema errors */ #define SQLITE_ReverseOrder 0x00010000 /* Reverse unordered SELECTs */ |
︙ | ︙ | |||
10040 10041 10042 10043 10044 10045 10046 10047 10048 10049 10050 10051 10052 10053 | #define SQLITE_GroupByOrder 0x0004 /* GROUPBY cover of ORDERBY */ #define SQLITE_FactorOutConst 0x0008 /* Constant factoring */ #define SQLITE_IdxRealAsInt 0x0010 /* Store REAL as INT in indices */ #define SQLITE_DistinctOpt 0x0020 /* DISTINCT using indexes */ #define SQLITE_CoverIdxScan 0x0040 /* Covering index scans */ #define SQLITE_OrderByIdxJoin 0x0080 /* ORDER BY of joins via index */ #define SQLITE_SubqCoroutine 0x0100 /* Evaluate subqueries as coroutines */ #define SQLITE_AllOpts 0xffff /* All optimizations */ /* ** Macros for testing whether or not optimizations are enabled or disabled. */ #ifndef SQLITE_OMIT_BUILTIN_TEST #define OptimizationDisabled(db, mask) (((db)->dbOptFlags&(mask))!=0) | > | 10060 10061 10062 10063 10064 10065 10066 10067 10068 10069 10070 10071 10072 10073 10074 | #define SQLITE_GroupByOrder 0x0004 /* GROUPBY cover of ORDERBY */ #define SQLITE_FactorOutConst 0x0008 /* Constant factoring */ #define SQLITE_IdxRealAsInt 0x0010 /* Store REAL as INT in indices */ #define SQLITE_DistinctOpt 0x0020 /* DISTINCT using indexes */ #define SQLITE_CoverIdxScan 0x0040 /* Covering index scans */ #define SQLITE_OrderByIdxJoin 0x0080 /* ORDER BY of joins via index */ #define SQLITE_SubqCoroutine 0x0100 /* Evaluate subqueries as coroutines */ #define SQLITE_Transitive 0x0200 /* Transitive constraints */ #define SQLITE_AllOpts 0xffff /* All optimizations */ /* ** Macros for testing whether or not optimizations are enabled or disabled. */ #ifndef SQLITE_OMIT_BUILTIN_TEST #define OptimizationDisabled(db, mask) (((db)->dbOptFlags&(mask))!=0) |
︙ | ︙ | |||
10551 10552 10553 10554 10555 10556 10557 | ** must be unique and what to do if they are not. When Index.onError=OE_None, ** it means this is not a unique index. Otherwise it is a unique index ** and the value of Index.onError indicate the which conflict resolution ** algorithm to employ whenever an attempt is made to insert a non-unique ** element. */ struct Index { | | | | | | | | | | < | > | | | | 10572 10573 10574 10575 10576 10577 10578 10579 10580 10581 10582 10583 10584 10585 10586 10587 10588 10589 10590 10591 10592 10593 10594 10595 10596 10597 10598 10599 | ** must be unique and what to do if they are not. When Index.onError=OE_None, ** it means this is not a unique index. Otherwise it is a unique index ** and the value of Index.onError indicate the which conflict resolution ** algorithm to employ whenever an attempt is made to insert a non-unique ** element. */ struct Index { char *zName; /* Name of this index */ int *aiColumn; /* Which columns are used by this index. 1st is 0 */ tRowcnt *aiRowEst; /* From ANALYZE: Est. rows selected by each column */ Table *pTable; /* The SQL table being indexed */ char *zColAff; /* String defining the affinity of each column */ Index *pNext; /* The next index associated with the same table */ Schema *pSchema; /* Schema containing this index */ u8 *aSortOrder; /* for each column: True==DESC, False==ASC */ char **azColl; /* Array of collation sequence names for index */ int tnum; /* DB Page containing root of this index */ u16 nColumn; /* Number of columns in table used by this index */ u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */ unsigned autoIndex:2; /* 1==UNIQUE, 2==PRIMARY KEY, 0==CREATE INDEX */ unsigned bUnordered:1; /* Use this index for == or IN queries only */ #ifdef SQLITE_ENABLE_STAT3 int nSample; /* Number of elements in aSample[] */ tRowcnt avgEq; /* Average nEq value for key values not in aSample */ IndexSample *aSample; /* Samples of the left-most key */ #endif }; |
︙ | ︙ | |||
10838 10839 10840 10841 10842 10843 10844 10845 10846 10847 10848 10849 | /* ** A list of expressions. Each expression may optionally have a ** name. An expr/name combination can be used in several ways, such ** as the list of "expr AS ID" fields following a "SELECT" or in the ** list of "ID = expr" items in an UPDATE. A list of expressions can ** also be used as the argument to a function, in which case the a.zName ** field is not used. */ struct ExprList { int nExpr; /* Number of expressions on the list */ int iECursor; /* VDBE Cursor associated with this ExprList */ struct ExprList_item { /* For each expression in the list */ | > > > > > > > > | | | | | > | | | 10859 10860 10861 10862 10863 10864 10865 10866 10867 10868 10869 10870 10871 10872 10873 10874 10875 10876 10877 10878 10879 10880 10881 10882 10883 10884 10885 10886 10887 10888 10889 10890 10891 10892 10893 | /* ** A list of expressions. Each expression may optionally have a ** name. An expr/name combination can be used in several ways, such ** as the list of "expr AS ID" fields following a "SELECT" or in the ** list of "ID = expr" items in an UPDATE. A list of expressions can ** also be used as the argument to a function, in which case the a.zName ** field is not used. ** ** By default the Expr.zSpan field holds a human-readable description of ** the expression that is used in the generation of error messages and ** column labels. In this case, Expr.zSpan is typically the text of a ** column expression as it exists in a SELECT statement. However, if ** the bSpanIsTab flag is set, then zSpan is overloaded to mean the name ** of the result column in the form: DATABASE.TABLE.COLUMN. This later ** form is used for name resolution with nested FROM clauses. */ struct ExprList { int nExpr; /* Number of expressions on the list */ int iECursor; /* VDBE Cursor associated with this ExprList */ struct ExprList_item { /* For each expression in the list */ Expr *pExpr; /* The list of expressions */ char *zName; /* Token associated with this expression */ char *zSpan; /* Original text of the expression */ u8 sortOrder; /* 1 for DESC or 0 for ASC */ unsigned done :1; /* A flag to indicate when processing is finished */ unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */ u16 iOrderByCol; /* For ORDER BY, column number in result set */ u16 iAlias; /* Index into Parse.aAlias[] for zName */ } *a; /* Alloc a power of two greater or equal to nExpr */ }; /* ** An instance of this structure is used by the parser to record both ** the parse tree for an expression and the span of input text for an ** expression. |
︙ | ︙ | |||
11017 11018 11019 11020 11021 11022 11023 11024 11025 11026 11027 11028 11029 11030 | int p1, p2; /* Operands of the opcode used to ends the loop */ union { /* Information that depends on plan.wsFlags */ struct { int nIn; /* Number of entries in aInLoop[] */ struct InLoop { int iCur; /* The VDBE cursor used by this IN operator */ int addrInTop; /* Top of the IN loop */ } *aInLoop; /* Information about each nested IN operator */ } in; /* Used when plan.wsFlags&WHERE_IN_ABLE */ Index *pCovidx; /* Possible covering index for WHERE_MULTI_OR */ } u; double rOptCost; /* "Optimal" cost for this level */ /* The following field is really not part of the current level. But | > | 11047 11048 11049 11050 11051 11052 11053 11054 11055 11056 11057 11058 11059 11060 11061 | int p1, p2; /* Operands of the opcode used to ends the loop */ union { /* Information that depends on plan.wsFlags */ struct { int nIn; /* Number of entries in aInLoop[] */ struct InLoop { int iCur; /* The VDBE cursor used by this IN operator */ int addrInTop; /* Top of the IN loop */ u8 eEndLoopOp; /* IN Loop terminator. OP_Next or OP_Prev */ } *aInLoop; /* Information about each nested IN operator */ } in; /* Used when plan.wsFlags&WHERE_IN_ABLE */ Index *pCovidx; /* Possible covering index for WHERE_MULTI_OR */ } u; double rOptCost; /* "Optimal" cost for this level */ /* The following field is really not part of the current level. But |
︙ | ︙ | |||
11169 11170 11171 11172 11173 11174 11175 11176 11177 11178 11179 11180 11181 11182 | #define SF_Aggregate 0x0004 /* Contains aggregate functions */ #define SF_UsesEphemeral 0x0008 /* Uses the OpenEphemeral opcode */ #define SF_Expanded 0x0010 /* sqlite3SelectExpand() called on this */ #define SF_HasTypeInfo 0x0020 /* FROM subqueries have Table metadata */ #define SF_UseSorter 0x0040 /* Sort using a sorter */ #define SF_Values 0x0080 /* Synthesized from VALUES clause */ #define SF_Materialize 0x0100 /* Force materialization of views */ /* ** The results of a select can be distributed in several ways. The ** "SRT" prefix means "SELECT Result Type". */ #define SRT_Union 1 /* Store result as keys in an index */ | > | 11200 11201 11202 11203 11204 11205 11206 11207 11208 11209 11210 11211 11212 11213 11214 | #define SF_Aggregate 0x0004 /* Contains aggregate functions */ #define SF_UsesEphemeral 0x0008 /* Uses the OpenEphemeral opcode */ #define SF_Expanded 0x0010 /* sqlite3SelectExpand() called on this */ #define SF_HasTypeInfo 0x0020 /* FROM subqueries have Table metadata */ #define SF_UseSorter 0x0040 /* Sort using a sorter */ #define SF_Values 0x0080 /* Synthesized from VALUES clause */ #define SF_Materialize 0x0100 /* Force materialization of views */ #define SF_NestedFrom 0x0200 /* Part of a parenthesized FROM clause */ /* ** The results of a select can be distributed in several ways. The ** "SRT" prefix means "SELECT Result Type". */ #define SRT_Union 1 /* Store result as keys in an index */ |
︙ | ︙ | |||
11881 11882 11883 11884 11885 11886 11887 | SQLITE_PRIVATE void sqlite3IdListDelete(sqlite3*, IdList*); SQLITE_PRIVATE void sqlite3SrcListDelete(sqlite3*, SrcList*); SQLITE_PRIVATE Index *sqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*, Token*, int, int); SQLITE_PRIVATE void sqlite3DropIndex(Parse*, SrcList*, int); SQLITE_PRIVATE int sqlite3Select(Parse*, Select*, SelectDest*); SQLITE_PRIVATE Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*, | | | | 11913 11914 11915 11916 11917 11918 11919 11920 11921 11922 11923 11924 11925 11926 11927 11928 11929 11930 11931 11932 11933 | SQLITE_PRIVATE void sqlite3IdListDelete(sqlite3*, IdList*); SQLITE_PRIVATE void sqlite3SrcListDelete(sqlite3*, SrcList*); SQLITE_PRIVATE Index *sqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*, Token*, int, int); SQLITE_PRIVATE void sqlite3DropIndex(Parse*, SrcList*, int); SQLITE_PRIVATE int sqlite3Select(Parse*, Select*, SelectDest*); SQLITE_PRIVATE Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*, Expr*,ExprList*,u16,Expr*,Expr*); SQLITE_PRIVATE void sqlite3SelectDelete(sqlite3*, Select*); SQLITE_PRIVATE Table *sqlite3SrcListLookup(Parse*, SrcList*); SQLITE_PRIVATE int sqlite3IsReadOnly(Parse*, Table*, int); SQLITE_PRIVATE void sqlite3OpenTable(Parse*, int iCur, int iDb, Table*, int); #if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY) SQLITE_PRIVATE Expr *sqlite3LimitWhere(Parse*,SrcList*,Expr*,ExprList*,Expr*,Expr*,char*); #endif SQLITE_PRIVATE void sqlite3DeleteFrom(Parse*, SrcList*, Expr*); SQLITE_PRIVATE void sqlite3Update(Parse*, SrcList*, ExprList*, Expr*, int); SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin(Parse*,SrcList*,Expr*,ExprList*,ExprList*,u16,int); SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo*); SQLITE_PRIVATE int sqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int, u8); SQLITE_PRIVATE void sqlite3ExprCodeGetColumnOfTable(Vdbe*, Table*, int, int, int); |
︙ | ︙ | |||
11955 11956 11957 11958 11959 11960 11961 | SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(Parse*,Table*,int,int, int*,int,int,int,int,int*); SQLITE_PRIVATE void sqlite3CompleteInsertion(Parse*, Table*, int, int, int*, int, int, int); SQLITE_PRIVATE int sqlite3OpenTableAndIndices(Parse*, Table*, int, int); SQLITE_PRIVATE void sqlite3BeginWriteOperation(Parse*, int, int); SQLITE_PRIVATE void sqlite3MultiWrite(Parse*); SQLITE_PRIVATE void sqlite3MayAbort(Parse*); | | | 11987 11988 11989 11990 11991 11992 11993 11994 11995 11996 11997 11998 11999 12000 12001 | SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(Parse*,Table*,int,int, int*,int,int,int,int,int*); SQLITE_PRIVATE void sqlite3CompleteInsertion(Parse*, Table*, int, int, int*, int, int, int); SQLITE_PRIVATE int sqlite3OpenTableAndIndices(Parse*, Table*, int, int); SQLITE_PRIVATE void sqlite3BeginWriteOperation(Parse*, int, int); SQLITE_PRIVATE void sqlite3MultiWrite(Parse*); SQLITE_PRIVATE void sqlite3MayAbort(Parse*); SQLITE_PRIVATE void sqlite3HaltConstraint(Parse*, int, int, char*, int); SQLITE_PRIVATE Expr *sqlite3ExprDup(sqlite3*,Expr*,int); 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 void sqlite3FuncDefInsert(FuncDefHash*, FuncDef*); SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,u8); |
︙ | ︙ | |||
12068 12069 12070 12071 12072 12073 12074 | ** x = sqlite3GetVarint32( A, &B ); ** x = sqlite3PutVarint32( A, B ); ** ** x = getVarint32( A, B ); ** x = putVarint32( A, B ); ** */ | | > | > > | 12100 12101 12102 12103 12104 12105 12106 12107 12108 12109 12110 12111 12112 12113 12114 12115 12116 12117 12118 | ** x = sqlite3GetVarint32( A, &B ); ** x = sqlite3PutVarint32( A, B ); ** ** x = getVarint32( A, B ); ** x = putVarint32( A, B ); ** */ #define getVarint32(A,B) \ (u8)((*(A)<(u8)0x80)?((B)=(u32)*(A)),1:sqlite3GetVarint32((A),(u32 *)&(B))) #define putVarint32(A,B) \ (u8)(((u32)(B)<(u32)0x80)?(*(A)=(unsigned char)(B)),1:\ sqlite3PutVarint32((A),(B))) #define getVarint sqlite3GetVarint #define putVarint sqlite3PutVarint SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(Vdbe *, Index *); SQLITE_PRIVATE void sqlite3TableAffinityStr(Vdbe *, Table *); SQLITE_PRIVATE char sqlite3CompareAffinity(Expr *pExpr, char aff2); |
︙ | ︙ | |||
12138 12139 12140 12141 12142 12143 12144 12145 12146 12147 12148 12149 12150 12151 | SQLITE_PRIVATE void sqlite3AlterFunctions(void); SQLITE_PRIVATE void sqlite3AlterRenameTable(Parse*, SrcList*, Token*); SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *); SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...); SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*); SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *, Expr *, int, int); SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*); SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*); SQLITE_PRIVATE void sqlite3ResolveSelectNames(Parse*, Select*, NameContext*); SQLITE_PRIVATE int sqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char*); SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *, Table *, int, int); SQLITE_PRIVATE void sqlite3AlterFinishAddColumn(Parse *, Token *); SQLITE_PRIVATE void sqlite3AlterBeginAddColumn(Parse *, SrcList *); SQLITE_PRIVATE CollSeq *sqlite3GetCollSeq(Parse*, u8, CollSeq *, const char*); | > | 12173 12174 12175 12176 12177 12178 12179 12180 12181 12182 12183 12184 12185 12186 12187 | SQLITE_PRIVATE void sqlite3AlterFunctions(void); SQLITE_PRIVATE void sqlite3AlterRenameTable(Parse*, SrcList*, Token*); SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *); SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...); SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*); SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *, Expr *, int, int); SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*); SQLITE_PRIVATE int sqlite3MatchSpanName(const char*, const char*, const char*, const char*); SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*); SQLITE_PRIVATE void sqlite3ResolveSelectNames(Parse*, Select*, NameContext*); SQLITE_PRIVATE int sqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char*); SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *, Table *, int, int); SQLITE_PRIVATE void sqlite3AlterFinishAddColumn(Parse *, Token *); SQLITE_PRIVATE void sqlite3AlterBeginAddColumn(Parse *, SrcList *); SQLITE_PRIVATE CollSeq *sqlite3GetCollSeq(Parse*, u8, CollSeq *, const char*); |
︙ | ︙ | |||
12276 12277 12278 12279 12280 12281 12282 12283 12284 12285 12286 12287 12288 12289 12290 12291 | #define sqlite3FkCheck(a,b,c,d) #define sqlite3FkDropTable(a,b,c) #define sqlite3FkOldmask(a,b) 0 #define sqlite3FkRequired(a,b,c,d) 0 #endif #ifndef SQLITE_OMIT_FOREIGN_KEY SQLITE_PRIVATE void sqlite3FkDelete(sqlite3 *, Table*); #else #define sqlite3FkDelete(a,b) #endif /* ** Available fault injectors. Should be numbered beginning with 0. */ #define SQLITE_FAULTINJECTOR_MALLOC 0 | > > | 12312 12313 12314 12315 12316 12317 12318 12319 12320 12321 12322 12323 12324 12325 12326 12327 12328 12329 | #define sqlite3FkCheck(a,b,c,d) #define sqlite3FkDropTable(a,b,c) #define sqlite3FkOldmask(a,b) 0 #define sqlite3FkRequired(a,b,c,d) 0 #endif #ifndef SQLITE_OMIT_FOREIGN_KEY SQLITE_PRIVATE void sqlite3FkDelete(sqlite3 *, Table*); SQLITE_PRIVATE int sqlite3FkLocateIndex(Parse*,Table*,FKey*,Index**,int**); #else #define sqlite3FkDelete(a,b) #define sqlite3FkLocateIndex(a,b,c,d,e) #endif /* ** Available fault injectors. Should be numbered beginning with 0. */ #define SQLITE_FAULTINJECTOR_MALLOC 0 |
︙ | ︙ | |||
13187 13188 13189 13190 13191 13192 13193 | VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ Op *aOp; /* Program instructions for parent frame */ Mem *aMem; /* Array of memory cells for parent frame */ u8 *aOnceFlag; /* Array of OP_Once flags for parent frame */ VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ void *token; /* Copy of SubProgram.token */ i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */ | | | 13225 13226 13227 13228 13229 13230 13231 13232 13233 13234 13235 13236 13237 13238 13239 | VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ Op *aOp; /* Program instructions for parent frame */ Mem *aMem; /* Array of memory cells for parent frame */ u8 *aOnceFlag; /* Array of OP_Once flags for parent frame */ VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ void *token; /* Copy of SubProgram.token */ i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */ int nCursor; /* Number of entries in apCsr */ int pc; /* Program Counter in parent (calling) frame */ int nOp; /* Size of aOp array */ int nMem; /* Number of entries in aMem */ int nOnceFlag; /* Number of entries in aOnceFlag */ int nChildMem; /* Number of memory cells for child frame */ int nChildCsr; /* Number of cursors for child frame */ int nChange; /* Statement changes (Vdbe.nChanges) */ |
︙ | ︙ | |||
13373 13374 13375 13376 13377 13378 13379 | Mem *pResultSet; /* Pointer to an array of results */ int nMem; /* Number of memory locations currently allocated */ int nOp; /* Number of instructions in the program */ int nOpAlloc; /* Number of slots allocated for aOp[] */ int nLabel; /* Number of labels used */ int *aLabel; /* Space to hold the labels */ u16 nResColumn; /* Number of columns in one row of the result set */ | | | 13411 13412 13413 13414 13415 13416 13417 13418 13419 13420 13421 13422 13423 13424 13425 | Mem *pResultSet; /* Pointer to an array of results */ int nMem; /* Number of memory locations currently allocated */ int nOp; /* Number of instructions in the program */ int nOpAlloc; /* Number of slots allocated for aOp[] */ int nLabel; /* Number of labels used */ int *aLabel; /* Space to hold the labels */ u16 nResColumn; /* Number of columns in one row of the result set */ int nCursor; /* Number of slots in apCsr[] */ u32 magic; /* Magic number for sanity checking */ char *zErrMsg; /* Error message written here */ Vdbe *pPrev,*pNext; /* Linked list of VDBEs with the same Vdbe.db */ VdbeCursor **apCsr; /* One element of this array for each open cursor */ Mem *aVar; /* Values for the OP_Variable opcode. */ char **azVar; /* Name of variables */ ynVar nVar; /* Number of entries in aVar[] */ |
︙ | ︙ | |||
23284 23285 23286 23287 23288 23289 23290 | { "pwrite64", (sqlite3_syscall_ptr)pwrite64, 0 }, #else { "pwrite64", (sqlite3_syscall_ptr)0, 0 }, #endif #define osPwrite64 ((ssize_t(*)(int,const void*,size_t,off_t))\ aSyscall[13].pCurrent) | < < < < | 23322 23323 23324 23325 23326 23327 23328 23329 23330 23331 23332 23333 23334 23335 23336 | { "pwrite64", (sqlite3_syscall_ptr)pwrite64, 0 }, #else { "pwrite64", (sqlite3_syscall_ptr)0, 0 }, #endif #define osPwrite64 ((ssize_t(*)(int,const void*,size_t,off_t))\ aSyscall[13].pCurrent) { "fchmod", (sqlite3_syscall_ptr)fchmod, 0 }, #define osFchmod ((int(*)(int,mode_t))aSyscall[14].pCurrent) #if defined(HAVE_POSIX_FALLOCATE) && HAVE_POSIX_FALLOCATE { "fallocate", (sqlite3_syscall_ptr)posix_fallocate, 0 }, #else { "fallocate", (sqlite3_syscall_ptr)0, 0 }, #endif |
︙ | ︙ | |||
23313 23314 23315 23316 23317 23318 23319 | { "rmdir", (sqlite3_syscall_ptr)rmdir, 0 }, #define osRmdir ((int(*)(const char*))aSyscall[19].pCurrent) { "fchown", (sqlite3_syscall_ptr)posixFchown, 0 }, #define osFchown ((int(*)(int,uid_t,gid_t))aSyscall[20].pCurrent) | < < < | 23347 23348 23349 23350 23351 23352 23353 23354 23355 23356 23357 23358 23359 23360 | { "rmdir", (sqlite3_syscall_ptr)rmdir, 0 }, #define osRmdir ((int(*)(const char*))aSyscall[19].pCurrent) { "fchown", (sqlite3_syscall_ptr)posixFchown, 0 }, #define osFchown ((int(*)(int,uid_t,gid_t))aSyscall[20].pCurrent) }; /* End of the overrideable system calls */ /* ** This is the xSetSystemCall() method of sqlite3_vfs for all of the ** "unix" VFSes. Return SQLITE_OK opon successfully updating the ** system call pointer, or SQLITE_NOTFOUND if there is no configurable ** system call named zName. |
︙ | ︙ | |||
23420 23421 23422 23423 23424 23425 23426 | ** In that way, if a database file is -rw-rw-rw or -rw-rw-r-, and a ** transaction crashes and leaves behind hot journals, then any ** process that is able to write to the database will also be able to ** recover the hot journals. */ static int robust_open(const char *z, int f, mode_t m){ int fd; | < < < | < < < < > | > > > > > | | > | > | 23451 23452 23453 23454 23455 23456 23457 23458 23459 23460 23461 23462 23463 23464 23465 23466 23467 23468 23469 23470 23471 23472 23473 23474 23475 23476 23477 23478 23479 23480 23481 23482 23483 23484 23485 23486 | ** In that way, if a database file is -rw-rw-rw or -rw-rw-r-, and a ** transaction crashes and leaves behind hot journals, then any ** process that is able to write to the database will also be able to ** recover the hot journals. */ static int robust_open(const char *z, int f, mode_t m){ int fd; mode_t m2 = m ? m : SQLITE_DEFAULT_FILE_PERMISSIONS; do{ #if defined(O_CLOEXEC) fd = osOpen(z,f|O_CLOEXEC,m2); #else fd = osOpen(z,f,m2); #endif }while( fd<0 && errno==EINTR ); if( fd>=0 ){ if( m!=0 ){ struct stat statbuf; if( osFstat(fd, &statbuf)==0 && statbuf.st_size==0 && (statbuf.st_mode&0777)!=m ){ osFchmod(fd, m); } } #if defined(FD_CLOEXEC) && (!defined(O_CLOEXEC) || O_CLOEXEC==0) osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC); #endif } return fd; } /* ** Helper functions to obtain and relinquish the global mutex. The ** global mutex is used to protect the unixInodeInfo and ** vxworksFileId objects used by this file, all of which may be |
︙ | ︙ | |||
27633 27634 27635 27636 27637 27638 27639 | pNew->pVfs = pVfs; pNew->zPath = zFilename; pNew->ctrlFlags = (u8)ctrlFlags; if( sqlite3_uri_boolean(((ctrlFlags & UNIXFILE_URI) ? zFilename : 0), "psow", SQLITE_POWERSAFE_OVERWRITE) ){ pNew->ctrlFlags |= UNIXFILE_PSOW; } | | | 27665 27666 27667 27668 27669 27670 27671 27672 27673 27674 27675 27676 27677 27678 27679 | pNew->pVfs = pVfs; pNew->zPath = zFilename; pNew->ctrlFlags = (u8)ctrlFlags; if( sqlite3_uri_boolean(((ctrlFlags & UNIXFILE_URI) ? zFilename : 0), "psow", SQLITE_POWERSAFE_OVERWRITE) ){ pNew->ctrlFlags |= UNIXFILE_PSOW; } if( strcmp(pVfs->zName,"unix-excl")==0 ){ pNew->ctrlFlags |= UNIXFILE_EXCL; } #if OS_VXWORKS pNew->pId = vxworksFindFileId(zFilename); if( pNew->pId==0 ){ ctrlFlags |= UNIXFILE_NOLOCK; |
︙ | ︙ | |||
29866 29867 29868 29869 29870 29871 29872 | UNIXVFS("unix-proxy", proxyIoFinder ), #endif }; unsigned int i; /* Loop counter */ /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ | | | 29898 29899 29900 29901 29902 29903 29904 29905 29906 29907 29908 29909 29910 29911 29912 | UNIXVFS("unix-proxy", proxyIoFinder ), #endif }; unsigned int i; /* Loop counter */ /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ assert( ArraySize(aSyscall)==21 ); /* Register all VFSes defined in the aVfs[] array */ for(i=0; i<(sizeof(aVfs)/sizeof(sqlite3_vfs)); i++){ sqlite3_vfs_register(&aVfs[i], i==0); } return SQLITE_OK; } |
︙ | ︙ | |||
31087 31088 31089 31090 31091 31092 31093 | } /* ** This function outputs the specified (ANSI) string to the Win32 debugger ** (if available). */ | | | 31119 31120 31121 31122 31123 31124 31125 31126 31127 31128 31129 31130 31131 31132 31133 | } /* ** This function outputs the specified (ANSI) string to the Win32 debugger ** (if available). */ SQLITE_API void sqlite3_win32_write_debug(const char *zBuf, int nBuf){ char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE]; int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */ if( nMin<-1 ) nMin = -1; /* all negative values become -1. */ assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE ); #if defined(SQLITE_WIN32_HAS_ANSI) if( nMin>0 ){ memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE); |
︙ | ︙ | |||
31720 31721 31722 31723 31724 31725 31726 31727 | } } #if SQLITE_OS_WINCE /************************************************************************* ** This section contains code for WinCE only. */ /* | > | | | 31752 31753 31754 31755 31756 31757 31758 31759 31760 31761 31762 31763 31764 31765 31766 31767 31768 31769 | } } #if SQLITE_OS_WINCE /************************************************************************* ** This section contains code for WinCE only. */ #if !defined(SQLITE_MSVC_LOCALTIME_API) || !SQLITE_MSVC_LOCALTIME_API /* ** The MSVC CRT on Windows CE may not have a localtime() function. So ** create a substitute. */ /* #include <time.h> */ struct tm *__cdecl localtime(const time_t *t) { static struct tm y; FILETIME uTm, lTm; SYSTEMTIME pTm; |
︙ | ︙ | |||
31746 31747 31748 31749 31750 31751 31752 31753 31754 31755 31756 31757 31758 31759 | y.tm_wday = pTm.wDayOfWeek; y.tm_mday = pTm.wDay; y.tm_hour = pTm.wHour; y.tm_min = pTm.wMinute; y.tm_sec = pTm.wSecond; return &y; } #define HANDLE_TO_WINFILE(a) (winFile*)&((char*)a)[-(int)offsetof(winFile,h)] /* ** Acquire a lock on the handle h */ static void winceMutexAcquire(HANDLE h){ | > | 31779 31780 31781 31782 31783 31784 31785 31786 31787 31788 31789 31790 31791 31792 31793 | y.tm_wday = pTm.wDayOfWeek; y.tm_mday = pTm.wDay; y.tm_hour = pTm.wHour; y.tm_min = pTm.wMinute; y.tm_sec = pTm.wSecond; return &y; } #endif #define HANDLE_TO_WINFILE(a) (winFile*)&((char*)a)[-(int)offsetof(winFile,h)] /* ** Acquire a lock on the handle h */ static void winceMutexAcquire(HANDLE h){ |
︙ | ︙ | |||
31767 31768 31769 31770 31771 31772 31773 | */ #define winceMutexRelease(h) ReleaseMutex(h) /* ** Create the mutex and shared memory used for locking in the file ** descriptor pFile */ | | > > | > | | > | | | | | > | > > > > > > | | | | 31801 31802 31803 31804 31805 31806 31807 31808 31809 31810 31811 31812 31813 31814 31815 31816 31817 31818 31819 31820 31821 31822 31823 31824 31825 31826 31827 31828 31829 31830 31831 31832 31833 31834 31835 31836 31837 31838 31839 31840 31841 31842 31843 31844 31845 31846 31847 31848 31849 31850 31851 31852 31853 31854 31855 31856 31857 31858 31859 31860 31861 31862 31863 31864 31865 31866 31867 31868 31869 31870 31871 31872 31873 31874 31875 31876 31877 31878 31879 31880 31881 31882 31883 31884 31885 31886 31887 31888 31889 31890 31891 31892 31893 31894 31895 31896 31897 31898 31899 31900 31901 31902 31903 31904 | */ #define winceMutexRelease(h) ReleaseMutex(h) /* ** Create the mutex and shared memory used for locking in the file ** descriptor pFile */ static int winceCreateLock(const char *zFilename, winFile *pFile){ LPWSTR zTok; LPWSTR zName; DWORD lastErrno; BOOL bLogged = FALSE; BOOL bInit = TRUE; zName = utf8ToUnicode(zFilename); if( zName==0 ){ /* out of memory */ return SQLITE_IOERR_NOMEM; } /* Initialize the local lockdata */ memset(&pFile->local, 0, sizeof(pFile->local)); /* Replace the backslashes from the filename and lowercase it ** to derive a mutex name. */ zTok = osCharLowerW(zName); for (;*zTok;zTok++){ if (*zTok == '\\') *zTok = '_'; } /* Create/open the named mutex */ pFile->hMutex = osCreateMutexW(NULL, FALSE, zName); if (!pFile->hMutex){ pFile->lastErrno = osGetLastError(); winLogError(SQLITE_IOERR, pFile->lastErrno, "winceCreateLock1", zFilename); sqlite3_free(zName); return SQLITE_IOERR; } /* Acquire the mutex before continuing */ winceMutexAcquire(pFile->hMutex); /* Since the names of named mutexes, semaphores, file mappings etc are ** case-sensitive, take advantage of that by uppercasing the mutex name ** and using that as the shared filemapping name. */ osCharUpperW(zName); pFile->hShared = osCreateFileMappingW(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, sizeof(winceLock), zName); /* Set a flag that indicates we're the first to create the memory so it ** must be zero-initialized */ lastErrno = osGetLastError(); if (lastErrno == ERROR_ALREADY_EXISTS){ bInit = FALSE; } sqlite3_free(zName); /* If we succeeded in making the shared memory handle, map it. */ if( pFile->hShared ){ pFile->shared = (winceLock*)osMapViewOfFile(pFile->hShared, FILE_MAP_READ|FILE_MAP_WRITE, 0, 0, sizeof(winceLock)); /* If mapping failed, close the shared memory handle and erase it */ if( !pFile->shared ){ pFile->lastErrno = osGetLastError(); winLogError(SQLITE_IOERR, pFile->lastErrno, "winceCreateLock2", zFilename); bLogged = TRUE; osCloseHandle(pFile->hShared); pFile->hShared = NULL; } } /* If shared memory could not be created, then close the mutex and fail */ if( pFile->hShared==NULL ){ if( !bLogged ){ pFile->lastErrno = lastErrno; winLogError(SQLITE_IOERR, pFile->lastErrno, "winceCreateLock3", zFilename); bLogged = TRUE; } winceMutexRelease(pFile->hMutex); osCloseHandle(pFile->hMutex); pFile->hMutex = NULL; return SQLITE_IOERR; } /* Initialize the shared memory if we're supposed to */ if( bInit ){ memset(pFile->shared, 0, sizeof(winceLock)); } winceMutexRelease(pFile->hMutex); return SQLITE_OK; } /* ** Destroy the part of winFile that deals with wince locks */ static void winceDestroyLock(winFile *pFile){ if (pFile->hMutex){ |
︙ | ︙ | |||
31924 31925 31926 31927 31928 31929 31930 | pFile->shared->nReaders ++; } bReturn = TRUE; } } /* Want a pending lock? */ | | > | > | 31969 31970 31971 31972 31973 31974 31975 31976 31977 31978 31979 31980 31981 31982 31983 31984 31985 31986 31987 31988 31989 31990 31991 31992 31993 31994 31995 | pFile->shared->nReaders ++; } bReturn = TRUE; } } /* Want a pending lock? */ else if (dwFileOffsetLow == (DWORD)PENDING_BYTE && nNumberOfBytesToLockLow == 1){ /* If no pending lock has been acquired, then acquire it */ if (pFile->shared->bPending == 0) { pFile->shared->bPending = TRUE; pFile->local.bPending = TRUE; bReturn = TRUE; } } /* Want a reserved lock? */ else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE && nNumberOfBytesToLockLow == 1){ if (pFile->shared->bReserved == 0) { pFile->shared->bReserved = TRUE; pFile->local.bReserved = TRUE; bReturn = TRUE; } } |
︙ | ︙ | |||
31977 31978 31979 31980 31981 31982 31983 | pFile->local.bExclusive = FALSE; pFile->shared->bExclusive = FALSE; bReturn = TRUE; } /* Did we just have a reader lock? */ else if (pFile->local.nReaders){ | | > | > | > | 32024 32025 32026 32027 32028 32029 32030 32031 32032 32033 32034 32035 32036 32037 32038 32039 32040 32041 32042 32043 32044 32045 32046 32047 32048 32049 32050 32051 32052 32053 32054 32055 32056 32057 32058 32059 32060 | pFile->local.bExclusive = FALSE; pFile->shared->bExclusive = FALSE; bReturn = TRUE; } /* Did we just have a reader lock? */ else if (pFile->local.nReaders){ assert(nNumberOfBytesToUnlockLow == (DWORD)SHARED_SIZE || nNumberOfBytesToUnlockLow == 1); pFile->local.nReaders --; if (pFile->local.nReaders == 0) { pFile->shared->nReaders --; } bReturn = TRUE; } } /* Releasing a pending lock */ else if (dwFileOffsetLow == (DWORD)PENDING_BYTE && nNumberOfBytesToUnlockLow == 1){ if (pFile->local.bPending){ pFile->local.bPending = FALSE; pFile->shared->bPending = FALSE; bReturn = TRUE; } } /* Releasing a reserved lock */ else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE && nNumberOfBytesToUnlockLow == 1){ if (pFile->local.bReserved) { pFile->local.bReserved = FALSE; pFile->shared->bReserved = FALSE; bReturn = TRUE; } } |
︙ | ︙ | |||
32162 32163 32164 32165 32166 32167 32168 32169 32170 32171 32172 32173 32174 32175 | winFile *pFile = (winFile*)id; assert( id!=0 ); #ifndef SQLITE_OMIT_WAL assert( pFile->pShm==0 ); #endif OSTRACE(("CLOSE %d\n", pFile->h)); do{ rc = osCloseHandle(pFile->h); /* SimulateIOError( rc=0; cnt=MX_CLOSE_ATTEMPT; ); */ }while( rc==0 && ++cnt < MX_CLOSE_ATTEMPT && (sqlite3_win32_sleep(100), 1) ); #if SQLITE_OS_WINCE #define WINCE_DELETION_ATTEMPTS 3 winceDestroyLock(pFile); | > | 32212 32213 32214 32215 32216 32217 32218 32219 32220 32221 32222 32223 32224 32225 32226 | winFile *pFile = (winFile*)id; assert( id!=0 ); #ifndef SQLITE_OMIT_WAL assert( pFile->pShm==0 ); #endif OSTRACE(("CLOSE %d\n", pFile->h)); assert( pFile->h!=NULL && pFile->h!=INVALID_HANDLE_VALUE ); do{ rc = osCloseHandle(pFile->h); /* SimulateIOError( rc=0; cnt=MX_CLOSE_ATTEMPT; ); */ }while( rc==0 && ++cnt < MX_CLOSE_ATTEMPT && (sqlite3_win32_sleep(100), 1) ); #if SQLITE_OS_WINCE #define WINCE_DELETION_ATTEMPTS 3 winceDestroyLock(pFile); |
︙ | ︙ | |||
32854 32855 32856 32857 32858 32859 32860 | win32IoerrRetryDelay = a[1]; }else{ a[1] = win32IoerrRetryDelay; } return SQLITE_OK; } case SQLITE_FCNTL_TEMPFILENAME: { | | | 32905 32906 32907 32908 32909 32910 32911 32912 32913 32914 32915 32916 32917 32918 32919 | win32IoerrRetryDelay = a[1]; }else{ a[1] = win32IoerrRetryDelay; } return SQLITE_OK; } case SQLITE_FCNTL_TEMPFILENAME: { char *zTFile = sqlite3MallocZero( pFile->pVfs->mxPathname ); if( zTFile ){ getTempname(pFile->pVfs->mxPathname, zTFile); *(char**)pArg = zTFile; } return SQLITE_OK; } } |
︙ | ︙ | |||
33078 33079 33080 33081 33082 33083 33084 | (int)osGetCurrentProcessId(), i, bRc ? "ok" : "failed")); bRc = osCloseHandle(p->aRegion[i].hMap); OSTRACE(("SHM-PURGE pid-%d close region=%d %s\n", (int)osGetCurrentProcessId(), i, bRc ? "ok" : "failed")); } | | | 33129 33130 33131 33132 33133 33134 33135 33136 33137 33138 33139 33140 33141 33142 33143 | (int)osGetCurrentProcessId(), i, bRc ? "ok" : "failed")); bRc = osCloseHandle(p->aRegion[i].hMap); OSTRACE(("SHM-PURGE pid-%d close region=%d %s\n", (int)osGetCurrentProcessId(), i, bRc ? "ok" : "failed")); } if( p->hFile.h!=NULL && p->hFile.h!=INVALID_HANDLE_VALUE ){ SimulateIOErrorBenign(1); winClose((sqlite3_file *)&p->hFile); SimulateIOErrorBenign(0); } if( deleteFlag ){ SimulateIOErrorBenign(1); sqlite3BeginBenignMalloc(); |
︙ | ︙ | |||
33158 33159 33160 33161 33162 33163 33164 | rc = SQLITE_IOERR_NOMEM; goto shm_open_err; } rc = winOpen(pDbFd->pVfs, pShmNode->zFilename, /* Name of the file (UTF-8) */ (sqlite3_file*)&pShmNode->hFile, /* File handle here */ | | | 33209 33210 33211 33212 33213 33214 33215 33216 33217 33218 33219 33220 33221 33222 33223 | rc = SQLITE_IOERR_NOMEM; goto shm_open_err; } rc = winOpen(pDbFd->pVfs, pShmNode->zFilename, /* Name of the file (UTF-8) */ (sqlite3_file*)&pShmNode->hFile, /* File handle here */ SQLITE_OPEN_WAL | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0); if( SQLITE_OK!=rc ){ goto shm_open_err; } /* Check to see if another process is holding the dead-man switch. ** If not, truncate the file to zero length. |
︙ | ︙ | |||
33773 33774 33775 33776 33777 33778 33779 | /* Assert that the upper layer has set one of the "file-type" flags. */ assert( eType==SQLITE_OPEN_MAIN_DB || eType==SQLITE_OPEN_TEMP_DB || eType==SQLITE_OPEN_MAIN_JOURNAL || eType==SQLITE_OPEN_TEMP_JOURNAL || eType==SQLITE_OPEN_SUBJOURNAL || eType==SQLITE_OPEN_MASTER_JOURNAL || eType==SQLITE_OPEN_TRANSIENT_DB || eType==SQLITE_OPEN_WAL ); | | | > < < > | 33824 33825 33826 33827 33828 33829 33830 33831 33832 33833 33834 33835 33836 33837 33838 33839 33840 33841 33842 33843 33844 33845 33846 33847 33848 33849 33850 33851 33852 33853 33854 | /* Assert that the upper layer has set one of the "file-type" flags. */ assert( eType==SQLITE_OPEN_MAIN_DB || eType==SQLITE_OPEN_TEMP_DB || eType==SQLITE_OPEN_MAIN_JOURNAL || eType==SQLITE_OPEN_TEMP_JOURNAL || eType==SQLITE_OPEN_SUBJOURNAL || eType==SQLITE_OPEN_MASTER_JOURNAL || eType==SQLITE_OPEN_TRANSIENT_DB || eType==SQLITE_OPEN_WAL ); assert( pFile!=0 ); memset(pFile, 0, sizeof(winFile)); pFile->h = INVALID_HANDLE_VALUE; #if SQLITE_OS_WINRT if( !sqlite3_temp_directory ){ sqlite3_log(SQLITE_ERROR, "sqlite3_temp_directory variable should be set for WinRT"); } #endif /* If the second argument to this function is NULL, generate a ** temporary file name to use */ if( !zUtf8Name ){ assert(isDelete && !isOpenJournal); memset(zTmpname, 0, MAX_PATH+2); rc = getTempname(MAX_PATH+2, zTmpname); if( rc!=SQLITE_OK ){ return rc; } zUtf8Name = zTmpname; } |
︙ | ︙ | |||
33912 33913 33914 33915 33916 33917 33918 | if( h==INVALID_HANDLE_VALUE ){ pFile->lastErrno = lastErrno; winLogError(SQLITE_CANTOPEN, pFile->lastErrno, "winOpen", zUtf8Name); sqlite3_free(zConverted); if( isReadWrite && !isExclusive ){ return winOpen(pVfs, zName, id, | | > > < < < < < < < < < < < < < | | > > > > > > > > > | 33963 33964 33965 33966 33967 33968 33969 33970 33971 33972 33973 33974 33975 33976 33977 33978 33979 33980 33981 33982 33983 33984 33985 33986 33987 33988 33989 33990 33991 33992 33993 33994 33995 33996 33997 33998 33999 34000 34001 34002 34003 34004 34005 34006 34007 34008 34009 34010 34011 34012 34013 34014 34015 34016 | if( h==INVALID_HANDLE_VALUE ){ pFile->lastErrno = lastErrno; winLogError(SQLITE_CANTOPEN, pFile->lastErrno, "winOpen", zUtf8Name); sqlite3_free(zConverted); if( isReadWrite && !isExclusive ){ return winOpen(pVfs, zName, id, ((flags|SQLITE_OPEN_READONLY) & ~(SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE)), pOutFlags); }else{ return SQLITE_CANTOPEN_BKPT; } } if( pOutFlags ){ if( isReadWrite ){ *pOutFlags = SQLITE_OPEN_READWRITE; }else{ *pOutFlags = SQLITE_OPEN_READONLY; } } #if SQLITE_OS_WINCE if( isReadWrite && eType==SQLITE_OPEN_MAIN_DB && (rc = winceCreateLock(zName, pFile))!=SQLITE_OK ){ osCloseHandle(h); sqlite3_free(zConverted); return rc; } if( isTemp ){ pFile->zDeleteOnClose = zConverted; }else #endif { sqlite3_free(zConverted); } pFile->pMethod = &winIoMethod; pFile->pVfs = pVfs; pFile->h = h; if( sqlite3_uri_boolean(zName, "psow", SQLITE_POWERSAFE_OVERWRITE) ){ pFile->ctrlFlags |= WINFILE_PSOW; } pFile->lastErrno = NO_ERROR; pFile->zPath = zName; OpenCounter(+1); return rc; } /* ** Delete the named file. |
︙ | ︙ | |||
33999 34000 34001 34002 34003 34004 34005 | WIN32_FILE_ATTRIBUTE_DATA sAttrData; memset(&sAttrData, 0, sizeof(sAttrData)); if ( osGetFileAttributesExW(zConverted, GetFileExInfoStandard, &sAttrData) ){ attr = sAttrData.dwFileAttributes; }else{ lastErrno = osGetLastError(); | | > | > | 34048 34049 34050 34051 34052 34053 34054 34055 34056 34057 34058 34059 34060 34061 34062 34063 34064 34065 34066 34067 34068 34069 34070 34071 34072 34073 34074 34075 34076 | WIN32_FILE_ATTRIBUTE_DATA sAttrData; memset(&sAttrData, 0, sizeof(sAttrData)); if ( osGetFileAttributesExW(zConverted, GetFileExInfoStandard, &sAttrData) ){ attr = sAttrData.dwFileAttributes; }else{ lastErrno = osGetLastError(); if( lastErrno==ERROR_FILE_NOT_FOUND || lastErrno==ERROR_PATH_NOT_FOUND ){ rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */ }else{ rc = SQLITE_ERROR; } break; } #else attr = osGetFileAttributesW(zConverted); #endif if ( attr==INVALID_FILE_ATTRIBUTES ){ lastErrno = osGetLastError(); if( lastErrno==ERROR_FILE_NOT_FOUND || lastErrno==ERROR_PATH_NOT_FOUND ){ rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */ }else{ rc = SQLITE_ERROR; } break; } if ( attr&FILE_ATTRIBUTE_DIRECTORY ){ |
︙ | ︙ | |||
34038 34039 34040 34041 34042 34043 34044 | } #ifdef SQLITE_WIN32_HAS_ANSI else{ do { attr = osGetFileAttributesA(zConverted); if ( attr==INVALID_FILE_ATTRIBUTES ){ lastErrno = osGetLastError(); | | > | 34089 34090 34091 34092 34093 34094 34095 34096 34097 34098 34099 34100 34101 34102 34103 34104 | } #ifdef SQLITE_WIN32_HAS_ANSI else{ do { attr = osGetFileAttributesA(zConverted); if ( attr==INVALID_FILE_ATTRIBUTES ){ lastErrno = osGetLastError(); if( lastErrno==ERROR_FILE_NOT_FOUND || lastErrno==ERROR_PATH_NOT_FOUND ){ rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */ }else{ rc = SQLITE_ERROR; } break; } if ( attr&FILE_ATTRIBUTE_DIRECTORY ){ |
︙ | ︙ | |||
34206 34207 34208 34209 34210 34211 34212 | ** NOTE: We are dealing with a relative path name and the data ** directory has been set. Therefore, use it as the basis ** for converting the relative path name to an absolute ** one by prepending the data directory and a slash. */ char zOut[MAX_PATH+1]; memset(zOut, 0, MAX_PATH+1); | | > < < < < < | | 34258 34259 34260 34261 34262 34263 34264 34265 34266 34267 34268 34269 34270 34271 34272 34273 34274 34275 34276 34277 | ** NOTE: We are dealing with a relative path name and the data ** directory has been set. Therefore, use it as the basis ** for converting the relative path name to an absolute ** one by prepending the data directory and a slash. */ char zOut[MAX_PATH+1]; memset(zOut, 0, MAX_PATH+1); cygwin_conv_path(CCP_POSIX_TO_WIN_A|CCP_RELATIVE, zRelative, zOut, MAX_PATH+1); sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s\\%s", sqlite3_data_directory, zOut); }else{ cygwin_conv_path(CCP_POSIX_TO_WIN_A, zRelative, zFull, nFull); } return SQLITE_OK; #endif #if (SQLITE_OS_WINCE || SQLITE_OS_WINRT) && !defined(__CYGWIN__) SimulateIOError( return SQLITE_ERROR ); /* WinCE has no concept of a relative pathname, or so I am told. */ |
︙ | ︙ | |||
34373 34374 34375 34376 34377 34378 34379 | sqlite3_free(zConverted); return (void*)h; } static void winDlError(sqlite3_vfs *pVfs, int nBuf, char *zBufOut){ UNUSED_PARAMETER(pVfs); getLastErrorMsg(osGetLastError(), nBuf, zBufOut); } | | | | 34421 34422 34423 34424 34425 34426 34427 34428 34429 34430 34431 34432 34433 34434 34435 34436 34437 | sqlite3_free(zConverted); return (void*)h; } static void winDlError(sqlite3_vfs *pVfs, int nBuf, char *zBufOut){ UNUSED_PARAMETER(pVfs); getLastErrorMsg(osGetLastError(), nBuf, zBufOut); } static void (*winDlSym(sqlite3_vfs *pVfs,void *pH,const char *zSym))(void){ UNUSED_PARAMETER(pVfs); return (void(*)(void))osGetProcAddressA((HANDLE)pH, zSym); } static void winDlClose(sqlite3_vfs *pVfs, void *pHandle){ UNUSED_PARAMETER(pVfs); osFreeLibrary((HANDLE)pHandle); } #else /* if SQLITE_OMIT_LOAD_EXTENSION is defined: */ #define winDlOpen 0 |
︙ | ︙ | |||
34473 34474 34475 34476 34477 34478 34479 | FILETIME ft; static const sqlite3_int64 winFiletimeEpoch = 23058135*(sqlite3_int64)8640000; #ifdef SQLITE_TEST static const sqlite3_int64 unixEpoch = 24405875*(sqlite3_int64)8640000; #endif /* 2^32 - to avoid use of LL and warnings in gcc */ static const sqlite3_int64 max32BitValue = | | > | 34521 34522 34523 34524 34525 34526 34527 34528 34529 34530 34531 34532 34533 34534 34535 34536 | FILETIME ft; static const sqlite3_int64 winFiletimeEpoch = 23058135*(sqlite3_int64)8640000; #ifdef SQLITE_TEST static const sqlite3_int64 unixEpoch = 24405875*(sqlite3_int64)8640000; #endif /* 2^32 - to avoid use of LL and warnings in gcc */ static const sqlite3_int64 max32BitValue = (sqlite3_int64)2000000000 + (sqlite3_int64)2000000000 + (sqlite3_int64)294967296; #if SQLITE_OS_WINCE SYSTEMTIME time; osGetSystemTime(&time); /* if SystemTimeToFileTime() fails, it returns zero. */ if (!osSystemTimeToFileTime(&time,&ft)){ return SQLITE_ERROR; |
︙ | ︙ | |||
39151 39152 39153 39154 39155 39156 39157 39158 39159 39160 39161 39162 39163 39164 | if( rc2==SQLITE_FULL || rc2==SQLITE_IOERR ){ pPager->errCode = rc; pPager->eState = PAGER_ERROR; } return rc; } /* ** This routine ends a transaction. A transaction is usually ended by ** either a COMMIT or a ROLLBACK operation. This routine may be called ** after rollback of a hot-journal, or if an error occurs while opening ** the journal file or writing the very first journal-header of a ** database transaction. ** | > > | 39200 39201 39202 39203 39204 39205 39206 39207 39208 39209 39210 39211 39212 39213 39214 39215 | if( rc2==SQLITE_FULL || rc2==SQLITE_IOERR ){ pPager->errCode = rc; pPager->eState = PAGER_ERROR; } return rc; } static int pager_truncate(Pager *pPager, Pgno nPage); /* ** This routine ends a transaction. A transaction is usually ended by ** either a COMMIT or a ROLLBACK operation. This routine may be called ** after rollback of a hot-journal, or if an error occurs while opening ** the journal file or writing the very first journal-header of a ** database transaction. ** |
︙ | ︙ | |||
39204 39205 39206 39207 39208 39209 39210 | ** database then the IO error code is returned to the user. If the ** operation to finalize the journal file fails, then the code still ** tries to unlock the database file if not in exclusive mode. If the ** unlock operation fails as well, then the first error code related ** to the first error encountered (the journal finalization one) is ** returned. */ | | | 39255 39256 39257 39258 39259 39260 39261 39262 39263 39264 39265 39266 39267 39268 39269 | ** database then the IO error code is returned to the user. If the ** operation to finalize the journal file fails, then the code still ** tries to unlock the database file if not in exclusive mode. If the ** unlock operation fails as well, then the first error code related ** to the first error encountered (the journal finalization one) is ** returned. */ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){ int rc = SQLITE_OK; /* Error code from journal finalization operation */ int rc2 = SQLITE_OK; /* Error code from db file unlock operation */ /* Do nothing if the pager does not have an open write transaction ** or at least a RESERVED lock. This function may be called when there ** is no write-transaction active but a RESERVED or greater lock is ** held under two circumstances: |
︙ | ︙ | |||
39290 39291 39292 39293 39294 39295 39296 39297 39298 39299 39300 39301 39302 39303 39304 | if( pagerUseWal(pPager) ){ /* Drop the WAL write-lock, if any. Also, if the connection was in ** locking_mode=exclusive mode but is no longer, drop the EXCLUSIVE ** lock held on the database file. */ rc2 = sqlite3WalEndWriteTransaction(pPager->pWal); assert( rc2==SQLITE_OK ); } if( !pPager->exclusiveMode && (!pagerUseWal(pPager) || sqlite3WalExclusiveMode(pPager->pWal, 0)) ){ rc2 = pagerUnlockDb(pPager, SHARED_LOCK); pPager->changeCountDone = 0; } pPager->eState = PAGER_READER; | > > > > > > > > > > | 39341 39342 39343 39344 39345 39346 39347 39348 39349 39350 39351 39352 39353 39354 39355 39356 39357 39358 39359 39360 39361 39362 39363 39364 39365 | if( pagerUseWal(pPager) ){ /* Drop the WAL write-lock, if any. Also, if the connection was in ** locking_mode=exclusive mode but is no longer, drop the EXCLUSIVE ** lock held on the database file. */ rc2 = sqlite3WalEndWriteTransaction(pPager->pWal); assert( rc2==SQLITE_OK ); }else if( rc==SQLITE_OK && bCommit && pPager->dbFileSize>pPager->dbSize ){ /* This branch is taken when committing a transaction in rollback-journal ** mode if the database file on disk is larger than the database image. ** At this point the journal has been finalized and the transaction ** successfully committed, but the EXCLUSIVE lock is still held on the ** file. So it is safe to truncate the database file to its minimum ** required size. */ assert( pPager->eLock==EXCLUSIVE_LOCK ); rc = pager_truncate(pPager, pPager->dbSize); } if( !pPager->exclusiveMode && (!pagerUseWal(pPager) || sqlite3WalExclusiveMode(pPager->pWal, 0)) ){ rc2 = pagerUnlockDb(pPager, SHARED_LOCK); pPager->changeCountDone = 0; } pPager->eState = PAGER_READER; |
︙ | ︙ | |||
39329 39330 39331 39332 39333 39334 39335 | assert( assert_pager_state(pPager) ); if( pPager->eState>=PAGER_WRITER_LOCKED ){ sqlite3BeginBenignMalloc(); sqlite3PagerRollback(pPager); sqlite3EndBenignMalloc(); }else if( !pPager->exclusiveMode ){ assert( pPager->eState==PAGER_READER ); | | | 39390 39391 39392 39393 39394 39395 39396 39397 39398 39399 39400 39401 39402 39403 39404 | assert( assert_pager_state(pPager) ); if( pPager->eState>=PAGER_WRITER_LOCKED ){ sqlite3BeginBenignMalloc(); sqlite3PagerRollback(pPager); sqlite3EndBenignMalloc(); }else if( !pPager->exclusiveMode ){ assert( pPager->eState==PAGER_READER ); pager_end_transaction(pPager, 0, 0); } } pager_unlock(pPager); } /* ** Parameter aData must point to a buffer of pPager->pageSize bytes |
︙ | ︙ | |||
40104 40105 40106 40107 40108 40109 40110 | } if( rc==SQLITE_OK && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN) ){ rc = sqlite3PagerSync(pPager); } if( rc==SQLITE_OK ){ | | | 40165 40166 40167 40168 40169 40170 40171 40172 40173 40174 40175 40176 40177 40178 40179 | } if( rc==SQLITE_OK && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN) ){ rc = sqlite3PagerSync(pPager); } if( rc==SQLITE_OK ){ rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0); testcase( rc!=SQLITE_OK ); } if( rc==SQLITE_OK && zMaster[0] && res ){ /* If there was a master journal and this routine will return success, ** see if it is possible to delete the master journal. */ rc = pager_delmaster(pPager, zMaster); |
︙ | ︙ | |||
41056 41057 41058 41059 41060 41061 41062 41063 41064 41065 41066 41067 | #endif /* ** Truncate the in-memory database file image to nPage pages. This ** function does not actually modify the database file on disk. It ** just sets the internal state of the pager object so that the ** truncation will be done when the current transaction is committed. */ SQLITE_PRIVATE void sqlite3PagerTruncateImage(Pager *pPager, Pgno nPage){ assert( pPager->dbSize>=nPage ); assert( pPager->eState>=PAGER_WRITER_CACHEMOD ); pPager->dbSize = nPage; | > > > > > > | > > > > > > > > | 41117 41118 41119 41120 41121 41122 41123 41124 41125 41126 41127 41128 41129 41130 41131 41132 41133 41134 41135 41136 41137 41138 41139 41140 41141 41142 41143 41144 41145 41146 41147 41148 41149 41150 | #endif /* ** Truncate the in-memory database file image to nPage pages. This ** function does not actually modify the database file on disk. It ** just sets the internal state of the pager object so that the ** truncation will be done when the current transaction is committed. ** ** This function is only called right before committing a transaction. ** Once this function has been called, the transaction must either be ** rolled back or committed. It is not safe to call this function and ** then continue writing to the database. */ SQLITE_PRIVATE void sqlite3PagerTruncateImage(Pager *pPager, Pgno nPage){ assert( pPager->dbSize>=nPage ); assert( pPager->eState>=PAGER_WRITER_CACHEMOD ); pPager->dbSize = nPage; /* At one point the code here called assertTruncateConstraint() to ** ensure that all pages being truncated away by this operation are, ** if one or more savepoints are open, present in the savepoint ** journal so that they can be restored if the savepoint is rolled ** back. This is no longer necessary as this function is now only ** called right before committing a transaction. So although the ** Pager object may still have open savepoints (Pager.nSavepoint!=0), ** they cannot be rolled back. So the assertTruncateConstraint() call ** is no longer correct. */ } /* ** This function is called before attempting a hot-journal rollback. It ** syncs the journal file to disk, then sets pPager->journalHdr to the ** size of the journal file so that the pager_playback() routine knows |
︙ | ︙ | |||
42114 42115 42116 42117 42118 42119 42120 42121 42122 42123 42124 42125 42126 42127 | if( pPager->eLock<=SHARED_LOCK ){ rc = hasHotJournal(pPager, &bHotJournal); } if( rc!=SQLITE_OK ){ goto failed; } if( bHotJournal ){ /* Get an EXCLUSIVE lock on the database file. At this point it is ** important that a RESERVED lock is not obtained on the way to the ** EXCLUSIVE lock. If it were, another process might open the ** database file, detect the RESERVED lock, and conclude that the ** database is safe to read while this process is still rolling the ** hot-journal back. ** | > > > > > | 42189 42190 42191 42192 42193 42194 42195 42196 42197 42198 42199 42200 42201 42202 42203 42204 42205 42206 42207 | if( pPager->eLock<=SHARED_LOCK ){ rc = hasHotJournal(pPager, &bHotJournal); } if( rc!=SQLITE_OK ){ goto failed; } if( bHotJournal ){ if( pPager->readOnly ){ rc = SQLITE_READONLY_ROLLBACK; goto failed; } /* Get an EXCLUSIVE lock on the database file. At this point it is ** important that a RESERVED lock is not obtained on the way to the ** EXCLUSIVE lock. If it were, another process might open the ** database file, detect the RESERVED lock, and conclude that the ** database is safe to read while this process is still rolling the ** hot-journal back. ** |
︙ | ︙ | |||
43198 43199 43200 43201 43202 43203 43204 | } } #else rc = pager_incr_changecounter(pPager, 0); #endif if( rc!=SQLITE_OK ) goto commit_phase_one_exit; | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | 43278 43279 43280 43281 43282 43283 43284 43285 43286 43287 43288 43289 43290 43291 | } } #else rc = pager_incr_changecounter(pPager, 0); #endif if( rc!=SQLITE_OK ) goto commit_phase_one_exit; /* Write the master journal name into the journal file. If a master ** journal file name has already been written to the journal file, ** or if zMaster is NULL (no master journal), then this call is a no-op. */ rc = writeMasterJournal(pPager, zMaster); if( rc!=SQLITE_OK ) goto commit_phase_one_exit; |
︙ | ︙ | |||
43255 43256 43257 43258 43259 43260 43261 | rc = pager_write_pagelist(pPager,sqlite3PcacheDirtyList(pPager->pPCache)); if( rc!=SQLITE_OK ){ assert( rc!=SQLITE_IOERR_BLOCKED ); goto commit_phase_one_exit; } sqlite3PcacheCleanAll(pPager->pPCache); | | | | | > > > | | 43305 43306 43307 43308 43309 43310 43311 43312 43313 43314 43315 43316 43317 43318 43319 43320 43321 43322 43323 43324 43325 43326 | rc = pager_write_pagelist(pPager,sqlite3PcacheDirtyList(pPager->pPCache)); if( rc!=SQLITE_OK ){ assert( rc!=SQLITE_IOERR_BLOCKED ); goto commit_phase_one_exit; } sqlite3PcacheCleanAll(pPager->pPCache); /* If the file on disk is smaller than the database image, use ** pager_truncate to grow the file here. This can happen if the database ** image was extended as part of the current transaction and then the ** last page in the db image moved to the free-list. In this case the ** last page is never written out to disk, leaving the database file ** undersized. Fix this now if it is the case. */ if( pPager->dbSize>pPager->dbFileSize ){ Pgno nNew = pPager->dbSize - (pPager->dbSize==PAGER_MJ_PGNO(pPager)); assert( pPager->eState==PAGER_WRITER_DBMOD ); rc = pager_truncate(pPager, nNew); if( rc!=SQLITE_OK ) goto commit_phase_one_exit; } /* Finally, sync the database file. */ |
︙ | ︙ | |||
43332 43333 43334 43335 43336 43337 43338 | ){ assert( pPager->journalOff==JOURNAL_HDR_SZ(pPager) || !pPager->journalOff ); pPager->eState = PAGER_READER; return SQLITE_OK; } PAGERTRACE(("COMMIT %d\n", PAGERID(pPager))); | | | 43385 43386 43387 43388 43389 43390 43391 43392 43393 43394 43395 43396 43397 43398 43399 | ){ assert( pPager->journalOff==JOURNAL_HDR_SZ(pPager) || !pPager->journalOff ); pPager->eState = PAGER_READER; return SQLITE_OK; } PAGERTRACE(("COMMIT %d\n", PAGERID(pPager))); rc = pager_end_transaction(pPager, pPager->setMaster, 1); return pager_error(pPager, rc); } /* ** If a write transaction is open, then all changes made within the ** transaction are reverted and the current write-transaction is closed. ** The pager falls back to PAGER_READER state if successful, or PAGER_ERROR |
︙ | ︙ | |||
43377 43378 43379 43380 43381 43382 43383 | assert( assert_pager_state(pPager) ); if( pPager->eState==PAGER_ERROR ) return pPager->errCode; if( pPager->eState<=PAGER_READER ) return SQLITE_OK; if( pagerUseWal(pPager) ){ int rc2; rc = sqlite3PagerSavepoint(pPager, SAVEPOINT_ROLLBACK, -1); | | | | 43430 43431 43432 43433 43434 43435 43436 43437 43438 43439 43440 43441 43442 43443 43444 43445 43446 43447 43448 | assert( assert_pager_state(pPager) ); if( pPager->eState==PAGER_ERROR ) return pPager->errCode; if( pPager->eState<=PAGER_READER ) return SQLITE_OK; if( pagerUseWal(pPager) ){ int rc2; rc = sqlite3PagerSavepoint(pPager, SAVEPOINT_ROLLBACK, -1); rc2 = pager_end_transaction(pPager, pPager->setMaster, 0); if( rc==SQLITE_OK ) rc = rc2; }else if( !isOpen(pPager->jfd) || pPager->eState==PAGER_WRITER_LOCKED ){ int eState = pPager->eState; rc = pager_end_transaction(pPager, 0, 0); if( !MEMDB && eState>PAGER_WRITER_LOCKED ){ /* This can happen using journal_mode=off. Move the pager to the error ** state to indicate that the contents of the cache may not be trusted. ** Any active readers will get SQLITE_ABORT. */ pPager->errCode = SQLITE_ABORT; pPager->eState = PAGER_ERROR; |
︙ | ︙ | |||
43779 43780 43781 43782 43783 43784 43785 | ** ** If the isCommit flag is set, there is no need to remember that ** the journal needs to be sync()ed before database page pPg->pgno ** can be written to. The caller has already promised not to write to it. */ if( (pPg->flags&PGHDR_NEED_SYNC) && !isCommit ){ needSyncPgno = pPg->pgno; | > | | 43832 43833 43834 43835 43836 43837 43838 43839 43840 43841 43842 43843 43844 43845 43846 43847 | ** ** If the isCommit flag is set, there is no need to remember that ** the journal needs to be sync()ed before database page pPg->pgno ** can be written to. The caller has already promised not to write to it. */ if( (pPg->flags&PGHDR_NEED_SYNC) && !isCommit ){ needSyncPgno = pPg->pgno; assert( pPager->journalMode==PAGER_JOURNALMODE_OFF || pageInJournal(pPg) || pPg->pgno>pPager->dbOrigSize ); assert( pPg->flags&PGHDR_DIRTY ); } /* If the cache contains a page with page-number pgno, remove it ** from its hash chain. Also, if the PGHDR_NEED_SYNC flag was set for ** page pgno before the 'move' operation, it needs to be retained ** for the page moved there. |
︙ | ︙ | |||
47783 47784 47785 47786 47787 47788 47789 47790 47791 47792 47793 47794 47795 47796 | sqlite3 *db; /* Database connection currently using this Btree */ BtCursor *pCursor; /* A list of all open cursors */ MemPage *pPage1; /* First page of the database */ u8 openFlags; /* Flags to sqlite3BtreeOpen() */ #ifndef SQLITE_OMIT_AUTOVACUUM u8 autoVacuum; /* True if auto-vacuum is enabled */ u8 incrVacuum; /* True if incr-vacuum is enabled */ #endif u8 inTransaction; /* Transaction state */ u8 max1bytePayload; /* Maximum first byte of cell for a 1-byte payload */ u16 btsFlags; /* Boolean parameters. See BTS_* macros below */ u16 maxLocal; /* Maximum local payload in non-LEAFDATA tables */ u16 minLocal; /* Minimum local payload in non-LEAFDATA tables */ u16 maxLeaf; /* Maximum local payload in a LEAFDATA table */ | > | 47837 47838 47839 47840 47841 47842 47843 47844 47845 47846 47847 47848 47849 47850 47851 | sqlite3 *db; /* Database connection currently using this Btree */ BtCursor *pCursor; /* A list of all open cursors */ MemPage *pPage1; /* First page of the database */ u8 openFlags; /* Flags to sqlite3BtreeOpen() */ #ifndef SQLITE_OMIT_AUTOVACUUM u8 autoVacuum; /* True if auto-vacuum is enabled */ u8 incrVacuum; /* True if incr-vacuum is enabled */ u8 bDoTruncate; /* True to truncate db on commit */ #endif u8 inTransaction; /* Transaction state */ u8 max1bytePayload; /* Maximum first byte of cell for a 1-byte payload */ u16 btsFlags; /* Boolean parameters. See BTS_* macros below */ u16 maxLocal; /* Maximum local payload in non-LEAFDATA tables */ u16 minLocal; /* Minimum local payload in non-LEAFDATA tables */ u16 maxLeaf; /* Maximum local payload in a LEAFDATA table */ |
︙ | ︙ | |||
48349 48350 48351 48352 48353 48354 48355 48356 48357 48358 48359 48360 48361 48362 | ** This routine is used to extract the "offset to cell content area" value ** from the header of a btree page. If the page size is 65536 and the page ** is empty, the offset should be 65536, but the 2-byte value stores zero. ** This routine makes the necessary adjustment to 65536. */ #define get2byteNotZero(X) (((((int)get2byte(X))-1)&0xffff)+1) #ifndef SQLITE_OMIT_SHARED_CACHE /* ** A list of BtShared objects that are eligible for participation ** in shared cache. This variable has file scope during normal builds, ** but the test harness needs to access it so we make it global for ** test builds. ** | > > > > > > > > > > > > > > > > > > > | 48404 48405 48406 48407 48408 48409 48410 48411 48412 48413 48414 48415 48416 48417 48418 48419 48420 48421 48422 48423 48424 48425 48426 48427 48428 48429 48430 48431 48432 48433 48434 48435 48436 | ** This routine is used to extract the "offset to cell content area" value ** from the header of a btree page. If the page size is 65536 and the page ** is empty, the offset should be 65536, but the 2-byte value stores zero. ** This routine makes the necessary adjustment to 65536. */ #define get2byteNotZero(X) (((((int)get2byte(X))-1)&0xffff)+1) /* ** Values passed as the 5th argument to allocateBtreePage() */ #define BTALLOC_ANY 0 /* Allocate any page */ #define BTALLOC_EXACT 1 /* Allocate exact page if possible */ #define BTALLOC_LE 2 /* Allocate any page <= the parameter */ /* ** Macro IfNotOmitAV(x) returns (x) if SQLITE_OMIT_AUTOVACUUM is not ** defined, or 0 if it is. For example: ** ** bIncrVacuum = IfNotOmitAV(pBtShared->incrVacuum); */ #ifndef SQLITE_OMIT_AUTOVACUUM #define IfNotOmitAV(expr) (expr) #else #define IfNotOmitAV(expr) 0 #endif #ifndef SQLITE_OMIT_SHARED_CACHE /* ** A list of BtShared objects that are eligible for participation ** in shared cache. This variable has file scope during normal builds, ** but the test harness needs to access it so we make it global for ** test builds. ** |
︙ | ︙ | |||
50901 50902 50903 50904 50905 50906 50907 50908 50909 50910 50911 50912 50913 50914 | /* If the btree is already in a write-transaction, or it ** is already in a read-transaction and a read-transaction ** is requested, this is a no-op. */ if( p->inTrans==TRANS_WRITE || (p->inTrans==TRANS_READ && !wrflag) ){ goto trans_begun; } /* Write transactions are not possible on a read-only database */ if( (pBt->btsFlags & BTS_READ_ONLY)!=0 && wrflag ){ rc = SQLITE_READONLY; goto trans_begun; } | > | 50975 50976 50977 50978 50979 50980 50981 50982 50983 50984 50985 50986 50987 50988 50989 | /* If the btree is already in a write-transaction, or it ** is already in a read-transaction and a read-transaction ** is requested, this is a no-op. */ if( p->inTrans==TRANS_WRITE || (p->inTrans==TRANS_READ && !wrflag) ){ goto trans_begun; } assert( IfNotOmitAV(pBt->bDoTruncate)==0 ); /* Write transactions are not possible on a read-only database */ if( (pBt->btsFlags & BTS_READ_ONLY)!=0 && wrflag ){ rc = SQLITE_READONLY; goto trans_begun; } |
︙ | ︙ | |||
51217 51218 51219 51220 51221 51222 51223 | return rc; } /* Forward declaration required by incrVacuumStep(). */ static int allocateBtreePage(BtShared *, MemPage **, Pgno *, Pgno, u8); /* | | | | > | | | > > | | | < < < < | | | 51292 51293 51294 51295 51296 51297 51298 51299 51300 51301 51302 51303 51304 51305 51306 51307 51308 51309 51310 51311 51312 51313 51314 51315 51316 51317 51318 51319 51320 51321 51322 | return rc; } /* Forward declaration required by incrVacuumStep(). */ static int allocateBtreePage(BtShared *, MemPage **, Pgno *, Pgno, u8); /* ** Perform a single step of an incremental-vacuum. If successful, return ** SQLITE_OK. If there is no work to do (and therefore no point in ** calling this function again), return SQLITE_DONE. Or, if an error ** occurs, return some other error code. ** ** More specificly, this function attempts to re-organize the database so ** that the last page of the file currently in use is no longer in use. ** ** Parameter nFin is the number of pages that this database would contain ** were this function called until it returns SQLITE_DONE. ** ** If the bCommit parameter is non-zero, this function assumes that the ** caller will keep calling incrVacuumStep() until it returns SQLITE_DONE ** or an error. bCommit is passed true for an auto-vacuum-on-commmit ** operation, or false for an incremental vacuum. */ static int incrVacuumStep(BtShared *pBt, Pgno nFin, Pgno iLastPg, int bCommit){ Pgno nFreeList; /* Number of pages still on the free-list */ int rc; assert( sqlite3_mutex_held(pBt->mutex) ); assert( iLastPg>nFin ); if( !PTRMAP_ISPAGE(pBt, iLastPg) && iLastPg!=PENDING_BYTE_PAGE(pBt) ){ |
︙ | ︙ | |||
51259 51260 51261 51262 51263 51264 51265 | return rc; } if( eType==PTRMAP_ROOTPAGE ){ return SQLITE_CORRUPT_BKPT; } if( eType==PTRMAP_FREEPAGE ){ | | | | > > | | > > > > | | < < | < | > | | | | < < > | | | < > | > > > > > > | | > > > > > | > | | < < | | > > > > > > > | | | | | > > > | 51333 51334 51335 51336 51337 51338 51339 51340 51341 51342 51343 51344 51345 51346 51347 51348 51349 51350 51351 51352 51353 51354 51355 51356 51357 51358 51359 51360 51361 51362 51363 51364 51365 51366 51367 51368 51369 51370 51371 51372 51373 51374 51375 51376 51377 51378 51379 51380 51381 51382 51383 51384 51385 51386 51387 51388 51389 51390 51391 51392 51393 51394 51395 51396 51397 51398 51399 51400 51401 51402 51403 51404 51405 51406 51407 51408 51409 51410 51411 51412 51413 51414 51415 51416 51417 51418 51419 51420 51421 51422 51423 51424 51425 51426 51427 51428 51429 51430 51431 51432 51433 51434 51435 51436 51437 51438 51439 51440 51441 51442 51443 51444 51445 51446 51447 51448 51449 51450 51451 51452 51453 51454 51455 51456 51457 51458 51459 51460 51461 51462 51463 51464 51465 51466 51467 | return rc; } if( eType==PTRMAP_ROOTPAGE ){ return SQLITE_CORRUPT_BKPT; } if( eType==PTRMAP_FREEPAGE ){ if( bCommit==0 ){ /* Remove the page from the files free-list. This is not required ** if bCommit is non-zero. In that case, the free-list will be ** truncated to zero after this function returns, so it doesn't ** matter if it still contains some garbage entries. */ Pgno iFreePg; MemPage *pFreePg; rc = allocateBtreePage(pBt, &pFreePg, &iFreePg, iLastPg, BTALLOC_EXACT); if( rc!=SQLITE_OK ){ return rc; } assert( iFreePg==iLastPg ); releasePage(pFreePg); } } else { Pgno iFreePg; /* Index of free page to move pLastPg to */ MemPage *pLastPg; u8 eMode = BTALLOC_ANY; /* Mode parameter for allocateBtreePage() */ Pgno iNear = 0; /* nearby parameter for allocateBtreePage() */ rc = btreeGetPage(pBt, iLastPg, &pLastPg, 0); if( rc!=SQLITE_OK ){ return rc; } /* If bCommit is zero, this loop runs exactly once and page pLastPg ** is swapped with the first free page pulled off the free list. ** ** On the other hand, if bCommit is greater than zero, then keep ** looping until a free-page located within the first nFin pages ** of the file is found. */ if( bCommit==0 ){ eMode = BTALLOC_LE; iNear = nFin; } do { MemPage *pFreePg; rc = allocateBtreePage(pBt, &pFreePg, &iFreePg, iNear, eMode); if( rc!=SQLITE_OK ){ releasePage(pLastPg); return rc; } releasePage(pFreePg); }while( bCommit && iFreePg>nFin ); assert( iFreePg<iLastPg ); rc = relocatePage(pBt, pLastPg, eType, iPtrPage, iFreePg, bCommit); releasePage(pLastPg); if( rc!=SQLITE_OK ){ return rc; } } } if( bCommit==0 ){ do { iLastPg--; }while( iLastPg==PENDING_BYTE_PAGE(pBt) || PTRMAP_ISPAGE(pBt, iLastPg) ); pBt->bDoTruncate = 1; pBt->nPage = iLastPg; } return SQLITE_OK; } /* ** The database opened by the first argument is an auto-vacuum database ** nOrig pages in size containing nFree free pages. Return the expected ** size of the database in pages following an auto-vacuum operation. */ static Pgno finalDbSize(BtShared *pBt, Pgno nOrig, Pgno nFree){ int nEntry; /* Number of entries on one ptrmap page */ Pgno nPtrmap; /* Number of PtrMap pages to be freed */ Pgno nFin; /* Return value */ nEntry = pBt->usableSize/5; nPtrmap = (nFree-nOrig+PTRMAP_PAGENO(pBt, nOrig)+nEntry)/nEntry; nFin = nOrig - nFree - nPtrmap; if( nOrig>PENDING_BYTE_PAGE(pBt) && nFin<PENDING_BYTE_PAGE(pBt) ){ nFin--; } while( PTRMAP_ISPAGE(pBt, nFin) || nFin==PENDING_BYTE_PAGE(pBt) ){ nFin--; } return nFin; } /* ** A write-transaction must be opened before calling this function. ** It performs a single unit of work towards an incremental vacuum. ** ** If the incremental vacuum is finished after this function has run, ** SQLITE_DONE is returned. If it is not finished, but no error occurred, ** SQLITE_OK is returned. Otherwise an SQLite error code. */ SQLITE_PRIVATE int sqlite3BtreeIncrVacuum(Btree *p){ int rc; BtShared *pBt = p->pBt; sqlite3BtreeEnter(p); assert( pBt->inTransaction==TRANS_WRITE && p->inTrans==TRANS_WRITE ); if( !pBt->autoVacuum ){ rc = SQLITE_DONE; }else{ Pgno nOrig = btreePagecount(pBt); Pgno nFree = get4byte(&pBt->pPage1->aData[36]); Pgno nFin = finalDbSize(pBt, nOrig, nFree); if( nOrig<nFin ){ rc = SQLITE_CORRUPT_BKPT; }else if( nFree>0 ){ invalidateAllOverflowCache(pBt); rc = incrVacuumStep(pBt, nFin, nOrig, 0); if( rc==SQLITE_OK ){ rc = sqlite3PagerWrite(pBt->pPage1->pDbPage); put4byte(&pBt->pPage1->aData[28], pBt->nPage); } }else{ rc = SQLITE_DONE; } } sqlite3BtreeLeave(p); return rc; } /* |
︙ | ︙ | |||
51383 51384 51385 51386 51387 51388 51389 | assert( sqlite3_mutex_held(pBt->mutex) ); invalidateAllOverflowCache(pBt); assert(pBt->autoVacuum); if( !pBt->incrVacuum ){ Pgno nFin; /* Number of pages in database after autovacuuming */ Pgno nFree; /* Number of pages on the freelist initially */ | < < < | < < < < < < < | | | 51480 51481 51482 51483 51484 51485 51486 51487 51488 51489 51490 51491 51492 51493 51494 51495 51496 51497 51498 51499 51500 51501 51502 51503 51504 51505 51506 51507 51508 51509 51510 51511 51512 51513 51514 51515 51516 51517 51518 | assert( sqlite3_mutex_held(pBt->mutex) ); invalidateAllOverflowCache(pBt); assert(pBt->autoVacuum); if( !pBt->incrVacuum ){ Pgno nFin; /* Number of pages in database after autovacuuming */ Pgno nFree; /* Number of pages on the freelist initially */ Pgno iFree; /* The next page to be freed */ Pgno nOrig; /* Database size before freeing */ nOrig = btreePagecount(pBt); if( PTRMAP_ISPAGE(pBt, nOrig) || nOrig==PENDING_BYTE_PAGE(pBt) ){ /* It is not possible to create a database for which the final page ** is either a pointer-map page or the pending-byte page. If one ** is encountered, this indicates corruption. */ return SQLITE_CORRUPT_BKPT; } nFree = get4byte(&pBt->pPage1->aData[36]); nFin = finalDbSize(pBt, nOrig, nFree); if( nFin>nOrig ) return SQLITE_CORRUPT_BKPT; for(iFree=nOrig; iFree>nFin && rc==SQLITE_OK; iFree--){ rc = incrVacuumStep(pBt, nFin, iFree, 1); } if( (rc==SQLITE_DONE || rc==SQLITE_OK) && nFree>0 ){ rc = sqlite3PagerWrite(pBt->pPage1->pDbPage); put4byte(&pBt->pPage1->aData[32], 0); put4byte(&pBt->pPage1->aData[36], 0); put4byte(&pBt->pPage1->aData[28], nFin); pBt->bDoTruncate = 1; pBt->nPage = nFin; } if( rc!=SQLITE_OK ){ sqlite3PagerRollback(pPager); } } |
︙ | ︙ | |||
51472 51473 51474 51475 51476 51477 51478 51479 51480 51481 51482 51483 51484 51485 51486 51487 51488 51489 51490 51491 51492 51493 51494 51495 51496 51497 51498 51499 51500 | if( pBt->autoVacuum ){ rc = autoVacuumCommit(pBt); if( rc!=SQLITE_OK ){ sqlite3BtreeLeave(p); return rc; } } #endif rc = sqlite3PagerCommitPhaseOne(pBt->pPager, zMaster, 0); sqlite3BtreeLeave(p); } return rc; } /* ** This function is called from both BtreeCommitPhaseTwo() and BtreeRollback() ** at the conclusion of a transaction. */ static void btreeEndTransaction(Btree *p){ BtShared *pBt = p->pBt; assert( sqlite3BtreeHoldsMutex(p) ); btreeClearHasContent(pBt); if( p->inTrans>TRANS_NONE && p->db->activeVdbeCnt>1 ){ /* If there are other active statements that belong to this database ** handle, downgrade to a read-only transaction. The other statements ** may still be reading from the database. */ downgradeAllSharedCacheTableLocks(p); p->inTrans = TRANS_READ; | > > > > > > | 51559 51560 51561 51562 51563 51564 51565 51566 51567 51568 51569 51570 51571 51572 51573 51574 51575 51576 51577 51578 51579 51580 51581 51582 51583 51584 51585 51586 51587 51588 51589 51590 51591 51592 51593 | if( pBt->autoVacuum ){ rc = autoVacuumCommit(pBt); if( rc!=SQLITE_OK ){ sqlite3BtreeLeave(p); return rc; } } if( pBt->bDoTruncate ){ sqlite3PagerTruncateImage(pBt->pPager, pBt->nPage); } #endif rc = sqlite3PagerCommitPhaseOne(pBt->pPager, zMaster, 0); sqlite3BtreeLeave(p); } return rc; } /* ** This function is called from both BtreeCommitPhaseTwo() and BtreeRollback() ** at the conclusion of a transaction. */ static void btreeEndTransaction(Btree *p){ BtShared *pBt = p->pBt; assert( sqlite3BtreeHoldsMutex(p) ); #ifndef SQLITE_OMIT_AUTOVACUUM pBt->bDoTruncate = 0; #endif btreeClearHasContent(pBt); if( p->inTrans>TRANS_NONE && p->db->activeVdbeCnt>1 ){ /* If there are other active statements that belong to this database ** handle, downgrade to a read-only transaction. The other statements ** may still be reading from the database. */ downgradeAllSharedCacheTableLocks(p); p->inTrans = TRANS_READ; |
︙ | ︙ | |||
53159 53160 53161 53162 53163 53164 53165 | ** been referenced and the calling routine is responsible for calling ** sqlite3PagerUnref() on the new page when it is done. ** ** SQLITE_OK is returned on success. Any other return value indicates ** an error. *ppPage and *pPgno are undefined in the event of an error. ** Do not invoke sqlite3PagerUnref() on *ppPage if an error is returned. ** | | | | | > > | | | | | > | > | | | | | | | | | > > | | > | 53252 53253 53254 53255 53256 53257 53258 53259 53260 53261 53262 53263 53264 53265 53266 53267 53268 53269 53270 53271 53272 53273 53274 53275 53276 53277 53278 53279 53280 53281 53282 53283 53284 53285 53286 53287 53288 53289 53290 53291 53292 53293 53294 53295 53296 53297 53298 53299 53300 53301 53302 53303 53304 53305 53306 53307 53308 53309 53310 53311 53312 53313 53314 53315 53316 53317 53318 53319 53320 53321 53322 53323 53324 53325 53326 53327 53328 53329 53330 53331 53332 53333 53334 53335 53336 53337 | ** been referenced and the calling routine is responsible for calling ** sqlite3PagerUnref() on the new page when it is done. ** ** SQLITE_OK is returned on success. Any other return value indicates ** an error. *ppPage and *pPgno are undefined in the event of an error. ** Do not invoke sqlite3PagerUnref() on *ppPage if an error is returned. ** ** If the "nearby" parameter is not 0, then an effort is made to ** locate a page close to the page number "nearby". This can be used in an ** attempt to keep related pages close to each other in the database file, ** which in turn can make database access faster. ** ** If the eMode parameter is BTALLOC_EXACT and the nearby page exists ** anywhere on the free-list, then it is guaranteed to be returned. If ** eMode is BTALLOC_LT then the page returned will be less than or equal ** to nearby if any such page exists. If eMode is BTALLOC_ANY then there ** are no restrictions on which page is returned. */ static int allocateBtreePage( BtShared *pBt, /* The btree */ MemPage **ppPage, /* Store pointer to the allocated page here */ Pgno *pPgno, /* Store the page number here */ Pgno nearby, /* Search for a page near this one */ u8 eMode /* BTALLOC_EXACT, BTALLOC_LT, or BTALLOC_ANY */ ){ MemPage *pPage1; int rc; u32 n; /* Number of pages on the freelist */ u32 k; /* Number of leaves on the trunk of the freelist */ MemPage *pTrunk = 0; MemPage *pPrevTrunk = 0; Pgno mxPage; /* Total size of the database file */ assert( sqlite3_mutex_held(pBt->mutex) ); assert( eMode==BTALLOC_ANY || (nearby>0 && IfNotOmitAV(pBt->autoVacuum)) ); pPage1 = pBt->pPage1; mxPage = btreePagecount(pBt); n = get4byte(&pPage1->aData[36]); testcase( n==mxPage-1 ); if( n>=mxPage ){ return SQLITE_CORRUPT_BKPT; } if( n>0 ){ /* There are pages on the freelist. Reuse one of those pages. */ Pgno iTrunk; u8 searchList = 0; /* If the free-list must be searched for 'nearby' */ /* If eMode==BTALLOC_EXACT and a query of the pointer-map ** shows that the page 'nearby' is somewhere on the free-list, then ** the entire-list will be searched for that page. */ #ifndef SQLITE_OMIT_AUTOVACUUM if( eMode==BTALLOC_EXACT ){ if( nearby<=mxPage ){ u8 eType; assert( nearby>0 ); assert( pBt->autoVacuum ); rc = ptrmapGet(pBt, nearby, &eType, 0); if( rc ) return rc; if( eType==PTRMAP_FREEPAGE ){ searchList = 1; } } }else if( eMode==BTALLOC_LE ){ searchList = 1; } #endif /* Decrement the free-list count by 1. Set iTrunk to the index of the ** first free-list trunk page. iPrevTrunk is initially 1. */ rc = sqlite3PagerWrite(pPage1->pDbPage); if( rc ) return rc; put4byte(&pPage1->aData[36], n-1); /* The code within this loop is run only once if the 'searchList' variable ** is not true. Otherwise, it runs once for each trunk-page on the ** free-list until the page 'nearby' is located (eMode==BTALLOC_EXACT) ** or until a page less than 'nearby' is located (eMode==BTALLOC_LT) */ do { pPrevTrunk = pTrunk; if( pPrevTrunk ){ iTrunk = get4byte(&pPrevTrunk->aData[0]); }else{ iTrunk = get4byte(&pPage1->aData[32]); |
︙ | ︙ | |||
53265 53266 53267 53268 53269 53270 53271 | pTrunk = 0; TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1)); }else if( k>(u32)(pBt->usableSize/4 - 2) ){ /* Value of k is out of range. Database corruption */ rc = SQLITE_CORRUPT_BKPT; goto end_allocate_page; #ifndef SQLITE_OMIT_AUTOVACUUM | | > > | | 53365 53366 53367 53368 53369 53370 53371 53372 53373 53374 53375 53376 53377 53378 53379 53380 53381 53382 53383 53384 53385 | pTrunk = 0; TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1)); }else if( k>(u32)(pBt->usableSize/4 - 2) ){ /* Value of k is out of range. Database corruption */ rc = SQLITE_CORRUPT_BKPT; goto end_allocate_page; #ifndef SQLITE_OMIT_AUTOVACUUM }else if( searchList && (nearby==iTrunk || (iTrunk<nearby && eMode==BTALLOC_LE)) ){ /* The list is being searched and this trunk page is the page ** to allocate, regardless of whether it has leaves. */ *pPgno = iTrunk; *ppPage = pTrunk; searchList = 0; rc = sqlite3PagerWrite(pTrunk->pDbPage); if( rc ){ goto end_allocate_page; } if( k==0 ){ |
︙ | ︙ | |||
53332 53333 53334 53335 53336 53337 53338 | }else if( k>0 ){ /* Extract a leaf from the trunk */ u32 closest; Pgno iPage; unsigned char *aData = pTrunk->aData; if( nearby>0 ){ u32 i; | < > > > > > > > > > > | | | | | | > | > > | 53434 53435 53436 53437 53438 53439 53440 53441 53442 53443 53444 53445 53446 53447 53448 53449 53450 53451 53452 53453 53454 53455 53456 53457 53458 53459 53460 53461 53462 53463 53464 53465 53466 53467 53468 53469 53470 53471 53472 53473 53474 53475 53476 53477 53478 53479 53480 53481 | }else if( k>0 ){ /* Extract a leaf from the trunk */ u32 closest; Pgno iPage; unsigned char *aData = pTrunk->aData; if( nearby>0 ){ u32 i; closest = 0; if( eMode==BTALLOC_LE ){ for(i=0; i<k; i++){ iPage = get4byte(&aData[8+i*4]); if( iPage<=nearby ){ closest = i; break; } } }else{ int dist; dist = sqlite3AbsInt32(get4byte(&aData[8]) - nearby); for(i=1; i<k; i++){ int d2 = sqlite3AbsInt32(get4byte(&aData[8+i*4]) - nearby); if( d2<dist ){ closest = i; dist = d2; } } } }else{ closest = 0; } iPage = get4byte(&aData[8+closest*4]); testcase( iPage==mxPage ); if( iPage>mxPage ){ rc = SQLITE_CORRUPT_BKPT; goto end_allocate_page; } testcase( iPage==mxPage ); if( !searchList || (iPage==nearby || (iPage<nearby && eMode==BTALLOC_LE)) ){ int noContent; *pPgno = iPage; TRACE(("ALLOCATE: %d was leaf %d of %d on trunk %d" ": %d more free pages\n", *pPgno, closest+1, k, pTrunk->pgno, n-1)); rc = sqlite3PagerWrite(pTrunk->pDbPage); if( rc ) goto end_allocate_page; |
︙ | ︙ | |||
53380 53381 53382 53383 53384 53385 53386 | searchList = 0; } } releasePage(pPrevTrunk); pPrevTrunk = 0; }while( searchList ); }else{ | | > > > > > > > > > > > > > > > > > > | | | | 53494 53495 53496 53497 53498 53499 53500 53501 53502 53503 53504 53505 53506 53507 53508 53509 53510 53511 53512 53513 53514 53515 53516 53517 53518 53519 53520 53521 53522 53523 53524 53525 53526 53527 53528 53529 53530 53531 53532 53533 53534 53535 53536 53537 53538 53539 53540 53541 53542 53543 53544 53545 53546 53547 53548 53549 53550 53551 53552 53553 53554 53555 53556 | searchList = 0; } } releasePage(pPrevTrunk); pPrevTrunk = 0; }while( searchList ); }else{ /* There are no pages on the freelist, so append a new page to the ** database image. ** ** Normally, new pages allocated by this block can be requested from the ** pager layer with the 'no-content' flag set. This prevents the pager ** from trying to read the pages content from disk. However, if the ** current transaction has already run one or more incremental-vacuum ** steps, then the page we are about to allocate may contain content ** that is required in the event of a rollback. In this case, do ** not set the no-content flag. This causes the pager to load and journal ** the current page content before overwriting it. ** ** Note that the pager will not actually attempt to load or journal ** content for any page that really does lie past the end of the database ** file on disk. So the effects of disabling the no-content optimization ** here are confined to those pages that lie between the end of the ** database image and the end of the database file. */ int bNoContent = (0==IfNotOmitAV(pBt->bDoTruncate)); rc = sqlite3PagerWrite(pBt->pPage1->pDbPage); if( rc ) return rc; pBt->nPage++; if( pBt->nPage==PENDING_BYTE_PAGE(pBt) ) pBt->nPage++; #ifndef SQLITE_OMIT_AUTOVACUUM if( pBt->autoVacuum && PTRMAP_ISPAGE(pBt, pBt->nPage) ){ /* If *pPgno refers to a pointer-map page, allocate two new pages ** at the end of the file instead of one. The first allocated page ** becomes a new pointer-map page, the second is used by the caller. */ MemPage *pPg = 0; TRACE(("ALLOCATE: %d from end of file (pointer-map page)\n", pBt->nPage)); assert( pBt->nPage!=PENDING_BYTE_PAGE(pBt) ); rc = btreeGetPage(pBt, pBt->nPage, &pPg, bNoContent); if( rc==SQLITE_OK ){ rc = sqlite3PagerWrite(pPg->pDbPage); releasePage(pPg); } if( rc ) return rc; pBt->nPage++; if( pBt->nPage==PENDING_BYTE_PAGE(pBt) ){ pBt->nPage++; } } #endif put4byte(28 + (u8*)pBt->pPage1->aData, pBt->nPage); *pPgno = pBt->nPage; assert( *pPgno!=PENDING_BYTE_PAGE(pBt) ); rc = btreeGetPage(pBt, *pPgno, ppPage, bNoContent); if( rc ) return rc; rc = sqlite3PagerWrite((*ppPage)->pDbPage); if( rc!=SQLITE_OK ){ releasePage(*ppPage); } TRACE(("ALLOCATE: %d from end of file\n", *pPgno)); } |
︙ | ︙ | |||
55425 55426 55427 55428 55429 55430 55431 | } assert( pgnoRoot>=3 ); /* Allocate a page. The page that currently resides at pgnoRoot will ** be moved to the allocated page (unless the allocated page happens ** to reside at pgnoRoot). */ | | | 55557 55558 55559 55560 55561 55562 55563 55564 55565 55566 55567 55568 55569 55570 55571 | } assert( pgnoRoot>=3 ); /* Allocate a page. The page that currently resides at pgnoRoot will ** be moved to the allocated page (unless the allocated page happens ** to reside at pgnoRoot). */ rc = allocateBtreePage(pBt, &pPageMove, &pgnoMove, pgnoRoot, BTALLOC_EXACT); if( rc!=SQLITE_OK ){ return rc; } if( pgnoMove!=pgnoRoot ){ /* pgnoRoot is the page that will be used for the root-page of ** the new table (assuming an error did not occur). But we were |
︙ | ︙ | |||
56332 56333 56334 56335 56336 56337 56338 | if( !sCheck.aPgRef ){ *pnErr = 1; sqlite3BtreeLeave(p); return 0; } i = PENDING_BYTE_PAGE(pBt); if( i<=sCheck.nPage ) setPageReferenced(&sCheck, i); | | | 56464 56465 56466 56467 56468 56469 56470 56471 56472 56473 56474 56475 56476 56477 56478 | if( !sCheck.aPgRef ){ *pnErr = 1; sqlite3BtreeLeave(p); return 0; } i = PENDING_BYTE_PAGE(pBt); if( i<=sCheck.nPage ) setPageReferenced(&sCheck, i); sqlite3StrAccumInit(&sCheck.errMsg, zErr, sizeof(zErr), SQLITE_MAX_LENGTH); sCheck.errMsg.useMalloc = 2; /* Check the integrity of the freelist */ checkList(&sCheck, 1, get4byte(&pBt->pPage1->aData[32]), get4byte(&pBt->pPage1->aData[36]), "Main freelist: "); |
︙ | ︙ | |||
56867 56868 56869 56870 56871 56872 56873 | } /* ** Parameter zSrcData points to a buffer containing the data for ** page iSrcPg from the source database. Copy this data into the ** destination database. */ | | > > > > > | 56999 57000 57001 57002 57003 57004 57005 57006 57007 57008 57009 57010 57011 57012 57013 57014 57015 57016 57017 57018 | } /* ** Parameter zSrcData points to a buffer containing the data for ** page iSrcPg from the source database. Copy this data into the ** destination database. */ static int backupOnePage( sqlite3_backup *p, /* Backup handle */ Pgno iSrcPg, /* Source database page to backup */ const u8 *zSrcData, /* Source database page data */ int bUpdate /* True for an update, false otherwise */ ){ Pager * const pDestPager = sqlite3BtreePager(p->pDest); const int nSrcPgsz = sqlite3BtreeGetPageSize(p->pSrc); int nDestPgsz = sqlite3BtreeGetPageSize(p->pDest); const int nCopy = MIN(nSrcPgsz, nDestPgsz); const i64 iEnd = (i64)iSrcPg*(i64)nSrcPgsz; #ifdef SQLITE_HAS_CODEC /* Use BtreeGetReserveNoMutex() for the source b-tree, as although it is |
︙ | ︙ | |||
56940 56941 56942 56943 56944 56945 56946 56947 56948 56949 56950 56951 56952 56953 | ** and the pager code use this trick (clearing the first byte ** of the page 'extra' space to invalidate the Btree layers ** cached parse of the page). MemPage.isInit is marked ** "MUST BE FIRST" for this purpose. */ memcpy(zOut, zIn, nCopy); ((u8 *)sqlite3PagerGetExtra(pDestPg))[0] = 0; } sqlite3PagerUnref(pDestPg); } return rc; } | > > > | 57077 57078 57079 57080 57081 57082 57083 57084 57085 57086 57087 57088 57089 57090 57091 57092 57093 | ** and the pager code use this trick (clearing the first byte ** of the page 'extra' space to invalidate the Btree layers ** cached parse of the page). MemPage.isInit is marked ** "MUST BE FIRST" for this purpose. */ memcpy(zOut, zIn, nCopy); ((u8 *)sqlite3PagerGetExtra(pDestPg))[0] = 0; if( iOff==0 && bUpdate==0 ){ sqlite3Put4byte(&zOut[28], sqlite3BtreeLastPage(p->pSrc)); } } sqlite3PagerUnref(pDestPg); } return rc; } |
︙ | ︙ | |||
57046 57047 57048 57049 57050 57051 57052 | assert( nSrcPage>=0 ); for(ii=0; (nPage<0 || ii<nPage) && p->iNext<=(Pgno)nSrcPage && !rc; ii++){ const Pgno iSrcPg = p->iNext; /* Source page number */ if( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ){ DbPage *pSrcPg; /* Source page object */ rc = sqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg); if( rc==SQLITE_OK ){ | | | 57186 57187 57188 57189 57190 57191 57192 57193 57194 57195 57196 57197 57198 57199 57200 | assert( nSrcPage>=0 ); for(ii=0; (nPage<0 || ii<nPage) && p->iNext<=(Pgno)nSrcPage && !rc; ii++){ const Pgno iSrcPg = p->iNext; /* Source page number */ if( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ){ DbPage *pSrcPg; /* Source page object */ rc = sqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg); if( rc==SQLITE_OK ){ rc = backupOnePage(p, iSrcPg, sqlite3PagerGetData(pSrcPg), 0); sqlite3PagerUnref(pSrcPg); } } p->iNext++; } if( rc==SQLITE_OK ){ p->nPagecount = nSrcPage; |
︙ | ︙ | |||
57109 57110 57111 57112 57113 57114 57115 | if( nDestTruncate==(int)PENDING_BYTE_PAGE(p->pDest->pBt) ){ nDestTruncate--; } }else{ nDestTruncate = nSrcPage * (pgszSrc/pgszDest); } assert( nDestTruncate>0 ); | < > > | > > > > > > > > > > > > | > | 57249 57250 57251 57252 57253 57254 57255 57256 57257 57258 57259 57260 57261 57262 57263 57264 57265 57266 57267 57268 57269 57270 57271 57272 57273 57274 57275 57276 57277 57278 57279 57280 57281 57282 57283 57284 57285 57286 57287 57288 57289 57290 57291 57292 57293 57294 57295 57296 57297 57298 57299 57300 57301 57302 57303 57304 57305 57306 57307 | if( nDestTruncate==(int)PENDING_BYTE_PAGE(p->pDest->pBt) ){ nDestTruncate--; } }else{ nDestTruncate = nSrcPage * (pgszSrc/pgszDest); } assert( nDestTruncate>0 ); if( pgszSrc<pgszDest ){ /* If the source page-size is smaller than the destination page-size, ** two extra things may need to happen: ** ** * The destination may need to be truncated, and ** ** * Data stored on the pages immediately following the ** pending-byte page in the source database may need to be ** copied into the destination database. */ const i64 iSize = (i64)pgszSrc * (i64)nSrcPage; sqlite3_file * const pFile = sqlite3PagerFile(pDestPager); Pgno iPg; int nDstPage; i64 iOff; i64 iEnd; assert( pFile ); assert( nDestTruncate==0 || (i64)nDestTruncate*(i64)pgszDest >= iSize || ( nDestTruncate==(int)(PENDING_BYTE_PAGE(p->pDest->pBt)-1) && iSize>=PENDING_BYTE && iSize<=PENDING_BYTE+pgszDest )); /* This block ensures that all data required to recreate the original ** database has been stored in the journal for pDestPager and the ** journal synced to disk. So at this point we may safely modify ** the database file in any way, knowing that if a power failure ** occurs, the original database will be reconstructed from the ** journal file. */ sqlite3PagerPagecount(pDestPager, &nDstPage); for(iPg=nDestTruncate; rc==SQLITE_OK && iPg<=(Pgno)nDstPage; iPg++){ if( iPg!=PENDING_BYTE_PAGE(p->pDest->pBt) ){ DbPage *pPg; rc = sqlite3PagerGet(pDestPager, iPg, &pPg); if( rc==SQLITE_OK ){ rc = sqlite3PagerWrite(pPg); sqlite3PagerUnref(pPg); } } } if( rc==SQLITE_OK ){ rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 1); } /* Write the extra pages and truncate the database file as required */ iEnd = MIN(PENDING_BYTE + pgszDest, iSize); for( iOff=PENDING_BYTE+pgszSrc; rc==SQLITE_OK && iOff<iEnd; iOff+=pgszSrc |
︙ | ︙ | |||
57166 57167 57168 57169 57170 57171 57172 57173 57174 57175 57176 57177 57178 57179 | } /* Sync the database file to disk. */ if( rc==SQLITE_OK ){ rc = sqlite3PagerSync(pDestPager); } }else{ rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 0); } /* Finish committing the transaction to the destination database. */ if( SQLITE_OK==rc && SQLITE_OK==(rc = sqlite3BtreeCommitPhaseTwo(p->pDest, 0)) ){ | > | 57320 57321 57322 57323 57324 57325 57326 57327 57328 57329 57330 57331 57332 57333 57334 | } /* Sync the database file to disk. */ if( rc==SQLITE_OK ){ rc = sqlite3PagerSync(pDestPager); } }else{ sqlite3PagerTruncateImage(pDestPager, nDestTruncate); rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 0); } /* Finish committing the transaction to the destination database. */ if( SQLITE_OK==rc && SQLITE_OK==(rc = sqlite3BtreeCommitPhaseTwo(p->pDest, 0)) ){ |
︙ | ︙ | |||
57294 57295 57296 57297 57298 57299 57300 | /* The backup process p has already copied page iPage. But now it ** has been modified by a transaction on the source pager. Copy ** the new data into the backup. */ int rc; assert( p->pDestDb ); sqlite3_mutex_enter(p->pDestDb->mutex); | | | 57449 57450 57451 57452 57453 57454 57455 57456 57457 57458 57459 57460 57461 57462 57463 | /* The backup process p has already copied page iPage. But now it ** has been modified by a transaction on the source pager. Copy ** the new data into the backup. */ int rc; assert( p->pDestDb ); sqlite3_mutex_enter(p->pDestDb->mutex); rc = backupOnePage(p, iPage, aData, 1); sqlite3_mutex_leave(p->pDestDb->mutex); assert( rc!=SQLITE_BUSY && rc!=SQLITE_LOCKED ); if( rc!=SQLITE_OK ){ p->rc = rc; } } } |
︙ | ︙ | |||
57417 57418 57419 57420 57421 57422 57423 57424 57425 57426 57427 57428 57429 57430 57431 | ** routine is a no-op. ** ** SQLITE_OK is returned if the conversion is successful (or not required). ** SQLITE_NOMEM may be returned if a malloc() fails during conversion ** between formats. */ SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *pMem, int desiredEnc){ int rc; assert( (pMem->flags&MEM_RowSet)==0 ); assert( desiredEnc==SQLITE_UTF8 || desiredEnc==SQLITE_UTF16LE || desiredEnc==SQLITE_UTF16BE ); if( !(pMem->flags&MEM_Str) || pMem->enc==desiredEnc ){ return SQLITE_OK; } assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); | > > | 57572 57573 57574 57575 57576 57577 57578 57579 57580 57581 57582 57583 57584 57585 57586 57587 57588 | ** routine is a no-op. ** ** SQLITE_OK is returned if the conversion is successful (or not required). ** SQLITE_NOMEM may be returned if a malloc() fails during conversion ** between formats. */ SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *pMem, int desiredEnc){ #ifndef SQLITE_OMIT_UTF16 int rc; #endif assert( (pMem->flags&MEM_RowSet)==0 ); assert( desiredEnc==SQLITE_UTF8 || desiredEnc==SQLITE_UTF16LE || desiredEnc==SQLITE_UTF16BE ); if( !(pMem->flags&MEM_Str) || pMem->enc==desiredEnc ){ return SQLITE_OK; } assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); |
︙ | ︙ | |||
58562 58563 58564 58565 58566 58567 58568 | ************************************************************************* ** This file contains code used for creating, destroying, and populating ** a VDBE (or an "sqlite3_stmt" as it is known to the outside world.) Prior ** to version 2.8.7, all this code was combined into the vdbe.c source file. ** But that file was getting too big so this subroutines were split out. */ | < < < < < < < < < < < < | 58719 58720 58721 58722 58723 58724 58725 58726 58727 58728 58729 58730 58731 58732 | ************************************************************************* ** This file contains code used for creating, destroying, and populating ** a VDBE (or an "sqlite3_stmt" as it is known to the outside world.) Prior ** to version 2.8.7, all this code was combined into the vdbe.c source file. ** But that file was getting too big so this subroutines were split out. */ /* ** Create a new virtual database engine. */ SQLITE_PRIVATE Vdbe *sqlite3VdbeCreate(sqlite3 *db){ Vdbe *p; p = sqlite3DbMallocZero(db, sizeof(Vdbe) ); if( p==0 ) return 0; |
︙ | ︙ | |||
58703 58704 58705 58706 58707 58708 58709 | pOp->p1 = p1; pOp->p2 = p2; pOp->p3 = p3; pOp->p4.p = 0; pOp->p4type = P4_NOTUSED; #ifdef SQLITE_DEBUG pOp->zComment = 0; | > | > | 58848 58849 58850 58851 58852 58853 58854 58855 58856 58857 58858 58859 58860 58861 58862 58863 58864 | pOp->p1 = p1; pOp->p2 = p2; pOp->p3 = p3; pOp->p4.p = 0; pOp->p4type = P4_NOTUSED; #ifdef SQLITE_DEBUG pOp->zComment = 0; if( p->db->flags & SQLITE_VdbeAddopTrace ){ sqlite3VdbePrintOp(0, i, &p->aOp[i]); } #endif #ifdef VDBE_PROFILE pOp->cycles = 0; pOp->cnt = 0; #endif return i; } |
︙ | ︙ | |||
58922 58923 58924 58925 58926 58927 58928 | while( (pOp = opIterNext(&sIter))!=0 ){ int opcode = pOp->opcode; if( opcode==OP_Destroy || opcode==OP_VUpdate || opcode==OP_VRename #ifndef SQLITE_OMIT_FOREIGN_KEY || (opcode==OP_FkCounter && pOp->p1==0 && pOp->p2==1) #endif || ((opcode==OP_Halt || opcode==OP_HaltIfNull) | | | 59069 59070 59071 59072 59073 59074 59075 59076 59077 59078 59079 59080 59081 59082 59083 | while( (pOp = opIterNext(&sIter))!=0 ){ int opcode = pOp->opcode; if( opcode==OP_Destroy || opcode==OP_VUpdate || opcode==OP_VRename #ifndef SQLITE_OMIT_FOREIGN_KEY || (opcode==OP_FkCounter && pOp->p1==0 && pOp->p2==1) #endif || ((opcode==OP_Halt || opcode==OP_HaltIfNull) && ((pOp->p1&0xff)==SQLITE_CONSTRAINT && pOp->p2==OE_Abort)) ){ hasAbort = 1; break; } } sqlite3DbFree(v->db, sIter.apSub); |
︙ | ︙ | |||
59057 59058 59059 59060 59061 59062 59063 | } pOut->p3 = pIn->p3; pOut->p4type = P4_NOTUSED; pOut->p4.p = 0; pOut->p5 = 0; #ifdef SQLITE_DEBUG pOut->zComment = 0; | | | 59204 59205 59206 59207 59208 59209 59210 59211 59212 59213 59214 59215 59216 59217 59218 | } pOut->p3 = pIn->p3; pOut->p4type = P4_NOTUSED; pOut->p4.p = 0; pOut->p5 = 0; #ifdef SQLITE_DEBUG pOut->zComment = 0; if( p->db->flags & SQLITE_VdbeAddopTrace ){ sqlite3VdbePrintOp(0, i+addr, &p->aOp[i+addr]); } #endif } p->nOp += nOp; } return addr; |
︙ | ︙ | |||
60083 60084 60085 60086 60087 60088 60089 | if( nByte ){ p->pFree = sqlite3DbMallocZero(db, nByte); } zCsr = p->pFree; zEnd = &zCsr[nByte]; }while( nByte && !db->mallocFailed ); | | | 60230 60231 60232 60233 60234 60235 60236 60237 60238 60239 60240 60241 60242 60243 60244 | if( nByte ){ p->pFree = sqlite3DbMallocZero(db, nByte); } zCsr = p->pFree; zEnd = &zCsr[nByte]; }while( nByte && !db->mallocFailed ); p->nCursor = nCursor; p->nOnceFlag = nOnce; if( p->aVar ){ p->nVar = (ynVar)nVar; for(n=0; n<nVar; n++){ p->aVar[n].flags = MEM_Null; p->aVar[n].db = db; } |
︙ | ︙ | |||
60325 60326 60327 60328 60329 60330 60331 | return rc; } /* If there are any write-transactions at all, invoke the commit hook */ if( needXcommit && db->xCommitCallback ){ rc = db->xCommitCallback(db->pCommitArg); if( rc ){ | | | 60472 60473 60474 60475 60476 60477 60478 60479 60480 60481 60482 60483 60484 60485 60486 | return rc; } /* If there are any write-transactions at all, invoke the commit hook */ if( needXcommit && db->xCommitCallback ){ rc = db->xCommitCallback(db->pCommitArg); if( rc ){ return SQLITE_CONSTRAINT_COMMITHOOK; } } /* The simple case - no more than one database file (not counting the ** TEMP database) has a transaction active. There is no need for the ** master-journal. ** |
︙ | ︙ | |||
60617 60618 60619 60620 60621 60622 60623 | /* ** This function is called when a transaction opened by the database ** handle associated with the VM passed as an argument is about to be ** committed. If there are outstanding deferred foreign key constraint ** violations, return SQLITE_ERROR. Otherwise, SQLITE_OK. ** ** If there are outstanding FK violations and this function returns | | | | | 60764 60765 60766 60767 60768 60769 60770 60771 60772 60773 60774 60775 60776 60777 60778 60779 60780 60781 60782 60783 60784 60785 | /* ** This function is called when a transaction opened by the database ** handle associated with the VM passed as an argument is about to be ** committed. If there are outstanding deferred foreign key constraint ** violations, return SQLITE_ERROR. Otherwise, SQLITE_OK. ** ** If there are outstanding FK violations and this function returns ** SQLITE_ERROR, set the result of the VM to SQLITE_CONSTRAINT_FOREIGNKEY ** and write an error message to it. Then return SQLITE_ERROR. */ #ifndef SQLITE_OMIT_FOREIGN_KEY SQLITE_PRIVATE int sqlite3VdbeCheckFk(Vdbe *p, int deferred){ sqlite3 *db = p->db; if( (deferred && db->nDeferredCons>0) || (!deferred && p->nFkConstraint>0) ){ p->rc = SQLITE_CONSTRAINT_FOREIGNKEY; p->errorAction = OE_Abort; sqlite3SetString(&p->zErrMsg, db, "foreign key constraint failed"); return SQLITE_ERROR; } return SQLITE_OK; } #endif |
︙ | ︙ | |||
60739 60740 60741 60742 60743 60744 60745 | if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && !isSpecialError) ){ rc = sqlite3VdbeCheckFk(p, 1); if( rc!=SQLITE_OK ){ if( NEVER(p->readOnly) ){ sqlite3VdbeLeave(p); return SQLITE_ERROR; } | | | 60886 60887 60888 60889 60890 60891 60892 60893 60894 60895 60896 60897 60898 60899 60900 | if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && !isSpecialError) ){ rc = sqlite3VdbeCheckFk(p, 1); if( rc!=SQLITE_OK ){ if( NEVER(p->readOnly) ){ sqlite3VdbeLeave(p); return SQLITE_ERROR; } rc = SQLITE_CONSTRAINT_FOREIGNKEY; }else{ /* The auto-commit flag is true, the vdbe program was successful ** or hit an 'OR FAIL' constraint and there are no deferred foreign ** key constraints to hold up the transaction. This means a commit ** is required. */ rc = vdbeCommit(db, p); } |
︙ | ︙ | |||
60782 60783 60784 60785 60786 60787 60788 | ** do so. If this operation returns an error, and the current statement ** error code is SQLITE_OK or SQLITE_CONSTRAINT, then promote the ** current statement error code. */ if( eStatementOp ){ rc = sqlite3VdbeCloseStatement(p, eStatementOp); if( rc ){ | | | 60929 60930 60931 60932 60933 60934 60935 60936 60937 60938 60939 60940 60941 60942 60943 | ** do so. If this operation returns an error, and the current statement ** error code is SQLITE_OK or SQLITE_CONSTRAINT, then promote the ** current statement error code. */ if( eStatementOp ){ rc = sqlite3VdbeCloseStatement(p, eStatementOp); if( rc ){ if( p->rc==SQLITE_OK || (p->rc&0xff)==SQLITE_CONSTRAINT ){ p->rc = rc; sqlite3DbFree(db, p->zErrMsg); p->zErrMsg = 0; } sqlite3RollbackAll(db, SQLITE_ABORT_ROLLBACK); sqlite3CloseSavepoints(db); db->autoCommit = 1; |
︙ | ︙ | |||
61023 61024 61025 61026 61027 61028 61029 | for(i=p->nzVar-1; i>=0; i--) sqlite3DbFree(db, p->azVar[i]); vdbeFreeOpArray(db, p->aOp, p->nOp); sqlite3DbFree(db, p->aLabel); sqlite3DbFree(db, p->aColName); sqlite3DbFree(db, p->zSql); sqlite3DbFree(db, p->pFree); #if defined(SQLITE_ENABLE_TREE_EXPLAIN) | | | 61170 61171 61172 61173 61174 61175 61176 61177 61178 61179 61180 61181 61182 61183 61184 | for(i=p->nzVar-1; i>=0; i--) sqlite3DbFree(db, p->azVar[i]); vdbeFreeOpArray(db, p->aOp, p->nOp); sqlite3DbFree(db, p->aLabel); sqlite3DbFree(db, p->aColName); sqlite3DbFree(db, p->zSql); sqlite3DbFree(db, p->pFree); #if defined(SQLITE_ENABLE_TREE_EXPLAIN) sqlite3DbFree(db, p->zExplain); sqlite3DbFree(db, p->pExplain); #endif } /* ** Delete an entire VDBE. */ |
︙ | ︙ | |||
63005 63006 63007 63008 63009 63010 63011 | int i; if( p==0 ){ return 0; } if( zName ){ for(i=0; i<p->nzVar; i++){ const char *z = p->azVar[i]; | | | 63152 63153 63154 63155 63156 63157 63158 63159 63160 63161 63162 63163 63164 63165 63166 | int i; if( p==0 ){ return 0; } if( zName ){ for(i=0; i<p->nzVar; i++){ const char *z = p->azVar[i]; if( z && strncmp(z,zName,nName)==0 && z[nName]==0 ){ return i+1; } } } return 0; } SQLITE_API int sqlite3_bind_parameter_index(sqlite3_stmt *pStmt, const char *zName){ |
︙ | ︙ | |||
64779 64780 64781 64782 64783 64784 64785 | sqlite3_log(pOp->p1, "constraint failed at %d in [%s]", pc, p->zSql); } rc = sqlite3VdbeHalt(p); assert( rc==SQLITE_BUSY || rc==SQLITE_OK || rc==SQLITE_ERROR ); if( rc==SQLITE_BUSY ){ p->rc = rc = SQLITE_BUSY; }else{ | | | 64926 64927 64928 64929 64930 64931 64932 64933 64934 64935 64936 64937 64938 64939 64940 | sqlite3_log(pOp->p1, "constraint failed at %d in [%s]", pc, p->zSql); } rc = sqlite3VdbeHalt(p); assert( rc==SQLITE_BUSY || rc==SQLITE_OK || rc==SQLITE_ERROR ); if( rc==SQLITE_BUSY ){ p->rc = rc = SQLITE_BUSY; }else{ assert( rc==SQLITE_OK || (p->rc&0xff)==SQLITE_CONSTRAINT ); assert( rc==SQLITE_OK || db->nDeferredCons>0 ); rc = p->rc ? SQLITE_ERROR : SQLITE_DONE; } goto vdbe_return; } /* Opcode: Integer P1 P2 * * * |
︙ | ︙ | |||
70111 70112 70113 70114 70115 70116 70117 | rc = u.cr.pModule->xUpdate(u.cr.pVtab, u.cr.nArg, u.cr.apArg, &u.cr.rowid); db->vtabOnConflict = vtabOnConflict; importVtabErrMsg(p, u.cr.pVtab); if( rc==SQLITE_OK && pOp->p1 ){ assert( u.cr.nArg>1 && u.cr.apArg[0] && (u.cr.apArg[0]->flags&MEM_Null) ); db->lastRowid = lastRowid = u.cr.rowid; } | | | 70258 70259 70260 70261 70262 70263 70264 70265 70266 70267 70268 70269 70270 70271 70272 | rc = u.cr.pModule->xUpdate(u.cr.pVtab, u.cr.nArg, u.cr.apArg, &u.cr.rowid); db->vtabOnConflict = vtabOnConflict; importVtabErrMsg(p, u.cr.pVtab); if( rc==SQLITE_OK && pOp->p1 ){ assert( u.cr.nArg>1 && u.cr.apArg[0] && (u.cr.apArg[0]->flags&MEM_Null) ); db->lastRowid = lastRowid = u.cr.rowid; } if( (rc&0xff)==SQLITE_CONSTRAINT && pOp->p4.pVtab->bConstraint ){ if( pOp->p5==OE_Ignore ){ rc = SQLITE_OK; }else{ p->errorAction = ((pOp->p5==OE_Replace) ? OE_Abort : pOp->p5); } }else{ p->nChange++; |
︙ | ︙ | |||
71888 71889 71890 71891 71892 71893 71894 71895 71896 71897 71898 71899 71900 71901 | rc = sqlite3OsOpen(p->pVfs, p->zJournal, pReal, p->flags, 0); if( rc==SQLITE_OK ){ p->pReal = pReal; if( p->iSize>0 ){ assert(p->iSize<=p->nBuf); rc = sqlite3OsWrite(p->pReal, p->zBuf, p->iSize, 0); } } } return rc; } /* ** Close the file. | > > > > > > > > | 72035 72036 72037 72038 72039 72040 72041 72042 72043 72044 72045 72046 72047 72048 72049 72050 72051 72052 72053 72054 72055 72056 | rc = sqlite3OsOpen(p->pVfs, p->zJournal, pReal, p->flags, 0); if( rc==SQLITE_OK ){ p->pReal = pReal; if( p->iSize>0 ){ assert(p->iSize<=p->nBuf); rc = sqlite3OsWrite(p->pReal, p->zBuf, p->iSize, 0); } if( rc!=SQLITE_OK ){ /* If an error occurred while writing to the file, close it before ** returning. This way, SQLite uses the in-memory journal data to ** roll back changes made to the internal page-cache before this ** function was called. */ sqlite3OsClose(pReal); p->pReal = 0; } } } return rc; } /* ** Close the file. |
︙ | ︙ | |||
72634 72635 72636 72637 72638 72639 72640 72641 72642 72643 72644 72645 72646 72647 | for(k=0; k<pUsing->nId; k++){ if( sqlite3StrICmp(pUsing->a[k].zName, zCol)==0 ) return 1; } } return 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 ** expression node refer back to that source column. The following changes ** are made to pExpr: ** | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 72789 72790 72791 72792 72793 72794 72795 72796 72797 72798 72799 72800 72801 72802 72803 72804 72805 72806 72807 72808 72809 72810 72811 72812 72813 72814 72815 72816 72817 72818 72819 72820 72821 72822 72823 72824 72825 72826 72827 72828 72829 72830 72831 | for(k=0; k<pUsing->nId; k++){ if( sqlite3StrICmp(pUsing->a[k].zName, zCol)==0 ) return 1; } } return 0; } /* ** Subqueries stores the original database, table and column names for their ** result sets in ExprList.a[].zSpan, in the form "DATABASE.TABLE.COLUMN". ** Check to see if the zSpan given to this routine matches the zDb, zTab, ** and zCol. If any of zDb, zTab, and zCol are NULL then those fields will ** match anything. */ SQLITE_PRIVATE int sqlite3MatchSpanName( const char *zSpan, const char *zCol, const char *zTab, const char *zDb ){ int n; for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){} if( zDb && (sqlite3StrNICmp(zSpan, zDb, n)!=0 || zDb[n]!=0) ){ return 0; } zSpan += n+1; for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){} if( zTab && (sqlite3StrNICmp(zSpan, zTab, n)!=0 || zTab[n]!=0) ){ return 0; } zSpan += n+1; if( zCol && sqlite3StrICmp(zSpan, zCol)!=0 ){ return 0; } return 1; } /* ** 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 ** expression node refer back to that source column. The following changes ** are made to pExpr: ** |
︙ | ︙ | |||
72689 72690 72691 72692 72693 72694 72695 72696 72697 72698 72699 72700 72701 72702 72703 72704 | assert( zCol ); /* The Z in X.Y.Z cannot be NULL */ assert( !ExprHasAnyProperty(pExpr, EP_TokenOnly|EP_Reduced) ); /* Initialize the node to no-match */ pExpr->iTable = -1; pExpr->pTab = 0; ExprSetIrreducible(pExpr); /* Start at the inner-most context and move outward until a match is found */ while( pNC && cnt==0 ){ ExprList *pEList; SrcList *pSrcList = pNC->pSrcList; if( pSrcList ){ for(i=0, pItem=pSrcList->a; i<pSrcList->nSrc; i++, pItem++){ Table *pTab; | > > > > > > > > > > > > > > < < < | > | > | > > | > | < > > | | | | | > > > > > < < < < < < > > > > | > | 72873 72874 72875 72876 72877 72878 72879 72880 72881 72882 72883 72884 72885 72886 72887 72888 72889 72890 72891 72892 72893 72894 72895 72896 72897 72898 72899 72900 72901 72902 72903 72904 72905 72906 72907 72908 72909 72910 72911 72912 72913 72914 72915 72916 72917 72918 72919 72920 72921 72922 72923 72924 72925 72926 72927 72928 72929 72930 72931 72932 72933 72934 72935 72936 72937 72938 72939 72940 72941 72942 72943 72944 72945 72946 72947 72948 72949 72950 72951 72952 72953 72954 72955 72956 72957 72958 72959 72960 72961 72962 72963 72964 72965 | assert( zCol ); /* The Z in X.Y.Z cannot be NULL */ assert( !ExprHasAnyProperty(pExpr, EP_TokenOnly|EP_Reduced) ); /* Initialize the node to no-match */ pExpr->iTable = -1; pExpr->pTab = 0; ExprSetIrreducible(pExpr); /* Translate the schema name in zDb into a pointer to the corresponding ** schema. If not found, pSchema will remain NULL and nothing will match ** resulting in an appropriate error message toward the end of this routine */ if( zDb ){ for(i=0; i<db->nDb; i++){ assert( db->aDb[i].zName ); if( sqlite3StrICmp(db->aDb[i].zName,zDb)==0 ){ pSchema = db->aDb[i].pSchema; break; } } } /* Start at the inner-most context and move outward until a match is found */ while( pNC && cnt==0 ){ ExprList *pEList; SrcList *pSrcList = pNC->pSrcList; if( pSrcList ){ for(i=0, pItem=pSrcList->a; i<pSrcList->nSrc; i++, pItem++){ Table *pTab; Column *pCol; pTab = pItem->pTab; assert( pTab!=0 && pTab->zName!=0 ); assert( pTab->nCol>0 ); if( pItem->pSelect && (pItem->pSelect->selFlags & SF_NestedFrom)!=0 ){ int hit = 0; pEList = pItem->pSelect->pEList; for(j=0; j<pEList->nExpr; j++){ if( sqlite3MatchSpanName(pEList->a[j].zSpan, zCol, zTab, zDb) ){ cnt++; cntTab = 2; pMatch = pItem; pExpr->iColumn = j; hit = 1; } } if( hit || zTab==0 ) continue; } if( zDb && pTab->pSchema!=pSchema ){ continue; } if( zTab ){ const char *zTabName = pItem->zAlias ? pItem->zAlias : pTab->zName; assert( zTabName!=0 ); if( sqlite3StrICmp(zTabName, zTab)!=0 ){ continue; } } if( 0==(cntTab++) ){ pMatch = pItem; } for(j=0, pCol=pTab->aCol; j<pTab->nCol; j++, pCol++){ if( sqlite3StrICmp(pCol->zName, zCol)==0 ){ /* If there has been exactly one prior match and this match ** is for the right-hand table of a NATURAL JOIN or is in a ** USING clause, then skip this match. */ if( cnt==1 ){ if( pItem->jointype & JT_NATURAL ) continue; if( nameInUsingClause(pItem->pUsing, zCol) ) continue; } cnt++; pMatch = pItem; /* Substitute the rowid (column -1) for the INTEGER PRIMARY KEY */ pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j; break; } } } if( pMatch ){ pExpr->iTable = pMatch->iCursor; pExpr->pTab = pMatch->pTab; pSchema = pExpr->pTab->pSchema; } } /* if( pSrcList ) */ #ifndef SQLITE_OMIT_TRIGGER /* If we have not already resolved the name, then maybe ** it is a new.* or old.* trigger argument reference */ if( zDb==0 && zTab!=0 && cnt==0 && pParse->pTriggerTab!=0 ){ int op = pParse->eTriggerOp; |
︙ | ︙ | |||
73081 73082 73083 73084 73085 73086 73087 | } } #endif if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){ sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId); pNC->nErr++; is_agg = 0; | | | 73286 73287 73288 73289 73290 73291 73292 73293 73294 73295 73296 73297 73298 73299 73300 | } } #endif if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){ sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId); pNC->nErr++; is_agg = 0; }else if( no_such_func && pParse->db->init.busy==0 ){ sqlite3ErrorMsg(pParse, "no such function: %.*s", nId, zId); pNC->nErr++; }else if( wrong_num_args ){ sqlite3ErrorMsg(pParse,"wrong number of arguments to function %.*s()", nId, zId); pNC->nErr++; } |
︙ | ︙ | |||
73517 73518 73519 73520 73521 73522 73523 | memset(&sNC, 0, sizeof(sNC)); sNC.pParse = pParse; if( sqlite3ResolveExprNames(&sNC, p->pLimit) || sqlite3ResolveExprNames(&sNC, p->pOffset) ){ return WRC_Abort; } | < < < < < < < < < < < < < < < < < | 73722 73723 73724 73725 73726 73727 73728 73729 73730 73731 73732 73733 73734 73735 | memset(&sNC, 0, sizeof(sNC)); sNC.pParse = pParse; if( sqlite3ResolveExprNames(&sNC, p->pLimit) || sqlite3ResolveExprNames(&sNC, p->pOffset) ){ return WRC_Abort; } /* Recursively resolve names in all subqueries */ for(i=0; i<p->pSrc->nSrc; i++){ struct SrcList_item *pItem = &p->pSrc->a[i]; if( pItem->pSelect ){ NameContext *pNC; /* Used to iterate name contexts */ int nRef = 0; /* Refcount for pOuterNC and outer contexts */ |
︙ | ︙ | |||
73560 73561 73562 73563 73564 73565 73566 73567 73568 73569 73570 73571 73572 73573 | if( pParse->nErr || db->mallocFailed ) return WRC_Abort; for(pNC=pOuterNC; pNC; pNC=pNC->pNext) nRef -= pNC->nRef; assert( pItem->isCorrelated==0 && nRef<=0 ); pItem->isCorrelated = (nRef!=0); } } /* If there are no aggregate functions in the result-set, and no GROUP BY ** expression, do not allow aggregates in any of the other expressions. */ assert( (p->selFlags & SF_Aggregate)==0 ); pGroupBy = p->pGroupBy; if( pGroupBy || (sNC.ncFlags & NC_HasAgg)!=0 ){ | > > > > > > > > > > > > > > > > > | 73748 73749 73750 73751 73752 73753 73754 73755 73756 73757 73758 73759 73760 73761 73762 73763 73764 73765 73766 73767 73768 73769 73770 73771 73772 73773 73774 73775 73776 73777 73778 | if( pParse->nErr || db->mallocFailed ) return WRC_Abort; for(pNC=pOuterNC; pNC; pNC=pNC->pNext) nRef -= pNC->nRef; assert( pItem->isCorrelated==0 && nRef<=0 ); pItem->isCorrelated = (nRef!=0); } } /* Set up the local name-context to pass to sqlite3ResolveExprNames() to ** resolve the result-set expression list. */ sNC.ncFlags = NC_AllowAgg; sNC.pSrcList = p->pSrc; sNC.pNext = pOuterNC; /* Resolve names in the result set. */ pEList = p->pEList; assert( pEList!=0 ); for(i=0; i<pEList->nExpr; i++){ Expr *pX = pEList->a[i].pExpr; if( sqlite3ResolveExprNames(&sNC, pX) ){ return WRC_Abort; } } /* If there are no aggregate functions in the result-set, and no GROUP BY ** expression, do not allow aggregates in any of the other expressions. */ assert( (p->selFlags & SF_Aggregate)==0 ); pGroupBy = p->pGroupBy; if( pGroupBy || (sNC.ncFlags & NC_HasAgg)!=0 ){ |
︙ | ︙ | |||
74401 74402 74403 74404 74405 74406 74407 | }else{ /* Wildcards like ":aaa", "$aaa" or "@aaa". Reuse the same variable ** number as the prior appearance of the same name, or if the name ** has never appeared before, reuse the same variable number */ ynVar i; for(i=0; i<pParse->nzVar; i++){ | | | 74606 74607 74608 74609 74610 74611 74612 74613 74614 74615 74616 74617 74618 74619 74620 | }else{ /* Wildcards like ":aaa", "$aaa" or "@aaa". Reuse the same variable ** number as the prior appearance of the same name, or if the name ** has never appeared before, reuse the same variable number */ ynVar i; for(i=0; i<pParse->nzVar; i++){ if( pParse->azVar[i] && strcmp(pParse->azVar[i],z)==0 ){ pExpr->iColumn = x = (ynVar)i+1; break; } } if( x==0 ) x = pExpr->iColumn = (ynVar)(++pParse->nVar); } if( x>0 ){ |
︙ | ︙ | |||
76698 76699 76700 76701 76702 76703 76704 | sqlite3MayAbort(pParse); } assert( !ExprHasProperty(pExpr, EP_IntValue) ); if( pExpr->affinity==OE_Ignore ){ sqlite3VdbeAddOp4( v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0); }else{ | | > | 76903 76904 76905 76906 76907 76908 76909 76910 76911 76912 76913 76914 76915 76916 76917 76918 | sqlite3MayAbort(pParse); } assert( !ExprHasProperty(pExpr, EP_IntValue) ); if( pExpr->affinity==OE_Ignore ){ sqlite3VdbeAddOp4( v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0); }else{ sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_TRIGGER, pExpr->affinity, pExpr->u.zToken, 0); } break; } #endif } sqlite3ReleaseTempReg(pParse, regFree1); |
︙ | ︙ | |||
77044 77045 77046 77047 77048 77049 77050 77051 77052 77053 77054 77055 77056 77057 | }else{ sqlite3ExplainPush(pOut); for(i=0; i<pList->nExpr; i++){ sqlite3ExplainPrintf(pOut, "item[%d] = ", i); sqlite3ExplainPush(pOut); sqlite3ExplainExpr(pOut, pList->a[i].pExpr); sqlite3ExplainPop(pOut); if( i<pList->nExpr-1 ){ sqlite3ExplainNL(pOut); } } sqlite3ExplainPop(pOut); } } | > > > > > > | 77250 77251 77252 77253 77254 77255 77256 77257 77258 77259 77260 77261 77262 77263 77264 77265 77266 77267 77268 77269 | }else{ sqlite3ExplainPush(pOut); for(i=0; i<pList->nExpr; i++){ sqlite3ExplainPrintf(pOut, "item[%d] = ", i); sqlite3ExplainPush(pOut); sqlite3ExplainExpr(pOut, pList->a[i].pExpr); sqlite3ExplainPop(pOut); if( pList->a[i].zName ){ sqlite3ExplainPrintf(pOut, " AS %s", pList->a[i].zName); } if( pList->a[i].bSpanIsTab ){ sqlite3ExplainPrintf(pOut, " (%s)", pList->a[i].zSpan); } if( i<pList->nExpr-1 ){ sqlite3ExplainNL(pOut); } } sqlite3ExplainPop(pOut); } } |
︙ | ︙ | |||
79251 79252 79253 79254 79255 79256 79257 | if( v==0 || NEVER(pTab==0) ){ return; } if( pTab->tnum==0 ){ /* Do not gather statistics on views or virtual tables */ return; } | | | 79463 79464 79465 79466 79467 79468 79469 79470 79471 79472 79473 79474 79475 79476 79477 | if( v==0 || NEVER(pTab==0) ){ return; } if( pTab->tnum==0 ){ /* Do not gather statistics on views or virtual tables */ return; } if( sqlite3_strnicmp(pTab->zName, "sqlite_", 7)==0 ){ /* Do not gather statistics on system tables */ return; } assert( sqlite3BtreeHoldsAllMutexes(db) ); iDb = sqlite3SchemaToIndex(db, pTab->pSchema); assert( iDb>=0 ); assert( sqlite3SchemaMutexHeld(db, iDb, 0) ); |
︙ | ︙ | |||
79661 79662 79663 79664 79665 79666 79667 | v = v*10 + c - '0'; z++; } if( i==0 ) pTable->nRowEst = v; if( pIndex==0 ) break; pIndex->aiRowEst[i] = v; if( *z==' ' ) z++; | | | 79873 79874 79875 79876 79877 79878 79879 79880 79881 79882 79883 79884 79885 79886 79887 | v = v*10 + c - '0'; z++; } if( i==0 ) pTable->nRowEst = v; if( pIndex==0 ) break; pIndex->aiRowEst[i] = v; if( *z==' ' ) z++; if( strcmp(z, "unordered")==0 ){ pIndex->bUnordered = 1; break; } } return 0; } |
︙ | ︙ | |||
83163 83164 83165 83166 83167 83168 83169 | sqlite3VdbeJumpHere(v, addr1); addr1 = sqlite3VdbeAddOp2(v, OP_SorterSort, iSorter, 0); if( pIndex->onError!=OE_None ){ int j2 = sqlite3VdbeCurrentAddr(v) + 3; sqlite3VdbeAddOp2(v, OP_Goto, 0, j2); addr2 = sqlite3VdbeCurrentAddr(v); sqlite3VdbeAddOp3(v, OP_SorterCompare, iSorter, j2, regRecord); | | | | 83375 83376 83377 83378 83379 83380 83381 83382 83383 83384 83385 83386 83387 83388 83389 83390 | sqlite3VdbeJumpHere(v, addr1); addr1 = sqlite3VdbeAddOp2(v, OP_SorterSort, iSorter, 0); if( pIndex->onError!=OE_None ){ int j2 = sqlite3VdbeCurrentAddr(v) + 3; sqlite3VdbeAddOp2(v, OP_Goto, 0, j2); addr2 = sqlite3VdbeCurrentAddr(v); sqlite3VdbeAddOp3(v, OP_SorterCompare, iSorter, j2, regRecord); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_UNIQUE, OE_Abort, "indexed columns are not unique", P4_STATIC ); }else{ addr2 = sqlite3VdbeCurrentAddr(v); } sqlite3VdbeAddOp2(v, OP_SorterData, iSorter, regRecord); sqlite3VdbeAddOp3(v, OP_IdxInsert, iIdx, regRecord, 1); sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT); |
︙ | ︙ | |||
83190 83191 83192 83193 83194 83195 83196 | ** (made available to the compiler for reuse) using ** sqlite3ReleaseTempRange(). So in some ways having the OP_IsUnique ** opcode use the values stored within seems dangerous. However, since ** we can be sure that no other temp registers have been allocated ** since sqlite3ReleaseTempRange() was called, it is safe to do so. */ sqlite3VdbeAddOp4(v, OP_IsUnique, iIdx, j2, regRowid, pRegKey, P4_INT32); | | | | 83402 83403 83404 83405 83406 83407 83408 83409 83410 83411 83412 83413 83414 83415 83416 83417 | ** (made available to the compiler for reuse) using ** sqlite3ReleaseTempRange(). So in some ways having the OP_IsUnique ** opcode use the values stored within seems dangerous. However, since ** we can be sure that no other temp registers have been allocated ** since sqlite3ReleaseTempRange() was called, it is safe to do so. */ sqlite3VdbeAddOp4(v, OP_IsUnique, iIdx, j2, regRowid, pRegKey, P4_INT32); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_UNIQUE, "indexed columns are not unique", P4_STATIC); } sqlite3VdbeAddOp3(v, OP_IdxInsert, iIdx, regRecord, 0); sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT); #endif sqlite3ReleaseTempReg(pParse, regRecord); sqlite3VdbeAddOp2(v, OP_SorterNext, iSorter, addr2); sqlite3VdbeJumpHere(v, addr1); |
︙ | ︙ | |||
83310 83311 83312 83313 83314 83315 83316 | iDb = sqlite3SchemaToIndex(db, pTab->pSchema); } pDb = &db->aDb[iDb]; assert( pTab!=0 ); assert( pParse->nErr==0 ); if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 | | | 83522 83523 83524 83525 83526 83527 83528 83529 83530 83531 83532 83533 83534 83535 83536 | iDb = sqlite3SchemaToIndex(db, pTab->pSchema); } pDb = &db->aDb[iDb]; assert( pTab!=0 ); assert( pParse->nErr==0 ); if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 && sqlite3StrNICmp(&pTab->zName[7],"altertab_",9)!=0 ){ sqlite3ErrorMsg(pParse, "table %s may not be indexed", pTab->zName); goto exit_create_index; } #ifndef SQLITE_OMIT_VIEW if( pTab->pSelect ){ sqlite3ErrorMsg(pParse, "views may not be indexed"); goto exit_create_index; |
︙ | ︙ | |||
84408 84409 84410 84411 84412 84413 84414 | } /* ** Code an OP_Halt that causes the vdbe to return an SQLITE_CONSTRAINT ** error. The onError parameter determines which (if any) of the statement ** and/or current transaction is rolled back. */ | | > > > > > > > | | 84620 84621 84622 84623 84624 84625 84626 84627 84628 84629 84630 84631 84632 84633 84634 84635 84636 84637 84638 84639 84640 84641 84642 84643 84644 84645 84646 | } /* ** Code an OP_Halt that causes the vdbe to return an SQLITE_CONSTRAINT ** error. The onError parameter determines which (if any) of the statement ** and/or current transaction is rolled back. */ SQLITE_PRIVATE void sqlite3HaltConstraint( Parse *pParse, /* Parsing context */ int errCode, /* extended error code */ int onError, /* Constraint type */ char *p4, /* Error message */ int p4type /* P4_STATIC or P4_TRANSIENT */ ){ Vdbe *v = sqlite3GetVdbe(pParse); assert( (errCode&0xff)==SQLITE_CONSTRAINT ); if( onError==OE_Abort ){ sqlite3MayAbort(pParse); } sqlite3VdbeAddOp4(v, OP_Halt, errCode, onError, 0, p4, p4type); } /* ** Check to see if pIndex uses the collating sequence pColl. Return ** true if it does and false if it does not. */ #ifndef SQLITE_OMIT_REINDEX |
︙ | ︙ | |||
85158 85159 85160 85161 85162 85163 85164 | SQLITE_PRIVATE void sqlite3MaterializeView( Parse *pParse, /* Parsing context */ Table *pView, /* View definition */ Expr *pWhere, /* Optional WHERE clause to be added */ int iCur /* Cursor number for ephemerial table */ ){ SelectDest dest; | | > | < < < | | | > | | | | | | < < | > | | | | | | 85377 85378 85379 85380 85381 85382 85383 85384 85385 85386 85387 85388 85389 85390 85391 85392 85393 85394 85395 85396 85397 85398 85399 85400 85401 85402 85403 85404 85405 85406 85407 85408 85409 85410 85411 85412 | SQLITE_PRIVATE void sqlite3MaterializeView( Parse *pParse, /* Parsing context */ Table *pView, /* View definition */ Expr *pWhere, /* Optional WHERE clause to be added */ int iCur /* Cursor number for ephemerial table */ ){ SelectDest dest; Select *pSel; SrcList *pFrom; sqlite3 *db = pParse->db; int iDb = sqlite3SchemaToIndex(db, pView->pSchema); pWhere = sqlite3ExprDup(db, pWhere, 0); pFrom = sqlite3SrcListAppend(db, 0, 0, 0); if( pFrom ){ assert( pFrom->nSrc==1 ); pFrom->a[0].zName = sqlite3DbStrDup(db, pView->zName); pFrom->a[0].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zName); assert( pFrom->a[0].pOn==0 ); assert( pFrom->a[0].pUsing==0 ); } pSel = sqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, 0, 0, 0, 0); if( pSel ) pSel->selFlags |= SF_Materialize; sqlite3SelectDestInit(&dest, SRT_EphemTab, iCur); sqlite3Select(pParse, pSel, &dest); sqlite3SelectDelete(db, pSel); } #endif /* !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) */ #if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY) /* ** Generate an expression tree to implement the WHERE, ORDER BY, ** and LIMIT/OFFSET portion of DELETE and UPDATE statements. |
︙ | ︙ | |||
86681 86682 86683 86684 86685 86686 86687 86688 86689 86690 86691 86692 86693 86694 | default: { assert( sqlite3_value_type(argv[0])==SQLITE_NULL ); sqlite3_result_text(context, "NULL", 4, SQLITE_STATIC); break; } } } /* ** The hex() function. Interpret the argument as a blob. Return ** a hexadecimal rendering as text. */ static void hexFunc( sqlite3_context *context, | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 86898 86899 86900 86901 86902 86903 86904 86905 86906 86907 86908 86909 86910 86911 86912 86913 86914 86915 86916 86917 86918 86919 86920 86921 86922 86923 86924 86925 86926 86927 86928 86929 86930 86931 86932 86933 86934 86935 86936 86937 86938 86939 86940 86941 86942 86943 86944 86945 86946 86947 86948 86949 86950 86951 86952 86953 86954 86955 86956 86957 86958 86959 86960 86961 86962 86963 86964 86965 86966 86967 | default: { assert( sqlite3_value_type(argv[0])==SQLITE_NULL ); sqlite3_result_text(context, "NULL", 4, SQLITE_STATIC); break; } } } /* ** The unicode() function. Return the integer unicode code-point value ** for the first character of the input string. */ static void unicodeFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ const unsigned char *z = sqlite3_value_text(argv[0]); (void)argc; if( z && z[0] ) sqlite3_result_int(context, sqlite3Utf8Read(&z)); } /* ** The char() function takes zero or more arguments, each of which is ** an integer. It constructs a string where each character of the string ** is the unicode character for the corresponding integer argument. */ static void charFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ unsigned char *z, *zOut; int i; zOut = z = sqlite3_malloc( argc*4 ); if( z==0 ){ sqlite3_result_error_nomem(context); return; } for(i=0; i<argc; i++){ sqlite3_int64 x; unsigned c; x = sqlite3_value_int64(argv[i]); if( x<0 || x>0x10ffff ) x = 0xfffd; c = (unsigned)(x & 0x1fffff); if( c<0x00080 ){ *zOut++ = (u8)(c&0xFF); }else if( c<0x00800 ){ *zOut++ = 0xC0 + (u8)((c>>6)&0x1F); *zOut++ = 0x80 + (u8)(c & 0x3F); }else if( c<0x10000 ){ *zOut++ = 0xE0 + (u8)((c>>12)&0x0F); *zOut++ = 0x80 + (u8)((c>>6) & 0x3F); *zOut++ = 0x80 + (u8)(c & 0x3F); }else{ *zOut++ = 0xF0 + (u8)((c>>18) & 0x07); *zOut++ = 0x80 + (u8)((c>>12) & 0x3F); *zOut++ = 0x80 + (u8)((c>>6) & 0x3F); *zOut++ = 0x80 + (u8)(c & 0x3F); } \ } sqlite3_result_text(context, (char*)z, (int)(zOut-z), sqlite3_free); } /* ** The hex() function. Interpret the argument as a blob. Return ** a hexadecimal rendering as text. */ static void hexFunc( sqlite3_context *context, |
︙ | ︙ | |||
87309 87310 87311 87312 87313 87314 87315 87316 87317 87318 87319 87320 87321 87322 | FUNCTION(max, 0, 1, 1, 0 ), AGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize ), FUNCTION2(typeof, 1, 0, 0, typeofFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(length, 1, 0, 0, lengthFunc, SQLITE_FUNC_LENGTH), FUNCTION(instr, 2, 0, 0, instrFunc ), FUNCTION(substr, 2, 0, 0, substrFunc ), FUNCTION(substr, 3, 0, 0, substrFunc ), FUNCTION(abs, 1, 0, 0, absFunc ), #ifndef SQLITE_OMIT_FLOATING_POINT FUNCTION(round, 1, 0, 0, roundFunc ), FUNCTION(round, 2, 0, 0, roundFunc ), #endif FUNCTION(upper, 1, 0, 0, upperFunc ), FUNCTION(lower, 1, 0, 0, lowerFunc ), | > > | 87582 87583 87584 87585 87586 87587 87588 87589 87590 87591 87592 87593 87594 87595 87596 87597 | FUNCTION(max, 0, 1, 1, 0 ), AGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize ), FUNCTION2(typeof, 1, 0, 0, typeofFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(length, 1, 0, 0, lengthFunc, SQLITE_FUNC_LENGTH), FUNCTION(instr, 2, 0, 0, instrFunc ), FUNCTION(substr, 2, 0, 0, substrFunc ), FUNCTION(substr, 3, 0, 0, substrFunc ), FUNCTION(unicode, 1, 0, 0, unicodeFunc ), FUNCTION(char, -1, 0, 0, charFunc ), FUNCTION(abs, 1, 0, 0, absFunc ), #ifndef SQLITE_OMIT_FLOATING_POINT FUNCTION(round, 1, 0, 0, roundFunc ), FUNCTION(round, 2, 0, 0, roundFunc ), #endif FUNCTION(upper, 1, 0, 0, upperFunc ), FUNCTION(lower, 1, 0, 0, lowerFunc ), |
︙ | ︙ | |||
87400 87401 87402 87403 87404 87405 87406 | #ifndef SQLITE_OMIT_TRIGGER /* ** Deferred and Immediate FKs ** -------------------------- ** ** Foreign keys in SQLite come in two flavours: deferred and immediate. | | > | | 87675 87676 87677 87678 87679 87680 87681 87682 87683 87684 87685 87686 87687 87688 87689 87690 87691 | #ifndef SQLITE_OMIT_TRIGGER /* ** Deferred and Immediate FKs ** -------------------------- ** ** Foreign keys in SQLite come in two flavours: deferred and immediate. ** If an immediate foreign key constraint is violated, ** SQLITE_CONSTRAINT_FOREIGNKEY is returned and the current ** statement transaction rolled back. If a ** deferred foreign key constraint is violated, no action is taken ** immediately. However if the application attempts to commit the ** transaction before fixing the constraint violation, the attempt fails. ** ** Deferred constraints are implemented using a simple counter associated ** with the database handle. The counter is set to zero each time a ** database transaction is opened. Each time a statement is executed |
︙ | ︙ | |||
87465 87466 87467 87468 87469 87470 87471 | ** If a delete caused by OR REPLACE violates an FK constraint, an exception ** is thrown, even if the FK constraint would be satisfied after the new ** row is inserted. ** ** Immediate constraints are usually handled similarly. The only difference ** is that the counter used is stored as part of each individual statement ** object (struct Vdbe). If, after the statement has run, its immediate | | > | 87741 87742 87743 87744 87745 87746 87747 87748 87749 87750 87751 87752 87753 87754 87755 87756 | ** If a delete caused by OR REPLACE violates an FK constraint, an exception ** is thrown, even if the FK constraint would be satisfied after the new ** row is inserted. ** ** Immediate constraints are usually handled similarly. The only difference ** is that the counter used is stored as part of each individual statement ** object (struct Vdbe). If, after the statement has run, its immediate ** constraint counter is greater than zero, ** it returns SQLITE_CONSTRAINT_FOREIGNKEY ** and the statement transaction is rolled back. An exception is an INSERT ** statement that inserts a single row only (no triggers). In this case, ** instead of using a counter, an exception is thrown immediately if the ** INSERT violates a foreign key constraint. This is necessary as such ** an INSERT does not open a statement transaction. ** ** TODO: How should dropping a table be handled? How should renaming a |
︙ | ︙ | |||
87521 87522 87523 87524 87525 87526 87527 | ** Register (x+3): 3.1 (type real) */ /* ** A foreign key constraint requires that the key columns in the parent ** table are collectively subject to a UNIQUE or PRIMARY KEY constraint. ** Given that pParent is the parent table for foreign key constraint pFKey, | | | 87798 87799 87800 87801 87802 87803 87804 87805 87806 87807 87808 87809 87810 87811 87812 | ** Register (x+3): 3.1 (type real) */ /* ** A foreign key constraint requires that the key columns in the parent ** table are collectively subject to a UNIQUE or PRIMARY KEY constraint. ** Given that pParent is the parent table for foreign key constraint pFKey, ** search the schema for a unique index on the parent key columns. ** ** If successful, zero is returned. If the parent key is an INTEGER PRIMARY ** KEY column, then output variable *ppIdx is set to NULL. Otherwise, *ppIdx ** is set to point to the unique index. ** ** If the parent key consists of a single column (the foreign key constraint ** is not a composite foreign key), output variable *paiCol is set to NULL. |
︙ | ︙ | |||
87557 87558 87559 87560 87561 87562 87563 | ** consists of a a different number of columns to the child key in ** the child table. ** ** then non-zero is returned, and a "foreign key mismatch" error loaded ** into pParse. If an OOM error occurs, non-zero is returned and the ** pParse->db->mallocFailed flag is set. */ | | | 87834 87835 87836 87837 87838 87839 87840 87841 87842 87843 87844 87845 87846 87847 87848 | ** consists of a a different number of columns to the child key in ** the child table. ** ** then non-zero is returned, and a "foreign key mismatch" error loaded ** into pParse. If an OOM error occurs, non-zero is returned and the ** pParse->db->mallocFailed flag is set. */ SQLITE_PRIVATE int sqlite3FkLocateIndex( Parse *pParse, /* Parse context to store any error in */ Table *pParent, /* Parent table of FK constraint pFKey */ FKey *pFKey, /* Foreign key to find index for */ Index **ppIdx, /* OUT: Unique index on parent table */ int **paiCol /* OUT: Map of index columns in pFKey */ ){ Index *pIdx = 0; /* Value to return via *ppIdx */ |
︙ | ︙ | |||
87654 87655 87656 87657 87658 87659 87660 | if( i==nCol ) break; /* pIdx is usable */ } } } if( !pIdx ){ if( !pParse->disableTriggers ){ | | > > | 87931 87932 87933 87934 87935 87936 87937 87938 87939 87940 87941 87942 87943 87944 87945 87946 87947 | if( i==nCol ) break; /* pIdx is usable */ } } } if( !pIdx ){ if( !pParse->disableTriggers ){ sqlite3ErrorMsg(pParse, "foreign key mismatch - \"%w\" referencing \"%w\"", pFKey->pFrom->zName, pFKey->zTo); } sqlite3DbFree(pParse->db, aiCol); return 1; } *ppIdx = pIdx; return 0; |
︙ | ︙ | |||
87803 87804 87805 87806 87807 87808 87809 | if( !pFKey->isDeferred && !pParse->pToplevel && !pParse->isMultiWrite ){ /* Special case: If this is an INSERT statement that will insert exactly ** one row into the table, raise a constraint immediately instead of ** incrementing a counter. This is necessary as the VM code is being ** generated for will not open a statement transaction. */ assert( nIncr==1 ); | | | | 88082 88083 88084 88085 88086 88087 88088 88089 88090 88091 88092 88093 88094 88095 88096 88097 | if( !pFKey->isDeferred && !pParse->pToplevel && !pParse->isMultiWrite ){ /* Special case: If this is an INSERT statement that will insert exactly ** one row into the table, raise a constraint immediately instead of ** incrementing a counter. This is necessary as the VM code is being ** generated for will not open a statement transaction. */ assert( nIncr==1 ); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_FOREIGNKEY, OE_Abort, "foreign key constraint failed", P4_STATIC ); }else{ if( nIncr>0 && pFKey->isDeferred==0 ){ sqlite3ParseToplevel(pParse)->mayAbort = 1; } sqlite3VdbeAddOp2(v, OP_FkCounter, pFKey->isDeferred, nIncr); } |
︙ | ︙ | |||
88044 88045 88046 88047 88048 88049 88050 | pParse->disableTriggers = 0; /* If the DELETE has generated immediate foreign key constraint ** violations, halt the VDBE and return an error at this point, before ** any modifications to the schema are made. This is because statement ** transactions are not able to rollback schema changes. */ sqlite3VdbeAddOp2(v, OP_FkIfZero, 0, sqlite3VdbeCurrentAddr(v)+2); | | | | 88323 88324 88325 88326 88327 88328 88329 88330 88331 88332 88333 88334 88335 88336 88337 88338 | pParse->disableTriggers = 0; /* If the DELETE has generated immediate foreign key constraint ** violations, halt the VDBE and return an error at this point, before ** any modifications to the schema are made. This is because statement ** transactions are not able to rollback schema changes. */ sqlite3VdbeAddOp2(v, OP_FkIfZero, 0, sqlite3VdbeCurrentAddr(v)+2); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_FOREIGNKEY, OE_Abort, "foreign key constraint failed", P4_STATIC ); if( iSkip ){ sqlite3VdbeResolveLabel(v, iSkip); } } } |
︙ | ︙ | |||
88115 88116 88117 88118 88119 88120 88121 | ** schema items cannot be located, set an error in pParse and return ** early. */ if( pParse->disableTriggers ){ pTo = sqlite3FindTable(db, pFKey->zTo, zDb); }else{ pTo = sqlite3LocateTable(pParse, 0, pFKey->zTo, zDb); } | | | 88394 88395 88396 88397 88398 88399 88400 88401 88402 88403 88404 88405 88406 88407 88408 | ** schema items cannot be located, set an error in pParse and return ** early. */ if( pParse->disableTriggers ){ pTo = sqlite3FindTable(db, pFKey->zTo, zDb); }else{ pTo = sqlite3LocateTable(pParse, 0, pFKey->zTo, zDb); } if( !pTo || sqlite3FkLocateIndex(pParse, pTo, pFKey, &pIdx, &aiFree) ){ assert( isIgnoreErrors==0 || (regOld!=0 && regNew==0) ); if( !isIgnoreErrors || db->mallocFailed ) return; if( pTo==0 ){ /* If isIgnoreErrors is true, then a table is being dropped. In this ** case SQLite runs a "DELETE FROM xxx" on the table being dropped ** before actually dropping it in order to check FK constraints. ** If the parent table of an FK constraint on the current table is |
︙ | ︙ | |||
88195 88196 88197 88198 88199 88200 88201 | if( !pFKey->isDeferred && !pParse->pToplevel && !pParse->isMultiWrite ){ assert( regOld==0 && regNew!=0 ); /* Inserting a single row into a parent table cannot cause an immediate ** foreign key violation. So do nothing in this case. */ continue; } | | | 88474 88475 88476 88477 88478 88479 88480 88481 88482 88483 88484 88485 88486 88487 88488 | if( !pFKey->isDeferred && !pParse->pToplevel && !pParse->isMultiWrite ){ assert( regOld==0 && regNew!=0 ); /* Inserting a single row into a parent table cannot cause an immediate ** foreign key violation. So do nothing in this case. */ continue; } if( sqlite3FkLocateIndex(pParse, pTab, pFKey, &pIdx, &aiCol) ){ if( !isIgnoreErrors || db->mallocFailed ) return; continue; } assert( aiCol || pFKey->nCol==1 ); /* Create a SrcList structure containing a single table (the table ** the foreign key that refers to this table is attached to). This |
︙ | ︙ | |||
88250 88251 88252 88253 88254 88255 88256 | FKey *p; int i; for(p=pTab->pFKey; p; p=p->pNextFrom){ for(i=0; i<p->nCol; i++) mask |= COLUMN_MASK(p->aCol[i].iFrom); } for(p=sqlite3FkReferences(pTab); p; p=p->pNextTo){ Index *pIdx = 0; | | | 88529 88530 88531 88532 88533 88534 88535 88536 88537 88538 88539 88540 88541 88542 88543 | FKey *p; int i; for(p=pTab->pFKey; p; p=p->pNextFrom){ for(i=0; i<p->nCol; i++) mask |= COLUMN_MASK(p->aCol[i].iFrom); } for(p=sqlite3FkReferences(pTab); p; p=p->pNextTo){ Index *pIdx = 0; sqlite3FkLocateIndex(pParse, pTab, p, &pIdx, 0); if( pIdx ){ for(i=0; i<pIdx->nColumn; i++) mask |= COLUMN_MASK(pIdx->aiColumn[i]); } } } return mask; } |
︙ | ︙ | |||
88376 88377 88378 88379 88380 88381 88382 | TriggerStep *pStep = 0; /* First (only) step of trigger program */ Expr *pWhere = 0; /* WHERE clause of trigger step */ ExprList *pList = 0; /* Changes list if ON UPDATE CASCADE */ Select *pSelect = 0; /* If RESTRICT, "SELECT RAISE(...)" */ int i; /* Iterator variable */ Expr *pWhen = 0; /* WHEN clause for the trigger */ | | | 88655 88656 88657 88658 88659 88660 88661 88662 88663 88664 88665 88666 88667 88668 88669 | TriggerStep *pStep = 0; /* First (only) step of trigger program */ Expr *pWhere = 0; /* WHERE clause of trigger step */ ExprList *pList = 0; /* Changes list if ON UPDATE CASCADE */ Select *pSelect = 0; /* If RESTRICT, "SELECT RAISE(...)" */ int i; /* Iterator variable */ Expr *pWhen = 0; /* WHEN clause for the trigger */ if( sqlite3FkLocateIndex(pParse, pTab, pFKey, &pIdx, &aiCol) ) return 0; assert( aiCol || pFKey->nCol==1 ); for(i=0; i<pFKey->nCol; i++){ Token tOld = { "old", 3 }; /* Literal "old" token */ Token tNew = { "new", 3 }; /* Literal "new" token */ Token tFromCol; /* Name of column in child table */ Token tToCol; /* Name of column in parent table */ |
︙ | ︙ | |||
89849 89850 89851 89852 89853 89854 89855 | switch( onError ){ case OE_Abort: sqlite3MayAbort(pParse); case OE_Rollback: case OE_Fail: { char *zMsg; sqlite3VdbeAddOp3(v, OP_HaltIfNull, | | | 90128 90129 90130 90131 90132 90133 90134 90135 90136 90137 90138 90139 90140 90141 90142 | switch( onError ){ case OE_Abort: sqlite3MayAbort(pParse); case OE_Rollback: case OE_Fail: { char *zMsg; sqlite3VdbeAddOp3(v, OP_HaltIfNull, SQLITE_CONSTRAINT_NOTNULL, onError, regData+i); zMsg = sqlite3MPrintf(db, "%s.%s may not be NULL", pTab->zName, pTab->aCol[i].zName); sqlite3VdbeChangeP4(v, -1, zMsg, P4_DYNAMIC); break; } case OE_Ignore: { sqlite3VdbeAddOp2(v, OP_IsNull, regData+i, ignoreDest); |
︙ | ︙ | |||
89889 89890 89891 89892 89893 89894 89895 | char *zConsName = pCheck->a[i].zName; if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */ if( zConsName ){ zConsName = sqlite3MPrintf(db, "constraint %s failed", zConsName); }else{ zConsName = 0; } | | > | 90168 90169 90170 90171 90172 90173 90174 90175 90176 90177 90178 90179 90180 90181 90182 90183 | char *zConsName = pCheck->a[i].zName; if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */ if( zConsName ){ zConsName = sqlite3MPrintf(db, "constraint %s failed", zConsName); }else{ zConsName = 0; } sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_CHECK, onError, zConsName, P4_DYNAMIC); } sqlite3VdbeResolveLabel(v, allOk); } } #endif /* !defined(SQLITE_OMIT_CHECK) */ /* If we have an INTEGER PRIMARY KEY, make sure the primary key |
︙ | ︙ | |||
89920 89921 89922 89923 89924 89925 89926 | default: { onError = OE_Abort; /* Fall thru into the next case */ } case OE_Rollback: case OE_Abort: case OE_Fail: { | | | | 90200 90201 90202 90203 90204 90205 90206 90207 90208 90209 90210 90211 90212 90213 90214 90215 | default: { onError = OE_Abort; /* Fall thru into the next case */ } case OE_Rollback: case OE_Abort: case OE_Fail: { sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_PRIMARYKEY, onError, "PRIMARY KEY must be unique", P4_STATIC); break; } case OE_Replace: { /* If there are DELETE triggers on this table and the ** recursive-triggers flag is set, call GenerateRowDelete() to ** remove the conflicting row from the table. This will fire ** the triggers and remove both the table and index b-tree entries. |
︙ | ︙ | |||
90048 90049 90050 90051 90052 90053 90054 | sqlite3StrAccumAppend(&errMsg, zSep, -1); zSep = ", "; sqlite3StrAccumAppend(&errMsg, zCol, -1); } sqlite3StrAccumAppend(&errMsg, pIdx->nColumn>1 ? " are not unique" : " is not unique", -1); zErr = sqlite3StrAccumFinish(&errMsg); | | > | 90328 90329 90330 90331 90332 90333 90334 90335 90336 90337 90338 90339 90340 90341 90342 90343 | sqlite3StrAccumAppend(&errMsg, zSep, -1); zSep = ", "; sqlite3StrAccumAppend(&errMsg, zCol, -1); } sqlite3StrAccumAppend(&errMsg, pIdx->nColumn>1 ? " are not unique" : " is not unique", -1); zErr = sqlite3StrAccumFinish(&errMsg); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_UNIQUE, onError, zErr, 0); sqlite3DbFree(errMsg.db, zErr); break; } case OE_Ignore: { assert( seenReplace==0 ); sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest); break; |
︙ | ︙ | |||
90456 90457 90458 90459 90460 90461 90462 | sqlite3OpenTable(pParse, iSrc, iDbSrc, pSrc, OP_OpenRead); emptySrcTest = sqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); regData = sqlite3GetTempReg(pParse); regRowid = sqlite3GetTempReg(pParse); if( pDest->iPKey>=0 ){ addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid); addr2 = sqlite3VdbeAddOp3(v, OP_NotExists, iDest, 0, regRowid); | | | | 90737 90738 90739 90740 90741 90742 90743 90744 90745 90746 90747 90748 90749 90750 90751 90752 | sqlite3OpenTable(pParse, iSrc, iDbSrc, pSrc, OP_OpenRead); emptySrcTest = sqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); regData = sqlite3GetTempReg(pParse); regRowid = sqlite3GetTempReg(pParse); if( pDest->iPKey>=0 ){ addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid); addr2 = sqlite3VdbeAddOp3(v, OP_NotExists, iDest, 0, regRowid); sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_PRIMARYKEY, onError, "PRIMARY KEY must be unique", P4_STATIC); sqlite3VdbeJumpHere(v, addr2); autoIncStep(pParse, regAutoinc, regRowid); }else if( pDest->pIndex==0 ){ addr1 = sqlite3VdbeAddOp2(v, OP_NewRowid, iDest, regRowid); }else{ addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid); assert( (pDest->tabFlags & TF_Autoincrement)==0 ); |
︙ | ︙ | |||
90914 90915 90916 90917 90918 90919 90920 90921 90922 90923 90924 90925 90926 90927 | int (*unlock_notify)(sqlite3*,void(*)(void**,int),void*); int (*wal_autocheckpoint)(sqlite3*,int); int (*wal_checkpoint)(sqlite3*,const char*); void *(*wal_hook)(sqlite3*,int(*)(void*,sqlite3*,const char*,int),void*); int (*blob_reopen)(sqlite3_blob*,sqlite3_int64); int (*vtab_config)(sqlite3*,int op,...); int (*vtab_on_conflict)(sqlite3*); }; /* ** The following macros redefine the API routines so that they are ** redirected throught the global sqlite3_api structure. ** ** This header file is also used by the loadext.c source file | > > > > > > > > > > > > > > | 91195 91196 91197 91198 91199 91200 91201 91202 91203 91204 91205 91206 91207 91208 91209 91210 91211 91212 91213 91214 91215 91216 91217 91218 91219 91220 91221 91222 | int (*unlock_notify)(sqlite3*,void(*)(void**,int),void*); int (*wal_autocheckpoint)(sqlite3*,int); int (*wal_checkpoint)(sqlite3*,const char*); void *(*wal_hook)(sqlite3*,int(*)(void*,sqlite3*,const char*,int),void*); int (*blob_reopen)(sqlite3_blob*,sqlite3_int64); int (*vtab_config)(sqlite3*,int op,...); int (*vtab_on_conflict)(sqlite3*); /* Version 3.7.16 and later */ int (*close_v2)(sqlite3*); const char *(*db_filename)(sqlite3*,const char*); int (*db_readonly)(sqlite3*,const char*); int (*db_release_memory)(sqlite3*); const char *(*errstr)(int); int (*stmt_busy)(sqlite3_stmt*); int (*stmt_readonly)(sqlite3_stmt*); int (*stricmp)(const char*,const char*); int (*uri_boolean)(const char*,const char*,int); sqlite3_int64 (*uri_int64)(const char*,const char*,sqlite3_int64); const char *(*uri_parameter)(const char*,const char*); char *(*vsnprintf)(int,char*,const char*,va_list); int (*wal_checkpoint_v2)(sqlite3*,const char*,int,int*,int*); }; /* ** The following macros redefine the API routines so that they are ** redirected throught the global sqlite3_api structure. ** ** This header file is also used by the loadext.c source file |
︙ | ︙ | |||
91117 91118 91119 91120 91121 91122 91123 91124 91125 91126 91127 91128 91129 91130 | #define sqlite3_unlock_notify sqlite3_api->unlock_notify #define sqlite3_wal_autocheckpoint sqlite3_api->wal_autocheckpoint #define sqlite3_wal_checkpoint sqlite3_api->wal_checkpoint #define sqlite3_wal_hook sqlite3_api->wal_hook #define sqlite3_blob_reopen sqlite3_api->blob_reopen #define sqlite3_vtab_config sqlite3_api->vtab_config #define sqlite3_vtab_on_conflict sqlite3_api->vtab_on_conflict #endif /* SQLITE_CORE */ #define SQLITE_EXTENSION_INIT1 const sqlite3_api_routines *sqlite3_api = 0; #define SQLITE_EXTENSION_INIT2(v) sqlite3_api = v; #endif /* _SQLITE3EXT_H_ */ | > > > > > > > > > > > > > > | 91412 91413 91414 91415 91416 91417 91418 91419 91420 91421 91422 91423 91424 91425 91426 91427 91428 91429 91430 91431 91432 91433 91434 91435 91436 91437 91438 91439 | #define sqlite3_unlock_notify sqlite3_api->unlock_notify #define sqlite3_wal_autocheckpoint sqlite3_api->wal_autocheckpoint #define sqlite3_wal_checkpoint sqlite3_api->wal_checkpoint #define sqlite3_wal_hook sqlite3_api->wal_hook #define sqlite3_blob_reopen sqlite3_api->blob_reopen #define sqlite3_vtab_config sqlite3_api->vtab_config #define sqlite3_vtab_on_conflict sqlite3_api->vtab_on_conflict /* Version 3.7.16 and later */ #define sqlite3_close_v2 sqlite3_api->close_v2 #define sqlite3_db_filename sqlite3_api->db_filename #define sqlite3_db_readonly sqlite3_api->db_readonly #define sqlite3_db_release_memory sqlite3_api->db_release_memory #define sqlite3_errstr sqlite3_api->errstr #define sqlite3_stmt_busy sqlite3_api->stmt_busy #define sqlite3_stmt_readonly sqlite3_api->stmt_readonly #define sqlite3_stricmp sqlite3_api->stricmp #define sqlite3_uri_boolean sqlite3_api->uri_boolean #define sqlite3_uri_int64 sqlite3_api->uri_int64 #define sqlite3_uri_parameter sqlite3_api->uri_parameter #define sqlite3_uri_vsnprintf sqlite3_api->vsnprintf #define sqlite3_wal_checkpoint_v2 sqlite3_api->wal_checkpoint_v2 #endif /* SQLITE_CORE */ #define SQLITE_EXTENSION_INIT1 const sqlite3_api_routines *sqlite3_api = 0; #define SQLITE_EXTENSION_INIT2(v) sqlite3_api = v; #endif /* _SQLITE3EXT_H_ */ |
︙ | ︙ | |||
91486 91487 91488 91489 91490 91491 91492 91493 91494 91495 91496 91497 91498 91499 | 0, 0, 0, #endif sqlite3_blob_reopen, sqlite3_vtab_config, sqlite3_vtab_on_conflict, }; /* ** Attempt to load an SQLite extension library contained in the file ** zFile. The entry point is zProc. zProc may be 0 in which case a ** default entry point name (sqlite3_extension_init) is used. Use ** of the default name is recommended. | > > > > > > > > > > > > > | 91795 91796 91797 91798 91799 91800 91801 91802 91803 91804 91805 91806 91807 91808 91809 91810 91811 91812 91813 91814 91815 91816 91817 91818 91819 91820 91821 | 0, 0, 0, #endif sqlite3_blob_reopen, sqlite3_vtab_config, sqlite3_vtab_on_conflict, sqlite3_close_v2, sqlite3_db_filename, sqlite3_db_readonly, sqlite3_db_release_memory, sqlite3_errstr, sqlite3_stmt_busy, sqlite3_stmt_readonly, sqlite3_stricmp, sqlite3_uri_boolean, sqlite3_uri_int64, sqlite3_uri_parameter, sqlite3_vsnprintf, sqlite3_wal_checkpoint_v2 }; /* ** Attempt to load an SQLite extension library contained in the file ** zFile. The entry point is zProc. zProc may be 0 in which case a ** default entry point name (sqlite3_extension_init) is used. Use ** of the default name is recommended. |
︙ | ︙ | |||
91952 91953 91954 91955 91956 91957 91958 91959 91960 91961 91962 91963 91964 91965 | #ifndef SQLITE_OMIT_AUTOMATIC_INDEX { "automatic_index", SQLITE_AutoIndex }, #endif #ifdef SQLITE_DEBUG { "sql_trace", SQLITE_SqlTrace }, { "vdbe_listing", SQLITE_VdbeListing }, { "vdbe_trace", SQLITE_VdbeTrace }, #endif #ifndef SQLITE_OMIT_CHECK { "ignore_check_constraints", SQLITE_IgnoreChecks }, #endif /* The following is VERY experimental */ { "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode }, | > > > | 92274 92275 92276 92277 92278 92279 92280 92281 92282 92283 92284 92285 92286 92287 92288 92289 92290 | #ifndef SQLITE_OMIT_AUTOMATIC_INDEX { "automatic_index", SQLITE_AutoIndex }, #endif #ifdef SQLITE_DEBUG { "sql_trace", SQLITE_SqlTrace }, { "vdbe_listing", SQLITE_VdbeListing }, { "vdbe_trace", SQLITE_VdbeTrace }, { "vdbe_addoptrace", SQLITE_VdbeAddopTrace}, { "vdbe_debug", SQLITE_SqlTrace | SQLITE_VdbeListing | SQLITE_VdbeTrace }, #endif #ifndef SQLITE_OMIT_CHECK { "ignore_check_constraints", SQLITE_IgnoreChecks }, #endif /* The following is VERY experimental */ { "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode }, |
︙ | ︙ | |||
92716 92717 92718 92719 92720 92721 92722 | ** dflt_value: The default value for the column, if any. */ if( sqlite3StrICmp(zLeft, "table_info")==0 && zRight ){ Table *pTab; if( sqlite3ReadSchema(pParse) ) goto pragma_out; pTab = sqlite3FindTable(db, zRight, zDb); if( pTab ){ | | > > > | 93041 93042 93043 93044 93045 93046 93047 93048 93049 93050 93051 93052 93053 93054 93055 93056 93057 93058 93059 93060 93061 93062 | ** dflt_value: The default value for the column, if any. */ if( sqlite3StrICmp(zLeft, "table_info")==0 && zRight ){ Table *pTab; if( sqlite3ReadSchema(pParse) ) goto pragma_out; pTab = sqlite3FindTable(db, zRight, zDb); if( pTab ){ int i, k; int nHidden = 0; Column *pCol; Index *pPk; for(pPk=pTab->pIndex; pPk && pPk->autoIndex!=2; pPk=pPk->pNext){} sqlite3VdbeSetNumCols(v, 6); pParse->nMem = 6; sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "type", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "notnull", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "dflt_value", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "pk", SQLITE_STATIC); sqlite3ViewGetColumnNames(pParse, pTab); |
︙ | ︙ | |||
92743 92744 92745 92746 92747 92748 92749 | pCol->zType ? pCol->zType : "", 0); sqlite3VdbeAddOp2(v, OP_Integer, (pCol->notNull ? 1 : 0), 4); if( pCol->zDflt ){ sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, (char*)pCol->zDflt, 0); }else{ sqlite3VdbeAddOp2(v, OP_Null, 0, 5); } | > > > > > > > | < > | 93071 93072 93073 93074 93075 93076 93077 93078 93079 93080 93081 93082 93083 93084 93085 93086 93087 93088 93089 93090 93091 93092 93093 93094 93095 93096 93097 93098 93099 93100 93101 93102 93103 93104 93105 93106 93107 93108 | pCol->zType ? pCol->zType : "", 0); sqlite3VdbeAddOp2(v, OP_Integer, (pCol->notNull ? 1 : 0), 4); if( pCol->zDflt ){ sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, (char*)pCol->zDflt, 0); }else{ sqlite3VdbeAddOp2(v, OP_Null, 0, 5); } if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){ k = 0; }else if( pPk==0 ){ k = 1; }else{ for(k=1; ALWAYS(k<=pTab->nCol) && pPk->aiColumn[k-1]!=i; k++){} } sqlite3VdbeAddOp2(v, OP_Integer, k, 6); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6); } } }else if( sqlite3StrICmp(zLeft, "index_info")==0 && zRight ){ Index *pIdx; Table *pTab; if( sqlite3ReadSchema(pParse) ) goto pragma_out; pIdx = sqlite3FindIndex(db, zRight, zDb); if( pIdx ){ int i; pTab = pIdx->pTable; sqlite3VdbeSetNumCols(v, 3); pParse->nMem = 3; sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", SQLITE_STATIC); for(i=0; i<pIdx->nColumn; i++){ int cnum = pIdx->aiColumn[i]; sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp2(v, OP_Integer, cnum, 2); |
︙ | ︙ | |||
92786 92787 92788 92789 92790 92791 92792 92793 92794 92795 92796 92797 92798 92799 | if( pTab ){ v = sqlite3GetVdbe(pParse); pIdx = pTab->pIndex; if( pIdx ){ int i = 0; sqlite3VdbeSetNumCols(v, 3); pParse->nMem = 3; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC); while(pIdx){ sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0); sqlite3VdbeAddOp2(v, OP_Integer, pIdx->onError!=OE_None, 3); | > | 93121 93122 93123 93124 93125 93126 93127 93128 93129 93130 93131 93132 93133 93134 93135 | if( pTab ){ v = sqlite3GetVdbe(pParse); pIdx = pTab->pIndex; if( pIdx ){ int i = 0; sqlite3VdbeSetNumCols(v, 3); pParse->nMem = 3; sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC); while(pIdx){ sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0); sqlite3VdbeAddOp2(v, OP_Integer, pIdx->onError!=OE_None, 3); |
︙ | ︙ | |||
92849 92850 92851 92852 92853 92854 92855 92856 92857 92858 92859 92860 92861 92862 | if( pTab ){ v = sqlite3GetVdbe(pParse); pFK = pTab->pFKey; if( pFK ){ int i = 0; sqlite3VdbeSetNumCols(v, 8); pParse->nMem = 8; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "id", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "table", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "from", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "to", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "on_update", SQLITE_STATIC); sqlite3VdbeSetColName(v, 6, COLNAME_NAME, "on_delete", SQLITE_STATIC); | > | 93185 93186 93187 93188 93189 93190 93191 93192 93193 93194 93195 93196 93197 93198 93199 | if( pTab ){ v = sqlite3GetVdbe(pParse); pFK = pTab->pFKey; if( pFK ){ int i = 0; sqlite3VdbeSetNumCols(v, 8); pParse->nMem = 8; sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "id", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "table", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "from", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "to", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "on_update", SQLITE_STATIC); sqlite3VdbeSetColName(v, 6, COLNAME_NAME, "on_delete", SQLITE_STATIC); |
︙ | ︙ | |||
92882 92883 92884 92885 92886 92887 92888 92889 92890 92891 92892 92893 92894 92895 | pFK = pFK->pNextFrom; } } } }else #endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */ #ifndef NDEBUG if( sqlite3StrICmp(zLeft, "parser_trace")==0 ){ if( zRight ){ if( sqlite3GetBoolean(zRight, 0) ){ sqlite3ParserTrace(stderr, "parser: "); }else{ sqlite3ParserTrace(0, 0); | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 93219 93220 93221 93222 93223 93224 93225 93226 93227 93228 93229 93230 93231 93232 93233 93234 93235 93236 93237 93238 93239 93240 93241 93242 93243 93244 93245 93246 93247 93248 93249 93250 93251 93252 93253 93254 93255 93256 93257 93258 93259 93260 93261 93262 93263 93264 93265 93266 93267 93268 93269 93270 93271 93272 93273 93274 93275 93276 93277 93278 93279 93280 93281 93282 93283 93284 93285 93286 93287 93288 93289 93290 93291 93292 93293 93294 93295 93296 93297 93298 93299 93300 93301 93302 93303 93304 93305 93306 93307 93308 93309 93310 93311 93312 93313 93314 93315 93316 93317 93318 93319 93320 93321 93322 93323 93324 93325 93326 93327 93328 93329 93330 93331 93332 93333 93334 93335 93336 93337 93338 93339 93340 93341 93342 93343 93344 93345 93346 93347 93348 | pFK = pFK->pNextFrom; } } } }else #endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */ #ifndef SQLITE_OMIT_FOREIGN_KEY #ifndef SQLITE_OMIT_TRIGGER if( sqlite3StrICmp(zLeft, "foreign_key_check")==0 ){ FKey *pFK; /* A foreign key constraint */ Table *pTab; /* Child table contain "REFERENCES" keyword */ Table *pParent; /* Parent table that child points to */ Index *pIdx; /* Index in the parent table */ int i; /* Loop counter: Foreign key number for pTab */ int j; /* Loop counter: Field of the foreign key */ HashElem *k; /* Loop counter: Next table in schema */ int x; /* result variable */ int regResult; /* 3 registers to hold a result row */ int regKey; /* Register to hold key for checking the FK */ int regRow; /* Registers to hold a row from pTab */ int addrTop; /* Top of a loop checking foreign keys */ int addrOk; /* Jump here if the key is OK */ int *aiCols; /* child to parent column mapping */ if( sqlite3ReadSchema(pParse) ) goto pragma_out; regResult = pParse->nMem+1; pParse->nMem += 4; regKey = ++pParse->nMem; regRow = ++pParse->nMem; v = sqlite3GetVdbe(pParse); sqlite3VdbeSetNumCols(v, 4); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "table", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "rowid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "parent", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "fkid", SQLITE_STATIC); sqlite3CodeVerifySchema(pParse, iDb); k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash); while( k ){ if( zRight ){ pTab = sqlite3LocateTable(pParse, 0, zRight, zDb); k = 0; }else{ pTab = (Table*)sqliteHashData(k); k = sqliteHashNext(k); } if( pTab==0 || pTab->pFKey==0 ) continue; sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName); if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow; sqlite3OpenTable(pParse, 0, iDb, pTab, OP_OpenRead); sqlite3VdbeAddOp4(v, OP_String8, 0, regResult, 0, pTab->zName, P4_TRANSIENT); for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){ pParent = sqlite3LocateTable(pParse, 0, pFK->zTo, zDb); if( pParent==0 ) break; pIdx = 0; sqlite3TableLock(pParse, iDb, 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); }else{ KeyInfo *pKey = sqlite3IndexKeyinfo(pParse, pIdx); sqlite3VdbeAddOp3(v, OP_OpenRead, i, pIdx->tnum, iDb); sqlite3VdbeChangeP4(v, -1, (char*)pKey, P4_KEYINFO_HANDOFF); } }else{ k = 0; break; } } if( pFK ) break; if( pParse->nTab<i ) pParse->nTab = i; addrTop = sqlite3VdbeAddOp1(v, OP_Rewind, 0); for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){ pParent = sqlite3LocateTable(pParse, 0, pFK->zTo, zDb); assert( pParent!=0 ); pIdx = 0; aiCols = 0; x = sqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, &aiCols); assert( x==0 ); addrOk = sqlite3VdbeMakeLabel(v); if( pIdx==0 ){ int iKey = pFK->aCol[0].iFrom; assert( iKey>=0 && iKey<pTab->nCol ); if( iKey!=pTab->iPKey ){ sqlite3VdbeAddOp3(v, OP_Column, 0, iKey, regRow); sqlite3ColumnDefault(v, pTab, iKey, regRow); sqlite3VdbeAddOp2(v, OP_IsNull, regRow, addrOk); sqlite3VdbeAddOp2(v, OP_MustBeInt, regRow, sqlite3VdbeCurrentAddr(v)+3); }else{ sqlite3VdbeAddOp2(v, OP_Rowid, 0, regRow); } sqlite3VdbeAddOp3(v, OP_NotExists, i, 0, regRow); sqlite3VdbeAddOp2(v, OP_Goto, 0, addrOk); sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2); }else{ for(j=0; j<pFK->nCol; j++){ sqlite3ExprCodeGetColumnOfTable(v, pTab, 0, aiCols ? aiCols[j] : pFK->aCol[0].iFrom, regRow+j); sqlite3VdbeAddOp2(v, OP_IsNull, regRow+j, addrOk); } sqlite3VdbeAddOp3(v, OP_MakeRecord, regRow, pFK->nCol, regKey); sqlite3VdbeChangeP4(v, -1, sqlite3IndexAffinityStr(v,pIdx), P4_TRANSIENT); sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0); } sqlite3VdbeAddOp2(v, OP_Rowid, 0, regResult+1); sqlite3VdbeAddOp4(v, OP_String8, 0, regResult+2, 0, pFK->zTo, P4_TRANSIENT); sqlite3VdbeAddOp2(v, OP_Integer, i-1, regResult+3); sqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 4); sqlite3VdbeResolveLabel(v, addrOk); sqlite3DbFree(db, aiCols); } sqlite3VdbeAddOp2(v, OP_Next, 0, addrTop+1); sqlite3VdbeJumpHere(v, addrTop); } }else #endif /* !defined(SQLITE_OMIT_TRIGGER) */ #endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */ #ifndef NDEBUG if( sqlite3StrICmp(zLeft, "parser_trace")==0 ){ if( zRight ){ if( sqlite3GetBoolean(zRight, 0) ){ sqlite3ParserTrace(stderr, "parser: "); }else{ sqlite3ParserTrace(0, 0); |
︙ | ︙ | |||
93379 93380 93381 93382 93383 93384 93385 | sqlite3_key(db, zKey, i/2); }else{ sqlite3_rekey(db, zKey, i/2); } }else #endif #if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD) | | | 93832 93833 93834 93835 93836 93837 93838 93839 93840 93841 93842 93843 93844 93845 93846 | sqlite3_key(db, zKey, i/2); }else{ sqlite3_rekey(db, zKey, i/2); } }else #endif #if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD) if( sqlite3StrICmp(zLeft, "activate_extensions")==0 && zRight ){ #ifdef SQLITE_HAS_CODEC if( sqlite3StrNICmp(zRight, "see-", 4)==0 ){ sqlite3_activate_see(&zRight[4]); } #endif #ifdef SQLITE_ENABLE_CEROD if( sqlite3StrNICmp(zRight, "cerod-", 6)==0 ){ |
︙ | ︙ | |||
93676 93677 93678 93679 93680 93681 93682 93683 93684 93685 93686 93687 93688 93689 93690 93691 93692 93693 93694 | /* If opening a non-empty database, check the text encoding. For the ** main database, set sqlite3.enc to the encoding of the main database. ** For an attached db, it is an error if the encoding is not the same ** as sqlite3.enc. */ if( meta[BTREE_TEXT_ENCODING-1] ){ /* text encoding */ if( iDb==0 ){ u8 encoding; /* If opening the main database, set ENC(db). */ encoding = (u8)meta[BTREE_TEXT_ENCODING-1] & 3; if( encoding==0 ) encoding = SQLITE_UTF8; ENC(db) = encoding; }else{ /* If opening an attached database, the encoding much match ENC(db) */ if( meta[BTREE_TEXT_ENCODING-1]!=ENC(db) ){ sqlite3SetString(pzErrMsg, db, "attached databases must use the same" " text encoding as main database"); rc = SQLITE_ERROR; goto initone_error_out; | > > > > | 94129 94130 94131 94132 94133 94134 94135 94136 94137 94138 94139 94140 94141 94142 94143 94144 94145 94146 94147 94148 94149 94150 94151 | /* If opening a non-empty database, check the text encoding. For the ** main database, set sqlite3.enc to the encoding of the main database. ** For an attached db, it is an error if the encoding is not the same ** as sqlite3.enc. */ if( meta[BTREE_TEXT_ENCODING-1] ){ /* text encoding */ if( iDb==0 ){ #ifndef SQLITE_OMIT_UTF16 u8 encoding; /* If opening the main database, set ENC(db). */ encoding = (u8)meta[BTREE_TEXT_ENCODING-1] & 3; if( encoding==0 ) encoding = SQLITE_UTF8; ENC(db) = encoding; #else ENC(db) = SQLITE_UTF8; #endif }else{ /* If opening an attached database, the encoding much match ENC(db) */ if( meta[BTREE_TEXT_ENCODING-1]!=ENC(db) ){ sqlite3SetString(pzErrMsg, db, "attached databases must use the same" " text encoding as main database"); rc = SQLITE_ERROR; goto initone_error_out; |
︙ | ︙ | |||
94338 94339 94340 94341 94342 94343 94344 | Parse *pParse, /* Parsing context */ ExprList *pEList, /* which columns to include in the result */ SrcList *pSrc, /* the FROM clause -- which tables to scan */ Expr *pWhere, /* the WHERE clause */ ExprList *pGroupBy, /* the GROUP BY clause */ Expr *pHaving, /* the HAVING clause */ ExprList *pOrderBy, /* the ORDER BY clause */ | | | 94795 94796 94797 94798 94799 94800 94801 94802 94803 94804 94805 94806 94807 94808 94809 | Parse *pParse, /* Parsing context */ ExprList *pEList, /* which columns to include in the result */ SrcList *pSrc, /* the FROM clause -- which tables to scan */ Expr *pWhere, /* the WHERE clause */ ExprList *pGroupBy, /* the GROUP BY clause */ Expr *pHaving, /* the HAVING clause */ ExprList *pOrderBy, /* the ORDER BY clause */ u16 selFlags, /* Flag parameters, such as SF_Distinct */ Expr *pLimit, /* LIMIT value. NULL means not used */ Expr *pOffset /* OFFSET value. NULL means no offset */ ){ Select *pNew; Select standin; sqlite3 *db = pParse->db; pNew = sqlite3DbMallocZero(db, sizeof(*pNew) ); |
︙ | ︙ | |||
94362 94363 94364 94365 94366 94367 94368 | pNew->pEList = pEList; if( pSrc==0 ) pSrc = sqlite3DbMallocZero(db, sizeof(*pSrc)); pNew->pSrc = pSrc; pNew->pWhere = pWhere; pNew->pGroupBy = pGroupBy; pNew->pHaving = pHaving; pNew->pOrderBy = pOrderBy; | | | 94819 94820 94821 94822 94823 94824 94825 94826 94827 94828 94829 94830 94831 94832 94833 | pNew->pEList = pEList; if( pSrc==0 ) pSrc = sqlite3DbMallocZero(db, sizeof(*pSrc)); pNew->pSrc = pSrc; pNew->pWhere = pWhere; pNew->pGroupBy = pGroupBy; pNew->pHaving = pHaving; pNew->pOrderBy = pOrderBy; pNew->selFlags = selFlags; pNew->op = TK_SELECT; pNew->pLimit = pLimit; pNew->pOffset = pOffset; assert( pOffset==0 || pLimit!=0 ); pNew->addrOpenEphm[0] = -1; pNew->addrOpenEphm[1] = -1; pNew->addrOpenEphm[2] = -1; |
︙ | ︙ | |||
95619 95620 95621 95622 95623 95624 95625 | *pnCol = nCol; *paCol = aCol; for(i=0, pCol=aCol; i<nCol; i++, pCol++){ /* Get an appropriate name for the column */ p = sqlite3ExprSkipCollate(pEList->a[i].pExpr); | < < | 96076 96077 96078 96079 96080 96081 96082 96083 96084 96085 96086 96087 96088 96089 | *pnCol = nCol; *paCol = aCol; for(i=0, pCol=aCol; i<nCol; i++, pCol++){ /* Get an appropriate name for the column */ p = sqlite3ExprSkipCollate(pEList->a[i].pExpr); if( (zName = pEList->a[i].zName)!=0 ){ /* If the column contains an "AS <name>" phrase, use <name> as the name */ zName = sqlite3DbStrDup(db, zName); }else{ Expr *pColExpr = p; /* The expression that is the result column name */ Table *pTab; /* Table associated with this expression */ while( pColExpr->op==TK_DOT ){ |
︙ | ︙ | |||
95658 95659 95660 95661 95662 95663 95664 95665 95666 95667 95668 95669 95670 95671 | /* Make sure the column name is unique. If the name is not unique, ** append a integer to the name so that it becomes unique. */ nName = sqlite3Strlen30(zName); for(j=cnt=0; j<i; j++){ if( sqlite3StrICmp(aCol[j].zName, zName)==0 ){ char *zNewName; zName[nName] = 0; zNewName = sqlite3MPrintf(db, "%s:%d", zName, ++cnt); sqlite3DbFree(db, zName); zName = zNewName; j = -1; if( zName==0 ) break; } | > > > | 96113 96114 96115 96116 96117 96118 96119 96120 96121 96122 96123 96124 96125 96126 96127 96128 96129 | /* Make sure the column name is unique. If the name is not unique, ** append a integer to the name so that it becomes unique. */ nName = sqlite3Strlen30(zName); for(j=cnt=0; j<i; j++){ if( sqlite3StrICmp(aCol[j].zName, zName)==0 ){ char *zNewName; int k; for(k=nName-1; k>1 && sqlite3Isdigit(zName[k]); k--){} if( zName[k]==':' ) nName = k; zName[nName] = 0; zNewName = sqlite3MPrintf(db, "%s:%d", zName, ++cnt); sqlite3DbFree(db, zName); zName = zNewName; j = -1; if( zName==0 ) break; } |
︙ | ︙ | |||
95989 95990 95991 95992 95993 95994 95995 95996 95997 95998 95999 96000 96001 96002 | /* Generate code for the left and right SELECT statements. */ switch( p->op ){ case TK_ALL: { int addr = 0; int nLimit; assert( !pPrior->pLimit ); pPrior->pLimit = p->pLimit; pPrior->pOffset = p->pOffset; explainSetInteger(iSub1, pParse->iNextSelectId); rc = sqlite3Select(pParse, pPrior, &dest); p->pLimit = 0; p->pOffset = 0; if( rc ){ | > > | 96447 96448 96449 96450 96451 96452 96453 96454 96455 96456 96457 96458 96459 96460 96461 96462 | /* Generate code for the left and right SELECT statements. */ switch( p->op ){ case TK_ALL: { int addr = 0; int nLimit; assert( !pPrior->pLimit ); pPrior->iLimit = p->iLimit; pPrior->iOffset = p->iOffset; pPrior->pLimit = p->pLimit; pPrior->pOffset = p->pOffset; explainSetInteger(iSub1, pParse->iNextSelectId); rc = sqlite3Select(pParse, pPrior, &dest); p->pLimit = 0; p->pOffset = 0; if( rc ){ |
︙ | ︙ | |||
96646 96647 96648 96649 96650 96651 96652 | ** operator is UNION, EXCEPT, or INTERSECT (but not UNION ALL). */ if( op==TK_ALL ){ regPrev = 0; }else{ int nExpr = p->pEList->nExpr; assert( nOrderBy>=nExpr || db->mallocFailed ); | | > | 97106 97107 97108 97109 97110 97111 97112 97113 97114 97115 97116 97117 97118 97119 97120 97121 | ** operator is UNION, EXCEPT, or INTERSECT (but not UNION ALL). */ if( op==TK_ALL ){ regPrev = 0; }else{ int nExpr = p->pEList->nExpr; assert( nOrderBy>=nExpr || db->mallocFailed ); regPrev = pParse->nMem+1; pParse->nMem += nExpr+1; sqlite3VdbeAddOp2(v, OP_Integer, 0, regPrev); pKeyDup = sqlite3DbMallocZero(db, sizeof(*pKeyDup) + nExpr*(sizeof(CollSeq*)+1) ); if( pKeyDup ){ pKeyDup->aSortOrder = (u8*)&pKeyDup->aColl[nExpr]; pKeyDup->nField = (u16)nExpr; pKeyDup->enc = ENC(db); |
︙ | ︙ | |||
96828 96829 96830 96831 96832 96833 96834 | sqlite3VdbeResolveLabel(v, labelCmpr); sqlite3VdbeAddOp4(v, OP_Permutation, 0, 0, 0, (char*)aPermute, P4_INTARRAY); sqlite3VdbeAddOp4(v, OP_Compare, destA.iSdst, destB.iSdst, nOrderBy, (char*)pKeyMerge, P4_KEYINFO_HANDOFF); sqlite3VdbeChangeP5(v, OPFLAG_PERMUTE); sqlite3VdbeAddOp3(v, OP_Jump, addrAltB, addrAeqB, addrAgtB); | < < < < < < | 97289 97290 97291 97292 97293 97294 97295 97296 97297 97298 97299 97300 97301 97302 | sqlite3VdbeResolveLabel(v, labelCmpr); sqlite3VdbeAddOp4(v, OP_Permutation, 0, 0, 0, (char*)aPermute, P4_INTARRAY); sqlite3VdbeAddOp4(v, OP_Compare, destA.iSdst, destB.iSdst, nOrderBy, (char*)pKeyMerge, P4_KEYINFO_HANDOFF); sqlite3VdbeChangeP5(v, OPFLAG_PERMUTE); sqlite3VdbeAddOp3(v, OP_Jump, addrAltB, addrAeqB, addrAgtB); /* Jump to the this point in order to terminate the query. */ sqlite3VdbeResolveLabel(v, labelEnd); /* Set the number of output columns */ if( pDest->eDest==SRT_Output ){ |
︙ | ︙ | |||
97245 97246 97247 97248 97249 97250 97251 97252 97253 97254 97255 97256 97257 97258 97259 97260 97261 97262 97263 97264 | ** ** We call this the "compound-subquery flattening". */ for(pSub=pSub->pPrior; pSub; pSub=pSub->pPrior){ Select *pNew; ExprList *pOrderBy = p->pOrderBy; Expr *pLimit = p->pLimit; Select *pPrior = p->pPrior; p->pOrderBy = 0; p->pSrc = 0; p->pPrior = 0; p->pLimit = 0; pNew = sqlite3SelectDup(db, p, 0); p->pLimit = pLimit; p->pOrderBy = pOrderBy; p->pSrc = pSrc; p->op = TK_ALL; p->pRightmost = 0; if( pNew==0 ){ pNew = pPrior; | > > > | 97700 97701 97702 97703 97704 97705 97706 97707 97708 97709 97710 97711 97712 97713 97714 97715 97716 97717 97718 97719 97720 97721 97722 | ** ** We call this the "compound-subquery flattening". */ for(pSub=pSub->pPrior; pSub; pSub=pSub->pPrior){ Select *pNew; ExprList *pOrderBy = p->pOrderBy; Expr *pLimit = p->pLimit; Expr *pOffset = p->pOffset; Select *pPrior = p->pPrior; p->pOrderBy = 0; p->pSrc = 0; p->pPrior = 0; p->pLimit = 0; p->pOffset = 0; pNew = sqlite3SelectDup(db, p, 0); p->pOffset = pOffset; p->pLimit = pLimit; p->pOrderBy = pOrderBy; p->pSrc = pSrc; p->op = TK_ALL; p->pRightmost = 0; if( pNew==0 ){ pNew = pPrior; |
︙ | ︙ | |||
97443 97444 97445 97446 97447 97448 97449 | sqlite3SelectDelete(db, pSub1); return 1; } #endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */ /* | > | < < < > > | | | > > > > | > > > > | | < < | < < < | | | | > | | > | > > > > | | 97901 97902 97903 97904 97905 97906 97907 97908 97909 97910 97911 97912 97913 97914 97915 97916 97917 97918 97919 97920 97921 97922 97923 97924 97925 97926 97927 97928 97929 97930 97931 97932 97933 97934 97935 97936 97937 97938 97939 97940 97941 97942 97943 97944 97945 97946 97947 97948 97949 97950 97951 | sqlite3SelectDelete(db, pSub1); return 1; } #endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */ /* ** Based on the contents of the AggInfo structure indicated by the first ** argument, this function checks if the following are true: ** ** * the query contains just a single aggregate function, ** * the aggregate function is either min() or max(), and ** * the argument to the aggregate function is a column value. ** ** If all of the above are true, then WHERE_ORDERBY_MIN or WHERE_ORDERBY_MAX ** is returned as appropriate. Also, *ppMinMax is set to point to the ** list of arguments passed to the aggregate before returning. ** ** Or, if the conditions above are not met, *ppMinMax is set to 0 and ** WHERE_ORDERBY_NORMAL is returned. */ static u8 minMaxQuery(AggInfo *pAggInfo, ExprList **ppMinMax){ int eRet = WHERE_ORDERBY_NORMAL; /* Return value */ *ppMinMax = 0; if( pAggInfo->nFunc==1 ){ Expr *pExpr = pAggInfo->aFunc[0].pExpr; /* Aggregate function */ ExprList *pEList = pExpr->x.pList; /* Arguments to agg function */ assert( pExpr->op==TK_AGG_FUNCTION ); if( pEList && pEList->nExpr==1 && pEList->a[0].pExpr->op==TK_AGG_COLUMN ){ const char *zFunc = pExpr->u.zToken; if( sqlite3StrICmp(zFunc, "min")==0 ){ eRet = WHERE_ORDERBY_MIN; *ppMinMax = pEList; }else if( sqlite3StrICmp(zFunc, "max")==0 ){ eRet = WHERE_ORDERBY_MAX; *ppMinMax = pEList; } } } assert( *ppMinMax==0 || (*ppMinMax)->nExpr==1 ); return eRet; } /* ** The select statement passed as the first argument is an aggregate query. ** The second argment is the associated aggregate-info object. This ** function tests if the SELECT is of the form: ** |
︙ | ︙ | |||
97565 97566 97567 97568 97569 97570 97571 97572 97573 97574 97575 | static int selectExpander(Walker *pWalker, Select *p){ Parse *pParse = pWalker->pParse; int i, j, k; SrcList *pTabList; ExprList *pEList; struct SrcList_item *pFrom; sqlite3 *db = pParse->db; if( db->mallocFailed ){ return WRC_Abort; } | > > > | < | 98032 98033 98034 98035 98036 98037 98038 98039 98040 98041 98042 98043 98044 98045 98046 98047 98048 98049 98050 98051 98052 98053 98054 98055 | static int selectExpander(Walker *pWalker, Select *p){ Parse *pParse = pWalker->pParse; int i, j, k; SrcList *pTabList; ExprList *pEList; struct SrcList_item *pFrom; sqlite3 *db = pParse->db; Expr *pE, *pRight, *pExpr; u16 selFlags = p->selFlags; p->selFlags |= SF_Expanded; if( db->mallocFailed ){ return WRC_Abort; } if( NEVER(p->pSrc==0) || (selFlags & SF_Expanded)!=0 ){ return WRC_Prune; } pTabList = p->pSrc; pEList = p->pEList; /* Make sure cursor numbers have been assigned to all entries in ** the FROM clause of the SELECT statement. */ sqlite3SrcListAssignCursors(pParse, pTabList); |
︙ | ︙ | |||
97615 97616 97617 97618 97619 97620 97621 97622 97623 97624 97625 97626 97627 97628 | pTab->tabFlags |= TF_Ephemeral; #endif }else{ /* An ordinary table or view name in the FROM clause */ assert( pFrom->pTab==0 ); pFrom->pTab = pTab = sqlite3LocateTableItem(pParse, 0, pFrom); if( pTab==0 ) return WRC_Abort; pTab->nRef++; #if !defined(SQLITE_OMIT_VIEW) || !defined (SQLITE_OMIT_VIRTUALTABLE) if( pTab->pSelect || IsVirtual(pTab) ){ /* We reach here if the named table is a really a view */ if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort; assert( pFrom->pSelect==0 ); pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0); | > > > > > > | 98084 98085 98086 98087 98088 98089 98090 98091 98092 98093 98094 98095 98096 98097 98098 98099 98100 98101 98102 98103 | pTab->tabFlags |= TF_Ephemeral; #endif }else{ /* An ordinary table or view name in the FROM clause */ assert( pFrom->pTab==0 ); pFrom->pTab = pTab = sqlite3LocateTableItem(pParse, 0, pFrom); if( pTab==0 ) return WRC_Abort; if( pTab->nRef==0xffff ){ sqlite3ErrorMsg(pParse, "too many references to \"%s\": max 65535", pTab->zName); pFrom->pTab = 0; return WRC_Abort; } pTab->nRef++; #if !defined(SQLITE_OMIT_VIEW) || !defined (SQLITE_OMIT_VIRTUALTABLE) if( pTab->pSelect || IsVirtual(pTab) ){ /* We reach here if the named table is a really a view */ if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort; assert( pFrom->pSelect==0 ); pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0); |
︙ | ︙ | |||
97650 97651 97652 97653 97654 97655 97656 | ** The following code just has to locate the TK_ALL expressions and expand ** each one to the list of all columns in all tables. ** ** The first loop just checks to see if there are any "*" operators ** that need expanding. */ for(k=0; k<pEList->nExpr; k++){ | | > > > > > > > | > | | | < < > > > > > | | | | > > < > > > > > > > > | 98125 98126 98127 98128 98129 98130 98131 98132 98133 98134 98135 98136 98137 98138 98139 98140 98141 98142 98143 98144 98145 98146 98147 98148 98149 98150 98151 98152 98153 98154 98155 98156 98157 98158 98159 98160 98161 98162 98163 98164 98165 98166 98167 98168 98169 98170 98171 98172 98173 98174 98175 98176 98177 98178 98179 98180 98181 98182 98183 98184 98185 98186 98187 98188 98189 98190 98191 98192 98193 98194 98195 98196 98197 98198 98199 98200 98201 98202 98203 98204 98205 98206 98207 98208 98209 98210 98211 98212 98213 98214 98215 98216 98217 98218 98219 98220 98221 98222 98223 98224 98225 98226 98227 98228 | ** The following code just has to locate the TK_ALL expressions and expand ** each one to the list of all columns in all tables. ** ** The first loop just checks to see if there are any "*" operators ** that need expanding. */ for(k=0; k<pEList->nExpr; k++){ pE = pEList->a[k].pExpr; if( pE->op==TK_ALL ) break; assert( pE->op!=TK_DOT || pE->pRight!=0 ); assert( pE->op!=TK_DOT || (pE->pLeft!=0 && pE->pLeft->op==TK_ID) ); if( pE->op==TK_DOT && pE->pRight->op==TK_ALL ) break; } if( k<pEList->nExpr ){ /* ** If we get here it means the result set contains one or more "*" ** operators that need to be expanded. Loop through each expression ** in the result set and expand them one by one. */ struct ExprList_item *a = pEList->a; ExprList *pNew = 0; int flags = pParse->db->flags; int longNames = (flags & SQLITE_FullColNames)!=0 && (flags & SQLITE_ShortColNames)==0; /* When processing FROM-clause subqueries, it is always the case ** that full_column_names=OFF and short_column_names=ON. The ** sqlite3ResultSetOfSelect() routine makes it so. */ assert( (p->selFlags & SF_NestedFrom)==0 || ((flags & SQLITE_FullColNames)==0 && (flags & SQLITE_ShortColNames)!=0) ); for(k=0; k<pEList->nExpr; k++){ pE = a[k].pExpr; pRight = pE->pRight; assert( pE->op!=TK_DOT || pRight!=0 ); if( pE->op!=TK_ALL && (pE->op!=TK_DOT || pRight->op!=TK_ALL) ){ /* This particular expression does not need to be expanded. */ pNew = sqlite3ExprListAppend(pParse, pNew, a[k].pExpr); if( pNew ){ pNew->a[pNew->nExpr-1].zName = a[k].zName; pNew->a[pNew->nExpr-1].zSpan = a[k].zSpan; a[k].zName = 0; a[k].zSpan = 0; } a[k].pExpr = 0; }else{ /* This expression is a "*" or a "TABLE.*" and needs to be ** expanded. */ int tableSeen = 0; /* Set to 1 when TABLE matches */ char *zTName = 0; /* text of name of TABLE */ if( pE->op==TK_DOT ){ assert( pE->pLeft!=0 ); assert( !ExprHasProperty(pE->pLeft, EP_IntValue) ); zTName = pE->pLeft->u.zToken; } for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){ Table *pTab = pFrom->pTab; Select *pSub = pFrom->pSelect; char *zTabName = pFrom->zAlias; const char *zSchemaName = 0; int iDb; if( zTabName==0 ){ zTabName = pTab->zName; } if( db->mallocFailed ) break; if( pSub==0 || (pSub->selFlags & SF_NestedFrom)==0 ){ pSub = 0; if( zTName && sqlite3StrICmp(zTName, zTabName)!=0 ){ continue; } iDb = sqlite3SchemaToIndex(db, pTab->pSchema); zSchemaName = iDb>=0 ? db->aDb[iDb].zName : "*"; } for(j=0; j<pTab->nCol; j++){ char *zName = pTab->aCol[j].zName; char *zColname; /* The computed column name */ char *zToFree; /* Malloced string that needs to be freed */ Token sColname; /* Computed column name as a token */ assert( zName ); if( zTName && pSub && sqlite3MatchSpanName(pSub->pEList->a[j].zSpan, 0, zTName, 0)==0 ){ continue; } /* If a column is marked as 'hidden' (currently only possible ** for virtual tables), do not include it in the expanded ** result-set list. */ if( IsHiddenColumn(&pTab->aCol[j]) ){ assert(IsVirtual(pTab)); continue; } tableSeen = 1; if( i>0 && zTName==0 ){ if( (pFrom->jointype & JT_NATURAL)!=0 && tableAndColumnIndex(pTabList, i, zName, 0, 0) ){ /* In a NATURAL join, omit the join columns from the ** table to the right of the join */ |
︙ | ︙ | |||
97742 97743 97744 97745 97746 97747 97748 97749 97750 97751 97752 97753 97754 97755 97756 97757 97758 97759 97760 97761 97762 97763 97764 97765 97766 | pRight = sqlite3Expr(db, TK_ID, zName); zColname = zName; zToFree = 0; if( longNames || pTabList->nSrc>1 ){ Expr *pLeft; pLeft = sqlite3Expr(db, TK_ID, zTabName); pExpr = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight, 0); if( longNames ){ zColname = sqlite3MPrintf(db, "%s.%s", zTabName, zName); zToFree = zColname; } }else{ pExpr = pRight; } pNew = sqlite3ExprListAppend(pParse, pNew, pExpr); sColname.z = zColname; sColname.n = sqlite3Strlen30(zColname); sqlite3ExprListSetName(pParse, pNew, &sColname, 0); sqlite3DbFree(db, zToFree); } } if( !tableSeen ){ if( zTName ){ sqlite3ErrorMsg(pParse, "no such table: %s", zTName); }else{ | > > > > > > > > > > > > > > > > | 98237 98238 98239 98240 98241 98242 98243 98244 98245 98246 98247 98248 98249 98250 98251 98252 98253 98254 98255 98256 98257 98258 98259 98260 98261 98262 98263 98264 98265 98266 98267 98268 98269 98270 98271 98272 98273 98274 98275 98276 98277 | pRight = sqlite3Expr(db, TK_ID, zName); zColname = zName; zToFree = 0; if( longNames || pTabList->nSrc>1 ){ Expr *pLeft; pLeft = sqlite3Expr(db, TK_ID, zTabName); pExpr = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight, 0); if( zSchemaName ){ pLeft = sqlite3Expr(db, TK_ID, zSchemaName); pExpr = sqlite3PExpr(pParse, TK_DOT, pLeft, pExpr, 0); } if( longNames ){ zColname = sqlite3MPrintf(db, "%s.%s", zTabName, zName); zToFree = zColname; } }else{ pExpr = pRight; } pNew = sqlite3ExprListAppend(pParse, pNew, pExpr); sColname.z = zColname; sColname.n = sqlite3Strlen30(zColname); sqlite3ExprListSetName(pParse, pNew, &sColname, 0); if( pNew && (p->selFlags & SF_NestedFrom)!=0 ){ struct ExprList_item *pX = &pNew->a[pNew->nExpr-1]; if( pSub ){ pX->zSpan = sqlite3DbStrDup(db, pSub->pEList->a[j].zSpan); testcase( pX->zSpan==0 ); }else{ pX->zSpan = sqlite3MPrintf(db, "%s.%s.%s", zSchemaName, zTabName, zColname); testcase( pX->zSpan==0 ); } pX->bSpanIsTab = 1; } sqlite3DbFree(db, zToFree); } } if( !tableSeen ){ if( zTName ){ sqlite3ErrorMsg(pParse, "no such table: %s", zTName); }else{ |
︙ | ︙ | |||
97891 97892 97893 97894 97895 97896 97897 97898 97899 97900 97901 97902 97903 97904 | Parse *pParse, /* The parser context */ Select *p, /* The SELECT statement being coded. */ NameContext *pOuterNC /* Name context for container */ ){ sqlite3 *db; if( NEVER(p==0) ) return; db = pParse->db; if( p->selFlags & SF_HasTypeInfo ) return; sqlite3SelectExpand(pParse, p); if( pParse->nErr || db->mallocFailed ) return; sqlite3ResolveSelectNames(pParse, p, pOuterNC); if( pParse->nErr || db->mallocFailed ) return; sqlite3SelectAddTypeInfo(pParse, p); } | > | 98402 98403 98404 98405 98406 98407 98408 98409 98410 98411 98412 98413 98414 98415 98416 | Parse *pParse, /* The parser context */ Select *p, /* The SELECT statement being coded. */ NameContext *pOuterNC /* Name context for container */ ){ sqlite3 *db; if( NEVER(p==0) ) return; db = pParse->db; if( db->mallocFailed ) return; if( p->selFlags & SF_HasTypeInfo ) return; sqlite3SelectExpand(pParse, p); if( pParse->nErr || db->mallocFailed ) return; sqlite3ResolveSelectNames(pParse, p, pOuterNC); if( pParse->nErr || db->mallocFailed ) return; sqlite3SelectAddTypeInfo(pParse, p); } |
︙ | ︙ | |||
98810 98811 98812 98813 98814 98815 98816 | ** ** + The optimizer code in where.c (the thing that decides which ** index or indices to use) should place a different priority on ** satisfying the 'ORDER BY' clause than it does in other cases. ** Refer to code and comments in where.c for details. */ ExprList *pMinMax = 0; | > > > > > | > > > < < | | 99322 99323 99324 99325 99326 99327 99328 99329 99330 99331 99332 99333 99334 99335 99336 99337 99338 99339 99340 99341 99342 99343 99344 99345 99346 | ** ** + The optimizer code in where.c (the thing that decides which ** index or indices to use) should place a different priority on ** satisfying the 'ORDER BY' clause than it does in other cases. ** Refer to code and comments in where.c for details. */ ExprList *pMinMax = 0; u8 flag = WHERE_ORDERBY_NORMAL; assert( p->pGroupBy==0 ); assert( flag==0 ); if( p->pHaving==0 ){ flag = minMaxQuery(&sAggInfo, &pMinMax); } assert( flag==0 || (pMinMax!=0 && pMinMax->nExpr==1) ); if( flag ){ pMinMax = sqlite3ExprListDup(db, pMinMax, 0); pDel = pMinMax; if( pMinMax && !db->mallocFailed ){ pMinMax->a[0].sortOrder = flag!=WHERE_ORDERBY_MIN ?1:0; pMinMax->a[0].pExpr->op = TK_COLUMN; } } |
︙ | ︙ | |||
98970 98971 98972 98973 98974 98975 98976 | } } SQLITE_PRIVATE void sqlite3ExplainSelect(Vdbe *pVdbe, Select *p){ if( p==0 ){ sqlite3ExplainPrintf(pVdbe, "(null-select)"); return; } | | > > > | 99488 99489 99490 99491 99492 99493 99494 99495 99496 99497 99498 99499 99500 99501 99502 99503 99504 99505 | } } SQLITE_PRIVATE void sqlite3ExplainSelect(Vdbe *pVdbe, Select *p){ if( p==0 ){ sqlite3ExplainPrintf(pVdbe, "(null-select)"); return; } while( p->pPrior ){ p->pPrior->pNext = p; p = p->pPrior; } sqlite3ExplainPush(pVdbe); while( p ){ explainOneSelect(pVdbe, p); p = p->pNext; if( p==0 ) break; sqlite3ExplainNL(pVdbe); sqlite3ExplainPrintf(pVdbe, "%s\n", selectOpName(p->op)); |
︙ | ︙ | |||
102547 102548 102549 102550 102551 102552 102553 | typedef struct WhereTerm WhereTerm; struct WhereTerm { Expr *pExpr; /* Pointer to the subexpression that is this term */ int iParent; /* Disable pWC->a[iParent] when this term disabled */ int leftCursor; /* Cursor number of X in "X <op> <expr>" */ union { int leftColumn; /* Column number of X in "X <op> <expr>" */ | | | | 103068 103069 103070 103071 103072 103073 103074 103075 103076 103077 103078 103079 103080 103081 103082 103083 | typedef struct WhereTerm WhereTerm; struct WhereTerm { Expr *pExpr; /* Pointer to the subexpression that is this term */ int iParent; /* Disable pWC->a[iParent] when this term disabled */ int leftCursor; /* Cursor number of X in "X <op> <expr>" */ union { int leftColumn; /* Column number of X in "X <op> <expr>" */ WhereOrInfo *pOrInfo; /* Extra information if (eOperator & WO_OR)!=0 */ WhereAndInfo *pAndInfo; /* Extra information if (eOperator& WO_AND)!=0 */ } u; u16 eOperator; /* A WO_xx value describing <op> */ u8 wtFlags; /* TERM_xxx bit flags. See below */ u8 nChild; /* Number of children that must disable us */ WhereClause *pWC; /* The clause this term is part of */ Bitmask prereqRight; /* Bitmask of tables used by pExpr->pRight */ Bitmask prereqAll; /* Bitmask of tables referenced by pExpr */ |
︙ | ︙ | |||
102589 102590 102591 102592 102593 102594 102595 | ** There are separate WhereClause objects for the whole clause and for ** the subclauses "(b AND c)" and "(d AND e)". The pOuter field of the ** subclauses points to the WhereClause object for the whole clause. */ struct WhereClause { Parse *pParse; /* The parser context */ WhereMaskSet *pMaskSet; /* Mapping of table cursor numbers to bitmasks */ | < | 103110 103111 103112 103113 103114 103115 103116 103117 103118 103119 103120 103121 103122 103123 | ** There are separate WhereClause objects for the whole clause and for ** the subclauses "(b AND c)" and "(d AND e)". The pOuter field of the ** subclauses points to the WhereClause object for the whole clause. */ struct WhereClause { Parse *pParse; /* The parser context */ WhereMaskSet *pMaskSet; /* Mapping of table cursor numbers to bitmasks */ WhereClause *pOuter; /* Outer conjunction */ u8 op; /* Split operator. TK_AND or TK_OR */ u16 wctrlFlags; /* Might include WHERE_AND_ONLY */ int nTerm; /* Number of terms */ int nSlot; /* Number of entries in a[] */ WhereTerm *a; /* Each a[] describes a term of the WHERE cluase */ #if defined(SQLITE_SMALL_STACK) |
︙ | ︙ | |||
102676 102677 102678 102679 102680 102681 102682 102683 102684 102685 102686 102687 102688 102689 | #define WO_LE (WO_EQ<<(TK_LE-TK_EQ)) #define WO_GT (WO_EQ<<(TK_GT-TK_EQ)) #define WO_GE (WO_EQ<<(TK_GE-TK_EQ)) #define WO_MATCH 0x040 #define WO_ISNULL 0x080 #define WO_OR 0x100 /* Two or more OR-connected terms */ #define WO_AND 0x200 /* Two or more AND-connected terms */ #define WO_NOOP 0x800 /* This term does not restrict search space */ #define WO_ALL 0xfff /* Mask of all possible WO_* values */ #define WO_SINGLE 0x0ff /* Mask of all non-compound WO_* values */ /* ** Value for wsFlags returned by bestIndex() and stored in | > | 103196 103197 103198 103199 103200 103201 103202 103203 103204 103205 103206 103207 103208 103209 103210 | #define WO_LE (WO_EQ<<(TK_LE-TK_EQ)) #define WO_GT (WO_EQ<<(TK_GT-TK_EQ)) #define WO_GE (WO_EQ<<(TK_GE-TK_EQ)) #define WO_MATCH 0x040 #define WO_ISNULL 0x080 #define WO_OR 0x100 /* Two or more OR-connected terms */ #define WO_AND 0x200 /* Two or more AND-connected terms */ #define WO_EQUIV 0x400 /* Of the form A==B, both columns */ #define WO_NOOP 0x800 /* This term does not restrict search space */ #define WO_ALL 0xfff /* Mask of all possible WO_* values */ #define WO_SINGLE 0x0ff /* Mask of all non-compound WO_* values */ /* ** Value for wsFlags returned by bestIndex() and stored in |
︙ | ︙ | |||
102702 102703 102704 102705 102706 102707 102708 | #define WHERE_ROWID_RANGE 0x00002000 /* rowid<EXPR and/or rowid>EXPR */ #define WHERE_COLUMN_EQ 0x00010000 /* x=EXPR or x IN (...) or x IS NULL */ #define WHERE_COLUMN_RANGE 0x00020000 /* x<EXPR and/or x>EXPR */ #define WHERE_COLUMN_IN 0x00040000 /* x IN (...) */ #define WHERE_COLUMN_NULL 0x00080000 /* x IS NULL */ #define WHERE_INDEXED 0x000f0000 /* Anything that uses an index */ #define WHERE_NOT_FULLSCAN 0x100f3000 /* Does not do a full table scan */ | | | 103223 103224 103225 103226 103227 103228 103229 103230 103231 103232 103233 103234 103235 103236 103237 | #define WHERE_ROWID_RANGE 0x00002000 /* rowid<EXPR and/or rowid>EXPR */ #define WHERE_COLUMN_EQ 0x00010000 /* x=EXPR or x IN (...) or x IS NULL */ #define WHERE_COLUMN_RANGE 0x00020000 /* x<EXPR and/or x>EXPR */ #define WHERE_COLUMN_IN 0x00040000 /* x IN (...) */ #define WHERE_COLUMN_NULL 0x00080000 /* x IS NULL */ #define WHERE_INDEXED 0x000f0000 /* Anything that uses an index */ #define WHERE_NOT_FULLSCAN 0x100f3000 /* Does not do a full table scan */ #define WHERE_IN_ABLE 0x080f1000 /* Able to support an IN operator */ #define WHERE_TOP_LIMIT 0x00100000 /* x<EXPR or x<=EXPR constraint */ #define WHERE_BTM_LIMIT 0x00200000 /* x>EXPR or x>=EXPR constraint */ #define WHERE_BOTH_LIMIT 0x00300000 /* Both x>EXPR and x<EXPR */ #define WHERE_IDX_ONLY 0x00400000 /* Use index only - omit table */ #define WHERE_ORDERED 0x00800000 /* Output will appear in correct order */ #define WHERE_REVERSE 0x01000000 /* Scan in reverse order */ #define WHERE_UNIQUE 0x02000000 /* Selects no more than one row */ |
︙ | ︙ | |||
102765 102766 102767 102768 102769 102770 102771 | ){ pWC->pParse = pParse; pWC->pMaskSet = pMaskSet; pWC->pOuter = 0; pWC->nTerm = 0; pWC->nSlot = ArraySize(pWC->aStatic); pWC->a = pWC->aStatic; | < | 103286 103287 103288 103289 103290 103291 103292 103293 103294 103295 103296 103297 103298 103299 | ){ pWC->pParse = pParse; pWC->pMaskSet = pMaskSet; pWC->pOuter = 0; pWC->nTerm = 0; pWC->nSlot = ArraySize(pWC->aStatic); pWC->a = pWC->aStatic; pWC->wctrlFlags = wctrlFlags; } /* Forward reference */ static void whereClauseClear(WhereClause*); /* |
︙ | ︙ | |||
102852 102853 102854 102855 102856 102857 102858 | memcpy(pWC->a, pOld, sizeof(pWC->a[0])*pWC->nTerm); if( pOld!=pWC->aStatic ){ sqlite3DbFree(db, pOld); } pWC->nSlot = sqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]); } pTerm = &pWC->a[idx = pWC->nTerm++]; | | | 103372 103373 103374 103375 103376 103377 103378 103379 103380 103381 103382 103383 103384 103385 103386 | memcpy(pWC->a, pOld, sizeof(pWC->a[0])*pWC->nTerm); if( pOld!=pWC->aStatic ){ sqlite3DbFree(db, pOld); } pWC->nSlot = sqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]); } pTerm = &pWC->a[idx = pWC->nTerm++]; pTerm->pExpr = sqlite3ExprSkipCollate(p); pTerm->wtFlags = wtFlags; pTerm->pWC = pWC; pTerm->iParent = -1; return idx; } /* |
︙ | ︙ | |||
103078 103079 103080 103081 103082 103083 103084 103085 103086 103087 103088 103089 103090 103091 103092 103093 | } /* ** Search for a term in the WHERE clause that is of the form "X <op> <expr>" ** where X is a reference to the iColumn of table iCur and <op> is one of ** the WO_xx operator codes specified by the op parameter. ** Return a pointer to the term. Return 0 if not found. */ static WhereTerm *findTerm( WhereClause *pWC, /* The WHERE clause to be searched */ int iCur, /* Cursor number of LHS */ int iColumn, /* Column number of LHS */ Bitmask notReady, /* RHS must not overlap with this mask */ u32 op, /* Mask of WO_xx values describing operator */ Index *pIdx /* Must be compatible with this index, if not NULL */ ){ | > > > > > > > > > > > > > > > > > | > > > > > > > > > | | > > | | | < | > > | | | < | | | > | < | | > > | | | | | | | | | | | | | > | > > | > > > | | > > > > > > > | > > > > > > > > > > > > > > | | 103598 103599 103600 103601 103602 103603 103604 103605 103606 103607 103608 103609 103610 103611 103612 103613 103614 103615 103616 103617 103618 103619 103620 103621 103622 103623 103624 103625 103626 103627 103628 103629 103630 103631 103632 103633 103634 103635 103636 103637 103638 103639 103640 103641 103642 103643 103644 103645 103646 103647 103648 103649 103650 103651 103652 103653 103654 103655 103656 103657 103658 103659 103660 103661 103662 103663 103664 103665 103666 103667 103668 103669 103670 103671 103672 103673 103674 103675 103676 103677 103678 103679 103680 103681 103682 103683 103684 103685 103686 103687 103688 103689 103690 103691 103692 103693 103694 103695 103696 103697 103698 103699 103700 103701 103702 103703 103704 103705 103706 103707 103708 103709 103710 103711 103712 103713 103714 103715 103716 | } /* ** Search for a term in the WHERE clause that is of the form "X <op> <expr>" ** where X is a reference to the iColumn of table iCur and <op> is one of ** the WO_xx operator codes specified by the op parameter. ** Return a pointer to the term. Return 0 if not found. ** ** The term returned might by Y=<expr> if there is another constraint in ** the WHERE clause that specifies that X=Y. Any such constraints will be ** identified by the WO_EQUIV bit in the pTerm->eOperator field. The ** aEquiv[] array holds X and all its equivalents, with each SQL variable ** taking up two slots in aEquiv[]. The first slot is for the cursor number ** and the second is for the column number. There are 22 slots in aEquiv[] ** so that means we can look for X plus up to 10 other equivalent values. ** Hence a search for X will return <expr> if X=A1 and A1=A2 and A2=A3 ** and ... and A9=A10 and A10=<expr>. ** ** If there are multiple terms in the WHERE clause of the form "X <op> <expr>" ** then try for the one with no dependencies on <expr> - in other words where ** <expr> is a constant expression of some kind. Only return entries of ** the form "X <op> Y" where Y is a column in another table if no terms of ** the form "X <op> <const-expr>" exist. If no terms with a constant RHS ** exist, try to return a term that does not use WO_EQUIV. */ static WhereTerm *findTerm( WhereClause *pWC, /* The WHERE clause to be searched */ int iCur, /* Cursor number of LHS */ int iColumn, /* Column number of LHS */ Bitmask notReady, /* RHS must not overlap with this mask */ u32 op, /* Mask of WO_xx values describing operator */ Index *pIdx /* Must be compatible with this index, if not NULL */ ){ WhereTerm *pTerm; /* Term being examined as possible result */ WhereTerm *pResult = 0; /* The answer to return */ WhereClause *pWCOrig = pWC; /* Original pWC value */ int j, k; /* Loop counters */ Expr *pX; /* Pointer to an expression */ Parse *pParse; /* Parsing context */ int iOrigCol = iColumn; /* Original value of iColumn */ int nEquiv = 2; /* Number of entires in aEquiv[] */ int iEquiv = 2; /* Number of entries of aEquiv[] processed so far */ int aEquiv[22]; /* iCur,iColumn and up to 10 other equivalents */ assert( iCur>=0 ); aEquiv[0] = iCur; aEquiv[1] = iColumn; for(;;){ for(pWC=pWCOrig; pWC; pWC=pWC->pOuter){ for(pTerm=pWC->a, k=pWC->nTerm; k; k--, pTerm++){ if( pTerm->leftCursor==iCur && pTerm->u.leftColumn==iColumn ){ if( (pTerm->prereqRight & notReady)==0 && (pTerm->eOperator & op & WO_ALL)!=0 ){ if( iOrigCol>=0 && pIdx && (pTerm->eOperator & WO_ISNULL)==0 ){ CollSeq *pColl; char idxaff; pX = pTerm->pExpr; pParse = pWC->pParse; idxaff = pIdx->pTable->aCol[iOrigCol].affinity; if( !sqlite3IndexAffinityOk(pX, idxaff) ){ continue; } /* Figure out the collation sequence required from an index for ** it to be useful for optimising expression pX. Store this ** value in variable pColl. */ assert(pX->pLeft); pColl = sqlite3BinaryCompareCollSeq(pParse,pX->pLeft,pX->pRight); if( pColl==0 ) pColl = pParse->db->pDfltColl; for(j=0; pIdx->aiColumn[j]!=iOrigCol; j++){ if( NEVER(j>=pIdx->nColumn) ) return 0; } if( sqlite3StrICmp(pColl->zName, pIdx->azColl[j]) ){ continue; } } if( pTerm->prereqRight==0 ){ pResult = pTerm; goto findTerm_success; }else if( pResult==0 ){ pResult = pTerm; } } if( (pTerm->eOperator & WO_EQUIV)!=0 && nEquiv<ArraySize(aEquiv) ){ pX = sqlite3ExprSkipCollate(pTerm->pExpr->pRight); assert( pX->op==TK_COLUMN ); for(j=0; j<nEquiv; j+=2){ if( aEquiv[j]==pX->iTable && aEquiv[j+1]==pX->iColumn ) break; } if( j==nEquiv ){ aEquiv[j] = pX->iTable; aEquiv[j+1] = pX->iColumn; nEquiv += 2; } } } } } if( iEquiv>=nEquiv ) break; iCur = aEquiv[iEquiv++]; iColumn = aEquiv[iEquiv++]; } findTerm_success: return pResult; } /* Forward reference */ static void exprAnalyze(SrcList*, WhereClause*, int); /* ** Call exprAnalyze on all terms in a WHERE clause. |
︙ | ︙ | |||
103311 103312 103313 103314 103315 103316 103317 | ** (B) x=expr1 OR expr2=x OR x=expr3 ** (C) t1.x=t2.y OR (t1.x=t2.z AND t1.y=15) ** (D) x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*') ** (E) (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6) ** ** CASE 1: ** | | | 103888 103889 103890 103891 103892 103893 103894 103895 103896 103897 103898 103899 103900 103901 103902 | ** (B) x=expr1 OR expr2=x OR x=expr3 ** (C) t1.x=t2.y OR (t1.x=t2.z AND t1.y=15) ** (D) x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*') ** (E) (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6) ** ** CASE 1: ** ** If all subterms are of the form T.C=expr for some single column of C and ** a single table T (as shown in example B above) then create a new virtual ** term that is an equivalent IN expression. In other words, if the term ** being analyzed is: ** ** x = expr1 OR expr2 = x OR x = expr3 ** ** then create a new virtual term like this: |
︙ | ︙ | |||
103399 103400 103401 103402 103403 103404 103405 | if( db->mallocFailed ) return; assert( pOrWc->nTerm>=2 ); /* ** Compute the set of tables that might satisfy cases 1 or 2. */ indexable = ~(Bitmask)0; | | < | 103976 103977 103978 103979 103980 103981 103982 103983 103984 103985 103986 103987 103988 103989 103990 103991 103992 103993 | if( db->mallocFailed ) return; assert( pOrWc->nTerm>=2 ); /* ** Compute the set of tables that might satisfy cases 1 or 2. */ indexable = ~(Bitmask)0; chngToIN = ~(Bitmask)0; for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0 && indexable; i--, pOrTerm++){ if( (pOrTerm->eOperator & WO_SINGLE)==0 ){ WhereAndInfo *pAndInfo; assert( (pOrTerm->wtFlags & (TERM_ANDINFO|TERM_ORINFO))==0 ); chngToIN = 0; pAndInfo = sqlite3DbMallocRaw(db, sizeof(*pAndInfo)); if( pAndInfo ){ WhereClause *pAndWC; WhereTerm *pAndTerm; int j; |
︙ | ︙ | |||
103442 103443 103444 103445 103446 103447 103448 | Bitmask b; b = getMask(pMaskSet, pOrTerm->leftCursor); if( pOrTerm->wtFlags & TERM_VIRTUAL ){ WhereTerm *pOther = &pOrWc->a[pOrTerm->iParent]; b |= getMask(pMaskSet, pOther->leftCursor); } indexable &= b; | | | 104018 104019 104020 104021 104022 104023 104024 104025 104026 104027 104028 104029 104030 104031 104032 | Bitmask b; b = getMask(pMaskSet, pOrTerm->leftCursor); if( pOrTerm->wtFlags & TERM_VIRTUAL ){ WhereTerm *pOther = &pOrWc->a[pOrTerm->iParent]; b |= getMask(pMaskSet, pOther->leftCursor); } indexable &= b; if( (pOrTerm->eOperator & WO_EQ)==0 ){ chngToIN = 0; }else{ chngToIN &= b; } } } |
︙ | ︙ | |||
103493 103494 103495 103496 103497 103498 103499 | ** will be recorded in iCursor and iColumn. There might not be any ** such table and column. Set okToChngToIN if an appropriate table ** and column is found but leave okToChngToIN false if not found. */ for(j=0; j<2 && !okToChngToIN; j++){ pOrTerm = pOrWc->a; for(i=pOrWc->nTerm-1; i>=0; i--, pOrTerm++){ | | | 104069 104070 104071 104072 104073 104074 104075 104076 104077 104078 104079 104080 104081 104082 104083 | ** will be recorded in iCursor and iColumn. There might not be any ** such table and column. Set okToChngToIN if an appropriate table ** and column is found but leave okToChngToIN false if not found. */ for(j=0; j<2 && !okToChngToIN; j++){ pOrTerm = pOrWc->a; for(i=pOrWc->nTerm-1; i>=0; i--, pOrTerm++){ assert( pOrTerm->eOperator & WO_EQ ); pOrTerm->wtFlags &= ~TERM_OR_OK; if( pOrTerm->leftCursor==iCursor ){ /* This is the 2-bit case and we are on the second iteration and ** current term is from the first iteration. So skip this term. */ assert( j==1 ); continue; } |
︙ | ︙ | |||
103519 103520 103521 103522 103523 103524 103525 | iCursor = pOrTerm->leftCursor; break; } if( i<0 ){ /* No candidate table+column was found. This can only occur ** on the second iteration */ assert( j==1 ); | | | | 104095 104096 104097 104098 104099 104100 104101 104102 104103 104104 104105 104106 104107 104108 104109 104110 104111 104112 104113 104114 104115 104116 104117 104118 104119 | iCursor = pOrTerm->leftCursor; break; } if( i<0 ){ /* No candidate table+column was found. This can only occur ** on the second iteration */ assert( j==1 ); assert( IsPowerOfTwo(chngToIN) ); assert( chngToIN==getMask(pMaskSet, iCursor) ); break; } testcase( j==1 ); /* We have found a candidate table and column. Check to see if that ** table and column is common to every term in the OR clause */ okToChngToIN = 1; for(; i>=0 && okToChngToIN; i--, pOrTerm++){ assert( pOrTerm->eOperator & WO_EQ ); if( pOrTerm->leftCursor!=iCursor ){ pOrTerm->wtFlags &= ~TERM_OR_OK; }else if( pOrTerm->u.leftColumn!=iColumn ){ okToChngToIN = 0; }else{ int affLeft, affRight; /* If the right-hand side is also a column, then the affinities |
︙ | ︙ | |||
103565 103566 103567 103568 103569 103570 103571 | Expr *pDup; /* A transient duplicate expression */ ExprList *pList = 0; /* The RHS of the IN operator */ Expr *pLeft = 0; /* The LHS of the IN operator */ Expr *pNew; /* The complete IN operator */ for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0; i--, pOrTerm++){ if( (pOrTerm->wtFlags & TERM_OR_OK)==0 ) continue; | | | 104141 104142 104143 104144 104145 104146 104147 104148 104149 104150 104151 104152 104153 104154 104155 | Expr *pDup; /* A transient duplicate expression */ ExprList *pList = 0; /* The RHS of the IN operator */ Expr *pLeft = 0; /* The LHS of the IN operator */ Expr *pNew; /* The complete IN operator */ for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0; i--, pOrTerm++){ if( (pOrTerm->wtFlags & TERM_OR_OK)==0 ) continue; assert( pOrTerm->eOperator & WO_EQ ); assert( pOrTerm->leftCursor==iCursor ); assert( pOrTerm->u.leftColumn==iColumn ); pDup = sqlite3ExprDup(db, pOrTerm->pExpr->pRight, 0); pList = sqlite3ExprListAppend(pWC->pParse, pList, pDup); pLeft = pOrTerm->pExpr->pLeft; } assert( pLeft!=0 ); |
︙ | ︙ | |||
103594 103595 103596 103597 103598 103599 103600 | sqlite3ExprListDelete(db, pList); } pTerm->eOperator = WO_NOOP; /* case 1 trumps case 2 */ } } } #endif /* !SQLITE_OMIT_OR_OPTIMIZATION && !SQLITE_OMIT_SUBQUERY */ | < | 104170 104171 104172 104173 104174 104175 104176 104177 104178 104179 104180 104181 104182 104183 | sqlite3ExprListDelete(db, pList); } pTerm->eOperator = WO_NOOP; /* case 1 trumps case 2 */ } } } #endif /* !SQLITE_OMIT_OR_OPTIMIZATION && !SQLITE_OMIT_SUBQUERY */ /* ** The input to this routine is an WhereTerm structure with only the ** "pExpr" field filled in. The job of this routine is to analyze the ** subexpression and populate all the other fields of the WhereTerm ** structure. ** |
︙ | ︙ | |||
103637 103638 103639 103640 103641 103642 103643 | sqlite3 *db = pParse->db; /* Database connection */ if( db->mallocFailed ){ return; } pTerm = &pWC->a[idxTerm]; pMaskSet = pWC->pMaskSet; | | > | 104212 104213 104214 104215 104216 104217 104218 104219 104220 104221 104222 104223 104224 104225 104226 104227 | sqlite3 *db = pParse->db; /* Database connection */ if( db->mallocFailed ){ return; } pTerm = &pWC->a[idxTerm]; pMaskSet = pWC->pMaskSet; pExpr = pTerm->pExpr; assert( pExpr->op!=TK_AS && pExpr->op!=TK_COLLATE ); prereqLeft = exprTableUsage(pMaskSet, pExpr->pLeft); op = pExpr->op; if( op==TK_IN ){ assert( pExpr->pRight==0 ); if( ExprHasProperty(pExpr, EP_xIsSelect) ){ pTerm->prereqRight = exprSelectTableUsage(pMaskSet, pExpr->x.pSelect); }else{ |
︙ | ︙ | |||
103663 103664 103665 103666 103667 103668 103669 | extraRight = x-1; /* ON clause terms may not be used with an index ** on left table of a LEFT JOIN. Ticket #3015 */ } pTerm->prereqAll = prereqAll; pTerm->leftCursor = -1; pTerm->iParent = -1; pTerm->eOperator = 0; | | > | > > > > > > > > | | 104239 104240 104241 104242 104243 104244 104245 104246 104247 104248 104249 104250 104251 104252 104253 104254 104255 104256 104257 104258 104259 104260 104261 104262 104263 104264 104265 104266 104267 104268 104269 104270 104271 104272 104273 104274 104275 104276 104277 104278 104279 104280 104281 104282 104283 104284 104285 104286 104287 104288 104289 104290 104291 104292 104293 104294 104295 104296 104297 104298 | extraRight = x-1; /* ON clause terms may not be used with an index ** on left table of a LEFT JOIN. Ticket #3015 */ } pTerm->prereqAll = prereqAll; pTerm->leftCursor = -1; pTerm->iParent = -1; pTerm->eOperator = 0; if( allowedOp(op) ){ Expr *pLeft = sqlite3ExprSkipCollate(pExpr->pLeft); Expr *pRight = sqlite3ExprSkipCollate(pExpr->pRight); u16 opMask = (pTerm->prereqRight & prereqLeft)==0 ? WO_ALL : WO_EQUIV; if( pLeft->op==TK_COLUMN ){ pTerm->leftCursor = pLeft->iTable; pTerm->u.leftColumn = pLeft->iColumn; pTerm->eOperator = operatorMask(op) & opMask; } if( pRight && pRight->op==TK_COLUMN ){ WhereTerm *pNew; Expr *pDup; u16 eExtraOp = 0; /* Extra bits for pNew->eOperator */ if( pTerm->leftCursor>=0 ){ int idxNew; pDup = sqlite3ExprDup(db, pExpr, 0); if( db->mallocFailed ){ sqlite3ExprDelete(db, pDup); return; } idxNew = whereClauseInsert(pWC, pDup, TERM_VIRTUAL|TERM_DYNAMIC); if( idxNew==0 ) return; pNew = &pWC->a[idxNew]; pNew->iParent = idxTerm; pTerm = &pWC->a[idxTerm]; pTerm->nChild = 1; pTerm->wtFlags |= TERM_COPIED; if( pExpr->op==TK_EQ && !ExprHasProperty(pExpr, EP_FromJoin) && OptimizationEnabled(db, SQLITE_Transitive) ){ pTerm->eOperator |= WO_EQUIV; eExtraOp = WO_EQUIV; } }else{ pDup = pExpr; pNew = pTerm; } exprCommute(pParse, pDup); pLeft = sqlite3ExprSkipCollate(pDup->pLeft); pNew->leftCursor = pLeft->iTable; pNew->u.leftColumn = pLeft->iColumn; testcase( (prereqLeft | extraRight) != prereqLeft ); pNew->prereqRight = prereqLeft | extraRight; pNew->prereqAll = prereqAll; pNew->eOperator = (operatorMask(pDup->op) + eExtraOp) & opMask; } } #ifndef SQLITE_OMIT_BETWEEN_OPTIMIZATION /* If a term is the BETWEEN operator, create two new virtual terms ** that define the range that the BETWEEN implements. For example: ** |
︙ | ︙ | |||
104158 104159 104160 104161 104162 104163 104164 | } if( pWC->wctrlFlags & WHERE_AND_ONLY ){ return; } /* Search the WHERE clause terms for a usable WO_OR term. */ for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){ | | | | 104743 104744 104745 104746 104747 104748 104749 104750 104751 104752 104753 104754 104755 104756 104757 104758 104759 104760 104761 104762 104763 104764 104765 104766 104767 104768 104769 104770 104771 104772 104773 104774 104775 104776 104777 104778 | } if( pWC->wctrlFlags & WHERE_AND_ONLY ){ return; } /* Search the WHERE clause terms for a usable WO_OR term. */ for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){ if( (pTerm->eOperator & WO_OR)!=0 && ((pTerm->prereqAll & ~maskSrc) & p->notReady)==0 && (pTerm->u.pOrInfo->indexable & maskSrc)!=0 ){ WhereClause * const pOrWC = &pTerm->u.pOrInfo->wc; WhereTerm * const pOrWCEnd = &pOrWC->a[pOrWC->nTerm]; WhereTerm *pOrTerm; int flags = WHERE_MULTI_OR; double rTotal = 0; double nRow = 0; Bitmask used = 0; WhereBestIdx sBOI; sBOI = *p; sBOI.pOrderBy = 0; sBOI.pDistinct = 0; sBOI.ppIdxInfo = 0; for(pOrTerm=pOrWC->a; pOrTerm<pOrWCEnd; pOrTerm++){ WHERETRACE(("... Multi-index OR testing for term %d of %d....\n", (pOrTerm - pOrWC->a), (pTerm - pWC->a) )); if( (pOrTerm->eOperator& WO_AND)!=0 ){ sBOI.pWC = &pOrTerm->u.pAndInfo->wc; bestIndex(&sBOI); }else if( pOrTerm->leftCursor==iCur ){ WhereClause tempWC; tempWC.pParse = pWC->pParse; tempWC.pMaskSet = pWC->pMaskSet; tempWC.pOuter = pWC; |
︙ | ︙ | |||
104240 104241 104242 104243 104244 104245 104246 | static int termCanDriveIndex( WhereTerm *pTerm, /* WHERE clause term to check */ struct SrcList_item *pSrc, /* Table we are trying to access */ Bitmask notReady /* Tables in outer loops of the join */ ){ char aff; if( pTerm->leftCursor!=pSrc->iCursor ) return 0; | | | 104825 104826 104827 104828 104829 104830 104831 104832 104833 104834 104835 104836 104837 104838 104839 | static int termCanDriveIndex( WhereTerm *pTerm, /* WHERE clause term to check */ struct SrcList_item *pSrc, /* Table we are trying to access */ Bitmask notReady /* Tables in outer loops of the join */ ){ char aff; if( pTerm->leftCursor!=pSrc->iCursor ) return 0; if( (pTerm->eOperator & WO_EQ)==0 ) return 0; if( (pTerm->prereqRight & notReady)!=0 ) return 0; aff = pSrc->pTab->aCol[pTerm->u.leftColumn].affinity; if( !sqlite3IndexAffinityOk(pTerm->pExpr, aff) ) return 0; return 1; } #endif |
︙ | ︙ | |||
104502 104503 104504 104505 104506 104507 104508 | WHERETRACE(("Recomputing index info for %s...\n", pSrc->pTab->zName)); /* Count the number of possible WHERE clause constraints referring ** to this virtual table */ for(i=nTerm=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ if( pTerm->leftCursor != pSrc->iCursor ) continue; | | | | | | 105087 105088 105089 105090 105091 105092 105093 105094 105095 105096 105097 105098 105099 105100 105101 105102 105103 105104 | WHERETRACE(("Recomputing index info for %s...\n", pSrc->pTab->zName)); /* Count the number of possible WHERE clause constraints referring ** to this virtual table */ for(i=nTerm=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ if( pTerm->leftCursor != pSrc->iCursor ) continue; assert( IsPowerOfTwo(pTerm->eOperator & ~WO_EQUIV) ); testcase( pTerm->eOperator & WO_IN ); testcase( pTerm->eOperator & WO_ISNULL ); if( pTerm->eOperator & (WO_ISNULL) ) continue; if( pTerm->wtFlags & TERM_VNULL ) continue; nTerm++; } /* If the ORDER BY clause contains only columns in the current ** virtual table then allocate space for the aOrderBy part of ** the sqlite3_index_info structure. |
︙ | ︙ | |||
104553 104554 104555 104556 104557 104558 104559 104560 | *(int*)&pIdxInfo->nOrderBy = nOrderBy; *(struct sqlite3_index_constraint**)&pIdxInfo->aConstraint = pIdxCons; *(struct sqlite3_index_orderby**)&pIdxInfo->aOrderBy = pIdxOrderBy; *(struct sqlite3_index_constraint_usage**)&pIdxInfo->aConstraintUsage = pUsage; for(i=j=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ if( pTerm->leftCursor != pSrc->iCursor ) continue; | > | | | | > > | | | 105138 105139 105140 105141 105142 105143 105144 105145 105146 105147 105148 105149 105150 105151 105152 105153 105154 105155 105156 105157 105158 105159 105160 105161 105162 105163 105164 105165 105166 105167 105168 105169 105170 105171 105172 105173 | *(int*)&pIdxInfo->nOrderBy = nOrderBy; *(struct sqlite3_index_constraint**)&pIdxInfo->aConstraint = pIdxCons; *(struct sqlite3_index_orderby**)&pIdxInfo->aOrderBy = pIdxOrderBy; *(struct sqlite3_index_constraint_usage**)&pIdxInfo->aConstraintUsage = pUsage; for(i=j=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ u8 op; if( pTerm->leftCursor != pSrc->iCursor ) continue; assert( IsPowerOfTwo(pTerm->eOperator & ~WO_EQUIV) ); testcase( pTerm->eOperator & WO_IN ); testcase( pTerm->eOperator & WO_ISNULL ); if( pTerm->eOperator & (WO_ISNULL) ) continue; if( pTerm->wtFlags & TERM_VNULL ) continue; pIdxCons[j].iColumn = pTerm->u.leftColumn; pIdxCons[j].iTermOffset = i; op = (u8)pTerm->eOperator & WO_ALL; if( op==WO_IN ) op = WO_EQ; pIdxCons[j].op = op; /* The direct assignment in the previous line is possible only because ** the WO_ and SQLITE_INDEX_CONSTRAINT_ codes are identical. The ** following asserts verify this fact. */ assert( WO_EQ==SQLITE_INDEX_CONSTRAINT_EQ ); assert( WO_LT==SQLITE_INDEX_CONSTRAINT_LT ); assert( WO_LE==SQLITE_INDEX_CONSTRAINT_LE ); assert( WO_GT==SQLITE_INDEX_CONSTRAINT_GT ); assert( WO_GE==SQLITE_INDEX_CONSTRAINT_GE ); assert( WO_MATCH==SQLITE_INDEX_CONSTRAINT_MATCH ); assert( pTerm->eOperator & (WO_IN|WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE|WO_MATCH) ); j++; } for(i=0; i<nOrderBy; i++){ Expr *pExpr = pOrderBy->a[i].pExpr; pIdxOrderBy[i].iColumn = pExpr->iColumn; pIdxOrderBy[i].desc = pOrderBy->a[i].sortOrder; } |
︙ | ︙ | |||
104655 104656 104657 104658 104659 104660 104661 | WhereClause *pWC = p->pWC; /* The WHERE clause */ struct SrcList_item *pSrc = p->pSrc; /* The FROM clause term to search */ Table *pTab = pSrc->pTab; sqlite3_index_info *pIdxInfo; struct sqlite3_index_constraint *pIdxCons; struct sqlite3_index_constraint_usage *pUsage; WhereTerm *pTerm; | | > > | 105243 105244 105245 105246 105247 105248 105249 105250 105251 105252 105253 105254 105255 105256 105257 105258 105259 105260 | WhereClause *pWC = p->pWC; /* The WHERE clause */ struct SrcList_item *pSrc = p->pSrc; /* The FROM clause term to search */ Table *pTab = pSrc->pTab; sqlite3_index_info *pIdxInfo; struct sqlite3_index_constraint *pIdxCons; struct sqlite3_index_constraint_usage *pUsage; WhereTerm *pTerm; int i, j, k; int nOrderBy; int sortOrder; /* Sort order for IN clauses */ int bAllowIN; /* Allow IN optimizations */ double rCost; /* Make sure wsFlags is initialized to some sane value. Otherwise, if the ** malloc in allocateIndexInfo() fails and this function returns leaving ** wsFlags in an uninitialized state, the caller may behave unpredictably. */ memset(&p->cost, 0, sizeof(p->cost)); |
︙ | ︙ | |||
104691 104692 104693 104694 104695 104696 104697 | /* The module name must be defined. Also, by this point there must ** be a pointer to an sqlite3_vtab structure. Otherwise ** sqlite3ViewGetColumnNames() would have picked up the error. */ assert( pTab->azModuleArg && pTab->azModuleArg[0] ); assert( sqlite3GetVTable(pParse->db, pTab) ); | > > > > > > > > > > > | | | | | | | | | | | | | | | | | | | | | | | | | > > > | > > > | | | | | | | | | | | | | | | | | | | | > | | | > > | > > > > > > > | > > > > | | > > > > > > | 105281 105282 105283 105284 105285 105286 105287 105288 105289 105290 105291 105292 105293 105294 105295 105296 105297 105298 105299 105300 105301 105302 105303 105304 105305 105306 105307 105308 105309 105310 105311 105312 105313 105314 105315 105316 105317 105318 105319 105320 105321 105322 105323 105324 105325 105326 105327 105328 105329 105330 105331 105332 105333 105334 105335 105336 105337 105338 105339 105340 105341 105342 105343 105344 105345 105346 105347 105348 105349 105350 105351 105352 105353 105354 105355 105356 105357 105358 105359 105360 105361 105362 105363 105364 105365 105366 105367 105368 105369 105370 105371 105372 105373 105374 105375 105376 105377 105378 105379 105380 105381 105382 105383 105384 | /* The module name must be defined. Also, by this point there must ** be a pointer to an sqlite3_vtab structure. Otherwise ** sqlite3ViewGetColumnNames() would have picked up the error. */ assert( pTab->azModuleArg && pTab->azModuleArg[0] ); assert( sqlite3GetVTable(pParse->db, pTab) ); /* Try once or twice. On the first attempt, allow IN optimizations. ** If an IN optimization is accepted by the virtual table xBestIndex ** method, but the pInfo->aConstrainUsage.omit flag is not set, then ** the query will not work because it might allow duplicate rows in ** output. In that case, run the xBestIndex method a second time ** without the IN constraints. Usually this loop only runs once. ** The loop will exit using a "break" statement. */ for(bAllowIN=1; 1; bAllowIN--){ assert( bAllowIN==0 || bAllowIN==1 ); /* Set the aConstraint[].usable fields and initialize all ** output variables to zero. ** ** aConstraint[].usable is true for constraints where the right-hand ** side contains only references to tables to the left of the current ** table. In other words, if the constraint is of the form: ** ** column = expr ** ** and we are evaluating a join, then the constraint on column is ** only valid if all tables referenced in expr occur to the left ** of the table containing column. ** ** The aConstraints[] array contains entries for all constraints ** on the current table. That way we only have to compute it once ** even though we might try to pick the best index multiple times. ** For each attempt at picking an index, the order of tables in the ** join might be different so we have to recompute the usable flag ** each time. */ pIdxCons = *(struct sqlite3_index_constraint**)&pIdxInfo->aConstraint; pUsage = pIdxInfo->aConstraintUsage; for(i=0; i<pIdxInfo->nConstraint; i++, pIdxCons++){ j = pIdxCons->iTermOffset; pTerm = &pWC->a[j]; if( (pTerm->prereqRight&p->notReady)==0 && (bAllowIN || (pTerm->eOperator & WO_IN)==0) ){ pIdxCons->usable = 1; }else{ pIdxCons->usable = 0; } } memset(pUsage, 0, sizeof(pUsage[0])*pIdxInfo->nConstraint); if( pIdxInfo->needToFreeIdxStr ){ sqlite3_free(pIdxInfo->idxStr); } pIdxInfo->idxStr = 0; pIdxInfo->idxNum = 0; pIdxInfo->needToFreeIdxStr = 0; pIdxInfo->orderByConsumed = 0; /* ((double)2) In case of SQLITE_OMIT_FLOATING_POINT... */ pIdxInfo->estimatedCost = SQLITE_BIG_DBL / ((double)2); nOrderBy = pIdxInfo->nOrderBy; if( !p->pOrderBy ){ pIdxInfo->nOrderBy = 0; } if( vtabBestIndex(pParse, pTab, pIdxInfo) ){ return; } sortOrder = SQLITE_SO_ASC; pIdxCons = *(struct sqlite3_index_constraint**)&pIdxInfo->aConstraint; for(i=0; i<pIdxInfo->nConstraint; i++, pIdxCons++){ if( pUsage[i].argvIndex>0 ){ j = pIdxCons->iTermOffset; pTerm = &pWC->a[j]; p->cost.used |= pTerm->prereqRight; if( (pTerm->eOperator & WO_IN)!=0 ){ if( pUsage[i].omit==0 ){ /* Do not attempt to use an IN constraint if the virtual table ** says that the equivalent EQ constraint cannot be safely omitted. ** If we do attempt to use such a constraint, some rows might be ** repeated in the output. */ break; } for(k=0; k<pIdxInfo->nOrderBy; k++){ if( pIdxInfo->aOrderBy[k].iColumn==pIdxCons->iColumn ){ sortOrder = pIdxInfo->aOrderBy[k].desc; break; } } } } } if( i>=pIdxInfo->nConstraint ) break; } /* If there is an ORDER BY clause, and the selected virtual table index ** does not satisfy it, increase the cost of the scan accordingly. This ** matches the processing for non-virtual tables in bestBtreeIndex(). */ rCost = pIdxInfo->estimatedCost; if( p->pOrderBy && pIdxInfo->orderByConsumed==0 ){ rCost += estLog(rCost)*rCost; |
︙ | ︙ | |||
104767 104768 104769 104770 104771 104772 104773 | if( (SQLITE_BIG_DBL/((double)2))<rCost ){ p->cost.rCost = (SQLITE_BIG_DBL/((double)2)); }else{ p->cost.rCost = rCost; } p->cost.plan.u.pVtabIdx = pIdxInfo; if( pIdxInfo->orderByConsumed ){ | > | | 105394 105395 105396 105397 105398 105399 105400 105401 105402 105403 105404 105405 105406 105407 105408 105409 | if( (SQLITE_BIG_DBL/((double)2))<rCost ){ p->cost.rCost = (SQLITE_BIG_DBL/((double)2)); }else{ p->cost.rCost = rCost; } p->cost.plan.u.pVtabIdx = pIdxInfo; if( pIdxInfo->orderByConsumed ){ assert( sortOrder==0 || sortOrder==1 ); p->cost.plan.wsFlags |= WHERE_ORDERED + sortOrder*WHERE_REVERSE; p->cost.plan.nOBSat = nOrderBy; }else{ p->cost.plan.nOBSat = p->i ? p->aLevel[p->i-1].plan.nOBSat : 0; } p->cost.plan.nEq = 0; pIdxInfo->nOrderBy = nOrderBy; |
︙ | ︙ | |||
105038 105039 105040 105041 105042 105043 105044 | tRowcnt iUpper = p->aiRowEst[0]; tRowcnt a[2]; u8 aff = p->pTable->aCol[p->aiColumn[0]].affinity; if( pLower ){ Expr *pExpr = pLower->pExpr->pRight; rc = valueFromExpr(pParse, pExpr, aff, &pRangeVal); | | | | | | 105666 105667 105668 105669 105670 105671 105672 105673 105674 105675 105676 105677 105678 105679 105680 105681 105682 105683 105684 105685 105686 105687 105688 105689 105690 105691 105692 105693 105694 105695 105696 105697 | tRowcnt iUpper = p->aiRowEst[0]; tRowcnt a[2]; u8 aff = p->pTable->aCol[p->aiColumn[0]].affinity; if( pLower ){ Expr *pExpr = pLower->pExpr->pRight; rc = valueFromExpr(pParse, pExpr, aff, &pRangeVal); assert( (pLower->eOperator & (WO_GT|WO_GE))!=0 ); if( rc==SQLITE_OK && whereKeyStats(pParse, p, pRangeVal, 0, a)==SQLITE_OK ){ iLower = a[0]; if( (pLower->eOperator & WO_GT)!=0 ) iLower += a[1]; } sqlite3ValueFree(pRangeVal); } if( rc==SQLITE_OK && pUpper ){ Expr *pExpr = pUpper->pExpr->pRight; rc = valueFromExpr(pParse, pExpr, aff, &pRangeVal); assert( (pUpper->eOperator & (WO_LT|WO_LE))!=0 ); if( rc==SQLITE_OK && whereKeyStats(pParse, p, pRangeVal, 1, a)==SQLITE_OK ){ iUpper = a[0]; if( (pUpper->eOperator & WO_LE)!=0 ) iUpper += a[1]; } sqlite3ValueFree(pRangeVal); } if( rc==SQLITE_OK ){ if( iUpper<=iLower ){ *pRangeDiv = (double)p->aiRowEst[0]; }else{ |
︙ | ︙ | |||
105363 105364 105365 105366 105367 105368 105369 | /* If X is the column in the index and ORDER BY clause, check to see ** if there are any X= or X IS NULL constraints in the WHERE clause. */ pConstraint = findTerm(p->pWC, base, iColumn, p->notReady, WO_EQ|WO_ISNULL|WO_IN, pIdx); if( pConstraint==0 ){ isEq = 0; | | | < < < | | 105991 105992 105993 105994 105995 105996 105997 105998 105999 106000 106001 106002 106003 106004 106005 106006 106007 | /* If X is the column in the index and ORDER BY clause, check to see ** if there are any X= or X IS NULL constraints in the WHERE clause. */ pConstraint = findTerm(p->pWC, base, iColumn, p->notReady, WO_EQ|WO_ISNULL|WO_IN, pIdx); if( pConstraint==0 ){ isEq = 0; }else if( (pConstraint->eOperator & WO_IN)!=0 ){ isEq = 0; }else if( (pConstraint->eOperator & WO_ISNULL)!=0 ){ uniqueNotNull = 0; isEq = 1; /* "X IS NULL" means X has only a single value */ }else if( pConstraint->prereqRight==0 ){ isEq = 1; /* Constraint "X=constant" means X has only a single value */ }else{ Expr *pRight = pConstraint->pExpr->pRight; if( pRight->op==TK_COLUMN ){ |
︙ | ︙ | |||
105671 105672 105673 105674 105675 105676 105677 | /* If the index being considered is UNIQUE, and there is an equality ** constraint for all columns in the index, then this search will find ** at most a single row. In this case set the WHERE_UNIQUE flag to ** indicate this to the caller. ** ** Otherwise, if the search may find more than one row, test to see if | | | | 106296 106297 106298 106299 106300 106301 106302 106303 106304 106305 106306 106307 106308 106309 106310 106311 | /* If the index being considered is UNIQUE, and there is an equality ** constraint for all columns in the index, then this search will find ** at most a single row. In this case set the WHERE_UNIQUE flag to ** indicate this to the caller. ** ** Otherwise, if the search may find more than one row, test to see if ** there is a range constraint on indexed column (pc.plan.nEq+1) that ** can be optimized using the index. */ if( pc.plan.nEq==pProbe->nColumn && pProbe->onError!=OE_None ){ testcase( pc.plan.wsFlags & WHERE_COLUMN_IN ); testcase( pc.plan.wsFlags & WHERE_COLUMN_NULL ); if( (pc.plan.wsFlags & (WHERE_COLUMN_IN|WHERE_COLUMN_NULL))==0 ){ pc.plan.wsFlags |= WHERE_UNIQUE; if( p->i==0 || (p->aLevel[p->i-1].plan.wsFlags & WHERE_ALL_UNIQUE)!=0 ){ |
︙ | ︙ | |||
105718 105719 105720 105721 105722 105723 105724 | ** variable. */ if( bSort && (pSrc->jointype & JT_LEFT)==0 ){ int bRev = 2; WHERETRACE((" --> before isSortingIndex: nPriorSat=%d\n",nPriorSat)); pc.plan.nOBSat = isSortingIndex(p, pProbe, iCur, &bRev); WHERETRACE((" --> after isSortingIndex: bRev=%d nOBSat=%d\n", bRev, pc.plan.nOBSat)); | | | 106343 106344 106345 106346 106347 106348 106349 106350 106351 106352 106353 106354 106355 106356 106357 | ** variable. */ if( bSort && (pSrc->jointype & JT_LEFT)==0 ){ int bRev = 2; WHERETRACE((" --> before isSortingIndex: nPriorSat=%d\n",nPriorSat)); pc.plan.nOBSat = isSortingIndex(p, pProbe, iCur, &bRev); WHERETRACE((" --> after isSortingIndex: bRev=%d nOBSat=%d\n", bRev, pc.plan.nOBSat)); if( nPriorSat<pc.plan.nOBSat || (pc.plan.wsFlags & WHERE_ALL_UNIQUE)!=0 ){ pc.plan.wsFlags |= WHERE_ORDERED; } if( nOrderBy==pc.plan.nOBSat ){ bSort = 0; pc.plan.wsFlags |= WHERE_ROWID_RANGE|WHERE_COLUMN_RANGE; } if( bRev & 1 ) pc.plan.wsFlags |= WHERE_REVERSE; |
︙ | ︙ | |||
105781 105782 105783 105784 105785 105786 105787 | ** to get a better estimate on the number of rows based on ** VALUE and how common that value is according to the histogram. */ if( pc.plan.nRow>(double)1 && pc.plan.nEq==1 && pFirstTerm!=0 && aiRowEst[1]>1 ){ assert( (pFirstTerm->eOperator & (WO_EQ|WO_ISNULL|WO_IN))!=0 ); if( pFirstTerm->eOperator & (WO_EQ|WO_ISNULL) ){ | | | > | | 106406 106407 106408 106409 106410 106411 106412 106413 106414 106415 106416 106417 106418 106419 106420 106421 106422 106423 106424 106425 106426 | ** to get a better estimate on the number of rows based on ** VALUE and how common that value is according to the histogram. */ if( pc.plan.nRow>(double)1 && pc.plan.nEq==1 && pFirstTerm!=0 && aiRowEst[1]>1 ){ assert( (pFirstTerm->eOperator & (WO_EQ|WO_ISNULL|WO_IN))!=0 ); if( pFirstTerm->eOperator & (WO_EQ|WO_ISNULL) ){ testcase( pFirstTerm->eOperator & WO_EQ ); testcase( pFirstTerm->eOperator & WO_EQUIV ); testcase( pFirstTerm->eOperator & WO_ISNULL ); whereEqualScanEst(pParse, pProbe, pFirstTerm->pExpr->pRight, &pc.plan.nRow); }else if( bInEst==0 ){ assert( pFirstTerm->eOperator & WO_IN ); whereInScanEst(pParse, pProbe, pFirstTerm->pExpr->x.pList, &pc.plan.nRow); } } #endif /* SQLITE_ENABLE_STAT3 */ /* Adjust the number of output rows and downward to reflect rows |
︙ | ︙ | |||
105933 105934 105935 105936 105937 105938 105939 | ** set size by a factor of 3. Indexed range constraints reduce ** the search space by a larger factor: 4. We make indexed range ** more selective intentionally because of the subjective ** observation that indexed range constraints really are more ** selective in practice, on average. */ pc.plan.nRow /= 3; } | | | 106559 106560 106561 106562 106563 106564 106565 106566 106567 106568 106569 106570 106571 106572 106573 | ** set size by a factor of 3. Indexed range constraints reduce ** the search space by a larger factor: 4. We make indexed range ** more selective intentionally because of the subjective ** observation that indexed range constraints really are more ** selective in practice, on average. */ pc.plan.nRow /= 3; } }else if( (pTerm->eOperator & WO_NOOP)==0 ){ /* Any other expression lowers the output row count by half */ pc.plan.nRow /= 2; } } if( pc.plan.nRow<2 ) pc.plan.nRow = 2; } |
︙ | ︙ | |||
105985 105986 105987 105988 105989 105990 105991 | assert( p->pOrderBy || (p->cost.plan.wsFlags&WHERE_ORDERED)==0 ); assert( p->cost.plan.u.pIdx==0 || (p->cost.plan.wsFlags&WHERE_ROWID_EQ)==0 ); assert( pSrc->pIndex==0 || p->cost.plan.u.pIdx==0 || p->cost.plan.u.pIdx==pSrc->pIndex ); | | | > | 106611 106612 106613 106614 106615 106616 106617 106618 106619 106620 106621 106622 106623 106624 106625 106626 106627 | assert( p->pOrderBy || (p->cost.plan.wsFlags&WHERE_ORDERED)==0 ); assert( p->cost.plan.u.pIdx==0 || (p->cost.plan.wsFlags&WHERE_ROWID_EQ)==0 ); assert( pSrc->pIndex==0 || p->cost.plan.u.pIdx==0 || p->cost.plan.u.pIdx==pSrc->pIndex ); WHERETRACE((" best index is %s cost=%.1f\n", p->cost.plan.u.pIdx ? p->cost.plan.u.pIdx->zName : "ipk", p->cost.rCost)); bestOrClauseIndex(p); bestAutomaticIndex(p); p->cost.plan.wsFlags |= eqTermMask; } /* |
︙ | ︙ | |||
106011 106012 106013 106014 106015 106016 106017 | */ static void bestIndex(WhereBestIdx *p){ #ifndef SQLITE_OMIT_VIRTUALTABLE if( IsVirtual(p->pSrc->pTab) ){ sqlite3_index_info *pIdxInfo = 0; p->ppIdxInfo = &pIdxInfo; bestVirtualIndex(p); | > | | 106638 106639 106640 106641 106642 106643 106644 106645 106646 106647 106648 106649 106650 106651 106652 106653 | */ static void bestIndex(WhereBestIdx *p){ #ifndef SQLITE_OMIT_VIRTUALTABLE if( IsVirtual(p->pSrc->pTab) ){ sqlite3_index_info *pIdxInfo = 0; p->ppIdxInfo = &pIdxInfo; bestVirtualIndex(p); assert( pIdxInfo!=0 || p->pParse->db->mallocFailed ); if( pIdxInfo && pIdxInfo->needToFreeIdxStr ){ sqlite3_free(pIdxInfo->idxStr); } sqlite3DbFree(p->pParse->db, pIdxInfo); }else #endif { bestBtreeIndex(p); |
︙ | ︙ | |||
106135 106136 106137 106138 106139 106140 106141 106142 106143 106144 106145 106146 | iReg = iTarget; sqlite3VdbeAddOp2(v, OP_Null, 0, iReg); #ifndef SQLITE_OMIT_SUBQUERY }else{ int eType; int iTab; struct InLoop *pIn; assert( pX->op==TK_IN ); iReg = iTarget; eType = sqlite3FindInIndex(pParse, pX, 0); iTab = pX->iTable; | > | > | 106763 106764 106765 106766 106767 106768 106769 106770 106771 106772 106773 106774 106775 106776 106777 106778 106779 106780 106781 106782 106783 106784 106785 106786 106787 106788 106789 106790 106791 106792 106793 106794 106795 106796 106797 106798 106799 106800 106801 | iReg = iTarget; sqlite3VdbeAddOp2(v, OP_Null, 0, iReg); #ifndef SQLITE_OMIT_SUBQUERY }else{ int eType; int iTab; struct InLoop *pIn; u8 bRev = (pLevel->plan.wsFlags & WHERE_REVERSE)!=0; assert( pX->op==TK_IN ); iReg = iTarget; eType = sqlite3FindInIndex(pParse, pX, 0); iTab = pX->iTable; sqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iTab, 0); assert( pLevel->plan.wsFlags & WHERE_IN_ABLE ); if( pLevel->u.in.nIn==0 ){ pLevel->addrNxt = sqlite3VdbeMakeLabel(v); } pLevel->u.in.nIn++; pLevel->u.in.aInLoop = sqlite3DbReallocOrFree(pParse->db, pLevel->u.in.aInLoop, sizeof(pLevel->u.in.aInLoop[0])*pLevel->u.in.nIn); pIn = pLevel->u.in.aInLoop; if( pIn ){ pIn += pLevel->u.in.nIn - 1; pIn->iCur = iTab; if( eType==IN_INDEX_ROWID ){ pIn->addrInTop = sqlite3VdbeAddOp2(v, OP_Rowid, iTab, iReg); }else{ pIn->addrInTop = sqlite3VdbeAddOp3(v, OP_Column, iTab, 0, iReg); } pIn->eEndLoopOp = bRev ? OP_Prev : OP_Next; sqlite3VdbeAddOp1(v, OP_IsNull, iReg); }else{ pLevel->u.in.nIn = 0; } #endif } disableTerm(pLevel, pTerm); |
︙ | ︙ | |||
106512 106513 106514 106515 106516 106517 106518 106519 106520 106521 106522 106523 106524 106525 106526 106527 106528 106529 106530 | #ifndef SQLITE_OMIT_VIRTUALTABLE if( (pLevel->plan.wsFlags & WHERE_VIRTUALTABLE)!=0 ){ /* Case 0: The table is a virtual-table. Use the VFilter and VNext ** to access the data. */ int iReg; /* P3 Value for OP_VFilter */ sqlite3_index_info *pVtabIdx = pLevel->plan.u.pVtabIdx; int nConstraint = pVtabIdx->nConstraint; struct sqlite3_index_constraint_usage *aUsage = pVtabIdx->aConstraintUsage; const struct sqlite3_index_constraint *aConstraint = pVtabIdx->aConstraint; sqlite3ExprCachePush(pParse); iReg = sqlite3GetTempRange(pParse, nConstraint+2); for(j=1; j<=nConstraint; j++){ for(k=0; k<nConstraint; k++){ if( aUsage[k].argvIndex==j ){ | > > > | > > > > | > | | 107142 107143 107144 107145 107146 107147 107148 107149 107150 107151 107152 107153 107154 107155 107156 107157 107158 107159 107160 107161 107162 107163 107164 107165 107166 107167 107168 107169 107170 107171 107172 107173 107174 107175 107176 107177 107178 107179 107180 107181 107182 107183 107184 107185 | #ifndef SQLITE_OMIT_VIRTUALTABLE if( (pLevel->plan.wsFlags & WHERE_VIRTUALTABLE)!=0 ){ /* Case 0: The table is a virtual-table. Use the VFilter and VNext ** to access the data. */ int iReg; /* P3 Value for OP_VFilter */ int addrNotFound; sqlite3_index_info *pVtabIdx = pLevel->plan.u.pVtabIdx; int nConstraint = pVtabIdx->nConstraint; struct sqlite3_index_constraint_usage *aUsage = pVtabIdx->aConstraintUsage; const struct sqlite3_index_constraint *aConstraint = pVtabIdx->aConstraint; sqlite3ExprCachePush(pParse); iReg = sqlite3GetTempRange(pParse, nConstraint+2); addrNotFound = pLevel->addrBrk; for(j=1; j<=nConstraint; j++){ for(k=0; k<nConstraint; k++){ if( aUsage[k].argvIndex==j ){ int iTarget = iReg+j+1; pTerm = &pWC->a[aConstraint[k].iTermOffset]; if( pTerm->eOperator & WO_IN ){ codeEqualityTerm(pParse, pTerm, pLevel, iTarget); addrNotFound = pLevel->addrNxt; }else{ sqlite3ExprCode(pParse, pTerm->pExpr->pRight, iTarget); } break; } } if( k==nConstraint ) break; } sqlite3VdbeAddOp2(v, OP_Integer, pVtabIdx->idxNum, iReg); sqlite3VdbeAddOp2(v, OP_Integer, j-1, iReg+1); sqlite3VdbeAddOp4(v, OP_VFilter, iCur, addrNotFound, iReg, pVtabIdx->idxStr, pVtabIdx->needToFreeIdxStr ? P4_MPRINTF : P4_STATIC); pVtabIdx->needToFreeIdxStr = 0; for(j=0; j<nConstraint; j++){ if( aUsage[j].omit ){ int iTerm = aConstraint[j].iTermOffset; disableTerm(pLevel, &pWC->a[iTerm]); } |
︙ | ︙ | |||
106560 106561 106562 106563 106564 106565 106566 | ** we reference multiple rows using a "rowid IN (...)" ** construct. */ iReleaseReg = sqlite3GetTempReg(pParse); pTerm = findTerm(pWC, iCur, -1, notReady, WO_EQ|WO_IN, 0); assert( pTerm!=0 ); assert( pTerm->pExpr!=0 ); | < > | 107198 107199 107200 107201 107202 107203 107204 107205 107206 107207 107208 107209 107210 107211 107212 107213 107214 107215 107216 107217 107218 | ** we reference multiple rows using a "rowid IN (...)" ** construct. */ iReleaseReg = sqlite3GetTempReg(pParse); pTerm = findTerm(pWC, iCur, -1, notReady, WO_EQ|WO_IN, 0); assert( pTerm!=0 ); assert( pTerm->pExpr!=0 ); assert( omitTable==0 ); testcase( pTerm->wtFlags & TERM_VIRTUAL ); /* EV: R-30575-11662 */ iRowidReg = codeEqualityTerm(pParse, pTerm, pLevel, iReleaseReg); addrNxt = pLevel->addrNxt; sqlite3VdbeAddOp2(v, OP_MustBeInt, iRowidReg, addrNxt); sqlite3VdbeAddOp3(v, OP_NotExists, iCur, addrNxt, iRowidReg); sqlite3ExprCacheAffinityChange(pParse, iRowidReg, 1); sqlite3ExprCacheStore(pParse, iCur, -1, iRowidReg); VdbeComment((v, "pk")); pLevel->op = OP_Noop; }else if( pLevel->plan.wsFlags & WHERE_ROWID_RANGE ){ /* Case 2: We have an inequality comparison against the ROWID field. */ int testOp = OP_Noop; |
︙ | ︙ | |||
106951 106952 106953 106954 106955 106956 106957 | int iRetInit; /* Address of regReturn init */ int untestedTerms = 0; /* Some terms not completely tested */ int ii; /* Loop counter */ Expr *pAndExpr = 0; /* An ".. AND (...)" expression */ pTerm = pLevel->plan.u.pTerm; assert( pTerm!=0 ); | | | 107589 107590 107591 107592 107593 107594 107595 107596 107597 107598 107599 107600 107601 107602 107603 | int iRetInit; /* Address of regReturn init */ int untestedTerms = 0; /* Some terms not completely tested */ int ii; /* Loop counter */ Expr *pAndExpr = 0; /* An ".. AND (...)" expression */ pTerm = pLevel->plan.u.pTerm; assert( pTerm!=0 ); assert( pTerm->eOperator & WO_OR ); assert( (pTerm->wtFlags & TERM_ORINFO)!=0 ); pOrWc = &pTerm->u.pOrInfo->wc; pLevel->op = OP_Return; pLevel->p1 = regReturn; /* Set up a new SrcList in pOrTab containing the table being scanned ** by this loop in the a[0] slot and all notReady tables in a[1..] slots. |
︙ | ︙ | |||
107024 107025 107026 107027 107028 107029 107030 | if( pAndExpr ){ pAndExpr = sqlite3PExpr(pParse, TK_AND, 0, pAndExpr, 0); } } for(ii=0; ii<pOrWc->nTerm; ii++){ WhereTerm *pOrTerm = &pOrWc->a[ii]; | | | 107662 107663 107664 107665 107666 107667 107668 107669 107670 107671 107672 107673 107674 107675 107676 | if( pAndExpr ){ pAndExpr = sqlite3PExpr(pParse, TK_AND, 0, pAndExpr, 0); } } for(ii=0; ii<pOrWc->nTerm; ii++){ WhereTerm *pOrTerm = &pOrWc->a[ii]; if( pOrTerm->leftCursor==iCur || (pOrTerm->eOperator & WO_AND)!=0 ){ WhereInfo *pSubWInfo; /* Info for single OR-term scan */ Expr *pOrExpr = pOrTerm->pExpr; if( pAndExpr ){ pAndExpr->pLeft = pOrExpr; pOrExpr = pAndExpr; } /* Loop through table entries that match term pOrTerm. */ |
︙ | ︙ | |||
107402 107403 107404 107405 107406 107407 107408 | ** the bitmask for all FROM clause terms to the left of the N-th term ** is (X-1). An expression from the ON clause of a LEFT JOIN can use ** its Expr.iRightJoinTable value to find the bitmask of the right table ** of the join. Subtracting one from the right table bitmask gives a ** bitmask for all tables to the left of the join. Knowing the bitmask ** for all tables to the left of a left join is important. Ticket #3015. ** | < < < < < < < < < < < | 108040 108041 108042 108043 108044 108045 108046 108047 108048 108049 108050 108051 108052 108053 108054 108055 108056 108057 108058 108059 108060 | ** the bitmask for all FROM clause terms to the left of the N-th term ** is (X-1). An expression from the ON clause of a LEFT JOIN can use ** its Expr.iRightJoinTable value to find the bitmask of the right table ** of the join. Subtracting one from the right table bitmask gives a ** bitmask for all tables to the left of the join. Knowing the bitmask ** for all tables to the left of a left join is important. Ticket #3015. ** ** Note that bitmasks are created for all pTabList->nSrc tables in ** pTabList, not just the first nTabList tables. nTabList is normally ** equal to pTabList->nSrc but might be shortened to 1 if the ** WHERE_ONETABLE_ONLY flag is set. */ for(ii=0; ii<pTabList->nSrc; ii++){ createMask(pMaskSet, pTabList->a[ii].iCursor); } #ifndef NDEBUG { Bitmask toTheLeft = 0; for(ii=0; ii<pTabList->nSrc; ii++){ Bitmask m = getMask(pMaskSet, pTabList->a[ii].iCursor); assert( (m-1)==toTheLeft ); |
︙ | ︙ | |||
107479 107480 107481 107482 107483 107484 107485 107486 107487 107488 107489 107490 107491 107492 | for(sWBI.i=iFrom=0, pLevel=pWInfo->a; sWBI.i<nTabList; sWBI.i++, pLevel++){ WhereCost bestPlan; /* Most efficient plan seen so far */ Index *pIdx; /* Index for FROM table at pTabItem */ int j; /* For looping over FROM tables */ int bestJ = -1; /* The value of j */ Bitmask m; /* Bitmask value for j or bestJ */ int isOptimal; /* Iterator for optimal/non-optimal search */ int nUnconstrained; /* Number tables without INDEXED BY */ Bitmask notIndexed; /* Mask of tables that cannot use an index */ memset(&bestPlan, 0, sizeof(bestPlan)); bestPlan.rCost = SQLITE_BIG_DBL; WHERETRACE(("*** Begin search for loop %d ***\n", sWBI.i)); | > | 108106 108107 108108 108109 108110 108111 108112 108113 108114 108115 108116 108117 108118 108119 108120 | for(sWBI.i=iFrom=0, pLevel=pWInfo->a; sWBI.i<nTabList; sWBI.i++, pLevel++){ WhereCost bestPlan; /* Most efficient plan seen so far */ Index *pIdx; /* Index for FROM table at pTabItem */ int j; /* For looping over FROM tables */ int bestJ = -1; /* The value of j */ Bitmask m; /* Bitmask value for j or bestJ */ int isOptimal; /* Iterator for optimal/non-optimal search */ int ckOptimal; /* Do the optimal scan check */ int nUnconstrained; /* Number tables without INDEXED BY */ Bitmask notIndexed; /* Mask of tables that cannot use an index */ memset(&bestPlan, 0, sizeof(bestPlan)); bestPlan.rCost = SQLITE_BIG_DBL; WHERETRACE(("*** Begin search for loop %d ***\n", sWBI.i)); |
︙ | ︙ | |||
107513 107514 107515 107516 107517 107518 107519 | ** that do not use indices. But this nRow reduction only happens if the ** table really is the innermost join. ** ** The second loop iteration is only performed if no optimal scan ** strategies were found by the first iteration. This second iteration ** is used to search for the lowest cost scan overall. ** | | < < | | > > > > > > < < < < > > > > > > > > > > > > > > > > > > > > > > | 108141 108142 108143 108144 108145 108146 108147 108148 108149 108150 108151 108152 108153 108154 108155 108156 108157 108158 108159 108160 108161 108162 108163 108164 108165 108166 108167 108168 108169 108170 108171 108172 108173 108174 108175 108176 108177 108178 108179 108180 108181 108182 108183 108184 108185 108186 108187 108188 108189 108190 108191 108192 108193 108194 108195 108196 108197 108198 108199 108200 108201 108202 108203 108204 | ** that do not use indices. But this nRow reduction only happens if the ** table really is the innermost join. ** ** The second loop iteration is only performed if no optimal scan ** strategies were found by the first iteration. This second iteration ** is used to search for the lowest cost scan overall. ** ** Without the optimal scan step (the first iteration) a suboptimal ** plan might be chosen for queries like this: ** ** CREATE TABLE t1(a, b); ** CREATE TABLE t2(c, d); ** SELECT * FROM t2, t1 WHERE t2.rowid = t1.a; ** ** The best strategy is to iterate through table t1 first. However it ** is not possible to determine this with a simple greedy algorithm. ** Since the cost of a linear scan through table t2 is the same ** as the cost of a linear scan through table t1, a simple greedy ** algorithm may choose to use t2 for the outer loop, which is a much ** costlier approach. */ nUnconstrained = 0; notIndexed = 0; /* The optimal scan check only occurs if there are two or more tables ** available to be reordered */ if( iFrom==nTabList-1 ){ ckOptimal = 0; /* Common case of just one table in the FROM clause */ }else{ ckOptimal = -1; for(j=iFrom, sWBI.pSrc=&pTabList->a[j]; j<nTabList; j++, sWBI.pSrc++){ m = getMask(pMaskSet, sWBI.pSrc->iCursor); if( (m & sWBI.notValid)==0 ){ if( j==iFrom ) iFrom++; continue; } if( j>iFrom && (sWBI.pSrc->jointype & (JT_LEFT|JT_CROSS))!=0 ) break; if( ++ckOptimal ) break; if( (sWBI.pSrc->jointype & JT_LEFT)!=0 ) break; } } assert( ckOptimal==0 || ckOptimal==1 ); for(isOptimal=ckOptimal; isOptimal>=0 && bestJ<0; isOptimal--){ for(j=iFrom, sWBI.pSrc=&pTabList->a[j]; j<nTabList; j++, sWBI.pSrc++){ if( j>iFrom && (sWBI.pSrc->jointype & (JT_LEFT|JT_CROSS))!=0 ){ /* This break and one like it in the ckOptimal computation loop ** above prevent table reordering across LEFT and CROSS JOINs. ** The LEFT JOIN case is necessary for correctness. The prohibition ** against reordering across a CROSS JOIN is an SQLite feature that ** allows the developer to control table reordering */ break; } m = getMask(pMaskSet, sWBI.pSrc->iCursor); if( (m & sWBI.notValid)==0 ){ assert( j>iFrom ); continue; } sWBI.notReady = (isOptimal ? m : sWBI.notValid); if( sWBI.pSrc->pIndex==0 ) nUnconstrained++; WHERETRACE((" === trying table %d (%s) with isOptimal=%d ===\n", j, sWBI.pSrc->pTab->zName, isOptimal)); assert( sWBI.pSrc->pTab ); |
︙ | ︙ | |||
107570 107571 107572 107573 107574 107575 107576 | || sWBI.cost.plan.u.pIdx==sWBI.pSrc->pIndex ); if( isOptimal && (sWBI.cost.plan.wsFlags & WHERE_NOT_FULLSCAN)==0 ){ notIndexed |= m; } if( isOptimal ){ pWInfo->a[j].rOptCost = sWBI.cost.rCost; | | | | 108220 108221 108222 108223 108224 108225 108226 108227 108228 108229 108230 108231 108232 108233 108234 108235 | || sWBI.cost.plan.u.pIdx==sWBI.pSrc->pIndex ); if( isOptimal && (sWBI.cost.plan.wsFlags & WHERE_NOT_FULLSCAN)==0 ){ notIndexed |= m; } if( isOptimal ){ pWInfo->a[j].rOptCost = sWBI.cost.rCost; }else if( ckOptimal ){ /* If two or more tables have nearly the same outer loop cost, but ** very different inner loop (optimal) cost, we want to choose ** for the outer loop that table which benefits the least from ** being in the inner loop. The following code scales the ** outer loop cost estimate to accomplish that. */ WHERETRACE((" scaling cost from %.1f to %.1f\n", sWBI.cost.rCost, sWBI.cost.rCost/pWInfo->a[j].rOptCost)); |
︙ | ︙ | |||
107616 107617 107618 107619 107620 107621 107622 | " cost=%.1f, nRow=%.1f, nOBSat=%d, wsFlags=%08x\n", j, sWBI.pSrc->pTab->zName, sWBI.cost.rCost, sWBI.cost.plan.nRow, sWBI.cost.plan.nOBSat, sWBI.cost.plan.wsFlags)); bestPlan = sWBI.cost; bestJ = j; } | | > > > > > > > > | 108266 108267 108268 108269 108270 108271 108272 108273 108274 108275 108276 108277 108278 108279 108280 108281 108282 108283 108284 108285 108286 108287 108288 108289 108290 108291 108292 | " cost=%.1f, nRow=%.1f, nOBSat=%d, wsFlags=%08x\n", j, sWBI.pSrc->pTab->zName, sWBI.cost.rCost, sWBI.cost.plan.nRow, sWBI.cost.plan.nOBSat, sWBI.cost.plan.wsFlags)); bestPlan = sWBI.cost; bestJ = j; } /* In a join like "w JOIN x LEFT JOIN y JOIN z" make sure that ** table y (and not table z) is always the next inner loop inside ** of table x. */ if( (sWBI.pSrc->jointype & JT_LEFT)!=0 ) break; } } assert( bestJ>=0 ); assert( sWBI.notValid & getMask(pMaskSet, pTabList->a[bestJ].iCursor) ); assert( bestJ==iFrom || (pTabList->a[iFrom].jointype & JT_LEFT)==0 ); testcase( bestJ>iFrom && (pTabList->a[iFrom].jointype & JT_CROSS)!=0 ); testcase( bestJ>iFrom && bestJ<nTabList-1 && (pTabList->a[bestJ+1].jointype & JT_LEFT)!=0 ); WHERETRACE(("*** Optimizer selects table %d (%s) for loop %d with:\n" " cost=%.1f, nRow=%.1f, nOBSat=%d, wsFlags=0x%08x\n", bestJ, pTabList->a[bestJ].pTab->zName, pLevel-pWInfo->a, bestPlan.rCost, bestPlan.plan.nRow, bestPlan.plan.nOBSat, bestPlan.plan.wsFlags)); if( (bestPlan.plan.wsFlags & WHERE_DISTINCT)!=0 ){ assert( pWInfo->eDistinct==0 ); |
︙ | ︙ | |||
107872 107873 107874 107875 107876 107877 107878 | } if( pLevel->plan.wsFlags & WHERE_IN_ABLE && pLevel->u.in.nIn>0 ){ struct InLoop *pIn; int j; sqlite3VdbeResolveLabel(v, pLevel->addrNxt); for(j=pLevel->u.in.nIn, pIn=&pLevel->u.in.aInLoop[j-1]; j>0; j--, pIn--){ sqlite3VdbeJumpHere(v, pIn->addrInTop+1); | | | 108530 108531 108532 108533 108534 108535 108536 108537 108538 108539 108540 108541 108542 108543 108544 | } if( pLevel->plan.wsFlags & WHERE_IN_ABLE && pLevel->u.in.nIn>0 ){ struct InLoop *pIn; int j; sqlite3VdbeResolveLabel(v, pLevel->addrNxt); for(j=pLevel->u.in.nIn, pIn=&pLevel->u.in.aInLoop[j-1]; j>0; j--, pIn--){ sqlite3VdbeJumpHere(v, pIn->addrInTop+1); sqlite3VdbeAddOp2(v, pIn->eEndLoopOp, pIn->iCur, pIn->addrInTop); sqlite3VdbeJumpHere(v, pIn->addrInTop-1); } sqlite3DbFree(db, pLevel->u.in.aInLoop); } sqlite3VdbeResolveLabel(v, pLevel->addrBrk); if( pLevel->iLeftJoin ){ int addr; |
︙ | ︙ | |||
108180 108181 108182 108183 108184 108185 108186 108187 108188 108189 108190 108191 108192 108193 | sqlite3ParserTOKENTYPE yy0; struct LimitVal yy64; Expr* yy122; Select* yy159; IdList* yy180; struct {int value; int mask;} yy207; u8 yy258; struct LikeOp yy318; TriggerStep* yy327; ExprSpan yy342; SrcList* yy347; int yy392; struct TrigEvent yy410; ExprList* yy442; | > | 108838 108839 108840 108841 108842 108843 108844 108845 108846 108847 108848 108849 108850 108851 108852 | sqlite3ParserTOKENTYPE yy0; struct LimitVal yy64; Expr* yy122; Select* yy159; IdList* yy180; struct {int value; int mask;} yy207; u8 yy258; u16 yy305; struct LikeOp yy318; TriggerStep* yy327; ExprSpan yy342; SrcList* yy347; int yy392; struct TrigEvent yy410; ExprList* yy442; |
︙ | ︙ | |||
110130 110131 110132 110133 110134 110135 110136 | case 31: /* temp ::= */ yytestcase(yyruleno==31); case 69: /* autoinc ::= */ yytestcase(yyruleno==69); case 82: /* defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */ yytestcase(yyruleno==82); case 84: /* init_deferred_pred_opt ::= */ yytestcase(yyruleno==84); case 86: /* init_deferred_pred_opt ::= INITIALLY IMMEDIATE */ yytestcase(yyruleno==86); case 98: /* defer_subclause_opt ::= */ yytestcase(yyruleno==98); case 109: /* ifexists ::= */ yytestcase(yyruleno==109); | < < < | 110789 110790 110791 110792 110793 110794 110795 110796 110797 110798 110799 110800 110801 110802 110803 110804 110805 110806 110807 110808 110809 110810 110811 | case 31: /* temp ::= */ yytestcase(yyruleno==31); case 69: /* autoinc ::= */ yytestcase(yyruleno==69); case 82: /* defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */ yytestcase(yyruleno==82); case 84: /* init_deferred_pred_opt ::= */ yytestcase(yyruleno==84); case 86: /* init_deferred_pred_opt ::= INITIALLY IMMEDIATE */ yytestcase(yyruleno==86); case 98: /* defer_subclause_opt ::= */ yytestcase(yyruleno==98); case 109: /* ifexists ::= */ yytestcase(yyruleno==109); case 221: /* between_op ::= BETWEEN */ yytestcase(yyruleno==221); case 224: /* in_op ::= IN */ yytestcase(yyruleno==224); {yygotominor.yy392 = 0;} break; case 29: /* ifnotexists ::= IF NOT EXISTS */ case 30: /* temp ::= TEMP */ yytestcase(yyruleno==30); case 70: /* autoinc ::= AUTOINCR */ yytestcase(yyruleno==70); case 85: /* init_deferred_pred_opt ::= INITIALLY DEFERRED */ yytestcase(yyruleno==85); case 108: /* ifexists ::= IF EXISTS */ yytestcase(yyruleno==108); case 222: /* between_op ::= NOT BETWEEN */ yytestcase(yyruleno==222); case 225: /* in_op ::= NOT IN */ yytestcase(yyruleno==225); {yygotominor.yy392 = 1;} break; case 32: /* create_table_args ::= LP columnlist conslist_opt RP */ { sqlite3EndTable(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0,0); |
︙ | ︙ | |||
110381 110382 110383 110384 110385 110386 110387 | } break; case 116: /* multiselect_op ::= UNION ALL */ {yygotominor.yy392 = TK_ALL;} break; case 118: /* oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt */ { | | > > > > > > > | 111037 111038 111039 111040 111041 111042 111043 111044 111045 111046 111047 111048 111049 111050 111051 111052 111053 111054 111055 111056 111057 111058 111059 | } break; case 116: /* multiselect_op ::= UNION ALL */ {yygotominor.yy392 = TK_ALL;} break; case 118: /* oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt */ { yygotominor.yy159 = sqlite3SelectNew(pParse,yymsp[-6].minor.yy442,yymsp[-5].minor.yy347,yymsp[-4].minor.yy122,yymsp[-3].minor.yy442,yymsp[-2].minor.yy122,yymsp[-1].minor.yy442,yymsp[-7].minor.yy305,yymsp[0].minor.yy64.pLimit,yymsp[0].minor.yy64.pOffset); } break; case 119: /* distinct ::= DISTINCT */ {yygotominor.yy305 = SF_Distinct;} break; case 120: /* distinct ::= ALL */ case 121: /* distinct ::= */ yytestcase(yyruleno==121); {yygotominor.yy305 = 0;} break; case 122: /* sclp ::= selcollist COMMA */ case 246: /* idxlist_opt ::= LP idxlist RP */ yytestcase(yyruleno==246); {yygotominor.yy442 = yymsp[-1].minor.yy442;} break; case 123: /* sclp ::= */ case 151: /* orderby_opt ::= */ yytestcase(yyruleno==151); |
︙ | ︙ | |||
110452 110453 110454 110455 110456 110457 110458 110459 110460 110461 | yygotominor.yy347 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy347,0,0,&yymsp[-2].minor.yy0,yymsp[-4].minor.yy159,yymsp[-1].minor.yy122,yymsp[0].minor.yy180); } break; case 136: /* seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */ { if( yymsp[-6].minor.yy347==0 && yymsp[-2].minor.yy0.n==0 && yymsp[-1].minor.yy122==0 && yymsp[0].minor.yy180==0 ){ yygotominor.yy347 = yymsp[-4].minor.yy347; }else{ Select *pSubquery; sqlite3SrcListShiftJoinType(yymsp[-4].minor.yy347); | > > > > > > > > > > | | 111115 111116 111117 111118 111119 111120 111121 111122 111123 111124 111125 111126 111127 111128 111129 111130 111131 111132 111133 111134 111135 111136 111137 111138 111139 111140 111141 111142 | yygotominor.yy347 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy347,0,0,&yymsp[-2].minor.yy0,yymsp[-4].minor.yy159,yymsp[-1].minor.yy122,yymsp[0].minor.yy180); } break; case 136: /* seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */ { if( yymsp[-6].minor.yy347==0 && yymsp[-2].minor.yy0.n==0 && yymsp[-1].minor.yy122==0 && yymsp[0].minor.yy180==0 ){ yygotominor.yy347 = yymsp[-4].minor.yy347; }else if( yymsp[-4].minor.yy347->nSrc==1 ){ yygotominor.yy347 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy347,0,0,&yymsp[-2].minor.yy0,0,yymsp[-1].minor.yy122,yymsp[0].minor.yy180); if( yygotominor.yy347 ){ struct SrcList_item *pNew = &yygotominor.yy347->a[yygotominor.yy347->nSrc-1]; struct SrcList_item *pOld = yymsp[-4].minor.yy347->a; pNew->zName = pOld->zName; pNew->zDatabase = pOld->zDatabase; pOld->zName = pOld->zDatabase = 0; } sqlite3SrcListDelete(pParse->db, yymsp[-4].minor.yy347); }else{ Select *pSubquery; sqlite3SrcListShiftJoinType(yymsp[-4].minor.yy347); pSubquery = sqlite3SelectNew(pParse,0,yymsp[-4].minor.yy347,0,0,0,0,SF_NestedFrom,0,0); yygotominor.yy347 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy347,0,0,&yymsp[-2].minor.yy0,pSubquery,yymsp[-1].minor.yy122,yymsp[0].minor.yy180); } } break; case 137: /* dbnm ::= */ case 146: /* indexed_opt ::= */ yytestcase(yyruleno==146); {yygotominor.yy0.z=0; yygotominor.yy0.n=0;} |
︙ | ︙ | |||
110688 110689 110690 110691 110692 110693 110694 | case 196: /* expr ::= ID LP distinct exprlist RP */ { if( yymsp[-1].minor.yy442 && yymsp[-1].minor.yy442->nExpr>pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] ){ sqlite3ErrorMsg(pParse, "too many arguments on function %T", &yymsp[-4].minor.yy0); } yygotominor.yy342.pExpr = sqlite3ExprFunction(pParse, yymsp[-1].minor.yy442, &yymsp[-4].minor.yy0); spanSet(&yygotominor.yy342,&yymsp[-4].minor.yy0,&yymsp[0].minor.yy0); | | | 111361 111362 111363 111364 111365 111366 111367 111368 111369 111370 111371 111372 111373 111374 111375 | case 196: /* expr ::= ID LP distinct exprlist RP */ { if( yymsp[-1].minor.yy442 && yymsp[-1].minor.yy442->nExpr>pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] ){ sqlite3ErrorMsg(pParse, "too many arguments on function %T", &yymsp[-4].minor.yy0); } yygotominor.yy342.pExpr = sqlite3ExprFunction(pParse, yymsp[-1].minor.yy442, &yymsp[-4].minor.yy0); spanSet(&yygotominor.yy342,&yymsp[-4].minor.yy0,&yymsp[0].minor.yy0); if( yymsp[-2].minor.yy305 && yygotominor.yy342.pExpr ){ yygotominor.yy342.pExpr->flags |= EP_Distinct; } } break; case 197: /* expr ::= ID LP STAR RP */ { yygotominor.yy342.pExpr = sqlite3ExprFunction(pParse, 0, &yymsp[-3].minor.yy0); |
︙ | ︙ | |||
113623 113624 113625 113626 113627 113628 113629 | sqlite3BtreeRollback(p, tripCode); db->aDb[i].inTrans = 0; } } sqlite3VtabRollback(db); sqlite3EndBenignMalloc(); | | | 114296 114297 114298 114299 114300 114301 114302 114303 114304 114305 114306 114307 114308 114309 114310 | sqlite3BtreeRollback(p, tripCode); db->aDb[i].inTrans = 0; } } sqlite3VtabRollback(db); sqlite3EndBenignMalloc(); if( (db->flags&SQLITE_InternChanges)!=0 && db->init.busy==0 ){ sqlite3ExpirePreparedStatements(db); sqlite3ResetAllSchemasOfConnection(db); } /* Any deferred constraint violations have now been resolved. */ db->nDeferredCons = 0; |
︙ | ︙ | |||
136335 136336 136337 136338 136339 136340 136341 | ** This ensures that each node is stored on a single database page. If the ** database page-size is so large that more than RTREE_MAXCELLS entries ** would fit in a single node, use a smaller node-size. */ static int getNodeSize( sqlite3 *db, /* Database handle */ Rtree *pRtree, /* Rtree handle */ | | > > > > > > | 137008 137009 137010 137011 137012 137013 137014 137015 137016 137017 137018 137019 137020 137021 137022 137023 137024 137025 137026 137027 137028 137029 137030 137031 137032 137033 137034 137035 137036 137037 137038 137039 137040 137041 137042 137043 137044 137045 137046 137047 | ** This ensures that each node is stored on a single database page. If the ** database page-size is so large that more than RTREE_MAXCELLS entries ** would fit in a single node, use a smaller node-size. */ static int getNodeSize( sqlite3 *db, /* Database handle */ Rtree *pRtree, /* Rtree handle */ int isCreate, /* True for xCreate, false for xConnect */ char **pzErr /* OUT: Error message, if any */ ){ int rc; char *zSql; if( isCreate ){ int iPageSize = 0; zSql = sqlite3_mprintf("PRAGMA %Q.page_size", pRtree->zDb); rc = getIntFromStmt(db, zSql, &iPageSize); if( rc==SQLITE_OK ){ pRtree->iNodeSize = iPageSize-64; if( (4+pRtree->nBytesPerCell*RTREE_MAXCELLS)<pRtree->iNodeSize ){ pRtree->iNodeSize = 4+pRtree->nBytesPerCell*RTREE_MAXCELLS; } }else{ *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db)); } }else{ zSql = sqlite3_mprintf( "SELECT length(data) FROM '%q'.'%q_node' WHERE nodeno = 1", pRtree->zDb, pRtree->zName ); rc = getIntFromStmt(db, zSql, &pRtree->iNodeSize); if( rc!=SQLITE_OK ){ *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db)); } } sqlite3_free(zSql); return rc; } /* |
︙ | ︙ | |||
136418 136419 136420 136421 136422 136423 136424 | pRtree->nDim = (argc-4)/2; pRtree->nBytesPerCell = 8 + pRtree->nDim*4*2; pRtree->eCoordType = eCoordType; memcpy(pRtree->zDb, argv[1], nDb); memcpy(pRtree->zName, argv[2], nName); /* Figure out the node size to use. */ | | | 137097 137098 137099 137100 137101 137102 137103 137104 137105 137106 137107 137108 137109 137110 137111 | pRtree->nDim = (argc-4)/2; pRtree->nBytesPerCell = 8 + pRtree->nDim*4*2; pRtree->eCoordType = eCoordType; memcpy(pRtree->zDb, argv[1], nDb); memcpy(pRtree->zName, argv[2], nName); /* Figure out the node size to use. */ rc = getNodeSize(db, pRtree, isCreate, pzErr); /* Create/Connect to the underlying relational database schema. If ** that is successful, call sqlite3_declare_vtab() to configure ** the r-tree table schema. */ if( rc==SQLITE_OK ){ if( (rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate)) ){ |
︙ | ︙ |
Changes to src/sqlite3.h.
︙ | ︙ | |||
103 104 105 106 107 108 109 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ | | | | | 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ #define SQLITE_VERSION "3.7.16" #define SQLITE_VERSION_NUMBER 3007016 #define SQLITE_SOURCE_ID "2013-03-11 13:37:52 f9027cb47bdec8dcebf1f038921b28d9e9928c18" /* ** CAPI3REF: Run-Time Library Version Numbers ** KEYWORDS: sqlite3_version, sqlite3_sourceid ** ** These interfaces provide the same information as the [SQLITE_VERSION], ** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros |
︙ | ︙ | |||
479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 | #define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8)) #define SQLITE_CANTOPEN_NOTEMPDIR (SQLITE_CANTOPEN | (1<<8)) #define SQLITE_CANTOPEN_ISDIR (SQLITE_CANTOPEN | (2<<8)) #define SQLITE_CANTOPEN_FULLPATH (SQLITE_CANTOPEN | (3<<8)) #define SQLITE_CORRUPT_VTAB (SQLITE_CORRUPT | (1<<8)) #define SQLITE_READONLY_RECOVERY (SQLITE_READONLY | (1<<8)) #define SQLITE_READONLY_CANTLOCK (SQLITE_READONLY | (2<<8)) #define SQLITE_ABORT_ROLLBACK (SQLITE_ABORT | (2<<8)) /* ** CAPI3REF: Flags For File Open Operations ** ** These bit values are intended for use in the ** 3rd parameter to the [sqlite3_open_v2()] interface and ** in the 4th parameter to the [sqlite3_vfs.xOpen] method. | > > > > > > > > > > | 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 | #define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8)) #define SQLITE_CANTOPEN_NOTEMPDIR (SQLITE_CANTOPEN | (1<<8)) #define SQLITE_CANTOPEN_ISDIR (SQLITE_CANTOPEN | (2<<8)) #define SQLITE_CANTOPEN_FULLPATH (SQLITE_CANTOPEN | (3<<8)) #define SQLITE_CORRUPT_VTAB (SQLITE_CORRUPT | (1<<8)) #define SQLITE_READONLY_RECOVERY (SQLITE_READONLY | (1<<8)) #define SQLITE_READONLY_CANTLOCK (SQLITE_READONLY | (2<<8)) #define SQLITE_READONLY_ROLLBACK (SQLITE_READONLY | (3<<8)) #define SQLITE_ABORT_ROLLBACK (SQLITE_ABORT | (2<<8)) #define SQLITE_CONSTRAINT_CHECK (SQLITE_CONSTRAINT | (1<<8)) #define SQLITE_CONSTRAINT_COMMITHOOK (SQLITE_CONSTRAINT | (2<<8)) #define SQLITE_CONSTRAINT_FOREIGNKEY (SQLITE_CONSTRAINT | (3<<8)) #define SQLITE_CONSTRAINT_FUNCTION (SQLITE_CONSTRAINT | (4<<8)) #define SQLITE_CONSTRAINT_NOTNULL (SQLITE_CONSTRAINT | (5<<8)) #define SQLITE_CONSTRAINT_PRIMARYKEY (SQLITE_CONSTRAINT | (6<<8)) #define SQLITE_CONSTRAINT_TRIGGER (SQLITE_CONSTRAINT | (7<<8)) #define SQLITE_CONSTRAINT_UNIQUE (SQLITE_CONSTRAINT | (8<<8)) #define SQLITE_CONSTRAINT_VTAB (SQLITE_CONSTRAINT | (9<<8)) /* ** CAPI3REF: Flags For File Open Operations ** ** These bit values are intended for use in the ** 3rd parameter to the [sqlite3_open_v2()] interface and ** in the 4th parameter to the [sqlite3_vfs.xOpen] method. |
︙ | ︙ | |||
1588 1589 1590 1591 1592 1593 1594 | ** connection is opened. If it is globally disabled, filenames are ** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the ** database connection is opened. By default, URI handling is globally ** disabled. The default value may be changed by compiling with the ** [SQLITE_USE_URI] symbol defined. ** ** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN | | | 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 | ** connection is opened. If it is globally disabled, filenames are ** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the ** database connection is opened. By default, URI handling is globally ** disabled. The default value may be changed by compiling with the ** [SQLITE_USE_URI] symbol defined. ** ** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN ** <dd> This option takes a single integer argument which is interpreted as ** a boolean in order to enable or disable the use of covering indices for ** full table scans in the query optimizer. The default setting is determined ** by the [SQLITE_ALLOW_COVERING_INDEX_SCAN] compile-time option, or is "on" ** if that compile-time option is omitted. ** The ability to disable the use of covering indices for full table scans ** is because some incorrectly coded legacy applications might malfunction ** malfunction when the optimization is enabled. Providing the ability to |
︙ | ︙ |