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Overview
Comment:Add 'Changes' property to the connection class. Also, update the core SQLite library to the latest trunk.
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SHA1: 3a02749d711e236180c184187c9528fe7ef51622
User & Date: mistachkin 2011-09-18 22:39:35.950
Context
2011-09-20
17:34
Update core SQLite to 3.7.8 release. check-in: 2fa7c53d4e user: mistachkin tags: trunk
2011-09-18
22:39
Add 'Changes' property to the connection class. Also, update the core SQLite library to the latest trunk. check-in: 3a02749d71 user: mistachkin tags: trunk
2011-09-16
03:37
In the test for ticket [b4a7ddc83f], brace all substituted values in the setup script just in case they may ever contain spaces. check-in: b1727a9afb user: mistachkin tags: trunk
Changes
Unified Diff Ignore Whitespace Patch
Changes to SQLite.Interop/src/core/sqlite3.c.
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**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.8"
#define SQLITE_VERSION_NUMBER 3007008
#define SQLITE_SOURCE_ID      "2011-08-31 23:57:22 2869ed28299b1c9f355ecc24635830f7f1249126"

/*
** 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







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**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.8"
#define SQLITE_VERSION_NUMBER 3007008
#define SQLITE_SOURCE_ID      "2011-09-17 15:34:50 29c4d0dd43d41650e54824afd70dd40f1b91cc86"

/*
** 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
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** Provide a default value for SQLITE_TEMP_STORE in case it is not specified
** on the command-line
*/
#ifndef SQLITE_TEMP_STORE
# define SQLITE_TEMP_STORE 1
#endif

/*
** If all temporary storage is in-memory, then omit the external merge-sort
** logic since it is superfluous.
*/
#if SQLITE_TEMP_STORE==3 && !defined(SQLITE_OMIT_MERGE_SORT)
# define SQLITE_OMIT_MERGE_SORT
#endif

/*
** GCC does not define the offsetof() macro so we'll have to do it
** ourselves.
*/
#ifndef offsetof
#define offsetof(STRUCTURE,FIELD) ((int)((char*)&((STRUCTURE*)0)->FIELD))
#endif







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** Provide a default value for SQLITE_TEMP_STORE in case it is not specified
** on the command-line
*/
#ifndef SQLITE_TEMP_STORE
# define SQLITE_TEMP_STORE 1
#endif









/*
** GCC does not define the offsetof() macro so we'll have to do it
** ourselves.
*/
#ifndef offsetof
#define offsetof(STRUCTURE,FIELD) ((int)((char*)&((STRUCTURE*)0)->FIELD))
#endif
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** pager.h.
*/
#define BTREE_OMIT_JOURNAL  1  /* Do not create or use a rollback journal */
#define BTREE_NO_READLOCK   2  /* Omit readlocks on readonly files */
#define BTREE_MEMORY        4  /* This is an in-memory DB */
#define BTREE_SINGLE        8  /* The file contains at most 1 b-tree */
#define BTREE_UNORDERED    16  /* Use of a hash implementation is OK */
#define BTREE_SORTER       32  /* Used as accumulator in external merge sort */

SQLITE_PRIVATE int sqlite3BtreeClose(Btree*);
SQLITE_PRIVATE int sqlite3BtreeSetCacheSize(Btree*,int);
SQLITE_PRIVATE int sqlite3BtreeSetSafetyLevel(Btree*,int,int,int);
SQLITE_PRIVATE int sqlite3BtreeSyncDisabled(Btree*);
SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix);
SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree*);







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** pager.h.
*/
#define BTREE_OMIT_JOURNAL  1  /* Do not create or use a rollback journal */
#define BTREE_NO_READLOCK   2  /* Omit readlocks on readonly files */
#define BTREE_MEMORY        4  /* This is an in-memory DB */
#define BTREE_SINGLE        8  /* The file contains at most 1 b-tree */
#define BTREE_UNORDERED    16  /* Use of a hash implementation is OK */


SQLITE_PRIVATE int sqlite3BtreeClose(Btree*);
SQLITE_PRIVATE int sqlite3BtreeSetCacheSize(Btree*,int);
SQLITE_PRIVATE int sqlite3BtreeSetSafetyLevel(Btree*,int,int,int);
SQLITE_PRIVATE int sqlite3BtreeSyncDisabled(Btree*);
SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix);
SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree*);
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#define OP_Permutation                         23
#define OP_Compare                             24
#define OP_Jump                                25
#define OP_And                                 69   /* same as TK_AND      */
#define OP_Or                                  68   /* same as TK_OR       */
#define OP_Not                                 19   /* same as TK_NOT      */
#define OP_BitNot                              93   /* same as TK_BITNOT   */

#define OP_If                                  26
#define OP_IfNot                               27
#define OP_IsNull                              73   /* same as TK_ISNULL   */
#define OP_NotNull                             74   /* same as TK_NOTNULL  */
#define OP_Column                              28
#define OP_Affinity                            29
#define OP_MakeRecord                          30
#define OP_Count                               31
#define OP_Savepoint                           32
#define OP_AutoCommit                          33
#define OP_Transaction                         34
#define OP_ReadCookie                          35
#define OP_SetCookie                           36
#define OP_VerifyCookie                        37
#define OP_OpenRead                            38
#define OP_OpenWrite                           39
#define OP_OpenSorter                          40
#define OP_OpenAutoindex                       41
#define OP_OpenEphemeral                       42

#define OP_OpenPseudo                          43
#define OP_Close                               44
#define OP_SeekLt                              45
#define OP_SeekLe                              46
#define OP_SeekGe                              47
#define OP_SeekGt                              48
#define OP_Seek                                49
#define OP_NotFound                            50
#define OP_Found                               51
#define OP_IsUnique                            52
#define OP_NotExists                           53
#define OP_Sequence                            54
#define OP_NewRowid                            55
#define OP_Insert                              56
#define OP_InsertInt                           57
#define OP_Delete                              58
#define OP_ResetCount                          59


#define OP_RowKey                              60
#define OP_RowData                             61
#define OP_Rowid                               62
#define OP_NullRow                             63
#define OP_Last                                64

#define OP_Sort                                65
#define OP_Rewind                              66

#define OP_Prev                                67
#define OP_Next                                70

#define OP_IdxInsert                           71
#define OP_IdxDelete                           72
#define OP_IdxRowid                            81
#define OP_IdxLT                               92
#define OP_IdxGE                               95
#define OP_Destroy                             96
#define OP_Clear                               97
#define OP_CreateIndex                         98
#define OP_CreateTable                         99
#define OP_ParseSchema                        100
#define OP_LoadAnalysis                       101
#define OP_DropTable                          102
#define OP_DropIndex                          103
#define OP_DropTrigger                        104
#define OP_IntegrityCk                        105
#define OP_RowSetAdd                          106
#define OP_RowSetRead                         107
#define OP_RowSetTest                         108
#define OP_Program                            109
#define OP_Param                              110
#define OP_FkCounter                          111
#define OP_FkIfZero                           112
#define OP_MemMax                             113
#define OP_IfPos                              114
#define OP_IfNeg                              115
#define OP_IfZero                             116
#define OP_AggStep                            117
#define OP_AggFinal                           118
#define OP_Checkpoint                         119
#define OP_JournalMode                        120
#define OP_Vacuum                             121
#define OP_IncrVacuum                         122
#define OP_Expire                             123
#define OP_TableLock                          124
#define OP_VBegin                             125
#define OP_VCreate                            126
#define OP_VDestroy                           127
#define OP_VOpen                              128
#define OP_VFilter                            129
#define OP_VColumn                            131
#define OP_VNext                              132
#define OP_VRename                            133
#define OP_VUpdate                            134
#define OP_Pagecount                          135
#define OP_MaxPgcnt                           136
#define OP_Trace                              137
#define OP_Noop                               138
#define OP_Explain                            139

/* The following opcode values are never used */
#define OP_NotUsed_140                        140


/* Properties such as "out2" or "jump" that are specified in
** comments following the "case" for each opcode in the vdbe.c
** are encoded into bitvectors as follows:
*/
#define OPFLG_JUMP            0x0001  /* jump:  P2 holds jmp target */
#define OPFLG_OUT2_PRERELEASE 0x0002  /* out2-prerelease: */
#define OPFLG_IN1             0x0004  /* in1:   P1 is an input */
#define OPFLG_IN2             0x0008  /* in2:   P2 is an input */
#define OPFLG_IN3             0x0010  /* in3:   P3 is an input */
#define OPFLG_OUT2            0x0020  /* out2:  P2 is an output */
#define OPFLG_OUT3            0x0040  /* out3:  P3 is an output */
#define OPFLG_INITIALIZER {\
/*   0 */ 0x00, 0x01, 0x05, 0x04, 0x04, 0x10, 0x00, 0x02,\
/*   8 */ 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, 0x24, 0x24,\
/*  16 */ 0x00, 0x00, 0x00, 0x24, 0x04, 0x05, 0x04, 0x00,\
/*  24 */ 0x00, 0x01, 0x05, 0x05, 0x00, 0x00, 0x00, 0x02,\
/*  32 */ 0x00, 0x00, 0x00, 0x02, 0x10, 0x00, 0x00, 0x00,\
/*  40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11,\
/*  48 */ 0x11, 0x08, 0x11, 0x11, 0x11, 0x11, 0x02, 0x02,\
/*  56 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,\
/*  64 */ 0x01, 0x01, 0x01, 0x01, 0x4c, 0x4c, 0x01, 0x08,\
/*  72 */ 0x00, 0x05, 0x05, 0x15, 0x15, 0x15, 0x15, 0x15,\
/*  80 */ 0x15, 0x02, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,\
/*  88 */ 0x4c, 0x4c, 0x4c, 0x4c, 0x01, 0x24, 0x02, 0x01,\

/*  96 */ 0x02, 0x00, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00,\
/* 104 */ 0x00, 0x00, 0x0c, 0x45, 0x15, 0x01, 0x02, 0x00,\
/* 112 */ 0x01, 0x08, 0x05, 0x05, 0x05, 0x00, 0x00, 0x00,\
/* 120 */ 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 128 */ 0x00, 0x01, 0x02, 0x00, 0x01, 0x00, 0x00, 0x02,\
/* 136 */ 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04,\
/* 144 */ 0x04, 0x04,}

/************** End of opcodes.h *********************************************/
/************** Continuing where we left off in vdbe.h ***********************/

/*
** Prototypes for the VDBE interface.  See comments on the implementation
** for a description of what each of these routines does.







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#define OP_Permutation                         23
#define OP_Compare                             24
#define OP_Jump                                25
#define OP_And                                 69   /* same as TK_AND      */
#define OP_Or                                  68   /* same as TK_OR       */
#define OP_Not                                 19   /* same as TK_NOT      */
#define OP_BitNot                              93   /* same as TK_BITNOT   */
#define OP_Once                                26
#define OP_If                                  27
#define OP_IfNot                               28
#define OP_IsNull                              73   /* same as TK_ISNULL   */
#define OP_NotNull                             74   /* same as TK_NOTNULL  */
#define OP_Column                              29
#define OP_Affinity                            30
#define OP_MakeRecord                          31
#define OP_Count                               32
#define OP_Savepoint                           33
#define OP_AutoCommit                          34
#define OP_Transaction                         35
#define OP_ReadCookie                          36
#define OP_SetCookie                           37
#define OP_VerifyCookie                        38
#define OP_OpenRead                            39
#define OP_OpenWrite                           40

#define OP_OpenAutoindex                       41
#define OP_OpenEphemeral                       42
#define OP_SorterOpen                          43
#define OP_OpenPseudo                          44
#define OP_Close                               45
#define OP_SeekLt                              46
#define OP_SeekLe                              47
#define OP_SeekGe                              48
#define OP_SeekGt                              49
#define OP_Seek                                50
#define OP_NotFound                            51
#define OP_Found                               52
#define OP_IsUnique                            53
#define OP_NotExists                           54
#define OP_Sequence                            55
#define OP_NewRowid                            56
#define OP_Insert                              57
#define OP_InsertInt                           58
#define OP_Delete                              59
#define OP_ResetCount                          60
#define OP_SorterCompare                       61
#define OP_SorterData                          62
#define OP_RowKey                              63
#define OP_RowData                             64
#define OP_Rowid                               65
#define OP_NullRow                             66
#define OP_Last                                67
#define OP_SorterSort                          70
#define OP_Sort                                71
#define OP_Rewind                              72
#define OP_SorterNext                          81
#define OP_Prev                                92
#define OP_Next                                95
#define OP_SorterInsert                        96
#define OP_IdxInsert                           97
#define OP_IdxDelete                           98
#define OP_IdxRowid                            99
#define OP_IdxLT                              100
#define OP_IdxGE                              101
#define OP_Destroy                            102
#define OP_Clear                              103
#define OP_CreateIndex                        104
#define OP_CreateTable                        105
#define OP_ParseSchema                        106
#define OP_LoadAnalysis                       107
#define OP_DropTable                          108
#define OP_DropIndex                          109
#define OP_DropTrigger                        110
#define OP_IntegrityCk                        111
#define OP_RowSetAdd                          112
#define OP_RowSetRead                         113
#define OP_RowSetTest                         114
#define OP_Program                            115
#define OP_Param                              116
#define OP_FkCounter                          117
#define OP_FkIfZero                           118
#define OP_MemMax                             119
#define OP_IfPos                              120
#define OP_IfNeg                              121
#define OP_IfZero                             122
#define OP_AggStep                            123
#define OP_AggFinal                           124
#define OP_Checkpoint                         125
#define OP_JournalMode                        126
#define OP_Vacuum                             127
#define OP_IncrVacuum                         128
#define OP_Expire                             129
#define OP_TableLock                          131
#define OP_VBegin                             132
#define OP_VCreate                            133
#define OP_VDestroy                           134
#define OP_VOpen                              135
#define OP_VFilter                            136
#define OP_VColumn                            137
#define OP_VNext                              138
#define OP_VRename                            139
#define OP_VUpdate                            140
#define OP_Pagecount                          146
#define OP_MaxPgcnt                           147
#define OP_Trace                              148
#define OP_Noop                               149
#define OP_Explain                            150





/* Properties such as "out2" or "jump" that are specified in
** comments following the "case" for each opcode in the vdbe.c
** are encoded into bitvectors as follows:
*/
#define OPFLG_JUMP            0x0001  /* jump:  P2 holds jmp target */
#define OPFLG_OUT2_PRERELEASE 0x0002  /* out2-prerelease: */
#define OPFLG_IN1             0x0004  /* in1:   P1 is an input */
#define OPFLG_IN2             0x0008  /* in2:   P2 is an input */
#define OPFLG_IN3             0x0010  /* in3:   P3 is an input */
#define OPFLG_OUT2            0x0020  /* out2:  P2 is an output */
#define OPFLG_OUT3            0x0040  /* out3:  P3 is an output */
#define OPFLG_INITIALIZER {\
/*   0 */ 0x00, 0x01, 0x05, 0x04, 0x04, 0x10, 0x00, 0x02,\
/*   8 */ 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, 0x24, 0x24,\
/*  16 */ 0x00, 0x00, 0x00, 0x24, 0x04, 0x05, 0x04, 0x00,\
/*  24 */ 0x00, 0x01, 0x05, 0x05, 0x05, 0x00, 0x00, 0x00,\
/*  32 */ 0x02, 0x00, 0x00, 0x00, 0x02, 0x10, 0x00, 0x00,\
/*  40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x11,\
/*  48 */ 0x11, 0x11, 0x08, 0x11, 0x11, 0x11, 0x11, 0x02,\
/*  56 */ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/*  64 */ 0x00, 0x02, 0x00, 0x01, 0x4c, 0x4c, 0x01, 0x01,\
/*  72 */ 0x01, 0x05, 0x05, 0x15, 0x15, 0x15, 0x15, 0x15,\
/*  80 */ 0x15, 0x01, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,\
/*  88 */ 0x4c, 0x4c, 0x4c, 0x4c, 0x01, 0x24, 0x02, 0x01,\
/*  96 */ 0x08, 0x08, 0x00, 0x02, 0x01, 0x01, 0x02, 0x00,\
/* 104 */ 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 112 */ 0x0c, 0x45, 0x15, 0x01, 0x02, 0x00, 0x01, 0x08,\
/* 120 */ 0x05, 0x05, 0x05, 0x00, 0x00, 0x00, 0x02, 0x00,\
/* 128 */ 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 136 */ 0x01, 0x00, 0x01, 0x00, 0x00, 0x04, 0x04, 0x04,\

/* 144 */ 0x04, 0x04, 0x02, 0x02, 0x00, 0x00, 0x00,}

/************** End of opcodes.h *********************************************/
/************** Continuing where we left off in vdbe.h ***********************/

/*
** Prototypes for the VDBE interface.  See comments on the implementation
** for a description of what each of these routines does.
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SQLITE_PRIVATE int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp);
SQLITE_PRIVATE void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, u32 addr, int P1);
SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, u32 addr, int P2);
SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, u32 addr, int P3);
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe*, u8 P5);
SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe*, int addr);
SQLITE_PRIVATE void sqlite3VdbeChangeToNoop(Vdbe*, int addr, int N);
SQLITE_PRIVATE void sqlite3VdbeChangeP4(Vdbe*, int addr, const char *zP4, int N);
SQLITE_PRIVATE void sqlite3VdbeUsesBtree(Vdbe*, int);
SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe*, int);
SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeDelete(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeDeleteObject(sqlite3*,Vdbe*);







|







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SQLITE_PRIVATE int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp);
SQLITE_PRIVATE void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, u32 addr, int P1);
SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, u32 addr, int P2);
SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, u32 addr, int P3);
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe*, u8 P5);
SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe*, int addr);
SQLITE_PRIVATE void sqlite3VdbeChangeToNoop(Vdbe*, int addr);
SQLITE_PRIVATE void sqlite3VdbeChangeP4(Vdbe*, int addr, const char *zP4, int N);
SQLITE_PRIVATE void sqlite3VdbeUsesBtree(Vdbe*, int);
SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe*, int);
SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeDelete(Vdbe*);
SQLITE_PRIVATE void sqlite3VdbeDeleteObject(sqlite3*,Vdbe*);
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SQLITE_PRIVATE VdbeOp *sqlite3VdbeTakeOpArray(Vdbe*, int*, int*);
SQLITE_PRIVATE sqlite3_value *sqlite3VdbeGetValue(Vdbe*, int, u8);
SQLITE_PRIVATE void sqlite3VdbeSetVarmask(Vdbe*, int);
#ifndef SQLITE_OMIT_TRACE
SQLITE_PRIVATE   char *sqlite3VdbeExpandSql(Vdbe*, const char*);
#endif

SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,char*,int);
SQLITE_PRIVATE void sqlite3VdbeDeleteUnpackedRecord(UnpackedRecord*);
SQLITE_PRIVATE int sqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*);


#ifndef SQLITE_OMIT_TRIGGER
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *);
#endif


#ifndef NDEBUG







|
<

>







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SQLITE_PRIVATE VdbeOp *sqlite3VdbeTakeOpArray(Vdbe*, int*, int*);
SQLITE_PRIVATE sqlite3_value *sqlite3VdbeGetValue(Vdbe*, int, u8);
SQLITE_PRIVATE void sqlite3VdbeSetVarmask(Vdbe*, int);
#ifndef SQLITE_OMIT_TRACE
SQLITE_PRIVATE   char *sqlite3VdbeExpandSql(Vdbe*, const char*);
#endif

SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,UnpackedRecord*);

SQLITE_PRIVATE int sqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*);
SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord(KeyInfo *, char *, int, char **);

#ifndef SQLITE_OMIT_TRIGGER
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *);
#endif


#ifndef NDEBUG
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SQLITE_PRIVATE const char *sqlite3PagerFilename(Pager*);
SQLITE_PRIVATE const sqlite3_vfs *sqlite3PagerVfs(Pager*);
SQLITE_PRIVATE sqlite3_file *sqlite3PagerFile(Pager*);
SQLITE_PRIVATE const char *sqlite3PagerJournalname(Pager*);
SQLITE_PRIVATE int sqlite3PagerNosync(Pager*);
SQLITE_PRIVATE void *sqlite3PagerTempSpace(Pager*);
SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager*);
#ifndef SQLITE_OMIT_MERGE_SORT
SQLITE_PRIVATE int sqlite3PagerUnderStress(Pager*);
#endif

/* Functions used to truncate the database file. */
SQLITE_PRIVATE void sqlite3PagerTruncateImage(Pager*,Pgno);

#if defined(SQLITE_HAS_CODEC) && !defined(SQLITE_OMIT_WAL)
SQLITE_PRIVATE void *sqlite3PagerCodec(DbPage *);
#endif







<
<
<







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8748
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8754
SQLITE_PRIVATE const char *sqlite3PagerFilename(Pager*);
SQLITE_PRIVATE const sqlite3_vfs *sqlite3PagerVfs(Pager*);
SQLITE_PRIVATE sqlite3_file *sqlite3PagerFile(Pager*);
SQLITE_PRIVATE const char *sqlite3PagerJournalname(Pager*);
SQLITE_PRIVATE int sqlite3PagerNosync(Pager*);
SQLITE_PRIVATE void *sqlite3PagerTempSpace(Pager*);
SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager*);




/* Functions used to truncate the database file. */
SQLITE_PRIVATE void sqlite3PagerTruncateImage(Pager*,Pgno);

#if defined(SQLITE_HAS_CODEC) && !defined(SQLITE_OMIT_WAL)
SQLITE_PRIVATE void *sqlite3PagerCodec(DbPage *);
#endif
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10191
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*/
struct AggInfo {
  u8 directMode;          /* Direct rendering mode means take data directly
                          ** from source tables rather than from accumulators */
  u8 useSortingIdx;       /* In direct mode, reference the sorting index rather
                          ** than the source table */
  int sortingIdx;         /* Cursor number of the sorting index */

  ExprList *pGroupBy;     /* The group by clause */
  int nSortingColumn;     /* Number of columns in the sorting index */
  struct AggInfo_col {    /* For each column used in source tables */
    Table *pTab;             /* Source table */
    int iTable;              /* Cursor number of the source table */
    int iColumn;             /* Column number within the source table */
    int iSorterColumn;       /* Column number in the sorting index */







>







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10188
10189
*/
struct AggInfo {
  u8 directMode;          /* Direct rendering mode means take data directly
                          ** from source tables rather than from accumulators */
  u8 useSortingIdx;       /* In direct mode, reference the sorting index rather
                          ** than the source table */
  int sortingIdx;         /* Cursor number of the sorting index */
  int sortingIdxPTab;     /* Cursor number of pseudo-table */
  ExprList *pGroupBy;     /* The group by clause */
  int nSortingColumn;     /* Number of columns in the sorting index */
  struct AggInfo_col {    /* For each column used in source tables */
    Table *pTab;             /* Source table */
    int iTable;              /* Cursor number of the source table */
    int iColumn;             /* Column number within the source table */
    int iSorterColumn;       /* Column number in the sorting index */
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  i16 nAlloc;      /* Number of entries allocated in a[] below */
  struct SrcList_item {
    char *zDatabase;  /* Name of database holding this table */
    char *zName;      /* Name of the table */
    char *zAlias;     /* The "B" part of a "A AS B" phrase.  zName is the "A" */
    Table *pTab;      /* An SQL table corresponding to zName */
    Select *pSelect;  /* A SELECT statement used in place of a table name */
    u8 isPopulated;   /* Temporary table associated with SELECT is populated */

    u8 jointype;      /* Type of join between this able and the previous */
    u8 notIndexed;    /* True if there is a NOT INDEXED clause */
    u8 isCorrelated;  /* True if sub-query is correlated */
#ifndef SQLITE_OMIT_EXPLAIN
    u8 iSelectId;     /* If pSelect!=0, the id of the sub-select in EQP */
#endif
    int iCursor;      /* The VDBE cursor number used to access this table */







|
>







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  i16 nAlloc;      /* Number of entries allocated in a[] below */
  struct SrcList_item {
    char *zDatabase;  /* Name of database holding this table */
    char *zName;      /* Name of the table */
    char *zAlias;     /* The "B" part of a "A AS B" phrase.  zName is the "A" */
    Table *pTab;      /* An SQL table corresponding to zName */
    Select *pSelect;  /* A SELECT statement used in place of a table name */
    int addrFillSub;  /* Address of subroutine to manifest a subquery */
    int regReturn;    /* Register holding return address of addrFillSub */
    u8 jointype;      /* Type of join between this able and the previous */
    u8 notIndexed;    /* True if there is a NOT INDEXED clause */
    u8 isCorrelated;  /* True if sub-query is correlated */
#ifndef SQLITE_OMIT_EXPLAIN
    u8 iSelectId;     /* If pSelect!=0, the id of the sub-select in EQP */
#endif
    int iCursor;      /* The VDBE cursor number used to access this table */
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*/
#define SF_Distinct        0x0001  /* Output should be DISTINCT */
#define SF_Resolved        0x0002  /* Identifiers have been resolved */
#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 */



/*
** 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 */







>







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10723
*/
#define SF_Distinct        0x0001  /* Output should be DISTINCT */
#define SF_Resolved        0x0002  /* Identifiers have been resolved */
#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 */


/*
** 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 */
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  Bool atFirst;         /* True if pointing to first entry */
  Bool useRandomRowid;  /* Generate new record numbers semi-randomly */
  Bool nullRow;         /* True if pointing to a row with no data */
  Bool deferredMoveto;  /* A call to sqlite3BtreeMoveto() is needed */
  Bool isTable;         /* True if a table requiring integer keys */
  Bool isIndex;         /* True if an index containing keys only - no data */
  Bool isOrdered;       /* True if the underlying table is BTREE_UNORDERED */

  sqlite3_vtab_cursor *pVtabCursor;  /* The cursor for a virtual table */
  const sqlite3_module *pModule;     /* Module for cursor pVtabCursor */
  i64 seqCount;         /* Sequence counter */
  i64 movetoTarget;     /* Argument to the deferred sqlite3BtreeMoveto() */
  i64 lastRowid;        /* Last rowid from a Next or NextIdx operation */
  VdbeSorter *pSorter;  /* Sorter object for OP_OpenSorter cursors */

  /* Result of last sqlite3BtreeMoveto() done by an OP_NotExists or 
  ** OP_IsUnique opcode on this cursor. */
  int seekResult;

  /* Cached information about the header for the data record that the
  ** cursor is currently pointing to.  Only valid if cacheStatus matches







>





|







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  Bool atFirst;         /* True if pointing to first entry */
  Bool useRandomRowid;  /* Generate new record numbers semi-randomly */
  Bool nullRow;         /* True if pointing to a row with no data */
  Bool deferredMoveto;  /* A call to sqlite3BtreeMoveto() is needed */
  Bool isTable;         /* True if a table requiring integer keys */
  Bool isIndex;         /* True if an index containing keys only - no data */
  Bool isOrdered;       /* True if the underlying table is BTREE_UNORDERED */
  Bool isSorter;        /* True if a new-style sorter */
  sqlite3_vtab_cursor *pVtabCursor;  /* The cursor for a virtual table */
  const sqlite3_module *pModule;     /* Module for cursor pVtabCursor */
  i64 seqCount;         /* Sequence counter */
  i64 movetoTarget;     /* Argument to the deferred sqlite3BtreeMoveto() */
  i64 lastRowid;        /* Last rowid from a Next or NextIdx operation */
  VdbeSorter *pSorter;  /* Sorter object for OP_SorterOpen cursors */

  /* Result of last sqlite3BtreeMoveto() done by an OP_NotExists or 
  ** OP_IsUnique opcode on this cursor. */
  int seekResult;

  /* Cached information about the header for the data record that the
  ** cursor is currently pointing to.  Only valid if cacheStatus matches
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#ifdef SQLITE_OMIT_MERGE_SORT
# define sqlite3VdbeSorterInit(Y,Z)      SQLITE_OK
# define sqlite3VdbeSorterWrite(X,Y,Z)   SQLITE_OK
# define sqlite3VdbeSorterClose(Y,Z)
# define sqlite3VdbeSorterRowkey(Y,Z)    SQLITE_OK
# define sqlite3VdbeSorterRewind(X,Y,Z)  SQLITE_OK
# define sqlite3VdbeSorterNext(X,Y,Z)    SQLITE_OK

#else
SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE int sqlite3VdbeSorterWrite(sqlite3 *, VdbeCursor *, int);
SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(VdbeCursor *, Mem *);

SQLITE_PRIVATE int sqlite3VdbeSorterRewind(sqlite3 *, VdbeCursor *, int *);

SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *, VdbeCursor *, int *);
#endif

#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
SQLITE_PRIVATE   void sqlite3VdbeEnter(Vdbe*);
SQLITE_PRIVATE   void sqlite3VdbeLeave(Vdbe*);
#else
# define sqlite3VdbeEnter(X)







>


<


>

>
|







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#ifdef SQLITE_OMIT_MERGE_SORT
# define sqlite3VdbeSorterInit(Y,Z)      SQLITE_OK
# define sqlite3VdbeSorterWrite(X,Y,Z)   SQLITE_OK
# define sqlite3VdbeSorterClose(Y,Z)
# define sqlite3VdbeSorterRowkey(Y,Z)    SQLITE_OK
# define sqlite3VdbeSorterRewind(X,Y,Z)  SQLITE_OK
# define sqlite3VdbeSorterNext(X,Y,Z)    SQLITE_OK
# define sqlite3VdbeSorterCompare(X,Y,Z) SQLITE_OK
#else
SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *, VdbeCursor *);

SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(VdbeCursor *, Mem *);
SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *, VdbeCursor *, int *);
SQLITE_PRIVATE int sqlite3VdbeSorterRewind(sqlite3 *, VdbeCursor *, int *);
SQLITE_PRIVATE int sqlite3VdbeSorterWrite(sqlite3 *, VdbeCursor *, Mem *);
SQLITE_PRIVATE int sqlite3VdbeSorterCompare(VdbeCursor *, Mem *, int *);
#endif

#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
SQLITE_PRIVATE   void sqlite3VdbeEnter(Vdbe*);
SQLITE_PRIVATE   void sqlite3VdbeLeave(Vdbe*);
#else
# define sqlite3VdbeEnter(X)
14538
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14550
14551
14552
  const char *zFile, 
  sqlite3_file **ppFile, 
  int flags,
  int *pOutFlags
){
  int rc = SQLITE_NOMEM;
  sqlite3_file *pFile;
  pFile = (sqlite3_file *)sqlite3Malloc(pVfs->szOsFile);
  if( pFile ){
    rc = sqlite3OsOpen(pVfs, zFile, pFile, flags, pOutFlags);
    if( rc!=SQLITE_OK ){
      sqlite3_free(pFile);
    }else{
      *ppFile = pFile;
    }







|







14535
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14549
  const char *zFile, 
  sqlite3_file **ppFile, 
  int flags,
  int *pOutFlags
){
  int rc = SQLITE_NOMEM;
  sqlite3_file *pFile;
  pFile = (sqlite3_file *)sqlite3MallocZero(pVfs->szOsFile);
  if( pFile ){
    rc = sqlite3OsOpen(pVfs, zFile, pFile, flags, pOutFlags);
    if( rc!=SQLITE_OK ){
      sqlite3_free(pFile);
    }else{
      *ppFile = pFile;
    }
22101
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22226
22227





22228
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22233
22234
     /*  19 */ "Not",
     /*  20 */ "AddImm",
     /*  21 */ "MustBeInt",
     /*  22 */ "RealAffinity",
     /*  23 */ "Permutation",
     /*  24 */ "Compare",
     /*  25 */ "Jump",
     /*  26 */ "If",
     /*  27 */ "IfNot",
     /*  28 */ "Column",
     /*  29 */ "Affinity",
     /*  30 */ "MakeRecord",
     /*  31 */ "Count",
     /*  32 */ "Savepoint",
     /*  33 */ "AutoCommit",
     /*  34 */ "Transaction",
     /*  35 */ "ReadCookie",
     /*  36 */ "SetCookie",
     /*  37 */ "VerifyCookie",
     /*  38 */ "OpenRead",
     /*  39 */ "OpenWrite",
     /*  40 */ "OpenSorter",
     /*  41 */ "OpenAutoindex",
     /*  42 */ "OpenEphemeral",
     /*  43 */ "OpenPseudo",
     /*  44 */ "Close",
     /*  45 */ "SeekLt",
     /*  46 */ "SeekLe",
     /*  47 */ "SeekGe",
     /*  48 */ "SeekGt",
     /*  49 */ "Seek",
     /*  50 */ "NotFound",
     /*  51 */ "Found",
     /*  52 */ "IsUnique",
     /*  53 */ "NotExists",
     /*  54 */ "Sequence",
     /*  55 */ "NewRowid",
     /*  56 */ "Insert",
     /*  57 */ "InsertInt",
     /*  58 */ "Delete",
     /*  59 */ "ResetCount",
     /*  60 */ "RowKey",
     /*  61 */ "RowData",
     /*  62 */ "Rowid",
     /*  63 */ "NullRow",
     /*  64 */ "Last",
     /*  65 */ "Sort",
     /*  66 */ "Rewind",
     /*  67 */ "Prev",
     /*  68 */ "Or",
     /*  69 */ "And",
     /*  70 */ "Next",
     /*  71 */ "IdxInsert",
     /*  72 */ "IdxDelete",
     /*  73 */ "IsNull",
     /*  74 */ "NotNull",
     /*  75 */ "Ne",
     /*  76 */ "Eq",
     /*  77 */ "Gt",
     /*  78 */ "Le",
     /*  79 */ "Lt",
     /*  80 */ "Ge",
     /*  81 */ "IdxRowid",
     /*  82 */ "BitAnd",
     /*  83 */ "BitOr",
     /*  84 */ "ShiftLeft",
     /*  85 */ "ShiftRight",
     /*  86 */ "Add",
     /*  87 */ "Subtract",
     /*  88 */ "Multiply",
     /*  89 */ "Divide",
     /*  90 */ "Remainder",
     /*  91 */ "Concat",
     /*  92 */ "IdxLT",
     /*  93 */ "BitNot",
     /*  94 */ "String8",
     /*  95 */ "IdxGE",
     /*  96 */ "Destroy",
     /*  97 */ "Clear",
     /*  98 */ "CreateIndex",
     /*  99 */ "CreateTable",
     /* 100 */ "ParseSchema",
     /* 101 */ "LoadAnalysis",
     /* 102 */ "DropTable",
     /* 103 */ "DropIndex",
     /* 104 */ "DropTrigger",
     /* 105 */ "IntegrityCk",
     /* 106 */ "RowSetAdd",
     /* 107 */ "RowSetRead",
     /* 108 */ "RowSetTest",
     /* 109 */ "Program",
     /* 110 */ "Param",
     /* 111 */ "FkCounter",
     /* 112 */ "FkIfZero",
     /* 113 */ "MemMax",
     /* 114 */ "IfPos",
     /* 115 */ "IfNeg",
     /* 116 */ "IfZero",
     /* 117 */ "AggStep",
     /* 118 */ "AggFinal",
     /* 119 */ "Checkpoint",
     /* 120 */ "JournalMode",
     /* 121 */ "Vacuum",
     /* 122 */ "IncrVacuum",
     /* 123 */ "Expire",
     /* 124 */ "TableLock",
     /* 125 */ "VBegin",
     /* 126 */ "VCreate",
     /* 127 */ "VDestroy",
     /* 128 */ "VOpen",
     /* 129 */ "VFilter",
     /* 130 */ "Real",
     /* 131 */ "VColumn",
     /* 132 */ "VNext",
     /* 133 */ "VRename",
     /* 134 */ "VUpdate",
     /* 135 */ "Pagecount",
     /* 136 */ "MaxPgcnt",
     /* 137 */ "Trace",
     /* 138 */ "Noop",
     /* 139 */ "Explain",
     /* 140 */ "NotUsed_140",
     /* 141 */ "ToText",
     /* 142 */ "ToBlob",
     /* 143 */ "ToNumeric",
     /* 144 */ "ToInt",
     /* 145 */ "ToReal",





  };
  return azName[i];
}
#endif

/************** End of opcodes.c *********************************************/
/************** Begin file os_os2.c ******************************************/







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>
>
>
>
>







22098
22099
22100
22101
22102
22103
22104
22105
22106
22107
22108
22109
22110
22111
22112
22113
22114
22115
22116
22117
22118
22119
22120
22121
22122
22123
22124
22125
22126
22127
22128
22129
22130
22131
22132
22133
22134
22135
22136
22137
22138
22139
22140
22141
22142
22143
22144
22145
22146
22147
22148
22149
22150
22151
22152
22153
22154
22155
22156
22157
22158
22159
22160
22161
22162
22163
22164
22165
22166
22167
22168
22169
22170
22171
22172
22173
22174
22175
22176
22177
22178
22179
22180
22181
22182
22183
22184
22185
22186
22187
22188
22189
22190
22191
22192
22193
22194
22195
22196
22197
22198
22199
22200
22201
22202
22203
22204
22205
22206
22207
22208
22209
22210
22211
22212
22213
22214
22215
22216
22217
22218
22219
22220
22221
22222
22223
22224
22225
22226
22227
22228
22229
22230
22231
22232
22233
22234
22235
22236
     /*  19 */ "Not",
     /*  20 */ "AddImm",
     /*  21 */ "MustBeInt",
     /*  22 */ "RealAffinity",
     /*  23 */ "Permutation",
     /*  24 */ "Compare",
     /*  25 */ "Jump",
     /*  26 */ "Once",
     /*  27 */ "If",
     /*  28 */ "IfNot",
     /*  29 */ "Column",
     /*  30 */ "Affinity",
     /*  31 */ "MakeRecord",
     /*  32 */ "Count",
     /*  33 */ "Savepoint",
     /*  34 */ "AutoCommit",
     /*  35 */ "Transaction",
     /*  36 */ "ReadCookie",
     /*  37 */ "SetCookie",
     /*  38 */ "VerifyCookie",
     /*  39 */ "OpenRead",
     /*  40 */ "OpenWrite",
     /*  41 */ "OpenAutoindex",
     /*  42 */ "OpenEphemeral",
     /*  43 */ "SorterOpen",
     /*  44 */ "OpenPseudo",
     /*  45 */ "Close",
     /*  46 */ "SeekLt",
     /*  47 */ "SeekLe",
     /*  48 */ "SeekGe",
     /*  49 */ "SeekGt",
     /*  50 */ "Seek",
     /*  51 */ "NotFound",
     /*  52 */ "Found",
     /*  53 */ "IsUnique",
     /*  54 */ "NotExists",
     /*  55 */ "Sequence",
     /*  56 */ "NewRowid",
     /*  57 */ "Insert",
     /*  58 */ "InsertInt",
     /*  59 */ "Delete",
     /*  60 */ "ResetCount",
     /*  61 */ "SorterCompare",
     /*  62 */ "SorterData",
     /*  63 */ "RowKey",
     /*  64 */ "RowData",
     /*  65 */ "Rowid",
     /*  66 */ "NullRow",
     /*  67 */ "Last",
     /*  68 */ "Or",
     /*  69 */ "And",
     /*  70 */ "SorterSort",
     /*  71 */ "Sort",
     /*  72 */ "Rewind",
     /*  73 */ "IsNull",
     /*  74 */ "NotNull",
     /*  75 */ "Ne",
     /*  76 */ "Eq",
     /*  77 */ "Gt",
     /*  78 */ "Le",
     /*  79 */ "Lt",
     /*  80 */ "Ge",
     /*  81 */ "SorterNext",
     /*  82 */ "BitAnd",
     /*  83 */ "BitOr",
     /*  84 */ "ShiftLeft",
     /*  85 */ "ShiftRight",
     /*  86 */ "Add",
     /*  87 */ "Subtract",
     /*  88 */ "Multiply",
     /*  89 */ "Divide",
     /*  90 */ "Remainder",
     /*  91 */ "Concat",
     /*  92 */ "Prev",
     /*  93 */ "BitNot",
     /*  94 */ "String8",
     /*  95 */ "Next",
     /*  96 */ "SorterInsert",
     /*  97 */ "IdxInsert",
     /*  98 */ "IdxDelete",
     /*  99 */ "IdxRowid",
     /* 100 */ "IdxLT",
     /* 101 */ "IdxGE",
     /* 102 */ "Destroy",
     /* 103 */ "Clear",
     /* 104 */ "CreateIndex",
     /* 105 */ "CreateTable",
     /* 106 */ "ParseSchema",
     /* 107 */ "LoadAnalysis",
     /* 108 */ "DropTable",
     /* 109 */ "DropIndex",
     /* 110 */ "DropTrigger",
     /* 111 */ "IntegrityCk",
     /* 112 */ "RowSetAdd",
     /* 113 */ "RowSetRead",
     /* 114 */ "RowSetTest",
     /* 115 */ "Program",
     /* 116 */ "Param",
     /* 117 */ "FkCounter",
     /* 118 */ "FkIfZero",
     /* 119 */ "MemMax",
     /* 120 */ "IfPos",
     /* 121 */ "IfNeg",
     /* 122 */ "IfZero",
     /* 123 */ "AggStep",
     /* 124 */ "AggFinal",
     /* 125 */ "Checkpoint",
     /* 126 */ "JournalMode",
     /* 127 */ "Vacuum",
     /* 128 */ "IncrVacuum",
     /* 129 */ "Expire",
     /* 130 */ "Real",
     /* 131 */ "TableLock",
     /* 132 */ "VBegin",
     /* 133 */ "VCreate",
     /* 134 */ "VDestroy",
     /* 135 */ "VOpen",
     /* 136 */ "VFilter",
     /* 137 */ "VColumn",
     /* 138 */ "VNext",
     /* 139 */ "VRename",
     /* 140 */ "VUpdate",
     /* 141 */ "ToText",
     /* 142 */ "ToBlob",
     /* 143 */ "ToNumeric",
     /* 144 */ "ToInt",
     /* 145 */ "ToReal",
     /* 146 */ "Pagecount",
     /* 147 */ "MaxPgcnt",
     /* 148 */ "Trace",
     /* 149 */ "Noop",
     /* 150 */ "Explain",
  };
  return azName[i];
}
#endif

/************** End of opcodes.c *********************************************/
/************** Begin file os_os2.c ******************************************/
32796
32797
32798
32799
32800
32801
32802






32803





32804
32805
32806
32807
32808
32809
32810
32811
32812
SQLITE_API int sqlite3_fullsync_count = 0;
#endif

/*
** Make sure all writes to a particular file are committed to disk.
*/
static int winSync(sqlite3_file *id, int flags){






#if !defined(NDEBUG) || !defined(SQLITE_NO_SYNC) || defined(SQLITE_DEBUG)





  winFile *pFile = (winFile*)id;
  BOOL rc;
#else
  UNUSED_PARAMETER(id);
#endif

  assert( pFile );
  /* Check that one of SQLITE_SYNC_NORMAL or FULL was passed */
  assert((flags&0x0F)==SQLITE_SYNC_NORMAL







>
>
>
>
>
>
|
>
>
>
>
>

<







32798
32799
32800
32801
32802
32803
32804
32805
32806
32807
32808
32809
32810
32811
32812
32813
32814
32815
32816
32817

32818
32819
32820
32821
32822
32823
32824
SQLITE_API int sqlite3_fullsync_count = 0;
#endif

/*
** Make sure all writes to a particular file are committed to disk.
*/
static int winSync(sqlite3_file *id, int flags){
#ifndef SQLITE_NO_SYNC
  /*
  ** Used only when SQLITE_NO_SYNC is not defined.
   */
  BOOL rc;
#endif
#if !defined(NDEBUG) || !defined(SQLITE_NO_SYNC) || \
    (defined(SQLITE_TEST) && defined(SQLITE_DEBUG))
  /*
  ** Used when SQLITE_NO_SYNC is not defined and by the assert() and/or
  ** OSTRACE() macros.
   */
  winFile *pFile = (winFile*)id;

#else
  UNUSED_PARAMETER(id);
#endif

  assert( pFile );
  /* Check that one of SQLITE_SYNC_NORMAL or FULL was passed */
  assert((flags&0x0F)==SQLITE_SYNC_NORMAL
38138
38139
38140
38141
38142
38143
38144
38145
38146
38147
38148
38149
38150
38151
38152
  u8 fullSync;                /* Do extra syncs of the journal for robustness */
  u8 ckptSyncFlags;           /* SYNC_NORMAL or SYNC_FULL for checkpoint */
  u8 syncFlags;               /* SYNC_NORMAL or SYNC_FULL otherwise */
  u8 tempFile;                /* zFilename is a temporary file */
  u8 readOnly;                /* True for a read-only database */
  u8 memDb;                   /* True to inhibit all file I/O */
  u8 hasSeenStress;           /* pagerStress() called one or more times */
  u8 isSorter;                /* True for a PAGER_SORTER */

  /**************************************************************************
  ** The following block contains those class members that change during
  ** routine opertion.  Class members not in this block are either fixed
  ** when the pager is first created or else only change when there is a
  ** significant mode change (such as changing the page_size, locking_mode,
  ** or the journal_mode).  From another view, these class members describe







<







38150
38151
38152
38153
38154
38155
38156

38157
38158
38159
38160
38161
38162
38163
  u8 fullSync;                /* Do extra syncs of the journal for robustness */
  u8 ckptSyncFlags;           /* SYNC_NORMAL or SYNC_FULL for checkpoint */
  u8 syncFlags;               /* SYNC_NORMAL or SYNC_FULL otherwise */
  u8 tempFile;                /* zFilename is a temporary file */
  u8 readOnly;                /* True for a read-only database */
  u8 memDb;                   /* True to inhibit all file I/O */
  u8 hasSeenStress;           /* pagerStress() called one or more times */


  /**************************************************************************
  ** The following block contains those class members that change during
  ** routine opertion.  Class members not in this block are either fixed
  ** when the pager is first created or else only change when there is a
  ** significant mode change (such as changing the page_size, locking_mode,
  ** or the journal_mode).  From another view, these class members describe
38362
38363
38364
38365
38366
38367
38368
38369
38370
38371
38372
38373
38374
38375
38376
38377
38378
38379
38380
38381
38382
38383
38384
    assert( p->journalMode==PAGER_JOURNALMODE_OFF 
         || p->journalMode==PAGER_JOURNALMODE_MEMORY 
    );
    assert( p->eState!=PAGER_ERROR && p->eState!=PAGER_OPEN );
    assert( pagerUseWal(p)==0 );
  }

  /* A sorter is a temp file that never spills to disk and always has
  ** the doNotSpill flag set
  */
  if( p->isSorter ){
    assert( p->tempFile );
    assert( p->doNotSpill );
    assert( p->fd->pMethods==0 );
  }

  /* If changeCountDone is set, a RESERVED lock or greater must be held
  ** on the file.
  */
  assert( pPager->changeCountDone==0 || pPager->eLock>=RESERVED_LOCK );
  assert( p->eLock!=PENDING_LOCK );

  switch( p->eState ){







<
<
<
<
<
<
<
<
<







38373
38374
38375
38376
38377
38378
38379









38380
38381
38382
38383
38384
38385
38386
    assert( p->journalMode==PAGER_JOURNALMODE_OFF 
         || p->journalMode==PAGER_JOURNALMODE_MEMORY 
    );
    assert( p->eState!=PAGER_ERROR && p->eState!=PAGER_OPEN );
    assert( pagerUseWal(p)==0 );
  }










  /* If changeCountDone is set, a RESERVED lock or greater must be held
  ** on the file.
  */
  assert( pPager->changeCountDone==0 || pPager->eLock>=RESERVED_LOCK );
  assert( p->eLock!=PENDING_LOCK );

  switch( p->eState ){
42074
42075
42076
42077
42078
42079
42080
42081
42082
42083
42084
42085
42086
42087
42088
42089
42090
42091
42092
42093
  }else if( memDb ){
    pPager->journalMode = PAGER_JOURNALMODE_MEMORY;
  }
  /* pPager->xBusyHandler = 0; */
  /* pPager->pBusyHandlerArg = 0; */
  pPager->xReiniter = xReinit;
  /* memset(pPager->aHash, 0, sizeof(pPager->aHash)); */
#ifndef SQLITE_OMIT_MERGE_SORT
  if( flags & PAGER_SORTER ){
    pPager->doNotSpill = 1;
    pPager->isSorter = 1;
  }
#endif

  *ppPager = pPager;
  return SQLITE_OK;
}










<
<
<
<
<
<







42076
42077
42078
42079
42080
42081
42082






42083
42084
42085
42086
42087
42088
42089
  }else if( memDb ){
    pPager->journalMode = PAGER_JOURNALMODE_MEMORY;
  }
  /* pPager->xBusyHandler = 0; */
  /* pPager->pBusyHandlerArg = 0; */
  pPager->xReiniter = xReinit;
  /* memset(pPager->aHash, 0, sizeof(pPager->aHash)); */







  *ppPager = pPager;
  return SQLITE_OK;
}



43624
43625
43626
43627
43628
43629
43630
43631
43632
43633
43634
43635
43636
43637
43638
43639
43640
43641
43642
43643
43644
43645
43646
43647
43648
/*
** Return true if this is an in-memory pager.
*/
SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager *pPager){
  return MEMDB;
}

#ifndef SQLITE_OMIT_MERGE_SORT
/*
** Return true if the pager has seen a pagerStress callback.
*/
SQLITE_PRIVATE int sqlite3PagerUnderStress(Pager *pPager){
  assert( pPager->isSorter );
  assert( pPager->doNotSpill );
  return pPager->hasSeenStress;
}
#endif

/*
** Check that there are at least nSavepoint savepoints open. If there are
** currently less than nSavepoints open, then open one or more savepoints
** to make up the difference. If the number of savepoints is already
** equal to nSavepoint, then this function is a no-op.
**
** If a memory allocation fails, SQLITE_NOMEM is returned. If an error 







<
<
<
<
<
<
<
<
<
<
<







43620
43621
43622
43623
43624
43625
43626











43627
43628
43629
43630
43631
43632
43633
/*
** Return true if this is an in-memory pager.
*/
SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager *pPager){
  return MEMDB;
}












/*
** Check that there are at least nSavepoint savepoints open. If there are
** currently less than nSavepoints open, then open one or more savepoints
** to make up the difference. If the number of savepoints is already
** equal to nSavepoint, then this function is a no-op.
**
** If a memory allocation fails, SQLITE_NOMEM is returned. If an error 
48925
48926
48927
48928
48929
48930
48931

48932
48933
48934
48935
48936

48937

48938
48939
48940
48941
48942
48943
48944
48945
48946
48947
48948
48949
48950
  i64 nKey,           /* Integer key for tables.  Size of pKey for indices */
  int bias,           /* Bias search to the high end */
  int *pRes           /* Write search results here */
){
  int rc;                    /* Status code */
  UnpackedRecord *pIdxKey;   /* Unpacked index key */
  char aSpace[150];          /* Temp space for pIdxKey - to avoid a malloc */


  if( pKey ){
    assert( nKey==(i64)(int)nKey );
    pIdxKey = sqlite3VdbeRecordUnpack(pCur->pKeyInfo, (int)nKey, pKey,
                                      aSpace, sizeof(aSpace));

    if( pIdxKey==0 ) return SQLITE_NOMEM;

  }else{
    pIdxKey = 0;
  }
  rc = sqlite3BtreeMovetoUnpacked(pCur, pIdxKey, nKey, bias, pRes);
  if( pKey ){
    sqlite3VdbeDeleteUnpackedRecord(pIdxKey);
  }
  return rc;
}

/*
** Restore the cursor to the position it was in (or as close to as possible)
** when saveCursorPosition() was called. Note that this call deletes the 







>



|
|
>

>




|
|







48910
48911
48912
48913
48914
48915
48916
48917
48918
48919
48920
48921
48922
48923
48924
48925
48926
48927
48928
48929
48930
48931
48932
48933
48934
48935
48936
48937
48938
  i64 nKey,           /* Integer key for tables.  Size of pKey for indices */
  int bias,           /* Bias search to the high end */
  int *pRes           /* Write search results here */
){
  int rc;                    /* Status code */
  UnpackedRecord *pIdxKey;   /* Unpacked index key */
  char aSpace[150];          /* Temp space for pIdxKey - to avoid a malloc */
  char *pFree = 0;

  if( pKey ){
    assert( nKey==(i64)(int)nKey );
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pCur->pKeyInfo, aSpace, sizeof(aSpace), &pFree
    );
    if( pIdxKey==0 ) return SQLITE_NOMEM;
    sqlite3VdbeRecordUnpack(pCur->pKeyInfo, (int)nKey, pKey, pIdxKey);
  }else{
    pIdxKey = 0;
  }
  rc = sqlite3BtreeMovetoUnpacked(pCur, pIdxKey, nKey, bias, pRes);
  if( pFree ){
    sqlite3DbFree(pCur->pKeyInfo->db, pFree);
  }
  return rc;
}

/*
** Restore the cursor to the position it was in (or as close to as possible)
** when saveCursorPosition() was called. Note that this call deletes the 
50003
50004
50005
50006
50007
50008
50009
50010
50011
50012
50013
50014
50015
50016
50017
50018
50019
50020
50021
50022
50023
50024
50025
50026
50027
50028
50029
50030
50031
50032

  /* Only a BTREE_SINGLE database can be BTREE_UNORDERED */
  assert( (flags & BTREE_UNORDERED)==0 || (flags & BTREE_SINGLE)!=0 );

  /* A BTREE_SINGLE database is always a temporary and/or ephemeral */
  assert( (flags & BTREE_SINGLE)==0 || isTempDb );

  /* The BTREE_SORTER flag is only used if SQLITE_OMIT_MERGE_SORT is undef */
#ifdef SQLITE_OMIT_MERGE_SORT
  assert( (flags & BTREE_SORTER)==0 );
#endif

  /* BTREE_SORTER is always on a BTREE_SINGLE, BTREE_OMIT_JOURNAL */
  assert( (flags & BTREE_SORTER)==0 ||
          (flags & (BTREE_SINGLE|BTREE_OMIT_JOURNAL))
                                        ==(BTREE_SINGLE|BTREE_OMIT_JOURNAL) );

  if( db->flags & SQLITE_NoReadlock ){
    flags |= BTREE_NO_READLOCK;
  }
  if( isMemdb ){
    flags |= BTREE_MEMORY;
    flags &= ~BTREE_SORTER;
  }
  if( (vfsFlags & SQLITE_OPEN_MAIN_DB)!=0 && (isMemdb || isTempDb) ){
    vfsFlags = (vfsFlags & ~SQLITE_OPEN_MAIN_DB) | SQLITE_OPEN_TEMP_DB;
  }
  p = sqlite3MallocZero(sizeof(Btree));
  if( !p ){
    return SQLITE_NOMEM;







<
<
<
<
<
<
<
<
<
<





<







49991
49992
49993
49994
49995
49996
49997










49998
49999
50000
50001
50002

50003
50004
50005
50006
50007
50008
50009

  /* Only a BTREE_SINGLE database can be BTREE_UNORDERED */
  assert( (flags & BTREE_UNORDERED)==0 || (flags & BTREE_SINGLE)!=0 );

  /* A BTREE_SINGLE database is always a temporary and/or ephemeral */
  assert( (flags & BTREE_SINGLE)==0 || isTempDb );











  if( db->flags & SQLITE_NoReadlock ){
    flags |= BTREE_NO_READLOCK;
  }
  if( isMemdb ){
    flags |= BTREE_MEMORY;

  }
  if( (vfsFlags & SQLITE_OPEN_MAIN_DB)!=0 && (isMemdb || isTempDb) ){
    vfsFlags = (vfsFlags & ~SQLITE_OPEN_MAIN_DB) | SQLITE_OPEN_TEMP_DB;
  }
  p = sqlite3MallocZero(sizeof(Btree));
  if( !p ){
    return SQLITE_NOMEM;
55565
55566
55567
55568
55569
55570
55571
55572
55573
55574
55575
55576
55577
55578
55579
55580
55581
55582
55583
55584
55585
55586
55587
55588
    */
    zeroPage(pPage, PTF_INTKEY|PTF_LEAF );
    releasePage(pPage);
  }
  return rc;  
}
SQLITE_PRIVATE int sqlite3BtreeDropTable(Btree *p, int iTable, int *piMoved){
  BtShared *pBt = p->pBt;
  int rc;
  sqlite3BtreeEnter(p);
  if( (pBt->openFlags&BTREE_SINGLE) ){
    pBt->nPage = 0;
    sqlite3PagerTruncateImage(pBt->pPager, 1);
    rc = newDatabase(pBt);
  }else{
    rc = btreeDropTable(p, iTable, piMoved);
  }
  sqlite3BtreeLeave(p);
  return rc;
}


/*
** This function may only be called if the b-tree connection already







<


<
<
<
<
<
|
<







55542
55543
55544
55545
55546
55547
55548

55549
55550





55551

55552
55553
55554
55555
55556
55557
55558
    */
    zeroPage(pPage, PTF_INTKEY|PTF_LEAF );
    releasePage(pPage);
  }
  return rc;  
}
SQLITE_PRIVATE int sqlite3BtreeDropTable(Btree *p, int iTable, int *piMoved){

  int rc;
  sqlite3BtreeEnter(p);





  rc = btreeDropTable(p, iTable, piMoved);

  sqlite3BtreeLeave(p);
  return rc;
}


/*
** This function may only be called if the b-tree connection already
58763
58764
58765
58766
58767
58768
58769
58770
58771
58772
58773
58774
58775
58776
58777
    }else if( opcode==OP_VFilter ){
      int n;
      assert( p->nOp - i >= 3 );
      assert( pOp[-1].opcode==OP_Integer );
      n = pOp[-1].p1;
      if( n>nMaxArgs ) nMaxArgs = n;
#endif
    }else if( opcode==OP_Next ){
      pOp->p4.xAdvance = sqlite3BtreeNext;
      pOp->p4type = P4_ADVANCE;
    }else if( opcode==OP_Prev ){
      pOp->p4.xAdvance = sqlite3BtreePrevious;
      pOp->p4type = P4_ADVANCE;
    }








|







58733
58734
58735
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    }else if( opcode==OP_VFilter ){
      int n;
      assert( p->nOp - i >= 3 );
      assert( pOp[-1].opcode==OP_Integer );
      n = pOp[-1].p1;
      if( n>nMaxArgs ) nMaxArgs = n;
#endif
    }else if( opcode==OP_Next || opcode==OP_SorterNext ){
      pOp->p4.xAdvance = sqlite3BtreeNext;
      pOp->p4type = P4_ADVANCE;
    }else if( opcode==OP_Prev ){
      pOp->p4.xAdvance = sqlite3BtreePrevious;
      pOp->p4type = P4_ADVANCE;
    }

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*/
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *pVdbe, SubProgram *p){
  p->pNext = pVdbe->pProgram;
  pVdbe->pProgram = p;
}

/*
** Change N opcodes starting at addr to No-ops.
*/
SQLITE_PRIVATE void sqlite3VdbeChangeToNoop(Vdbe *p, int addr, int N){
  if( p->aOp ){
    VdbeOp *pOp = &p->aOp[addr];
    sqlite3 *db = p->db;
    while( N-- ){
      freeP4(db, pOp->p4type, pOp->p4.p);
      memset(pOp, 0, sizeof(pOp[0]));
      pOp->opcode = OP_Noop;
      pOp++;
    }
  }
}

/*
** Change the value of the P4 operand for a specific instruction.
** This routine is useful when a large program is loaded from a
** static array using sqlite3VdbeAddOpList but we want to make a







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*/
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *pVdbe, SubProgram *p){
  p->pNext = pVdbe->pProgram;
  pVdbe->pProgram = p;
}

/*
** Change the opcode at addr into OP_Noop
*/
SQLITE_PRIVATE void sqlite3VdbeChangeToNoop(Vdbe *p, int addr){
  if( p->aOp ){
    VdbeOp *pOp = &p->aOp[addr];
    sqlite3 *db = p->db;

    freeP4(db, pOp->p4type, pOp->p4.p);
    memset(pOp, 0, sizeof(pOp[0]));
    pOp->opcode = OP_Noop;


  }
}

/*
** Change the value of the P4 operand for a specific instruction.
** This routine is useful when a large program is loaded from a
** static array using sqlite3VdbeAddOpList but we want to make a
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** having to double-check to make sure that the result is non-negative. But
** if SQLITE_OMIT_TRACE is defined, the OP_Trace is omitted and we do need to
** check the value of p->nOp-1 before continuing.
*/
SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){
  /* C89 specifies that the constant "dummy" will be initialized to all
  ** zeros, which is correct.  MSVC generates a warning, nevertheless. */
  static const VdbeOp dummy;  /* Ignore the MSVC warning about no initializer */
  assert( p->magic==VDBE_MAGIC_INIT );
  if( addr<0 ){
#ifdef SQLITE_OMIT_TRACE
    if( p->nOp==0 ) return (VdbeOp*)&dummy;
#endif
    addr = p->nOp - 1;
  }







|







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** having to double-check to make sure that the result is non-negative. But
** if SQLITE_OMIT_TRACE is defined, the OP_Trace is omitted and we do need to
** check the value of p->nOp-1 before continuing.
*/
SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){
  /* C89 specifies that the constant "dummy" will be initialized to all
  ** zeros, which is correct.  MSVC generates a warning, nevertheless. */
  static VdbeOp dummy;  /* Ignore the MSVC warning about no initializer */
  assert( p->magic==VDBE_MAGIC_INIT );
  if( addr<0 ){
#ifdef SQLITE_OMIT_TRACE
    if( p->nOp==0 ) return (VdbeOp*)&dummy;
#endif
    addr = p->nOp - 1;
  }
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      }
      return len;
    }
  }
  return 0;
}


/*
** Given the nKey-byte encoding of a record in pKey[], parse the
** record into a UnpackedRecord structure.  Return a pointer to
** that structure.

**
** The calling function might provide szSpace bytes of memory

** space at pSpace.  This space can be used to hold the returned
** VDbeParsedRecord structure if it is large enough.  If it is
** not big enough, space is obtained from sqlite3_malloc().

**
** The returned structure should be closed by a call to
** sqlite3VdbeDeleteUnpackedRecord().
*/ 
SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeRecordUnpack(
  KeyInfo *pKeyInfo,     /* Information about the record format */
  int nKey,              /* Size of the binary record */
  const void *pKey,      /* The binary record */
  char *pSpace,          /* Unaligned space available to hold the object */
  int szSpace            /* Size of pSpace[] in bytes */

){
  const unsigned char *aKey = (const unsigned char *)pKey;
  UnpackedRecord *p;  /* The unpacked record that we will return */
  int nByte;          /* Memory space needed to hold p, in bytes */
  int d;
  u32 idx;
  u16 u;              /* Unsigned loop counter */
  u32 szHdr;
  Mem *pMem;
  int nOff;           /* Increase pSpace by this much to 8-byte align it */
  
  /*
  ** We want to shift the pointer pSpace up such that it is 8-byte aligned.
  ** Thus, we need to calculate a value, nOff, between 0 and 7, to shift 
  ** it by.  If pSpace is already 8-byte aligned, nOff should be zero.
  */
  nOff = (8 - (SQLITE_PTR_TO_INT(pSpace) & 7)) & 7;
  pSpace += nOff;
  szSpace -= nOff;
  nByte = ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nField+1);
  if( nByte>szSpace ){
    p = sqlite3DbMallocRaw(pKeyInfo->db, nByte);

    if( p==0 ) return 0;
    p->flags = UNPACKED_NEED_FREE | UNPACKED_NEED_DESTROY;
  }else{
    p = (UnpackedRecord*)pSpace;
    p->flags = UNPACKED_NEED_DESTROY;
  }


  p->pKeyInfo = pKeyInfo;
  p->nField = pKeyInfo->nField + 1;


  p->aMem = pMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))];



















  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
  idx = getVarint32(aKey, szHdr);
  d = szHdr;
  u = 0;
  while( idx<szHdr && u<p->nField && d<=nKey ){
    u32 serial_type;

    idx += getVarint32(&aKey[idx], serial_type);
    pMem->enc = pKeyInfo->enc;
    pMem->db = pKeyInfo->db;
    /* pMem->flags = 0; // sqlite3VdbeSerialGet() will set this for us */
    pMem->zMalloc = 0;
    d += sqlite3VdbeSerialGet(&aKey[d], serial_type, pMem);
    pMem++;
    u++;
  }
  assert( u<=pKeyInfo->nField + 1 );
  p->nField = u;
  return (void*)p;
}

/*
** This routine destroys a UnpackedRecord object.
*/
SQLITE_PRIVATE void sqlite3VdbeDeleteUnpackedRecord(UnpackedRecord *p){
#ifdef SQLITE_DEBUG
  int i;
  Mem *pMem;

  assert( p!=0 );
  assert( p->flags & UNPACKED_NEED_DESTROY );
  for(i=0, pMem=p->aMem; i<p->nField; i++, pMem++){
    /* The unpacked record is always constructed by the
    ** sqlite3VdbeUnpackRecord() function above, which makes all
    ** strings and blobs static.  And none of the elements are
    ** ever transformed, so there is never anything to delete.
    */
    if( NEVER(pMem->zMalloc) ) sqlite3VdbeMemRelease(pMem);
  }
#endif
  if( p->flags & UNPACKED_NEED_FREE ){
    sqlite3DbFree(p->pKeyInfo->db, p);
  }
}

/*
** This function compares the two table rows or index records
** specified by {nKey1, pKey1} and pPKey2.  It returns a negative, zero
** or positive integer if key1 is less than, equal to or 
** greater than key2.  The {nKey1, pKey1} key must be a blob







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      }
      return len;
    }
  }
  return 0;
}


/*

** This routine is used to allocate sufficient space for an UnpackedRecord
** structure large enough to be used with sqlite3VdbeRecordUnpack() if
** the first argument is a pointer to KeyInfo structure pKeyInfo.
**
** The space is either allocated using sqlite3DbMallocRaw() or from within
** the unaligned buffer passed via the second and third arguments (presumably
** stack space). If the former, then *ppFree is set to a pointer that should
** be eventually freed by the caller using sqlite3DbFree(). Or, if the 
** allocation comes from the pSpace/szSpace buffer, *ppFree is set to NULL
** before returning.
**
** If an OOM error occurs, NULL is returned.

*/
SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord(
  KeyInfo *pKeyInfo,              /* Description of the record */


  char *pSpace,                   /* Unaligned space available */
  int szSpace,                    /* Size of pSpace[] in bytes */
  char **ppFree                   /* OUT: Caller should free this pointer */
){

  UnpackedRecord *p;              /* Unpacked record to return */
  int nOff;                       /* Increment pSpace by nOff to align it */


  int nByte;                      /* Number of bytes required for *p */





  /* We want to shift the pointer pSpace up such that it is 8-byte aligned.
  ** Thus, we need to calculate a value, nOff, between 0 and 7, to shift 
  ** it by.  If pSpace is already 8-byte aligned, nOff should be zero.
  */
  nOff = (8 - (SQLITE_PTR_TO_INT(pSpace) & 7)) & 7;


  nByte = ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nField+1);
  if( nByte>szSpace+nOff ){
    p = (UnpackedRecord *)sqlite3DbMallocRaw(pKeyInfo->db, nByte);
    *ppFree = (char *)p;
    if( !p ) return 0;

  }else{
    p = (UnpackedRecord*)&pSpace[nOff];
    *ppFree = 0;
  }

  p->aMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))];
  p->pKeyInfo = pKeyInfo;
  p->nField = pKeyInfo->nField + 1;
  return p;
}

/*
** Given the nKey-byte encoding of a record in pKey[], populate the 
** UnpackedRecord structure indicated by the fourth argument with the
** contents of the decoded record.
*/ 
SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(
  KeyInfo *pKeyInfo,     /* Information about the record format */
  int nKey,              /* Size of the binary record */
  const void *pKey,      /* The binary record */
  UnpackedRecord *p      /* Populate this structure before returning. */
){
  const unsigned char *aKey = (const unsigned char *)pKey;
  int d; 
  u32 idx;                        /* Offset in aKey[] to read from */
  u16 u;                          /* Unsigned loop counter */
  u32 szHdr;
  Mem *pMem = p->aMem;

  p->flags = 0;
  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
  idx = getVarint32(aKey, szHdr);
  d = szHdr;
  u = 0;
  while( idx<szHdr && u<p->nField && d<=nKey ){
    u32 serial_type;

    idx += getVarint32(&aKey[idx], serial_type);
    pMem->enc = pKeyInfo->enc;
    pMem->db = pKeyInfo->db;
    /* pMem->flags = 0; // sqlite3VdbeSerialGet() will set this for us */
    pMem->zMalloc = 0;
    d += sqlite3VdbeSerialGet(&aKey[d], serial_type, pMem);
    pMem++;
    u++;
  }
  assert( u<=pKeyInfo->nField + 1 );
  p->nField = u;

























}

/*
** This function compares the two table rows or index records
** specified by {nKey1, pKey1} and pPKey2.  It returns a negative, zero
** or positive integer if key1 is less than, equal to or 
** greater than key2.  The {nKey1, pKey1} key must be a blob
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      Btree *pX;
      VdbeCursor *pCur;
      Db *pDb;
    } aw;
    struct OP_OpenEphemeral_stack_vars {
      VdbeCursor *pCx;
    } ax;



    struct OP_OpenPseudo_stack_vars {
      VdbeCursor *pCx;
    } ay;
    struct OP_SeekGt_stack_vars {
      int res;
      int oc;
      VdbeCursor *pC;
      UnpackedRecord r;
      int nField;
      i64 iKey;      /* The rowid we are to seek to */
    } az;
    struct OP_Seek_stack_vars {
      VdbeCursor *pC;
    } ba;
    struct OP_Found_stack_vars {
      int alreadyExists;
      VdbeCursor *pC;
      int res;

      UnpackedRecord *pIdxKey;
      UnpackedRecord r;
      char aTempRec[ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*3 + 7];
    } bb;
    struct OP_IsUnique_stack_vars {
      u16 ii;
      VdbeCursor *pCx;
      BtCursor *pCrsr;
      u16 nField;
      Mem *aMx;
      UnpackedRecord r;                  /* B-Tree index search key */
      i64 R;                             /* Rowid stored in register P3 */
    } bc;
    struct OP_NotExists_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
      u64 iKey;
    } bd;
    struct OP_NewRowid_stack_vars {
      i64 v;                 /* The new rowid */
      VdbeCursor *pC;        /* Cursor of table to get the new rowid */
      int res;               /* Result of an sqlite3BtreeLast() */
      int cnt;               /* Counter to limit the number of searches */
      Mem *pMem;             /* Register holding largest rowid for AUTOINCREMENT */
      VdbeFrame *pFrame;     /* Root frame of VDBE */
    } be;
    struct OP_InsertInt_stack_vars {
      Mem *pData;       /* MEM cell holding data for the record to be inserted */
      Mem *pKey;        /* MEM cell holding key  for the record */
      i64 iKey;         /* The integer ROWID or key for the record to be inserted */
      VdbeCursor *pC;   /* Cursor to table into which insert is written */
      int nZero;        /* Number of zero-bytes to append */
      int seekResult;   /* Result of prior seek or 0 if no USESEEKRESULT flag */
      const char *zDb;  /* database name - used by the update hook */
      const char *zTbl; /* Table name - used by the opdate hook */
      int op;           /* Opcode for update hook: SQLITE_UPDATE or SQLITE_INSERT */
    } bf;
    struct OP_Delete_stack_vars {
      i64 iKey;
      VdbeCursor *pC;
    } bg;







    struct OP_RowData_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      u32 n;
      i64 n64;
    } bh;
    struct OP_Rowid_stack_vars {
      VdbeCursor *pC;
      i64 v;
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
    } bi;
    struct OP_NullRow_stack_vars {
      VdbeCursor *pC;
    } bj;
    struct OP_Last_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
    } bk;
    struct OP_Rewind_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
    } bl;
    struct OP_Next_stack_vars {
      VdbeCursor *pC;
      int res;
    } bm;
    struct OP_IdxInsert_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int nKey;
      const char *zKey;
    } bn;
    struct OP_IdxDelete_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
      UnpackedRecord r;
    } bo;
    struct OP_IdxRowid_stack_vars {
      BtCursor *pCrsr;
      VdbeCursor *pC;
      i64 rowid;
    } bp;
    struct OP_IdxGE_stack_vars {
      VdbeCursor *pC;
      int res;
      UnpackedRecord r;
    } bq;
    struct OP_Destroy_stack_vars {
      int iMoved;
      int iCnt;
      Vdbe *pVdbe;
      int iDb;
    } br;
    struct OP_Clear_stack_vars {
      int nChange;
    } bs;
    struct OP_CreateTable_stack_vars {
      int pgno;
      int flags;
      Db *pDb;
    } bt;
    struct OP_ParseSchema_stack_vars {
      int iDb;
      const char *zMaster;
      char *zSql;
      InitData initData;
    } bu;
    struct OP_IntegrityCk_stack_vars {
      int nRoot;      /* Number of tables to check.  (Number of root pages.) */
      int *aRoot;     /* Array of rootpage numbers for tables to be checked */
      int j;          /* Loop counter */
      int nErr;       /* Number of errors reported */
      char *z;        /* Text of the error report */
      Mem *pnErr;     /* Register keeping track of errors remaining */
    } bv;
    struct OP_RowSetRead_stack_vars {
      i64 val;
    } bw;
    struct OP_RowSetTest_stack_vars {
      int iSet;
      int exists;
    } bx;
    struct OP_Program_stack_vars {
      int nMem;               /* Number of memory registers for sub-program */
      int nByte;              /* Bytes of runtime space required for sub-program */
      Mem *pRt;               /* Register to allocate runtime space */
      Mem *pMem;              /* Used to iterate through memory cells */
      Mem *pEnd;              /* Last memory cell in new array */
      VdbeFrame *pFrame;      /* New vdbe frame to execute in */
      SubProgram *pProgram;   /* Sub-program to execute */
      void *t;                /* Token identifying trigger */
    } by;
    struct OP_Param_stack_vars {
      VdbeFrame *pFrame;
      Mem *pIn;
    } bz;
    struct OP_MemMax_stack_vars {
      Mem *pIn1;
      VdbeFrame *pFrame;
    } ca;
    struct OP_AggStep_stack_vars {
      int n;
      int i;
      Mem *pMem;
      Mem *pRec;
      sqlite3_context ctx;
      sqlite3_value **apVal;
    } cb;
    struct OP_AggFinal_stack_vars {
      Mem *pMem;
    } cc;
    struct OP_Checkpoint_stack_vars {
      int i;                          /* Loop counter */
      int aRes[3];                    /* Results */
      Mem *pMem;                      /* Write results here */
    } cd;
    struct OP_JournalMode_stack_vars {
      Btree *pBt;                     /* Btree to change journal mode of */
      Pager *pPager;                  /* Pager associated with pBt */
      int eNew;                       /* New journal mode */
      int eOld;                       /* The old journal mode */
      const char *zFilename;          /* Name of database file for pPager */
    } ce;
    struct OP_IncrVacuum_stack_vars {
      Btree *pBt;
    } cf;
    struct OP_VBegin_stack_vars {
      VTable *pVTab;
    } cg;
    struct OP_VOpen_stack_vars {
      VdbeCursor *pCur;
      sqlite3_vtab_cursor *pVtabCursor;
      sqlite3_vtab *pVtab;
      sqlite3_module *pModule;
    } ch;
    struct OP_VFilter_stack_vars {
      int nArg;
      int iQuery;
      const sqlite3_module *pModule;
      Mem *pQuery;
      Mem *pArgc;
      sqlite3_vtab_cursor *pVtabCursor;
      sqlite3_vtab *pVtab;
      VdbeCursor *pCur;
      int res;
      int i;
      Mem **apArg;
    } ci;
    struct OP_VColumn_stack_vars {
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
      Mem *pDest;
      sqlite3_context sContext;
    } cj;
    struct OP_VNext_stack_vars {
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
      int res;
      VdbeCursor *pCur;
    } ck;
    struct OP_VRename_stack_vars {
      sqlite3_vtab *pVtab;
      Mem *pName;
    } cl;
    struct OP_VUpdate_stack_vars {
      sqlite3_vtab *pVtab;
      sqlite3_module *pModule;
      int nArg;
      int i;
      sqlite_int64 rowid;
      Mem **apArg;
      Mem *pX;
    } cm;
    struct OP_Trace_stack_vars {
      char *zTrace;
      char *z;
    } cn;
  } u;
  /* End automatically generated code
  ********************************************************************/

  assert( p->magic==VDBE_MAGIC_RUN );  /* sqlite3_step() verifies this */
  sqlite3VdbeEnter(p);
  if( p->rc==SQLITE_NOMEM ){







>
>
>


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>



|








|





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>
>
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>
>





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|


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|





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|








|



|







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64096
      Btree *pX;
      VdbeCursor *pCur;
      Db *pDb;
    } aw;
    struct OP_OpenEphemeral_stack_vars {
      VdbeCursor *pCx;
    } ax;
    struct OP_SorterOpen_stack_vars {
      VdbeCursor *pCx;
    } ay;
    struct OP_OpenPseudo_stack_vars {
      VdbeCursor *pCx;
    } az;
    struct OP_SeekGt_stack_vars {
      int res;
      int oc;
      VdbeCursor *pC;
      UnpackedRecord r;
      int nField;
      i64 iKey;      /* The rowid we are to seek to */
    } ba;
    struct OP_Seek_stack_vars {
      VdbeCursor *pC;
    } bb;
    struct OP_Found_stack_vars {
      int alreadyExists;
      VdbeCursor *pC;
      int res;
      char *pFree;
      UnpackedRecord *pIdxKey;
      UnpackedRecord r;
      char aTempRec[ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*3 + 7];
    } bc;
    struct OP_IsUnique_stack_vars {
      u16 ii;
      VdbeCursor *pCx;
      BtCursor *pCrsr;
      u16 nField;
      Mem *aMx;
      UnpackedRecord r;                  /* B-Tree index search key */
      i64 R;                             /* Rowid stored in register P3 */
    } bd;
    struct OP_NotExists_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
      u64 iKey;
    } be;
    struct OP_NewRowid_stack_vars {
      i64 v;                 /* The new rowid */
      VdbeCursor *pC;        /* Cursor of table to get the new rowid */
      int res;               /* Result of an sqlite3BtreeLast() */
      int cnt;               /* Counter to limit the number of searches */
      Mem *pMem;             /* Register holding largest rowid for AUTOINCREMENT */
      VdbeFrame *pFrame;     /* Root frame of VDBE */
    } bf;
    struct OP_InsertInt_stack_vars {
      Mem *pData;       /* MEM cell holding data for the record to be inserted */
      Mem *pKey;        /* MEM cell holding key  for the record */
      i64 iKey;         /* The integer ROWID or key for the record to be inserted */
      VdbeCursor *pC;   /* Cursor to table into which insert is written */
      int nZero;        /* Number of zero-bytes to append */
      int seekResult;   /* Result of prior seek or 0 if no USESEEKRESULT flag */
      const char *zDb;  /* database name - used by the update hook */
      const char *zTbl; /* Table name - used by the opdate hook */
      int op;           /* Opcode for update hook: SQLITE_UPDATE or SQLITE_INSERT */
    } bg;
    struct OP_Delete_stack_vars {
      i64 iKey;
      VdbeCursor *pC;
    } bh;
    struct OP_SorterCompare_stack_vars {
      VdbeCursor *pC;
      int res;
    } bi;
    struct OP_SorterData_stack_vars {
      VdbeCursor *pC;
    } bj;
    struct OP_RowData_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      u32 n;
      i64 n64;
    } bk;
    struct OP_Rowid_stack_vars {
      VdbeCursor *pC;
      i64 v;
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
    } bl;
    struct OP_NullRow_stack_vars {
      VdbeCursor *pC;
    } bm;
    struct OP_Last_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
    } bn;
    struct OP_Rewind_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
    } bo;
    struct OP_Next_stack_vars {
      VdbeCursor *pC;
      int res;
    } bp;
    struct OP_IdxInsert_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int nKey;
      const char *zKey;
    } bq;
    struct OP_IdxDelete_stack_vars {
      VdbeCursor *pC;
      BtCursor *pCrsr;
      int res;
      UnpackedRecord r;
    } br;
    struct OP_IdxRowid_stack_vars {
      BtCursor *pCrsr;
      VdbeCursor *pC;
      i64 rowid;
    } bs;
    struct OP_IdxGE_stack_vars {
      VdbeCursor *pC;
      int res;
      UnpackedRecord r;
    } bt;
    struct OP_Destroy_stack_vars {
      int iMoved;
      int iCnt;
      Vdbe *pVdbe;
      int iDb;
    } bu;
    struct OP_Clear_stack_vars {
      int nChange;
    } bv;
    struct OP_CreateTable_stack_vars {
      int pgno;
      int flags;
      Db *pDb;
    } bw;
    struct OP_ParseSchema_stack_vars {
      int iDb;
      const char *zMaster;
      char *zSql;
      InitData initData;
    } bx;
    struct OP_IntegrityCk_stack_vars {
      int nRoot;      /* Number of tables to check.  (Number of root pages.) */
      int *aRoot;     /* Array of rootpage numbers for tables to be checked */
      int j;          /* Loop counter */
      int nErr;       /* Number of errors reported */
      char *z;        /* Text of the error report */
      Mem *pnErr;     /* Register keeping track of errors remaining */
    } by;
    struct OP_RowSetRead_stack_vars {
      i64 val;
    } bz;
    struct OP_RowSetTest_stack_vars {
      int iSet;
      int exists;
    } ca;
    struct OP_Program_stack_vars {
      int nMem;               /* Number of memory registers for sub-program */
      int nByte;              /* Bytes of runtime space required for sub-program */
      Mem *pRt;               /* Register to allocate runtime space */
      Mem *pMem;              /* Used to iterate through memory cells */
      Mem *pEnd;              /* Last memory cell in new array */
      VdbeFrame *pFrame;      /* New vdbe frame to execute in */
      SubProgram *pProgram;   /* Sub-program to execute */
      void *t;                /* Token identifying trigger */
    } cb;
    struct OP_Param_stack_vars {
      VdbeFrame *pFrame;
      Mem *pIn;
    } cc;
    struct OP_MemMax_stack_vars {
      Mem *pIn1;
      VdbeFrame *pFrame;
    } cd;
    struct OP_AggStep_stack_vars {
      int n;
      int i;
      Mem *pMem;
      Mem *pRec;
      sqlite3_context ctx;
      sqlite3_value **apVal;
    } ce;
    struct OP_AggFinal_stack_vars {
      Mem *pMem;
    } cf;
    struct OP_Checkpoint_stack_vars {
      int i;                          /* Loop counter */
      int aRes[3];                    /* Results */
      Mem *pMem;                      /* Write results here */
    } cg;
    struct OP_JournalMode_stack_vars {
      Btree *pBt;                     /* Btree to change journal mode of */
      Pager *pPager;                  /* Pager associated with pBt */
      int eNew;                       /* New journal mode */
      int eOld;                       /* The old journal mode */
      const char *zFilename;          /* Name of database file for pPager */
    } ch;
    struct OP_IncrVacuum_stack_vars {
      Btree *pBt;
    } ci;
    struct OP_VBegin_stack_vars {
      VTable *pVTab;
    } cj;
    struct OP_VOpen_stack_vars {
      VdbeCursor *pCur;
      sqlite3_vtab_cursor *pVtabCursor;
      sqlite3_vtab *pVtab;
      sqlite3_module *pModule;
    } ck;
    struct OP_VFilter_stack_vars {
      int nArg;
      int iQuery;
      const sqlite3_module *pModule;
      Mem *pQuery;
      Mem *pArgc;
      sqlite3_vtab_cursor *pVtabCursor;
      sqlite3_vtab *pVtab;
      VdbeCursor *pCur;
      int res;
      int i;
      Mem **apArg;
    } cl;
    struct OP_VColumn_stack_vars {
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
      Mem *pDest;
      sqlite3_context sContext;
    } cm;
    struct OP_VNext_stack_vars {
      sqlite3_vtab *pVtab;
      const sqlite3_module *pModule;
      int res;
      VdbeCursor *pCur;
    } cn;
    struct OP_VRename_stack_vars {
      sqlite3_vtab *pVtab;
      Mem *pName;
    } co;
    struct OP_VUpdate_stack_vars {
      sqlite3_vtab *pVtab;
      sqlite3_module *pModule;
      int nArg;
      int i;
      sqlite_int64 rowid;
      Mem **apArg;
      Mem *pX;
    } cp;
    struct OP_Trace_stack_vars {
      char *zTrace;
      char *z;
    } cq;
  } u;
  /* End automatically generated code
  ********************************************************************/

  assert( p->magic==VDBE_MAGIC_RUN );  /* sqlite3_step() verifies this */
  sqlite3VdbeEnter(p);
  if( p->rc==SQLITE_NOMEM ){
65586
65587
65588
65589
65590
65591
65592










65593
65594
65595
65596
65597
65598
65599
65600
65601
65602
65603
65604

65605
65606
65607
65608
65609
65610
65611
65612
65613
65614
65615
65616
65617
65618
65619
65620
65621
65622






65623
65624
65625
65626
65627
65628
65629
    sqlite3VdbeMemSetNull(pOut);
  }else{
    sqlite3VdbeMemSetInt64(pOut, ~sqlite3VdbeIntValue(pIn1));
  }
  break;
}











/* Opcode: If P1 P2 P3 * *
**
** Jump to P2 if the value in register P1 is true.  The value
** is considered true if it is numeric and non-zero.  If the value
** in P1 is NULL then take the jump if P3 is true.
*/
/* Opcode: IfNot P1 P2 P3 * *
**
** Jump to P2 if the value in register P1 is False.  The value
** is considered true if it has a numeric value of zero.  If the value
** in P1 is NULL then take the jump if P3 is true.
*/

case OP_If:                 /* jump, in1 */
case OP_IfNot: {            /* jump, in1 */
#if 0  /* local variables moved into u.al */
  int c;
#endif /* local variables moved into u.al */
  pIn1 = &aMem[pOp->p1];
  if( pIn1->flags & MEM_Null ){
    u.al.c = pOp->p3;
  }else{
#ifdef SQLITE_OMIT_FLOATING_POINT
    u.al.c = sqlite3VdbeIntValue(pIn1)!=0;
#else
    u.al.c = sqlite3VdbeRealValue(pIn1)!=0.0;
#endif
    if( pOp->opcode==OP_IfNot ) u.al.c = !u.al.c;
  }
  if( u.al.c ){
    pc = pOp->p2-1;






  }
  break;
}

/* Opcode: IsNull P1 P2 * * *
**
** Jump to P2 if the value in register P1 is NULL.







>
>
>
>
>
>
>
>
>
>












>


















>
>
>
>
>
>







65552
65553
65554
65555
65556
65557
65558
65559
65560
65561
65562
65563
65564
65565
65566
65567
65568
65569
65570
65571
65572
65573
65574
65575
65576
65577
65578
65579
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65581
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65599
65600
65601
65602
65603
65604
65605
65606
65607
65608
65609
65610
65611
65612
    sqlite3VdbeMemSetNull(pOut);
  }else{
    sqlite3VdbeMemSetInt64(pOut, ~sqlite3VdbeIntValue(pIn1));
  }
  break;
}

/* Opcode: Once P1 P2 * * *
**
** Jump to P2 if the value in register P1 is a not null or zero.  If
** the value is NULL or zero, fall through and change the P1 register
** to an integer 1.
**
** When P1 is not used otherwise in a program, this opcode falls through
** once and jumps on all subsequent invocations.  It is the equivalent
** of "OP_If P1 P2", followed by "OP_Integer 1 P1".
*/
/* Opcode: If P1 P2 P3 * *
**
** Jump to P2 if the value in register P1 is true.  The value
** is considered true if it is numeric and non-zero.  If the value
** in P1 is NULL then take the jump if P3 is true.
*/
/* Opcode: IfNot P1 P2 P3 * *
**
** Jump to P2 if the value in register P1 is False.  The value
** is considered true if it has a numeric value of zero.  If the value
** in P1 is NULL then take the jump if P3 is true.
*/
case OP_Once:               /* jump, in1 */
case OP_If:                 /* jump, in1 */
case OP_IfNot: {            /* jump, in1 */
#if 0  /* local variables moved into u.al */
  int c;
#endif /* local variables moved into u.al */
  pIn1 = &aMem[pOp->p1];
  if( pIn1->flags & MEM_Null ){
    u.al.c = pOp->p3;
  }else{
#ifdef SQLITE_OMIT_FLOATING_POINT
    u.al.c = sqlite3VdbeIntValue(pIn1)!=0;
#else
    u.al.c = sqlite3VdbeRealValue(pIn1)!=0.0;
#endif
    if( pOp->opcode==OP_IfNot ) u.al.c = !u.al.c;
  }
  if( u.al.c ){
    pc = pOp->p2-1;
  }else if( pOp->opcode==OP_Once ){
    assert( (pIn1->flags & (MEM_Agg|MEM_Dyn|MEM_RowSet|MEM_Frame))==0 );
    memAboutToChange(p, pIn1);
    pIn1->flags = MEM_Int;
    pIn1->u.i = 1;
    REGISTER_TRACE(pOp->p1, pIn1);
  }
  break;
}

/* Opcode: IsNull P1 P2 * * *
**
** Jump to P2 if the value in register P1 is NULL.
66751
66752
66753
66754
66755
66756
66757
66758
66759
66760
66761
66762
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66765
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66771
66772
66773
66774
66775
66776
66777
66778
66779
66780
66781
66782
66783
66784
66785
/* Opcode: OpenAutoindex P1 P2 * P4 *
**
** This opcode works the same as OP_OpenEphemeral.  It has a
** different name to distinguish its use.  Tables created using
** by this opcode will be used for automatically created transient
** indices in joins.
*/
/* Opcode: OpenSorter P1 P2 * P4 *
**
** This opcode works like OP_OpenEphemeral except that it opens
** a transient index that is specifically designed to sort large
** tables using an external merge-sort algorithm.
*/
case OP_OpenSorter: 
case OP_OpenAutoindex: 
case OP_OpenEphemeral: {
#if 0  /* local variables moved into u.ax */
  VdbeCursor *pCx;
#endif /* local variables moved into u.ax */
  static const int vfsFlags =
      SQLITE_OPEN_READWRITE |
      SQLITE_OPEN_CREATE |
      SQLITE_OPEN_EXCLUSIVE |
      SQLITE_OPEN_DELETEONCLOSE |
      SQLITE_OPEN_TRANSIENT_DB;

  assert( pOp->p1>=0 );
  assert( (pOp->opcode==OP_OpenSorter)==((pOp->p5 & BTREE_SORTER)!=0) );
  u.ax.pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, 1);
  if( u.ax.pCx==0 ) goto no_mem;
  u.ax.pCx->nullRow = 1;
  rc = sqlite3BtreeOpen(db->pVfs, 0, db, &u.ax.pCx->pBt,
                        BTREE_OMIT_JOURNAL | BTREE_SINGLE | pOp->p5, vfsFlags);
  if( rc==SQLITE_OK ){
    rc = sqlite3BtreeBeginTrans(u.ax.pCx->pBt, 1);







<
<
<
<
<
<
<













<







66734
66735
66736
66737
66738
66739
66740







66741
66742
66743
66744
66745
66746
66747
66748
66749
66750
66751
66752
66753

66754
66755
66756
66757
66758
66759
66760
/* Opcode: OpenAutoindex P1 P2 * P4 *
**
** This opcode works the same as OP_OpenEphemeral.  It has a
** different name to distinguish its use.  Tables created using
** by this opcode will be used for automatically created transient
** indices in joins.
*/







case OP_OpenAutoindex: 
case OP_OpenEphemeral: {
#if 0  /* local variables moved into u.ax */
  VdbeCursor *pCx;
#endif /* local variables moved into u.ax */
  static const int vfsFlags =
      SQLITE_OPEN_READWRITE |
      SQLITE_OPEN_CREATE |
      SQLITE_OPEN_EXCLUSIVE |
      SQLITE_OPEN_DELETEONCLOSE |
      SQLITE_OPEN_TRANSIENT_DB;

  assert( pOp->p1>=0 );

  u.ax.pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, 1);
  if( u.ax.pCx==0 ) goto no_mem;
  u.ax.pCx->nullRow = 1;
  rc = sqlite3BtreeOpen(db->pVfs, 0, db, &u.ax.pCx->pBt,
                        BTREE_OMIT_JOURNAL | BTREE_SINGLE | pOp->p5, vfsFlags);
  if( rc==SQLITE_OK ){
    rc = sqlite3BtreeBeginTrans(u.ax.pCx->pBt, 1);
66805
66806
66807
66808
66809
66810
66811













66812




66813
66814
66815



66816
66817
66818
66819
66820
66821
66822
66823
66824
66825
66826
66827
66828
66829
66830
66831
66832
66833
66834
66835
66836
66837
66838
66839
66840
66841
66842
66843
66844
66845
66846
66847
66848
66849
66850
66851
66852
66853
    }else{
      rc = sqlite3BtreeCursor(u.ax.pCx->pBt, MASTER_ROOT, 1, 0, u.ax.pCx->pCursor);
      u.ax.pCx->isTable = 1;
    }
  }
  u.ax.pCx->isOrdered = (pOp->p5!=BTREE_UNORDERED);
  u.ax.pCx->isIndex = !u.ax.pCx->isTable;













#ifndef SQLITE_OMIT_MERGE_SORT




  if( rc==SQLITE_OK && pOp->opcode==OP_OpenSorter ){
    rc = sqlite3VdbeSorterInit(db, u.ax.pCx);
  }



#endif
  break;
}

/* Opcode: OpenPseudo P1 P2 P3 * *
**
** Open a new cursor that points to a fake table that contains a single
** row of data.  The content of that one row in the content of memory
** register P2.  In other words, cursor P1 becomes an alias for the 
** MEM_Blob content contained in register P2.
**
** A pseudo-table created by this opcode is used to hold a single
** row output from the sorter so that the row can be decomposed into
** individual columns using the OP_Column opcode.  The OP_Column opcode
** is the only cursor opcode that works with a pseudo-table.
**
** P3 is the number of fields in the records that will be stored by
** the pseudo-table.
*/
case OP_OpenPseudo: {
#if 0  /* local variables moved into u.ay */
  VdbeCursor *pCx;
#endif /* local variables moved into u.ay */

  assert( pOp->p1>=0 );
  u.ay.pCx = allocateCursor(p, pOp->p1, pOp->p3, -1, 0);
  if( u.ay.pCx==0 ) goto no_mem;
  u.ay.pCx->nullRow = 1;
  u.ay.pCx->pseudoTableReg = pOp->p2;
  u.ay.pCx->isTable = 1;
  u.ay.pCx->isIndex = 0;
  break;
}

/* Opcode: Close P1 * * * *
**
** Close a cursor previously opened as P1.  If P1 is not
** currently open, this instruction is a no-op.







>
>
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66780
66781
66782
66783
66784
66785
66786
66787
66788
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66790
66791
66792
66793
66794
66795
66796
66797
66798
66799
66800
66801
66802
66803
66804
66805
66806

66807
66808
66809
66810
66811
66812
66813
66814
66815
66816
66817
66818
66819
66820
66821
66822
66823
66824
66825
66826
66827
66828
66829
66830
66831
66832
66833
66834
66835
66836
66837
66838
66839
66840
66841
66842
66843
66844
66845
66846
66847
    }else{
      rc = sqlite3BtreeCursor(u.ax.pCx->pBt, MASTER_ROOT, 1, 0, u.ax.pCx->pCursor);
      u.ax.pCx->isTable = 1;
    }
  }
  u.ax.pCx->isOrdered = (pOp->p5!=BTREE_UNORDERED);
  u.ax.pCx->isIndex = !u.ax.pCx->isTable;
  break;
}

/* Opcode: OpenSorter P1 P2 * P4 *
**
** This opcode works like OP_OpenEphemeral except that it opens
** a transient index that is specifically designed to sort large
** tables using an external merge-sort algorithm.
*/
case OP_SorterOpen: {
#if 0  /* local variables moved into u.ay */
  VdbeCursor *pCx;
#endif /* local variables moved into u.ay */
#ifndef SQLITE_OMIT_MERGE_SORT
  u.ay.pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, 1);
  if( u.ay.pCx==0 ) goto no_mem;
  u.ay.pCx->pKeyInfo = pOp->p4.pKeyInfo;
  u.ay.pCx->pKeyInfo->enc = ENC(p->db);
  u.ay.pCx->isSorter = 1;
  rc = sqlite3VdbeSorterInit(db, u.ay.pCx);

#else
  pOp->opcode = OP_OpenEphemeral;
  pc--;
#endif
  break;
}

/* Opcode: OpenPseudo P1 P2 P3 * *
**
** Open a new cursor that points to a fake table that contains a single
** row of data.  The content of that one row in the content of memory
** register P2.  In other words, cursor P1 becomes an alias for the 
** MEM_Blob content contained in register P2.
**
** A pseudo-table created by this opcode is used to hold a single
** row output from the sorter so that the row can be decomposed into
** individual columns using the OP_Column opcode.  The OP_Column opcode
** is the only cursor opcode that works with a pseudo-table.
**
** P3 is the number of fields in the records that will be stored by
** the pseudo-table.
*/
case OP_OpenPseudo: {
#if 0  /* local variables moved into u.az */
  VdbeCursor *pCx;
#endif /* local variables moved into u.az */

  assert( pOp->p1>=0 );
  u.az.pCx = allocateCursor(p, pOp->p1, pOp->p3, -1, 0);
  if( u.az.pCx==0 ) goto no_mem;
  u.az.pCx->nullRow = 1;
  u.az.pCx->pseudoTableReg = pOp->p2;
  u.az.pCx->isTable = 1;
  u.az.pCx->isIndex = 0;
  break;
}

/* Opcode: Close P1 * * * *
**
** Close a cursor previously opened as P1.  If P1 is not
** currently open, this instruction is a no-op.
66911
66912
66913
66914
66915
66916
66917
66918
66919
66920
66921
66922
66923
66924
66925
66926
66927
66928
66929
66930
66931
66932
66933
66934
66935
66936
66937
66938
66939
66940
66941
66942
66943
66944
66945
66946
66947
66948
66949
66950
66951
66952
66953
66954
66955
66956
66957
66958
66959
66960
66961
66962
66963
66964
66965
66966
66967
66968
66969
66970
66971
66972
66973
66974
66975
66976
66977
66978
66979
66980
66981
66982
66983
66984
66985
66986
66987
66988
66989
66990
66991
66992
66993
66994
66995
66996
66997
66998
66999
67000
67001
67002
67003
67004
67005
67006
67007
67008
67009
67010
67011
67012
67013
67014
67015
67016
67017
67018
67019
67020
67021
67022
67023
67024
67025
67026
67027
67028
67029
67030
67031
67032
67033
67034
67035
67036
67037
67038
67039
67040
67041
67042
67043
67044
67045
67046
67047
67048
67049
67050
67051
67052
67053
67054
67055
67056
67057
67058
67059
67060
67061
67062
**
** See also: Found, NotFound, Distinct, SeekGt, SeekGe, SeekLt
*/
case OP_SeekLt:         /* jump, in3 */
case OP_SeekLe:         /* jump, in3 */
case OP_SeekGe:         /* jump, in3 */
case OP_SeekGt: {       /* jump, in3 */
#if 0  /* local variables moved into u.az */
  int res;
  int oc;
  VdbeCursor *pC;
  UnpackedRecord r;
  int nField;
  i64 iKey;      /* The rowid we are to seek to */
#endif /* local variables moved into u.az */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p2!=0 );
  u.az.pC = p->apCsr[pOp->p1];
  assert( u.az.pC!=0 );
  assert( u.az.pC->pseudoTableReg==0 );
  assert( OP_SeekLe == OP_SeekLt+1 );
  assert( OP_SeekGe == OP_SeekLt+2 );
  assert( OP_SeekGt == OP_SeekLt+3 );
  assert( u.az.pC->isOrdered );
  if( ALWAYS(u.az.pC->pCursor!=0) ){
    u.az.oc = pOp->opcode;
    u.az.pC->nullRow = 0;
    if( u.az.pC->isTable ){
      /* The input value in P3 might be of any type: integer, real, string,
      ** blob, or NULL.  But it needs to be an integer before we can do
      ** the seek, so covert it. */
      pIn3 = &aMem[pOp->p3];
      applyNumericAffinity(pIn3);
      u.az.iKey = sqlite3VdbeIntValue(pIn3);
      u.az.pC->rowidIsValid = 0;

      /* If the P3 value could not be converted into an integer without
      ** loss of information, then special processing is required... */
      if( (pIn3->flags & MEM_Int)==0 ){
        if( (pIn3->flags & MEM_Real)==0 ){
          /* If the P3 value cannot be converted into any kind of a number,
          ** then the seek is not possible, so jump to P2 */
          pc = pOp->p2 - 1;
          break;
        }
        /* If we reach this point, then the P3 value must be a floating
        ** point number. */
        assert( (pIn3->flags & MEM_Real)!=0 );

        if( u.az.iKey==SMALLEST_INT64 && (pIn3->r<(double)u.az.iKey || pIn3->r>0) ){
          /* The P3 value is too large in magnitude to be expressed as an
          ** integer. */
          u.az.res = 1;
          if( pIn3->r<0 ){
            if( u.az.oc>=OP_SeekGe ){  assert( u.az.oc==OP_SeekGe || u.az.oc==OP_SeekGt );
              rc = sqlite3BtreeFirst(u.az.pC->pCursor, &u.az.res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }else{
            if( u.az.oc<=OP_SeekLe ){  assert( u.az.oc==OP_SeekLt || u.az.oc==OP_SeekLe );
              rc = sqlite3BtreeLast(u.az.pC->pCursor, &u.az.res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }
          if( u.az.res ){
            pc = pOp->p2 - 1;
          }
          break;
        }else if( u.az.oc==OP_SeekLt || u.az.oc==OP_SeekGe ){
          /* Use the ceiling() function to convert real->int */
          if( pIn3->r > (double)u.az.iKey ) u.az.iKey++;
        }else{
          /* Use the floor() function to convert real->int */
          assert( u.az.oc==OP_SeekLe || u.az.oc==OP_SeekGt );
          if( pIn3->r < (double)u.az.iKey ) u.az.iKey--;
        }
      }
      rc = sqlite3BtreeMovetoUnpacked(u.az.pC->pCursor, 0, (u64)u.az.iKey, 0, &u.az.res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      if( u.az.res==0 ){
        u.az.pC->rowidIsValid = 1;
        u.az.pC->lastRowid = u.az.iKey;
      }
    }else{
      u.az.nField = pOp->p4.i;
      assert( pOp->p4type==P4_INT32 );
      assert( u.az.nField>0 );
      u.az.r.pKeyInfo = u.az.pC->pKeyInfo;
      u.az.r.nField = (u16)u.az.nField;

      /* The next line of code computes as follows, only faster:
      **   if( u.az.oc==OP_SeekGt || u.az.oc==OP_SeekLe ){
      **     u.az.r.flags = UNPACKED_INCRKEY;
      **   }else{
      **     u.az.r.flags = 0;
      **   }
      */
      u.az.r.flags = (u16)(UNPACKED_INCRKEY * (1 & (u.az.oc - OP_SeekLt)));
      assert( u.az.oc!=OP_SeekGt || u.az.r.flags==UNPACKED_INCRKEY );
      assert( u.az.oc!=OP_SeekLe || u.az.r.flags==UNPACKED_INCRKEY );
      assert( u.az.oc!=OP_SeekGe || u.az.r.flags==0 );
      assert( u.az.oc!=OP_SeekLt || u.az.r.flags==0 );

      u.az.r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
      { int i; for(i=0; i<u.az.r.nField; i++) assert( memIsValid(&u.az.r.aMem[i]) ); }
#endif
      ExpandBlob(u.az.r.aMem);
      rc = sqlite3BtreeMovetoUnpacked(u.az.pC->pCursor, &u.az.r, 0, 0, &u.az.res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      u.az.pC->rowidIsValid = 0;
    }
    u.az.pC->deferredMoveto = 0;
    u.az.pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
    if( u.az.oc>=OP_SeekGe ){  assert( u.az.oc==OP_SeekGe || u.az.oc==OP_SeekGt );
      if( u.az.res<0 || (u.az.res==0 && u.az.oc==OP_SeekGt) ){
        rc = sqlite3BtreeNext(u.az.pC->pCursor, &u.az.res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        u.az.pC->rowidIsValid = 0;
      }else{
        u.az.res = 0;
      }
    }else{
      assert( u.az.oc==OP_SeekLt || u.az.oc==OP_SeekLe );
      if( u.az.res>0 || (u.az.res==0 && u.az.oc==OP_SeekLt) ){
        rc = sqlite3BtreePrevious(u.az.pC->pCursor, &u.az.res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        u.az.pC->rowidIsValid = 0;
      }else{
        /* u.az.res might be negative because the table is empty.  Check to
        ** see if this is the case.
        */
        u.az.res = sqlite3BtreeEof(u.az.pC->pCursor);
      }
    }
    assert( pOp->p2>0 );
    if( u.az.res ){
      pc = pOp->p2 - 1;
    }
  }else{
    /* This happens when attempting to open the sqlite3_master table
    ** for read access returns SQLITE_EMPTY. In this case always
    ** take the jump (since there are no records in the table).
    */







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66905
66906
66907
66908
66909
66910
66911
66912
66913
66914
66915
66916
66917
66918
66919
66920
66921
66922
66923
66924
66925
66926
66927
66928
66929
66930
66931
66932
66933
66934
66935
66936
66937
66938
66939
66940
66941
66942
66943
66944
66945
66946
66947
66948
66949
66950
66951
66952
66953
66954
66955
66956
66957
66958
66959
66960
66961
66962
66963
66964
66965
66966
66967
66968
66969
66970
66971
66972
66973
66974
66975
66976
66977
66978
66979
66980
66981
66982
66983
66984
66985
66986
66987
66988
66989
66990
66991
66992
66993
66994
66995
66996
66997
66998
66999
67000
67001
67002
67003
67004
67005
67006
67007
67008
67009
67010
67011
67012
67013
67014
67015
67016
67017
67018
67019
67020
67021
67022
67023
67024
67025
67026
67027
67028
67029
67030
67031
67032
67033
67034
67035
67036
67037
67038
67039
67040
67041
67042
67043
67044
67045
67046
67047
67048
67049
67050
67051
67052
67053
67054
67055
67056
**
** See also: Found, NotFound, Distinct, SeekGt, SeekGe, SeekLt
*/
case OP_SeekLt:         /* jump, in3 */
case OP_SeekLe:         /* jump, in3 */
case OP_SeekGe:         /* jump, in3 */
case OP_SeekGt: {       /* jump, in3 */
#if 0  /* local variables moved into u.ba */
  int res;
  int oc;
  VdbeCursor *pC;
  UnpackedRecord r;
  int nField;
  i64 iKey;      /* The rowid we are to seek to */
#endif /* local variables moved into u.ba */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p2!=0 );
  u.ba.pC = p->apCsr[pOp->p1];
  assert( u.ba.pC!=0 );
  assert( u.ba.pC->pseudoTableReg==0 );
  assert( OP_SeekLe == OP_SeekLt+1 );
  assert( OP_SeekGe == OP_SeekLt+2 );
  assert( OP_SeekGt == OP_SeekLt+3 );
  assert( u.ba.pC->isOrdered );
  if( ALWAYS(u.ba.pC->pCursor!=0) ){
    u.ba.oc = pOp->opcode;
    u.ba.pC->nullRow = 0;
    if( u.ba.pC->isTable ){
      /* The input value in P3 might be of any type: integer, real, string,
      ** blob, or NULL.  But it needs to be an integer before we can do
      ** the seek, so covert it. */
      pIn3 = &aMem[pOp->p3];
      applyNumericAffinity(pIn3);
      u.ba.iKey = sqlite3VdbeIntValue(pIn3);
      u.ba.pC->rowidIsValid = 0;

      /* If the P3 value could not be converted into an integer without
      ** loss of information, then special processing is required... */
      if( (pIn3->flags & MEM_Int)==0 ){
        if( (pIn3->flags & MEM_Real)==0 ){
          /* If the P3 value cannot be converted into any kind of a number,
          ** then the seek is not possible, so jump to P2 */
          pc = pOp->p2 - 1;
          break;
        }
        /* If we reach this point, then the P3 value must be a floating
        ** point number. */
        assert( (pIn3->flags & MEM_Real)!=0 );

        if( u.ba.iKey==SMALLEST_INT64 && (pIn3->r<(double)u.ba.iKey || pIn3->r>0) ){
          /* The P3 value is too large in magnitude to be expressed as an
          ** integer. */
          u.ba.res = 1;
          if( pIn3->r<0 ){
            if( u.ba.oc>=OP_SeekGe ){  assert( u.ba.oc==OP_SeekGe || u.ba.oc==OP_SeekGt );
              rc = sqlite3BtreeFirst(u.ba.pC->pCursor, &u.ba.res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }else{
            if( u.ba.oc<=OP_SeekLe ){  assert( u.ba.oc==OP_SeekLt || u.ba.oc==OP_SeekLe );
              rc = sqlite3BtreeLast(u.ba.pC->pCursor, &u.ba.res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }
          if( u.ba.res ){
            pc = pOp->p2 - 1;
          }
          break;
        }else if( u.ba.oc==OP_SeekLt || u.ba.oc==OP_SeekGe ){
          /* Use the ceiling() function to convert real->int */
          if( pIn3->r > (double)u.ba.iKey ) u.ba.iKey++;
        }else{
          /* Use the floor() function to convert real->int */
          assert( u.ba.oc==OP_SeekLe || u.ba.oc==OP_SeekGt );
          if( pIn3->r < (double)u.ba.iKey ) u.ba.iKey--;
        }
      }
      rc = sqlite3BtreeMovetoUnpacked(u.ba.pC->pCursor, 0, (u64)u.ba.iKey, 0, &u.ba.res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      if( u.ba.res==0 ){
        u.ba.pC->rowidIsValid = 1;
        u.ba.pC->lastRowid = u.ba.iKey;
      }
    }else{
      u.ba.nField = pOp->p4.i;
      assert( pOp->p4type==P4_INT32 );
      assert( u.ba.nField>0 );
      u.ba.r.pKeyInfo = u.ba.pC->pKeyInfo;
      u.ba.r.nField = (u16)u.ba.nField;

      /* The next line of code computes as follows, only faster:
      **   if( u.ba.oc==OP_SeekGt || u.ba.oc==OP_SeekLe ){
      **     u.ba.r.flags = UNPACKED_INCRKEY;
      **   }else{
      **     u.ba.r.flags = 0;
      **   }
      */
      u.ba.r.flags = (u16)(UNPACKED_INCRKEY * (1 & (u.ba.oc - OP_SeekLt)));
      assert( u.ba.oc!=OP_SeekGt || u.ba.r.flags==UNPACKED_INCRKEY );
      assert( u.ba.oc!=OP_SeekLe || u.ba.r.flags==UNPACKED_INCRKEY );
      assert( u.ba.oc!=OP_SeekGe || u.ba.r.flags==0 );
      assert( u.ba.oc!=OP_SeekLt || u.ba.r.flags==0 );

      u.ba.r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
      { int i; for(i=0; i<u.ba.r.nField; i++) assert( memIsValid(&u.ba.r.aMem[i]) ); }
#endif
      ExpandBlob(u.ba.r.aMem);
      rc = sqlite3BtreeMovetoUnpacked(u.ba.pC->pCursor, &u.ba.r, 0, 0, &u.ba.res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      u.ba.pC->rowidIsValid = 0;
    }
    u.ba.pC->deferredMoveto = 0;
    u.ba.pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
    if( u.ba.oc>=OP_SeekGe ){  assert( u.ba.oc==OP_SeekGe || u.ba.oc==OP_SeekGt );
      if( u.ba.res<0 || (u.ba.res==0 && u.ba.oc==OP_SeekGt) ){
        rc = sqlite3BtreeNext(u.ba.pC->pCursor, &u.ba.res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        u.ba.pC->rowidIsValid = 0;
      }else{
        u.ba.res = 0;
      }
    }else{
      assert( u.ba.oc==OP_SeekLt || u.ba.oc==OP_SeekLe );
      if( u.ba.res>0 || (u.ba.res==0 && u.ba.oc==OP_SeekLt) ){
        rc = sqlite3BtreePrevious(u.ba.pC->pCursor, &u.ba.res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        u.ba.pC->rowidIsValid = 0;
      }else{
        /* u.ba.res might be negative because the table is empty.  Check to
        ** see if this is the case.
        */
        u.ba.res = sqlite3BtreeEof(u.ba.pC->pCursor);
      }
    }
    assert( pOp->p2>0 );
    if( u.ba.res ){
      pc = pOp->p2 - 1;
    }
  }else{
    /* This happens when attempting to open the sqlite3_master table
    ** for read access returns SQLITE_EMPTY. In this case always
    ** take the jump (since there are no records in the table).
    */
67071
67072
67073
67074
67075
67076
67077
67078
67079
67080
67081
67082
67083
67084
67085
67086
67087
67088
67089
67090
67091
67092
67093
67094
67095
67096
67097
67098
** for P1 to move so that it points to the rowid given by P2.
**
** This is actually a deferred seek.  Nothing actually happens until
** the cursor is used to read a record.  That way, if no reads
** occur, no unnecessary I/O happens.
*/
case OP_Seek: {    /* in2 */
#if 0  /* local variables moved into u.ba */
  VdbeCursor *pC;
#endif /* local variables moved into u.ba */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.ba.pC = p->apCsr[pOp->p1];
  assert( u.ba.pC!=0 );
  if( ALWAYS(u.ba.pC->pCursor!=0) ){
    assert( u.ba.pC->isTable );
    u.ba.pC->nullRow = 0;
    pIn2 = &aMem[pOp->p2];
    u.ba.pC->movetoTarget = sqlite3VdbeIntValue(pIn2);
    u.ba.pC->rowidIsValid = 0;
    u.ba.pC->deferredMoveto = 1;
  }
  break;
}
  

/* Opcode: Found P1 P2 P3 P4 *
**







|

|


|
|
|
|
|

|
|
|







67065
67066
67067
67068
67069
67070
67071
67072
67073
67074
67075
67076
67077
67078
67079
67080
67081
67082
67083
67084
67085
67086
67087
67088
67089
67090
67091
67092
** for P1 to move so that it points to the rowid given by P2.
**
** This is actually a deferred seek.  Nothing actually happens until
** the cursor is used to read a record.  That way, if no reads
** occur, no unnecessary I/O happens.
*/
case OP_Seek: {    /* in2 */
#if 0  /* local variables moved into u.bb */
  VdbeCursor *pC;
#endif /* local variables moved into u.bb */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bb.pC = p->apCsr[pOp->p1];
  assert( u.bb.pC!=0 );
  if( ALWAYS(u.bb.pC->pCursor!=0) ){
    assert( u.bb.pC->isTable );
    u.bb.pC->nullRow = 0;
    pIn2 = &aMem[pOp->p2];
    u.bb.pC->movetoTarget = sqlite3VdbeIntValue(pIn2);
    u.bb.pC->rowidIsValid = 0;
    u.bb.pC->deferredMoveto = 1;
  }
  break;
}
  

/* Opcode: Found P1 P2 P3 P4 *
**
67116
67117
67118
67119
67120
67121
67122
67123
67124
67125
67126

67127
67128
67129
67130
67131
67132
67133
67134
67135
67136
67137
67138
67139
67140
67141
67142
67143
67144
67145
67146
67147
67148
67149
67150
67151
67152
67153
67154




67155
67156
67157
67158
67159
67160
67161
67162
67163
67164
67165
67166
67167
67168
67169
67170
67171
67172
67173
67174
67175
67176
67177
67178
67179
67180
67181
67182
67183
67184
67185
** falls through to the next instruction and P1 is left pointing at the
** matching entry.
**
** See also: Found, NotExists, IsUnique
*/
case OP_NotFound:       /* jump, in3 */
case OP_Found: {        /* jump, in3 */
#if 0  /* local variables moved into u.bb */
  int alreadyExists;
  VdbeCursor *pC;
  int res;

  UnpackedRecord *pIdxKey;
  UnpackedRecord r;
  char aTempRec[ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*3 + 7];
#endif /* local variables moved into u.bb */

#ifdef SQLITE_TEST
  sqlite3_found_count++;
#endif

  u.bb.alreadyExists = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p4type==P4_INT32 );
  u.bb.pC = p->apCsr[pOp->p1];
  assert( u.bb.pC!=0 );
  pIn3 = &aMem[pOp->p3];
  if( ALWAYS(u.bb.pC->pCursor!=0) ){

    assert( u.bb.pC->isTable==0 );
    if( pOp->p4.i>0 ){
      u.bb.r.pKeyInfo = u.bb.pC->pKeyInfo;
      u.bb.r.nField = (u16)pOp->p4.i;
      u.bb.r.aMem = pIn3;
#ifdef SQLITE_DEBUG
      { int i; for(i=0; i<u.bb.r.nField; i++) assert( memIsValid(&u.bb.r.aMem[i]) ); }
#endif
      u.bb.r.flags = UNPACKED_PREFIX_MATCH;
      u.bb.pIdxKey = &u.bb.r;
    }else{




      assert( pIn3->flags & MEM_Blob );
      assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
      u.bb.pIdxKey = sqlite3VdbeRecordUnpack(u.bb.pC->pKeyInfo, pIn3->n, pIn3->z,
                                        u.bb.aTempRec, sizeof(u.bb.aTempRec));
      if( u.bb.pIdxKey==0 ){
        goto no_mem;
      }
      u.bb.pIdxKey->flags |= UNPACKED_PREFIX_MATCH;
    }
    rc = sqlite3BtreeMovetoUnpacked(u.bb.pC->pCursor, u.bb.pIdxKey, 0, 0, &u.bb.res);
    if( pOp->p4.i==0 ){
      sqlite3VdbeDeleteUnpackedRecord(u.bb.pIdxKey);
    }
    if( rc!=SQLITE_OK ){
      break;
    }
    u.bb.alreadyExists = (u.bb.res==0);
    u.bb.pC->deferredMoveto = 0;
    u.bb.pC->cacheStatus = CACHE_STALE;
  }
  if( pOp->opcode==OP_Found ){
    if( u.bb.alreadyExists ) pc = pOp->p2 - 1;
  }else{
    if( !u.bb.alreadyExists ) pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: IsUnique P1 P2 P3 P4 *
**
** Cursor P1 is open on an index b-tree - that is to say, a btree which







|



>



|





|


|
|

|

|

|
|
|

|

|
|

>
>
>
>


|
<
<
<
<
|

|

|




|
|
|


|

|







67110
67111
67112
67113
67114
67115
67116
67117
67118
67119
67120
67121
67122
67123
67124
67125
67126
67127
67128
67129
67130
67131
67132
67133
67134
67135
67136
67137
67138
67139
67140
67141
67142
67143
67144
67145
67146
67147
67148
67149
67150
67151
67152
67153
67154
67155
67156




67157
67158
67159
67160
67161
67162
67163
67164
67165
67166
67167
67168
67169
67170
67171
67172
67173
67174
67175
67176
67177
67178
67179
67180
** falls through to the next instruction and P1 is left pointing at the
** matching entry.
**
** See also: Found, NotExists, IsUnique
*/
case OP_NotFound:       /* jump, in3 */
case OP_Found: {        /* jump, in3 */
#if 0  /* local variables moved into u.bc */
  int alreadyExists;
  VdbeCursor *pC;
  int res;
  char *pFree;
  UnpackedRecord *pIdxKey;
  UnpackedRecord r;
  char aTempRec[ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*3 + 7];
#endif /* local variables moved into u.bc */

#ifdef SQLITE_TEST
  sqlite3_found_count++;
#endif

  u.bc.alreadyExists = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p4type==P4_INT32 );
  u.bc.pC = p->apCsr[pOp->p1];
  assert( u.bc.pC!=0 );
  pIn3 = &aMem[pOp->p3];
  if( ALWAYS(u.bc.pC->pCursor!=0) ){

    assert( u.bc.pC->isTable==0 );
    if( pOp->p4.i>0 ){
      u.bc.r.pKeyInfo = u.bc.pC->pKeyInfo;
      u.bc.r.nField = (u16)pOp->p4.i;
      u.bc.r.aMem = pIn3;
#ifdef SQLITE_DEBUG
      { int i; for(i=0; i<u.bc.r.nField; i++) assert( memIsValid(&u.bc.r.aMem[i]) ); }
#endif
      u.bc.r.flags = UNPACKED_PREFIX_MATCH;
      u.bc.pIdxKey = &u.bc.r;
    }else{
      u.bc.pIdxKey = sqlite3VdbeAllocUnpackedRecord(
          u.bc.pC->pKeyInfo, u.bc.aTempRec, sizeof(u.bc.aTempRec), &u.bc.pFree
      );
      if( u.bc.pIdxKey==0 ) goto no_mem;
      assert( pIn3->flags & MEM_Blob );
      assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
      sqlite3VdbeRecordUnpack(u.bc.pC->pKeyInfo, pIn3->n, pIn3->z, u.bc.pIdxKey);




      u.bc.pIdxKey->flags |= UNPACKED_PREFIX_MATCH;
    }
    rc = sqlite3BtreeMovetoUnpacked(u.bc.pC->pCursor, u.bc.pIdxKey, 0, 0, &u.bc.res);
    if( pOp->p4.i==0 ){
      sqlite3DbFree(db, u.bc.pFree);
    }
    if( rc!=SQLITE_OK ){
      break;
    }
    u.bc.alreadyExists = (u.bc.res==0);
    u.bc.pC->deferredMoveto = 0;
    u.bc.pC->cacheStatus = CACHE_STALE;
  }
  if( pOp->opcode==OP_Found ){
    if( u.bc.alreadyExists ) pc = pOp->p2 - 1;
  }else{
    if( !u.bc.alreadyExists ) pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: IsUnique P1 P2 P3 P4 *
**
** Cursor P1 is open on an index b-tree - that is to say, a btree which
67203
67204
67205
67206
67207
67208
67209
67210
67211
67212
67213
67214
67215
67216
67217
67218
67219
67220
67221
67222
67223
67224
67225
67226
67227
67228
67229
67230
67231
67232
67233
67234
67235
67236
67237
67238
67239
67240
67241
67242
67243
67244
67245
67246
67247
67248
67249
67250
67251
67252
67253
67254
67255
67256
67257
67258
67259
67260
67261
67262
67263
67264
67265
67266
67267
67268
67269
67270
67271
67272
67273
67274
67275
67276
67277
67278
67279
67280
67281
67282
67283
67284
67285
67286
67287
67288
67289
67290
67291
67292
67293
67294
67295
67296
67297
67298
67299
67300
67301
67302
67303
67304
67305
67306
67307
67308
67309
67310
67311
67312
67313
67314
67315
67316
67317
67318
67319
67320
67321
67322
67323
67324
67325
67326
67327
67328
67329
** to instruction P2. Otherwise, the rowid of the conflicting index
** entry is copied to register P3 and control falls through to the next
** instruction.
**
** See also: NotFound, NotExists, Found
*/
case OP_IsUnique: {        /* jump, in3 */
#if 0  /* local variables moved into u.bc */
  u16 ii;
  VdbeCursor *pCx;
  BtCursor *pCrsr;
  u16 nField;
  Mem *aMx;
  UnpackedRecord r;                  /* B-Tree index search key */
  i64 R;                             /* Rowid stored in register P3 */
#endif /* local variables moved into u.bc */

  pIn3 = &aMem[pOp->p3];
  u.bc.aMx = &aMem[pOp->p4.i];
  /* Assert that the values of parameters P1 and P4 are in range. */
  assert( pOp->p4type==P4_INT32 );
  assert( pOp->p4.i>0 && pOp->p4.i<=p->nMem );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );

  /* Find the index cursor. */
  u.bc.pCx = p->apCsr[pOp->p1];
  assert( u.bc.pCx->deferredMoveto==0 );
  u.bc.pCx->seekResult = 0;
  u.bc.pCx->cacheStatus = CACHE_STALE;
  u.bc.pCrsr = u.bc.pCx->pCursor;

  /* If any of the values are NULL, take the jump. */
  u.bc.nField = u.bc.pCx->pKeyInfo->nField;
  for(u.bc.ii=0; u.bc.ii<u.bc.nField; u.bc.ii++){
    if( u.bc.aMx[u.bc.ii].flags & MEM_Null ){
      pc = pOp->p2 - 1;
      u.bc.pCrsr = 0;
      break;
    }
  }
  assert( (u.bc.aMx[u.bc.nField].flags & MEM_Null)==0 );

  if( u.bc.pCrsr!=0 ){
    /* Populate the index search key. */
    u.bc.r.pKeyInfo = u.bc.pCx->pKeyInfo;
    u.bc.r.nField = u.bc.nField + 1;
    u.bc.r.flags = UNPACKED_PREFIX_SEARCH;
    u.bc.r.aMem = u.bc.aMx;
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.bc.r.nField; i++) assert( memIsValid(&u.bc.r.aMem[i]) ); }
#endif

    /* Extract the value of u.bc.R from register P3. */
    sqlite3VdbeMemIntegerify(pIn3);
    u.bc.R = pIn3->u.i;

    /* Search the B-Tree index. If no conflicting record is found, jump
    ** to P2. Otherwise, copy the rowid of the conflicting record to
    ** register P3 and fall through to the next instruction.  */
    rc = sqlite3BtreeMovetoUnpacked(u.bc.pCrsr, &u.bc.r, 0, 0, &u.bc.pCx->seekResult);
    if( (u.bc.r.flags & UNPACKED_PREFIX_SEARCH) || u.bc.r.rowid==u.bc.R ){
      pc = pOp->p2 - 1;
    }else{
      pIn3->u.i = u.bc.r.rowid;
    }
  }
  break;
}

/* Opcode: NotExists P1 P2 P3 * *
**
** Use the content of register P3 as an integer key.  If a record 
** with that key does not exist in table of P1, then jump to P2. 
** If the record does exist, then fall through.  The cursor is left 
** pointing to the record if it exists.
**
** The difference between this operation and NotFound is that this
** operation assumes the key is an integer and that P1 is a table whereas
** NotFound assumes key is a blob constructed from MakeRecord and
** P1 is an index.
**
** See also: Found, NotFound, IsUnique
*/
case OP_NotExists: {        /* jump, in3 */
#if 0  /* local variables moved into u.bd */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
  u64 iKey;
#endif /* local variables moved into u.bd */

  pIn3 = &aMem[pOp->p3];
  assert( pIn3->flags & MEM_Int );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bd.pC = p->apCsr[pOp->p1];
  assert( u.bd.pC!=0 );
  assert( u.bd.pC->isTable );
  assert( u.bd.pC->pseudoTableReg==0 );
  u.bd.pCrsr = u.bd.pC->pCursor;
  if( ALWAYS(u.bd.pCrsr!=0) ){
    u.bd.res = 0;
    u.bd.iKey = pIn3->u.i;
    rc = sqlite3BtreeMovetoUnpacked(u.bd.pCrsr, 0, u.bd.iKey, 0, &u.bd.res);
    u.bd.pC->lastRowid = pIn3->u.i;
    u.bd.pC->rowidIsValid = u.bd.res==0 ?1:0;
    u.bd.pC->nullRow = 0;
    u.bd.pC->cacheStatus = CACHE_STALE;
    u.bd.pC->deferredMoveto = 0;
    if( u.bd.res!=0 ){
      pc = pOp->p2 - 1;
      assert( u.bd.pC->rowidIsValid==0 );
    }
    u.bd.pC->seekResult = u.bd.res;
  }else{
    /* This happens when an attempt to open a read cursor on the
    ** sqlite_master table returns SQLITE_EMPTY.
    */
    pc = pOp->p2 - 1;
    assert( u.bd.pC->rowidIsValid==0 );
    u.bd.pC->seekResult = 0;
  }
  break;
}

/* Opcode: Sequence P1 P2 * * *
**
** Find the next available sequence number for cursor P1.







|







|


|






|
|
|
|
|


|
|
|

|



|

|

|
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|
|

|


|

|




|
|


|




















|




|




|
|
|
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|
|
|
|
|
|

|

|





|
|







67198
67199
67200
67201
67202
67203
67204
67205
67206
67207
67208
67209
67210
67211
67212
67213
67214
67215
67216
67217
67218
67219
67220
67221
67222
67223
67224
67225
67226
67227
67228
67229
67230
67231
67232
67233
67234
67235
67236
67237
67238
67239
67240
67241
67242
67243
67244
67245
67246
67247
67248
67249
67250
67251
67252
67253
67254
67255
67256
67257
67258
67259
67260
67261
67262
67263
67264
67265
67266
67267
67268
67269
67270
67271
67272
67273
67274
67275
67276
67277
67278
67279
67280
67281
67282
67283
67284
67285
67286
67287
67288
67289
67290
67291
67292
67293
67294
67295
67296
67297
67298
67299
67300
67301
67302
67303
67304
67305
67306
67307
67308
67309
67310
67311
67312
67313
67314
67315
67316
67317
67318
67319
67320
67321
67322
67323
67324
** to instruction P2. Otherwise, the rowid of the conflicting index
** entry is copied to register P3 and control falls through to the next
** instruction.
**
** See also: NotFound, NotExists, Found
*/
case OP_IsUnique: {        /* jump, in3 */
#if 0  /* local variables moved into u.bd */
  u16 ii;
  VdbeCursor *pCx;
  BtCursor *pCrsr;
  u16 nField;
  Mem *aMx;
  UnpackedRecord r;                  /* B-Tree index search key */
  i64 R;                             /* Rowid stored in register P3 */
#endif /* local variables moved into u.bd */

  pIn3 = &aMem[pOp->p3];
  u.bd.aMx = &aMem[pOp->p4.i];
  /* Assert that the values of parameters P1 and P4 are in range. */
  assert( pOp->p4type==P4_INT32 );
  assert( pOp->p4.i>0 && pOp->p4.i<=p->nMem );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );

  /* Find the index cursor. */
  u.bd.pCx = p->apCsr[pOp->p1];
  assert( u.bd.pCx->deferredMoveto==0 );
  u.bd.pCx->seekResult = 0;
  u.bd.pCx->cacheStatus = CACHE_STALE;
  u.bd.pCrsr = u.bd.pCx->pCursor;

  /* If any of the values are NULL, take the jump. */
  u.bd.nField = u.bd.pCx->pKeyInfo->nField;
  for(u.bd.ii=0; u.bd.ii<u.bd.nField; u.bd.ii++){
    if( u.bd.aMx[u.bd.ii].flags & MEM_Null ){
      pc = pOp->p2 - 1;
      u.bd.pCrsr = 0;
      break;
    }
  }
  assert( (u.bd.aMx[u.bd.nField].flags & MEM_Null)==0 );

  if( u.bd.pCrsr!=0 ){
    /* Populate the index search key. */
    u.bd.r.pKeyInfo = u.bd.pCx->pKeyInfo;
    u.bd.r.nField = u.bd.nField + 1;
    u.bd.r.flags = UNPACKED_PREFIX_SEARCH;
    u.bd.r.aMem = u.bd.aMx;
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.bd.r.nField; i++) assert( memIsValid(&u.bd.r.aMem[i]) ); }
#endif

    /* Extract the value of u.bd.R from register P3. */
    sqlite3VdbeMemIntegerify(pIn3);
    u.bd.R = pIn3->u.i;

    /* Search the B-Tree index. If no conflicting record is found, jump
    ** to P2. Otherwise, copy the rowid of the conflicting record to
    ** register P3 and fall through to the next instruction.  */
    rc = sqlite3BtreeMovetoUnpacked(u.bd.pCrsr, &u.bd.r, 0, 0, &u.bd.pCx->seekResult);
    if( (u.bd.r.flags & UNPACKED_PREFIX_SEARCH) || u.bd.r.rowid==u.bd.R ){
      pc = pOp->p2 - 1;
    }else{
      pIn3->u.i = u.bd.r.rowid;
    }
  }
  break;
}

/* Opcode: NotExists P1 P2 P3 * *
**
** Use the content of register P3 as an integer key.  If a record 
** with that key does not exist in table of P1, then jump to P2. 
** If the record does exist, then fall through.  The cursor is left 
** pointing to the record if it exists.
**
** The difference between this operation and NotFound is that this
** operation assumes the key is an integer and that P1 is a table whereas
** NotFound assumes key is a blob constructed from MakeRecord and
** P1 is an index.
**
** See also: Found, NotFound, IsUnique
*/
case OP_NotExists: {        /* jump, in3 */
#if 0  /* local variables moved into u.be */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
  u64 iKey;
#endif /* local variables moved into u.be */

  pIn3 = &aMem[pOp->p3];
  assert( pIn3->flags & MEM_Int );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.be.pC = p->apCsr[pOp->p1];
  assert( u.be.pC!=0 );
  assert( u.be.pC->isTable );
  assert( u.be.pC->pseudoTableReg==0 );
  u.be.pCrsr = u.be.pC->pCursor;
  if( ALWAYS(u.be.pCrsr!=0) ){
    u.be.res = 0;
    u.be.iKey = pIn3->u.i;
    rc = sqlite3BtreeMovetoUnpacked(u.be.pCrsr, 0, u.be.iKey, 0, &u.be.res);
    u.be.pC->lastRowid = pIn3->u.i;
    u.be.pC->rowidIsValid = u.be.res==0 ?1:0;
    u.be.pC->nullRow = 0;
    u.be.pC->cacheStatus = CACHE_STALE;
    u.be.pC->deferredMoveto = 0;
    if( u.be.res!=0 ){
      pc = pOp->p2 - 1;
      assert( u.be.pC->rowidIsValid==0 );
    }
    u.be.pC->seekResult = u.be.res;
  }else{
    /* This happens when an attempt to open a read cursor on the
    ** sqlite_master table returns SQLITE_EMPTY.
    */
    pc = pOp->p2 - 1;
    assert( u.be.pC->rowidIsValid==0 );
    u.be.pC->seekResult = 0;
  }
  break;
}

/* Opcode: Sequence P1 P2 * * *
**
** Find the next available sequence number for cursor P1.
67350
67351
67352
67353
67354
67355
67356
67357
67358
67359
67360
67361
67362
67363
67364
67365
67366
67367
67368
67369
67370
67371
67372
67373
67374
67375
67376
67377
67378
67379
67380
67381
67382
67383
67384
67385
67386
67387
67388
67389
67390
67391
67392
67393
67394
67395
67396
67397
67398
67399
67400
67401
67402
67403
67404
67405
67406
67407
67408
67409
67410
67411
67412
67413
67414
67415
67416
67417
67418
67419
67420
67421
67422
67423
67424
67425
67426
67427
67428
67429
67430
67431
67432
67433
67434
67435
67436
67437
67438
67439
67440
67441
67442
67443
67444
67445
67446
67447
67448
67449
67450
67451
67452
67453
67454
67455
67456
67457
67458
67459
67460
67461
67462
67463
67464
67465
67466
67467
67468
67469
67470
67471
67472
67473
67474
67475
67476
67477
67478
67479
67480
67481
67482
67483
67484
67485
67486
67487
67488
67489
67490
67491
67492
67493
67494
67495
67496
** the largest previously generated record number. No new record numbers are
** allowed to be less than this value. When this value reaches its maximum, 
** an SQLITE_FULL error is generated. The P3 register is updated with the '
** generated record number. This P3 mechanism is used to help implement the
** AUTOINCREMENT feature.
*/
case OP_NewRowid: {           /* out2-prerelease */
#if 0  /* local variables moved into u.be */
  i64 v;                 /* The new rowid */
  VdbeCursor *pC;        /* Cursor of table to get the new rowid */
  int res;               /* Result of an sqlite3BtreeLast() */
  int cnt;               /* Counter to limit the number of searches */
  Mem *pMem;             /* Register holding largest rowid for AUTOINCREMENT */
  VdbeFrame *pFrame;     /* Root frame of VDBE */
#endif /* local variables moved into u.be */

  u.be.v = 0;
  u.be.res = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.be.pC = p->apCsr[pOp->p1];
  assert( u.be.pC!=0 );
  if( NEVER(u.be.pC->pCursor==0) ){
    /* The zero initialization above is all that is needed */
  }else{
    /* The next rowid or record number (different terms for the same
    ** thing) is obtained in a two-step algorithm.
    **
    ** First we attempt to find the largest existing rowid and add one
    ** to that.  But if the largest existing rowid is already the maximum
    ** positive integer, we have to fall through to the second
    ** probabilistic algorithm
    **
    ** The second algorithm is to select a rowid at random and see if
    ** it already exists in the table.  If it does not exist, we have
    ** succeeded.  If the random rowid does exist, we select a new one
    ** and try again, up to 100 times.
    */
    assert( u.be.pC->isTable );

#ifdef SQLITE_32BIT_ROWID
#   define MAX_ROWID 0x7fffffff
#else
    /* Some compilers complain about constants of the form 0x7fffffffffffffff.
    ** Others complain about 0x7ffffffffffffffffLL.  The following macro seems
    ** to provide the constant while making all compilers happy.
    */
#   define MAX_ROWID  (i64)( (((u64)0x7fffffff)<<32) | (u64)0xffffffff )
#endif

    if( !u.be.pC->useRandomRowid ){
      u.be.v = sqlite3BtreeGetCachedRowid(u.be.pC->pCursor);
      if( u.be.v==0 ){
        rc = sqlite3BtreeLast(u.be.pC->pCursor, &u.be.res);
        if( rc!=SQLITE_OK ){
          goto abort_due_to_error;
        }
        if( u.be.res ){
          u.be.v = 1;   /* IMP: R-61914-48074 */
        }else{
          assert( sqlite3BtreeCursorIsValid(u.be.pC->pCursor) );
          rc = sqlite3BtreeKeySize(u.be.pC->pCursor, &u.be.v);
          assert( rc==SQLITE_OK );   /* Cannot fail following BtreeLast() */
          if( u.be.v==MAX_ROWID ){
            u.be.pC->useRandomRowid = 1;
          }else{
            u.be.v++;   /* IMP: R-29538-34987 */
          }
        }
      }

#ifndef SQLITE_OMIT_AUTOINCREMENT
      if( pOp->p3 ){
        /* Assert that P3 is a valid memory cell. */
        assert( pOp->p3>0 );
        if( p->pFrame ){
          for(u.be.pFrame=p->pFrame; u.be.pFrame->pParent; u.be.pFrame=u.be.pFrame->pParent);
          /* Assert that P3 is a valid memory cell. */
          assert( pOp->p3<=u.be.pFrame->nMem );
          u.be.pMem = &u.be.pFrame->aMem[pOp->p3];
        }else{
          /* Assert that P3 is a valid memory cell. */
          assert( pOp->p3<=p->nMem );
          u.be.pMem = &aMem[pOp->p3];
          memAboutToChange(p, u.be.pMem);
        }
        assert( memIsValid(u.be.pMem) );

        REGISTER_TRACE(pOp->p3, u.be.pMem);
        sqlite3VdbeMemIntegerify(u.be.pMem);
        assert( (u.be.pMem->flags & MEM_Int)!=0 );  /* mem(P3) holds an integer */
        if( u.be.pMem->u.i==MAX_ROWID || u.be.pC->useRandomRowid ){
          rc = SQLITE_FULL;   /* IMP: R-12275-61338 */
          goto abort_due_to_error;
        }
        if( u.be.v<u.be.pMem->u.i+1 ){
          u.be.v = u.be.pMem->u.i + 1;
        }
        u.be.pMem->u.i = u.be.v;
      }
#endif

      sqlite3BtreeSetCachedRowid(u.be.pC->pCursor, u.be.v<MAX_ROWID ? u.be.v+1 : 0);
    }
    if( u.be.pC->useRandomRowid ){
      /* IMPLEMENTATION-OF: R-07677-41881 If the largest ROWID is equal to the
      ** largest possible integer (9223372036854775807) then the database
      ** engine starts picking positive candidate ROWIDs at random until
      ** it finds one that is not previously used. */
      assert( pOp->p3==0 );  /* We cannot be in random rowid mode if this is
                             ** an AUTOINCREMENT table. */
      /* on the first attempt, simply do one more than previous */
      u.be.v = lastRowid;
      u.be.v &= (MAX_ROWID>>1); /* ensure doesn't go negative */
      u.be.v++; /* ensure non-zero */
      u.be.cnt = 0;
      while(   ((rc = sqlite3BtreeMovetoUnpacked(u.be.pC->pCursor, 0, (u64)u.be.v,
                                                 0, &u.be.res))==SQLITE_OK)
            && (u.be.res==0)
            && (++u.be.cnt<100)){
        /* collision - try another random rowid */
        sqlite3_randomness(sizeof(u.be.v), &u.be.v);
        if( u.be.cnt<5 ){
          /* try "small" random rowids for the initial attempts */
          u.be.v &= 0xffffff;
        }else{
          u.be.v &= (MAX_ROWID>>1); /* ensure doesn't go negative */
        }
        u.be.v++; /* ensure non-zero */
      }
      if( rc==SQLITE_OK && u.be.res==0 ){
        rc = SQLITE_FULL;   /* IMP: R-38219-53002 */
        goto abort_due_to_error;
      }
      assert( u.be.v>0 );  /* EV: R-40812-03570 */
    }
    u.be.pC->rowidIsValid = 0;
    u.be.pC->deferredMoveto = 0;
    u.be.pC->cacheStatus = CACHE_STALE;
  }
  pOut->u.i = u.be.v;
  break;
}

/* Opcode: Insert P1 P2 P3 P4 P5
**
** Write an entry into the table of cursor P1.  A new entry is
** created if it doesn't already exist or the data for an existing







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67345
67346
67347
67348
67349
67350
67351
67352
67353
67354
67355
67356
67357
67358
67359
67360
67361
67362
67363
67364
67365
67366
67367
67368
67369
67370
67371
67372
67373
67374
67375
67376
67377
67378
67379
67380
67381
67382
67383
67384
67385
67386
67387
67388
67389
67390
67391
67392
67393
67394
67395
67396
67397
67398
67399
67400
67401
67402
67403
67404
67405
67406
67407
67408
67409
67410
67411
67412
67413
67414
67415
67416
67417
67418
67419
67420
67421
67422
67423
67424
67425
67426
67427
67428
67429
67430
67431
67432
67433
67434
67435
67436
67437
67438
67439
67440
67441
67442
67443
67444
67445
67446
67447
67448
67449
67450
67451
67452
67453
67454
67455
67456
67457
67458
67459
67460
67461
67462
67463
67464
67465
67466
67467
67468
67469
67470
67471
67472
67473
67474
67475
67476
67477
67478
67479
67480
67481
67482
67483
67484
67485
67486
67487
67488
67489
67490
67491
** the largest previously generated record number. No new record numbers are
** allowed to be less than this value. When this value reaches its maximum, 
** an SQLITE_FULL error is generated. The P3 register is updated with the '
** generated record number. This P3 mechanism is used to help implement the
** AUTOINCREMENT feature.
*/
case OP_NewRowid: {           /* out2-prerelease */
#if 0  /* local variables moved into u.bf */
  i64 v;                 /* The new rowid */
  VdbeCursor *pC;        /* Cursor of table to get the new rowid */
  int res;               /* Result of an sqlite3BtreeLast() */
  int cnt;               /* Counter to limit the number of searches */
  Mem *pMem;             /* Register holding largest rowid for AUTOINCREMENT */
  VdbeFrame *pFrame;     /* Root frame of VDBE */
#endif /* local variables moved into u.bf */

  u.bf.v = 0;
  u.bf.res = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bf.pC = p->apCsr[pOp->p1];
  assert( u.bf.pC!=0 );
  if( NEVER(u.bf.pC->pCursor==0) ){
    /* The zero initialization above is all that is needed */
  }else{
    /* The next rowid or record number (different terms for the same
    ** thing) is obtained in a two-step algorithm.
    **
    ** First we attempt to find the largest existing rowid and add one
    ** to that.  But if the largest existing rowid is already the maximum
    ** positive integer, we have to fall through to the second
    ** probabilistic algorithm
    **
    ** The second algorithm is to select a rowid at random and see if
    ** it already exists in the table.  If it does not exist, we have
    ** succeeded.  If the random rowid does exist, we select a new one
    ** and try again, up to 100 times.
    */
    assert( u.bf.pC->isTable );

#ifdef SQLITE_32BIT_ROWID
#   define MAX_ROWID 0x7fffffff
#else
    /* Some compilers complain about constants of the form 0x7fffffffffffffff.
    ** Others complain about 0x7ffffffffffffffffLL.  The following macro seems
    ** to provide the constant while making all compilers happy.
    */
#   define MAX_ROWID  (i64)( (((u64)0x7fffffff)<<32) | (u64)0xffffffff )
#endif

    if( !u.bf.pC->useRandomRowid ){
      u.bf.v = sqlite3BtreeGetCachedRowid(u.bf.pC->pCursor);
      if( u.bf.v==0 ){
        rc = sqlite3BtreeLast(u.bf.pC->pCursor, &u.bf.res);
        if( rc!=SQLITE_OK ){
          goto abort_due_to_error;
        }
        if( u.bf.res ){
          u.bf.v = 1;   /* IMP: R-61914-48074 */
        }else{
          assert( sqlite3BtreeCursorIsValid(u.bf.pC->pCursor) );
          rc = sqlite3BtreeKeySize(u.bf.pC->pCursor, &u.bf.v);
          assert( rc==SQLITE_OK );   /* Cannot fail following BtreeLast() */
          if( u.bf.v==MAX_ROWID ){
            u.bf.pC->useRandomRowid = 1;
          }else{
            u.bf.v++;   /* IMP: R-29538-34987 */
          }
        }
      }

#ifndef SQLITE_OMIT_AUTOINCREMENT
      if( pOp->p3 ){
        /* Assert that P3 is a valid memory cell. */
        assert( pOp->p3>0 );
        if( p->pFrame ){
          for(u.bf.pFrame=p->pFrame; u.bf.pFrame->pParent; u.bf.pFrame=u.bf.pFrame->pParent);
          /* Assert that P3 is a valid memory cell. */
          assert( pOp->p3<=u.bf.pFrame->nMem );
          u.bf.pMem = &u.bf.pFrame->aMem[pOp->p3];
        }else{
          /* Assert that P3 is a valid memory cell. */
          assert( pOp->p3<=p->nMem );
          u.bf.pMem = &aMem[pOp->p3];
          memAboutToChange(p, u.bf.pMem);
        }
        assert( memIsValid(u.bf.pMem) );

        REGISTER_TRACE(pOp->p3, u.bf.pMem);
        sqlite3VdbeMemIntegerify(u.bf.pMem);
        assert( (u.bf.pMem->flags & MEM_Int)!=0 );  /* mem(P3) holds an integer */
        if( u.bf.pMem->u.i==MAX_ROWID || u.bf.pC->useRandomRowid ){
          rc = SQLITE_FULL;   /* IMP: R-12275-61338 */
          goto abort_due_to_error;
        }
        if( u.bf.v<u.bf.pMem->u.i+1 ){
          u.bf.v = u.bf.pMem->u.i + 1;
        }
        u.bf.pMem->u.i = u.bf.v;
      }
#endif

      sqlite3BtreeSetCachedRowid(u.bf.pC->pCursor, u.bf.v<MAX_ROWID ? u.bf.v+1 : 0);
    }
    if( u.bf.pC->useRandomRowid ){
      /* IMPLEMENTATION-OF: R-07677-41881 If the largest ROWID is equal to the
      ** largest possible integer (9223372036854775807) then the database
      ** engine starts picking positive candidate ROWIDs at random until
      ** it finds one that is not previously used. */
      assert( pOp->p3==0 );  /* We cannot be in random rowid mode if this is
                             ** an AUTOINCREMENT table. */
      /* on the first attempt, simply do one more than previous */
      u.bf.v = lastRowid;
      u.bf.v &= (MAX_ROWID>>1); /* ensure doesn't go negative */
      u.bf.v++; /* ensure non-zero */
      u.bf.cnt = 0;
      while(   ((rc = sqlite3BtreeMovetoUnpacked(u.bf.pC->pCursor, 0, (u64)u.bf.v,
                                                 0, &u.bf.res))==SQLITE_OK)
            && (u.bf.res==0)
            && (++u.bf.cnt<100)){
        /* collision - try another random rowid */
        sqlite3_randomness(sizeof(u.bf.v), &u.bf.v);
        if( u.bf.cnt<5 ){
          /* try "small" random rowids for the initial attempts */
          u.bf.v &= 0xffffff;
        }else{
          u.bf.v &= (MAX_ROWID>>1); /* ensure doesn't go negative */
        }
        u.bf.v++; /* ensure non-zero */
      }
      if( rc==SQLITE_OK && u.bf.res==0 ){
        rc = SQLITE_FULL;   /* IMP: R-38219-53002 */
        goto abort_due_to_error;
      }
      assert( u.bf.v>0 );  /* EV: R-40812-03570 */
    }
    u.bf.pC->rowidIsValid = 0;
    u.bf.pC->deferredMoveto = 0;
    u.bf.pC->cacheStatus = CACHE_STALE;
  }
  pOut->u.i = u.bf.v;
  break;
}

/* Opcode: Insert P1 P2 P3 P4 P5
**
** Write an entry into the table of cursor P1.  A new entry is
** created if it doesn't already exist or the data for an existing
67532
67533
67534
67535
67536
67537
67538
67539
67540
67541
67542
67543
67544
67545
67546
67547
67548
67549
67550
67551
67552
67553
67554
67555
67556
67557
67558
67559
67560
67561
67562
67563
67564
67565
67566
67567
67568
67569
67570
67571
67572
67573
67574
67575
67576
67577
67578
67579
67580
67581
67582
67583
67584
67585
67586
67587
67588
67589
67590
67591
67592
67593
67594
67595
67596
67597
67598
67599
67600
67601
67602
67603
67604
67605
67606
67607
67608
67609
/* Opcode: InsertInt P1 P2 P3 P4 P5
**
** This works exactly like OP_Insert except that the key is the
** integer value P3, not the value of the integer stored in register P3.
*/
case OP_Insert: 
case OP_InsertInt: {
#if 0  /* local variables moved into u.bf */
  Mem *pData;       /* MEM cell holding data for the record to be inserted */
  Mem *pKey;        /* MEM cell holding key  for the record */
  i64 iKey;         /* The integer ROWID or key for the record to be inserted */
  VdbeCursor *pC;   /* Cursor to table into which insert is written */
  int nZero;        /* Number of zero-bytes to append */
  int seekResult;   /* Result of prior seek or 0 if no USESEEKRESULT flag */
  const char *zDb;  /* database name - used by the update hook */
  const char *zTbl; /* Table name - used by the opdate hook */
  int op;           /* Opcode for update hook: SQLITE_UPDATE or SQLITE_INSERT */
#endif /* local variables moved into u.bf */

  u.bf.pData = &aMem[pOp->p2];
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( memIsValid(u.bf.pData) );
  u.bf.pC = p->apCsr[pOp->p1];
  assert( u.bf.pC!=0 );
  assert( u.bf.pC->pCursor!=0 );
  assert( u.bf.pC->pseudoTableReg==0 );
  assert( u.bf.pC->isTable );
  REGISTER_TRACE(pOp->p2, u.bf.pData);

  if( pOp->opcode==OP_Insert ){
    u.bf.pKey = &aMem[pOp->p3];
    assert( u.bf.pKey->flags & MEM_Int );
    assert( memIsValid(u.bf.pKey) );
    REGISTER_TRACE(pOp->p3, u.bf.pKey);
    u.bf.iKey = u.bf.pKey->u.i;
  }else{
    assert( pOp->opcode==OP_InsertInt );
    u.bf.iKey = pOp->p3;
  }

  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
  if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = lastRowid = u.bf.iKey;
  if( u.bf.pData->flags & MEM_Null ){
    u.bf.pData->z = 0;
    u.bf.pData->n = 0;
  }else{
    assert( u.bf.pData->flags & (MEM_Blob|MEM_Str) );
  }
  u.bf.seekResult = ((pOp->p5 & OPFLAG_USESEEKRESULT) ? u.bf.pC->seekResult : 0);
  if( u.bf.pData->flags & MEM_Zero ){
    u.bf.nZero = u.bf.pData->u.nZero;
  }else{
    u.bf.nZero = 0;
  }
  sqlite3BtreeSetCachedRowid(u.bf.pC->pCursor, 0);
  rc = sqlite3BtreeInsert(u.bf.pC->pCursor, 0, u.bf.iKey,
                          u.bf.pData->z, u.bf.pData->n, u.bf.nZero,
                          pOp->p5 & OPFLAG_APPEND, u.bf.seekResult
  );
  u.bf.pC->rowidIsValid = 0;
  u.bf.pC->deferredMoveto = 0;
  u.bf.pC->cacheStatus = CACHE_STALE;

  /* Invoke the update-hook if required. */
  if( rc==SQLITE_OK && db->xUpdateCallback && pOp->p4.z ){
    u.bf.zDb = db->aDb[u.bf.pC->iDb].zName;
    u.bf.zTbl = pOp->p4.z;
    u.bf.op = ((pOp->p5 & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_INSERT);
    assert( u.bf.pC->isTable );
    db->xUpdateCallback(db->pUpdateArg, u.bf.op, u.bf.zDb, u.bf.zTbl, u.bf.iKey);
    assert( u.bf.pC->iDb>=0 );
  }
  break;
}

/* Opcode: Delete P1 P2 * P4 *
**
** Delete the record at which the P1 cursor is currently pointing.







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67527
67528
67529
67530
67531
67532
67533
67534
67535
67536
67537
67538
67539
67540
67541
67542
67543
67544
67545
67546
67547
67548
67549
67550
67551
67552
67553
67554
67555
67556
67557
67558
67559
67560
67561
67562
67563
67564
67565
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67567
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67569
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67583
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67585
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67588
67589
67590
67591
67592
67593
67594
67595
67596
67597
67598
67599
67600
67601
67602
67603
67604
/* Opcode: InsertInt P1 P2 P3 P4 P5
**
** This works exactly like OP_Insert except that the key is the
** integer value P3, not the value of the integer stored in register P3.
*/
case OP_Insert: 
case OP_InsertInt: {
#if 0  /* local variables moved into u.bg */
  Mem *pData;       /* MEM cell holding data for the record to be inserted */
  Mem *pKey;        /* MEM cell holding key  for the record */
  i64 iKey;         /* The integer ROWID or key for the record to be inserted */
  VdbeCursor *pC;   /* Cursor to table into which insert is written */
  int nZero;        /* Number of zero-bytes to append */
  int seekResult;   /* Result of prior seek or 0 if no USESEEKRESULT flag */
  const char *zDb;  /* database name - used by the update hook */
  const char *zTbl; /* Table name - used by the opdate hook */
  int op;           /* Opcode for update hook: SQLITE_UPDATE or SQLITE_INSERT */
#endif /* local variables moved into u.bg */

  u.bg.pData = &aMem[pOp->p2];
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( memIsValid(u.bg.pData) );
  u.bg.pC = p->apCsr[pOp->p1];
  assert( u.bg.pC!=0 );
  assert( u.bg.pC->pCursor!=0 );
  assert( u.bg.pC->pseudoTableReg==0 );
  assert( u.bg.pC->isTable );
  REGISTER_TRACE(pOp->p2, u.bg.pData);

  if( pOp->opcode==OP_Insert ){
    u.bg.pKey = &aMem[pOp->p3];
    assert( u.bg.pKey->flags & MEM_Int );
    assert( memIsValid(u.bg.pKey) );
    REGISTER_TRACE(pOp->p3, u.bg.pKey);
    u.bg.iKey = u.bg.pKey->u.i;
  }else{
    assert( pOp->opcode==OP_InsertInt );
    u.bg.iKey = pOp->p3;
  }

  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
  if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = lastRowid = u.bg.iKey;
  if( u.bg.pData->flags & MEM_Null ){
    u.bg.pData->z = 0;
    u.bg.pData->n = 0;
  }else{
    assert( u.bg.pData->flags & (MEM_Blob|MEM_Str) );
  }
  u.bg.seekResult = ((pOp->p5 & OPFLAG_USESEEKRESULT) ? u.bg.pC->seekResult : 0);
  if( u.bg.pData->flags & MEM_Zero ){
    u.bg.nZero = u.bg.pData->u.nZero;
  }else{
    u.bg.nZero = 0;
  }
  sqlite3BtreeSetCachedRowid(u.bg.pC->pCursor, 0);
  rc = sqlite3BtreeInsert(u.bg.pC->pCursor, 0, u.bg.iKey,
                          u.bg.pData->z, u.bg.pData->n, u.bg.nZero,
                          pOp->p5 & OPFLAG_APPEND, u.bg.seekResult
  );
  u.bg.pC->rowidIsValid = 0;
  u.bg.pC->deferredMoveto = 0;
  u.bg.pC->cacheStatus = CACHE_STALE;

  /* Invoke the update-hook if required. */
  if( rc==SQLITE_OK && db->xUpdateCallback && pOp->p4.z ){
    u.bg.zDb = db->aDb[u.bg.pC->iDb].zName;
    u.bg.zTbl = pOp->p4.z;
    u.bg.op = ((pOp->p5 & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_INSERT);
    assert( u.bg.pC->isTable );
    db->xUpdateCallback(db->pUpdateArg, u.bg.op, u.bg.zDb, u.bg.zTbl, u.bg.iKey);
    assert( u.bg.pC->iDb>=0 );
  }
  break;
}

/* Opcode: Delete P1 P2 * P4 *
**
** Delete the record at which the P1 cursor is currently pointing.
67621
67622
67623
67624
67625
67626
67627
67628
67629
67630
67631
67632
67633
67634
67635
67636
67637
67638
67639
67640
67641
67642
67643
67644
67645
67646
67647
67648
67649
67650
67651
67652
67653
67654
67655
67656
67657
67658
67659
67660
67661
67662
67663
67664
67665
67666
67667
67668
67669
67670
67671
67672
67673
67674
67675
67676
67677
67678
67679
67680
67681
67682
67683
67684











































67685
67686
67687
67688
67689
67690
67691
**
** If P4 is not NULL, then it is the name of the table that P1 is
** pointing to.  The update hook will be invoked, if it exists.
** If P4 is not NULL then the P1 cursor must have been positioned
** using OP_NotFound prior to invoking this opcode.
*/
case OP_Delete: {
#if 0  /* local variables moved into u.bg */
  i64 iKey;
  VdbeCursor *pC;
#endif /* local variables moved into u.bg */

  u.bg.iKey = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bg.pC = p->apCsr[pOp->p1];
  assert( u.bg.pC!=0 );
  assert( u.bg.pC->pCursor!=0 );  /* Only valid for real tables, no pseudotables */

  /* If the update-hook will be invoked, set u.bg.iKey to the rowid of the
  ** row being deleted.
  */
  if( db->xUpdateCallback && pOp->p4.z ){
    assert( u.bg.pC->isTable );
    assert( u.bg.pC->rowidIsValid );  /* lastRowid set by previous OP_NotFound */
    u.bg.iKey = u.bg.pC->lastRowid;
  }

  /* The OP_Delete opcode always follows an OP_NotExists or OP_Last or
  ** OP_Column on the same table without any intervening operations that
  ** might move or invalidate the cursor.  Hence cursor u.bg.pC is always pointing
  ** to the row to be deleted and the sqlite3VdbeCursorMoveto() operation
  ** below is always a no-op and cannot fail.  We will run it anyhow, though,
  ** to guard against future changes to the code generator.
  **/
  assert( u.bg.pC->deferredMoveto==0 );
  rc = sqlite3VdbeCursorMoveto(u.bg.pC);
  if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error;

  sqlite3BtreeSetCachedRowid(u.bg.pC->pCursor, 0);
  rc = sqlite3BtreeDelete(u.bg.pC->pCursor);
  u.bg.pC->cacheStatus = CACHE_STALE;

  /* Invoke the update-hook if required. */
  if( rc==SQLITE_OK && db->xUpdateCallback && pOp->p4.z ){
    const char *zDb = db->aDb[u.bg.pC->iDb].zName;
    const char *zTbl = pOp->p4.z;
    db->xUpdateCallback(db->pUpdateArg, SQLITE_DELETE, zDb, zTbl, u.bg.iKey);
    assert( u.bg.pC->iDb>=0 );
  }
  if( pOp->p2 & OPFLAG_NCHANGE ) p->nChange++;
  break;
}
/* Opcode: ResetCount * * * * *
**
** The value of the change counter is copied to the database handle
** change counter (returned by subsequent calls to sqlite3_changes()).
** Then the VMs internal change counter resets to 0.
** This is used by trigger programs.
*/
case OP_ResetCount: {
  sqlite3VdbeSetChanges(db, p->nChange);
  p->nChange = 0;
  break;
}












































/* Opcode: RowData P1 P2 * * *
**
** Write into register P2 the complete row data for cursor P1.
** There is no interpretation of the data.  
** It is just copied onto the P2 register exactly as 
** it is found in the database file.







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67616
67617
67618
67619
67620
67621
67622
67623
67624
67625
67626
67627
67628
67629
67630
67631
67632
67633
67634
67635
67636
67637
67638
67639
67640
67641
67642
67643
67644
67645
67646
67647
67648
67649
67650
67651
67652
67653
67654
67655
67656
67657
67658
67659
67660
67661
67662
67663
67664
67665
67666
67667
67668
67669
67670
67671
67672
67673
67674
67675
67676
67677
67678
67679
67680
67681
67682
67683
67684
67685
67686
67687
67688
67689
67690
67691
67692
67693
67694
67695
67696
67697
67698
67699
67700
67701
67702
67703
67704
67705
67706
67707
67708
67709
67710
67711
67712
67713
67714
67715
67716
67717
67718
67719
67720
67721
67722
67723
67724
67725
67726
67727
67728
67729
**
** If P4 is not NULL, then it is the name of the table that P1 is
** pointing to.  The update hook will be invoked, if it exists.
** If P4 is not NULL then the P1 cursor must have been positioned
** using OP_NotFound prior to invoking this opcode.
*/
case OP_Delete: {
#if 0  /* local variables moved into u.bh */
  i64 iKey;
  VdbeCursor *pC;
#endif /* local variables moved into u.bh */

  u.bh.iKey = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bh.pC = p->apCsr[pOp->p1];
  assert( u.bh.pC!=0 );
  assert( u.bh.pC->pCursor!=0 );  /* Only valid for real tables, no pseudotables */

  /* If the update-hook will be invoked, set u.bh.iKey to the rowid of the
  ** row being deleted.
  */
  if( db->xUpdateCallback && pOp->p4.z ){
    assert( u.bh.pC->isTable );
    assert( u.bh.pC->rowidIsValid );  /* lastRowid set by previous OP_NotFound */
    u.bh.iKey = u.bh.pC->lastRowid;
  }

  /* The OP_Delete opcode always follows an OP_NotExists or OP_Last or
  ** OP_Column on the same table without any intervening operations that
  ** might move or invalidate the cursor.  Hence cursor u.bh.pC is always pointing
  ** to the row to be deleted and the sqlite3VdbeCursorMoveto() operation
  ** below is always a no-op and cannot fail.  We will run it anyhow, though,
  ** to guard against future changes to the code generator.
  **/
  assert( u.bh.pC->deferredMoveto==0 );
  rc = sqlite3VdbeCursorMoveto(u.bh.pC);
  if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error;

  sqlite3BtreeSetCachedRowid(u.bh.pC->pCursor, 0);
  rc = sqlite3BtreeDelete(u.bh.pC->pCursor);
  u.bh.pC->cacheStatus = CACHE_STALE;

  /* Invoke the update-hook if required. */
  if( rc==SQLITE_OK && db->xUpdateCallback && pOp->p4.z ){
    const char *zDb = db->aDb[u.bh.pC->iDb].zName;
    const char *zTbl = pOp->p4.z;
    db->xUpdateCallback(db->pUpdateArg, SQLITE_DELETE, zDb, zTbl, u.bh.iKey);
    assert( u.bh.pC->iDb>=0 );
  }
  if( pOp->p2 & OPFLAG_NCHANGE ) p->nChange++;
  break;
}
/* Opcode: ResetCount * * * * *
**
** The value of the change counter is copied to the database handle
** change counter (returned by subsequent calls to sqlite3_changes()).
** Then the VMs internal change counter resets to 0.
** This is used by trigger programs.
*/
case OP_ResetCount: {
  sqlite3VdbeSetChanges(db, p->nChange);
  p->nChange = 0;
  break;
}

/* Opcode: SorterCompare P1 P2 P3
**
** P1 is a sorter cursor. This instruction compares the record blob in 
** register P3 with the entry that the sorter cursor currently points to.
** If, excluding the rowid fields at the end, the two records are a match,
** fall through to the next instruction. Otherwise, jump to instruction P2.
*/
case OP_SorterCompare: {
#if 0  /* local variables moved into u.bi */
  VdbeCursor *pC;
  int res;
#endif /* local variables moved into u.bi */

  u.bi.pC = p->apCsr[pOp->p1];
  assert( isSorter(u.bi.pC) );
  pIn3 = &aMem[pOp->p3];
  rc = sqlite3VdbeSorterCompare(u.bi.pC, pIn3, &u.bi.res);
  if( u.bi.res ){
    pc = pOp->p2-1;
  }
  break;
};

/* Opcode: SorterData P1 P2 * * *
**
** Write into register P2 the current sorter data for sorter cursor P1.
*/
case OP_SorterData: {
#if 0  /* local variables moved into u.bj */
  VdbeCursor *pC;
#endif /* local variables moved into u.bj */
#ifndef SQLITE_OMIT_MERGE_SORT
  pOut = &aMem[pOp->p2];
  u.bj.pC = p->apCsr[pOp->p1];
  assert( u.bj.pC->isSorter );
  rc = sqlite3VdbeSorterRowkey(u.bj.pC, pOut);
#else
  pOp->opcode = OP_RowKey;
  pc--;
#endif
  break;
}

/* Opcode: RowData P1 P2 * * *
**
** Write into register P2 the complete row data for cursor P1.
** There is no interpretation of the data.  
** It is just copied onto the P2 register exactly as 
** it is found in the database file.
67701
67702
67703
67704
67705
67706
67707
67708
67709
67710
67711
67712
67713
67714
67715
67716
67717
67718
67719
67720

67721
67722
67723
67724
67725
67726
67727
67728
67729
67730
67731
67732
67733
67734
67735
67736
67737
67738
67739
67740
67741
67742
67743
67744
67745
67746
67747
67748
67749
67750
67751
67752
67753
67754
67755
67756
67757
67758
67759
67760
67761
67762
67763
67764
67765
67766
67767
67768
67769
67770
67771
67772
67773
67774
67775
67776
67777
67778
67779
67780
67781
67782
67783
67784
67785
67786
67787
67788
67789
67790
67791
67792
67793
67794
67795
67796
67797
67798
67799
67800
67801
67802
67803
67804
67805
67806
67807
67808
67809
67810
67811
67812
67813
67814
67815
67816
67817
67818
67819
67820
67821
67822
67823
67824
67825
67826
67827
67828
67829
67830
67831
67832
67833
67834
67835
67836
67837
67838
67839
67840
67841
67842
67843
67844
67845
67846
67847
67848
67849
67850
67851
67852
67853
67854
67855
67856
67857
67858
67859
67860
67861
67862
67863
67864
67865
67866
67867
67868
67869
67870
67871
67872
67873
67874
67875
67876
67877
67878
67879
67880
67881
67882
67883
67884
67885
67886
67887
67888
67889
67890
67891
67892
67893
67894




67895
67896
67897
67898
67899
67900
67901
67902
67903
67904
67905
67906
67907
67908
67909
67910
67911
67912
67913
67914
67915
67916
67917
67918
67919
67920

67921
67922
67923
67924
67925
67926
67927
67928
67929
67930
67931
67932
67933
67934
67935
67936
67937
67938
67939
67940
67941
67942
** it is found in the database file.
**
** If the P1 cursor must be pointing to a valid row (not a NULL row)
** of a real table, not a pseudo-table.
*/
case OP_RowKey:
case OP_RowData: {
#if 0  /* local variables moved into u.bh */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  u32 n;
  i64 n64;
#endif /* local variables moved into u.bh */

  pOut = &aMem[pOp->p2];
  memAboutToChange(p, pOut);

  /* Note that RowKey and RowData are really exactly the same instruction */
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bh.pC = p->apCsr[pOp->p1];

  assert( u.bh.pC->isTable || pOp->opcode==OP_RowKey );
  assert( u.bh.pC->isIndex || pOp->opcode==OP_RowData );
  assert( u.bh.pC!=0 );
  assert( u.bh.pC->nullRow==0 );
  assert( u.bh.pC->pseudoTableReg==0 );

  if( isSorter(u.bh.pC) ){
    assert( pOp->opcode==OP_RowKey );
    rc = sqlite3VdbeSorterRowkey(u.bh.pC, pOut);
    break;
  }

  assert( u.bh.pC->pCursor!=0 );
  u.bh.pCrsr = u.bh.pC->pCursor;
  assert( sqlite3BtreeCursorIsValid(u.bh.pCrsr) );

  /* The OP_RowKey and OP_RowData opcodes always follow OP_NotExists or
  ** OP_Rewind/Op_Next with no intervening instructions that might invalidate
  ** the cursor.  Hence the following sqlite3VdbeCursorMoveto() call is always
  ** a no-op and can never fail.  But we leave it in place as a safety.
  */
  assert( u.bh.pC->deferredMoveto==0 );
  rc = sqlite3VdbeCursorMoveto(u.bh.pC);
  if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error;

  if( u.bh.pC->isIndex ){
    assert( !u.bh.pC->isTable );
    rc = sqlite3BtreeKeySize(u.bh.pCrsr, &u.bh.n64);
    assert( rc==SQLITE_OK );    /* True because of CursorMoveto() call above */
    if( u.bh.n64>db->aLimit[SQLITE_LIMIT_LENGTH] ){
      goto too_big;
    }
    u.bh.n = (u32)u.bh.n64;
  }else{
    rc = sqlite3BtreeDataSize(u.bh.pCrsr, &u.bh.n);
    assert( rc==SQLITE_OK );    /* DataSize() cannot fail */
    if( u.bh.n>(u32)db->aLimit[SQLITE_LIMIT_LENGTH] ){
      goto too_big;
    }
  }
  if( sqlite3VdbeMemGrow(pOut, u.bh.n, 0) ){
    goto no_mem;
  }
  pOut->n = u.bh.n;
  MemSetTypeFlag(pOut, MEM_Blob);
  if( u.bh.pC->isIndex ){
    rc = sqlite3BtreeKey(u.bh.pCrsr, 0, u.bh.n, pOut->z);
  }else{
    rc = sqlite3BtreeData(u.bh.pCrsr, 0, u.bh.n, pOut->z);
  }
  pOut->enc = SQLITE_UTF8;  /* In case the blob is ever cast to text */
  UPDATE_MAX_BLOBSIZE(pOut);
  break;
}

/* Opcode: Rowid P1 P2 * * *
**
** Store in register P2 an integer which is the key of the table entry that
** P1 is currently point to.
**
** P1 can be either an ordinary table or a virtual table.  There used to
** be a separate OP_VRowid opcode for use with virtual tables, but this
** one opcode now works for both table types.
*/
case OP_Rowid: {                 /* out2-prerelease */
#if 0  /* local variables moved into u.bi */
  VdbeCursor *pC;
  i64 v;
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
#endif /* local variables moved into u.bi */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bi.pC = p->apCsr[pOp->p1];
  assert( u.bi.pC!=0 );
  assert( u.bi.pC->pseudoTableReg==0 );
  if( u.bi.pC->nullRow ){
    pOut->flags = MEM_Null;
    break;
  }else if( u.bi.pC->deferredMoveto ){
    u.bi.v = u.bi.pC->movetoTarget;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  }else if( u.bi.pC->pVtabCursor ){
    u.bi.pVtab = u.bi.pC->pVtabCursor->pVtab;
    u.bi.pModule = u.bi.pVtab->pModule;
    assert( u.bi.pModule->xRowid );
    rc = u.bi.pModule->xRowid(u.bi.pC->pVtabCursor, &u.bi.v);
    importVtabErrMsg(p, u.bi.pVtab);
#endif /* SQLITE_OMIT_VIRTUALTABLE */
  }else{
    assert( u.bi.pC->pCursor!=0 );
    rc = sqlite3VdbeCursorMoveto(u.bi.pC);
    if( rc ) goto abort_due_to_error;
    if( u.bi.pC->rowidIsValid ){
      u.bi.v = u.bi.pC->lastRowid;
    }else{
      rc = sqlite3BtreeKeySize(u.bi.pC->pCursor, &u.bi.v);
      assert( rc==SQLITE_OK );  /* Always so because of CursorMoveto() above */
    }
  }
  pOut->u.i = u.bi.v;
  break;
}

/* Opcode: NullRow P1 * * * *
**
** Move the cursor P1 to a null row.  Any OP_Column operations
** that occur while the cursor is on the null row will always
** write a NULL.
*/
case OP_NullRow: {
#if 0  /* local variables moved into u.bj */
  VdbeCursor *pC;
#endif /* local variables moved into u.bj */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bj.pC = p->apCsr[pOp->p1];
  assert( u.bj.pC!=0 );
  u.bj.pC->nullRow = 1;
  u.bj.pC->rowidIsValid = 0;
  assert( u.bj.pC->pCursor || u.bj.pC->pVtabCursor );
  if( u.bj.pC->pCursor ){
    sqlite3BtreeClearCursor(u.bj.pC->pCursor);
  }
  break;
}

/* Opcode: Last P1 P2 * * *
**
** The next use of the Rowid or Column or Next instruction for P1 
** will refer to the last entry in the database table or index.
** If the table or index is empty and P2>0, then jump immediately to P2.
** If P2 is 0 or if the table or index is not empty, fall through
** to the following instruction.
*/
case OP_Last: {        /* jump */
#if 0  /* local variables moved into u.bk */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
#endif /* local variables moved into u.bk */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bk.pC = p->apCsr[pOp->p1];
  assert( u.bk.pC!=0 );
  u.bk.pCrsr = u.bk.pC->pCursor;
  if( NEVER(u.bk.pCrsr==0) ){
    u.bk.res = 1;
  }else{
    rc = sqlite3BtreeLast(u.bk.pCrsr, &u.bk.res);
  }
  u.bk.pC->nullRow = (u8)u.bk.res;
  u.bk.pC->deferredMoveto = 0;
  u.bk.pC->rowidIsValid = 0;
  u.bk.pC->cacheStatus = CACHE_STALE;
  if( pOp->p2>0 && u.bk.res ){
    pc = pOp->p2 - 1;
  }
  break;
}


/* Opcode: Sort P1 P2 * * *
**
** This opcode does exactly the same thing as OP_Rewind except that
** it increments an undocumented global variable used for testing.
**
** Sorting is accomplished by writing records into a sorting index,
** then rewinding that index and playing it back from beginning to
** end.  We use the OP_Sort opcode instead of OP_Rewind to do the
** rewinding so that the global variable will be incremented and
** regression tests can determine whether or not the optimizer is
** correctly optimizing out sorts.
*/




case OP_Sort: {        /* jump */
#ifdef SQLITE_TEST
  sqlite3_sort_count++;
  sqlite3_search_count--;
#endif
  p->aCounter[SQLITE_STMTSTATUS_SORT-1]++;
  /* Fall through into OP_Rewind */
}
/* Opcode: Rewind P1 P2 * * *
**
** The next use of the Rowid or Column or Next instruction for P1 
** will refer to the first entry in the database table or index.
** If the table or index is empty and P2>0, then jump immediately to P2.
** If P2 is 0 or if the table or index is not empty, fall through
** to the following instruction.
*/
case OP_Rewind: {        /* jump */
#if 0  /* local variables moved into u.bl */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
#endif /* local variables moved into u.bl */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bl.pC = p->apCsr[pOp->p1];
  assert( u.bl.pC!=0 );

  u.bl.res = 1;
  if( isSorter(u.bl.pC) ){
    rc = sqlite3VdbeSorterRewind(db, u.bl.pC, &u.bl.res);
  }else{
    u.bl.pCrsr = u.bl.pC->pCursor;
    assert( u.bl.pCrsr );
    rc = sqlite3BtreeFirst(u.bl.pCrsr, &u.bl.res);
    u.bl.pC->atFirst = u.bl.res==0 ?1:0;
    u.bl.pC->deferredMoveto = 0;
    u.bl.pC->cacheStatus = CACHE_STALE;
    u.bl.pC->rowidIsValid = 0;
  }
  u.bl.pC->nullRow = (u8)u.bl.res;
  assert( pOp->p2>0 && pOp->p2<p->nOp );
  if( u.bl.res ){
    pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: Next P1 P2 * P4 P5
**







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67739
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67750
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67753
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67766
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67980
** it is found in the database file.
**
** If the P1 cursor must be pointing to a valid row (not a NULL row)
** of a real table, not a pseudo-table.
*/
case OP_RowKey:
case OP_RowData: {
#if 0  /* local variables moved into u.bk */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  u32 n;
  i64 n64;
#endif /* local variables moved into u.bk */

  pOut = &aMem[pOp->p2];
  memAboutToChange(p, pOut);

  /* Note that RowKey and RowData are really exactly the same instruction */
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bk.pC = p->apCsr[pOp->p1];
  assert( u.bk.pC->isSorter==0 );
  assert( u.bk.pC->isTable || pOp->opcode!=OP_RowData );
  assert( u.bk.pC->isIndex || pOp->opcode==OP_RowData );
  assert( u.bk.pC!=0 );
  assert( u.bk.pC->nullRow==0 );
  assert( u.bk.pC->pseudoTableReg==0 );
  assert( !u.bk.pC->isSorter );






  assert( u.bk.pC->pCursor!=0 );
  u.bk.pCrsr = u.bk.pC->pCursor;
  assert( sqlite3BtreeCursorIsValid(u.bk.pCrsr) );

  /* The OP_RowKey and OP_RowData opcodes always follow OP_NotExists or
  ** OP_Rewind/Op_Next with no intervening instructions that might invalidate
  ** the cursor.  Hence the following sqlite3VdbeCursorMoveto() call is always
  ** a no-op and can never fail.  But we leave it in place as a safety.
  */
  assert( u.bk.pC->deferredMoveto==0 );
  rc = sqlite3VdbeCursorMoveto(u.bk.pC);
  if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error;

  if( u.bk.pC->isIndex ){
    assert( !u.bk.pC->isTable );
    rc = sqlite3BtreeKeySize(u.bk.pCrsr, &u.bk.n64);
    assert( rc==SQLITE_OK );    /* True because of CursorMoveto() call above */
    if( u.bk.n64>db->aLimit[SQLITE_LIMIT_LENGTH] ){
      goto too_big;
    }
    u.bk.n = (u32)u.bk.n64;
  }else{
    rc = sqlite3BtreeDataSize(u.bk.pCrsr, &u.bk.n);
    assert( rc==SQLITE_OK );    /* DataSize() cannot fail */
    if( u.bk.n>(u32)db->aLimit[SQLITE_LIMIT_LENGTH] ){
      goto too_big;
    }
  }
  if( sqlite3VdbeMemGrow(pOut, u.bk.n, 0) ){
    goto no_mem;
  }
  pOut->n = u.bk.n;
  MemSetTypeFlag(pOut, MEM_Blob);
  if( u.bk.pC->isIndex ){
    rc = sqlite3BtreeKey(u.bk.pCrsr, 0, u.bk.n, pOut->z);
  }else{
    rc = sqlite3BtreeData(u.bk.pCrsr, 0, u.bk.n, pOut->z);
  }
  pOut->enc = SQLITE_UTF8;  /* In case the blob is ever cast to text */
  UPDATE_MAX_BLOBSIZE(pOut);
  break;
}

/* Opcode: Rowid P1 P2 * * *
**
** Store in register P2 an integer which is the key of the table entry that
** P1 is currently point to.
**
** P1 can be either an ordinary table or a virtual table.  There used to
** be a separate OP_VRowid opcode for use with virtual tables, but this
** one opcode now works for both table types.
*/
case OP_Rowid: {                 /* out2-prerelease */
#if 0  /* local variables moved into u.bl */
  VdbeCursor *pC;
  i64 v;
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
#endif /* local variables moved into u.bl */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bl.pC = p->apCsr[pOp->p1];
  assert( u.bl.pC!=0 );
  assert( u.bl.pC->pseudoTableReg==0 );
  if( u.bl.pC->nullRow ){
    pOut->flags = MEM_Null;
    break;
  }else if( u.bl.pC->deferredMoveto ){
    u.bl.v = u.bl.pC->movetoTarget;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  }else if( u.bl.pC->pVtabCursor ){
    u.bl.pVtab = u.bl.pC->pVtabCursor->pVtab;
    u.bl.pModule = u.bl.pVtab->pModule;
    assert( u.bl.pModule->xRowid );
    rc = u.bl.pModule->xRowid(u.bl.pC->pVtabCursor, &u.bl.v);
    importVtabErrMsg(p, u.bl.pVtab);
#endif /* SQLITE_OMIT_VIRTUALTABLE */
  }else{
    assert( u.bl.pC->pCursor!=0 );
    rc = sqlite3VdbeCursorMoveto(u.bl.pC);
    if( rc ) goto abort_due_to_error;
    if( u.bl.pC->rowidIsValid ){
      u.bl.v = u.bl.pC->lastRowid;
    }else{
      rc = sqlite3BtreeKeySize(u.bl.pC->pCursor, &u.bl.v);
      assert( rc==SQLITE_OK );  /* Always so because of CursorMoveto() above */
    }
  }
  pOut->u.i = u.bl.v;
  break;
}

/* Opcode: NullRow P1 * * * *
**
** Move the cursor P1 to a null row.  Any OP_Column operations
** that occur while the cursor is on the null row will always
** write a NULL.
*/
case OP_NullRow: {
#if 0  /* local variables moved into u.bm */
  VdbeCursor *pC;
#endif /* local variables moved into u.bm */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bm.pC = p->apCsr[pOp->p1];
  assert( u.bm.pC!=0 );
  u.bm.pC->nullRow = 1;
  u.bm.pC->rowidIsValid = 0;
  assert( u.bm.pC->pCursor || u.bm.pC->pVtabCursor );
  if( u.bm.pC->pCursor ){
    sqlite3BtreeClearCursor(u.bm.pC->pCursor);
  }
  break;
}

/* Opcode: Last P1 P2 * * *
**
** The next use of the Rowid or Column or Next instruction for P1 
** will refer to the last entry in the database table or index.
** If the table or index is empty and P2>0, then jump immediately to P2.
** If P2 is 0 or if the table or index is not empty, fall through
** to the following instruction.
*/
case OP_Last: {        /* jump */
#if 0  /* local variables moved into u.bn */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
#endif /* local variables moved into u.bn */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bn.pC = p->apCsr[pOp->p1];
  assert( u.bn.pC!=0 );
  u.bn.pCrsr = u.bn.pC->pCursor;
  if( NEVER(u.bn.pCrsr==0) ){
    u.bn.res = 1;
  }else{
    rc = sqlite3BtreeLast(u.bn.pCrsr, &u.bn.res);
  }
  u.bn.pC->nullRow = (u8)u.bn.res;
  u.bn.pC->deferredMoveto = 0;
  u.bn.pC->rowidIsValid = 0;
  u.bn.pC->cacheStatus = CACHE_STALE;
  if( pOp->p2>0 && u.bn.res ){
    pc = pOp->p2 - 1;
  }
  break;
}


/* Opcode: Sort P1 P2 * * *
**
** This opcode does exactly the same thing as OP_Rewind except that
** it increments an undocumented global variable used for testing.
**
** Sorting is accomplished by writing records into a sorting index,
** then rewinding that index and playing it back from beginning to
** end.  We use the OP_Sort opcode instead of OP_Rewind to do the
** rewinding so that the global variable will be incremented and
** regression tests can determine whether or not the optimizer is
** correctly optimizing out sorts.
*/
case OP_SorterSort:    /* jump */
#ifdef SQLITE_OMIT_MERGE_SORT
  pOp->opcode = OP_Sort;
#endif
case OP_Sort: {        /* jump */
#ifdef SQLITE_TEST
  sqlite3_sort_count++;
  sqlite3_search_count--;
#endif
  p->aCounter[SQLITE_STMTSTATUS_SORT-1]++;
  /* Fall through into OP_Rewind */
}
/* Opcode: Rewind P1 P2 * * *
**
** The next use of the Rowid or Column or Next instruction for P1 
** will refer to the first entry in the database table or index.
** If the table or index is empty and P2>0, then jump immediately to P2.
** If P2 is 0 or if the table or index is not empty, fall through
** to the following instruction.
*/
case OP_Rewind: {        /* jump */
#if 0  /* local variables moved into u.bo */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
#endif /* local variables moved into u.bo */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bo.pC = p->apCsr[pOp->p1];
  assert( u.bo.pC!=0 );
  assert( u.bo.pC->isSorter==(pOp->opcode==OP_SorterSort) );
  u.bo.res = 1;
  if( isSorter(u.bo.pC) ){
    rc = sqlite3VdbeSorterRewind(db, u.bo.pC, &u.bo.res);
  }else{
    u.bo.pCrsr = u.bo.pC->pCursor;
    assert( u.bo.pCrsr );
    rc = sqlite3BtreeFirst(u.bo.pCrsr, &u.bo.res);
    u.bo.pC->atFirst = u.bo.res==0 ?1:0;
    u.bo.pC->deferredMoveto = 0;
    u.bo.pC->cacheStatus = CACHE_STALE;
    u.bo.pC->rowidIsValid = 0;
  }
  u.bo.pC->nullRow = (u8)u.bo.res;
  assert( pOp->p2>0 && pOp->p2<p->nOp );
  if( u.bo.res ){
    pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: Next P1 P2 * P4 P5
**
67966
67967
67968
67969
67970
67971
67972




67973
67974
67975
67976
67977
67978
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67987
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68022




68023
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68033

68034
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68040



68041
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68048

68049
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68080
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68130
68131
**
** P4 is always of type P4_ADVANCE. The function pointer points to
** sqlite3BtreePrevious().
**
** If P5 is positive and the jump is taken, then event counter
** number P5-1 in the prepared statement is incremented.
*/




case OP_Prev:          /* jump */
case OP_Next: {        /* jump */
#if 0  /* local variables moved into u.bm */
  VdbeCursor *pC;
  int res;
#endif /* local variables moved into u.bm */

  CHECK_FOR_INTERRUPT;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p5<=ArraySize(p->aCounter) );
  u.bm.pC = p->apCsr[pOp->p1];
  if( u.bm.pC==0 ){
    break;  /* See ticket #2273 */
  }

  if( isSorter(u.bm.pC) ){
    assert( pOp->opcode==OP_Next );
    rc = sqlite3VdbeSorterNext(db, u.bm.pC, &u.bm.res);
  }else{
    u.bm.res = 1;
    assert( u.bm.pC->deferredMoveto==0 );
    assert( u.bm.pC->pCursor );
    assert( pOp->opcode!=OP_Next || pOp->p4.xAdvance==sqlite3BtreeNext );
    assert( pOp->opcode!=OP_Prev || pOp->p4.xAdvance==sqlite3BtreePrevious );
    rc = pOp->p4.xAdvance(u.bm.pC->pCursor, &u.bm.res);
  }
  u.bm.pC->nullRow = (u8)u.bm.res;
  u.bm.pC->cacheStatus = CACHE_STALE;
  if( u.bm.res==0 ){
    pc = pOp->p2 - 1;
    if( pOp->p5 ) p->aCounter[pOp->p5-1]++;
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
  }
  u.bm.pC->rowidIsValid = 0;
  break;
}

/* Opcode: IdxInsert P1 P2 P3 * P5
**
** Register P2 holds an SQL index key made using the
** MakeRecord instructions.  This opcode writes that key
** into the index P1.  Data for the entry is nil.
**
** P3 is a flag that provides a hint to the b-tree layer that this
** insert is likely to be an append.
**
** This instruction only works for indices.  The equivalent instruction
** for tables is OP_Insert.
*/




case OP_IdxInsert: {        /* in2 */
#if 0  /* local variables moved into u.bn */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int nKey;
  const char *zKey;
#endif /* local variables moved into u.bn */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bn.pC = p->apCsr[pOp->p1];
  assert( u.bn.pC!=0 );

  pIn2 = &aMem[pOp->p2];
  assert( pIn2->flags & MEM_Blob );
  u.bn.pCrsr = u.bn.pC->pCursor;
  if( ALWAYS(u.bn.pCrsr!=0) ){
    assert( u.bn.pC->isTable==0 );
    rc = ExpandBlob(pIn2);
    if( rc==SQLITE_OK ){



      u.bn.nKey = pIn2->n;
      u.bn.zKey = pIn2->z;
      rc = sqlite3VdbeSorterWrite(db, u.bn.pC, u.bn.nKey);
      if( rc==SQLITE_OK ){
        rc = sqlite3BtreeInsert(u.bn.pCrsr, u.bn.zKey, u.bn.nKey, "", 0, 0, pOp->p3,
            ((pOp->p5 & OPFLAG_USESEEKRESULT) ? u.bn.pC->seekResult : 0)
        );
        assert( u.bn.pC->deferredMoveto==0 );

      }
      u.bn.pC->cacheStatus = CACHE_STALE;
    }
  }
  break;
}

/* Opcode: IdxDelete P1 P2 P3 * *
**
** The content of P3 registers starting at register P2 form
** an unpacked index key. This opcode removes that entry from the 
** index opened by cursor P1.
*/
case OP_IdxDelete: {
#if 0  /* local variables moved into u.bo */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
  UnpackedRecord r;
#endif /* local variables moved into u.bo */

  assert( pOp->p3>0 );
  assert( pOp->p2>0 && pOp->p2+pOp->p3<=p->nMem+1 );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bo.pC = p->apCsr[pOp->p1];
  assert( u.bo.pC!=0 );
  u.bo.pCrsr = u.bo.pC->pCursor;
  if( ALWAYS(u.bo.pCrsr!=0) ){
    u.bo.r.pKeyInfo = u.bo.pC->pKeyInfo;
    u.bo.r.nField = (u16)pOp->p3;
    u.bo.r.flags = 0;
    u.bo.r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.bo.r.nField; i++) assert( memIsValid(&u.bo.r.aMem[i]) ); }
#endif
    rc = sqlite3BtreeMovetoUnpacked(u.bo.pCrsr, &u.bo.r, 0, 0, &u.bo.res);
    if( rc==SQLITE_OK && u.bo.res==0 ){
      rc = sqlite3BtreeDelete(u.bo.pCrsr);
    }
    assert( u.bo.pC->deferredMoveto==0 );
    u.bo.pC->cacheStatus = CACHE_STALE;
  }
  break;
}

/* Opcode: IdxRowid P1 P2 * * *
**
** Write into register P2 an integer which is the last entry in the record at
** the end of the index key pointed to by cursor P1.  This integer should be
** the rowid of the table entry to which this index entry points.
**
** See also: Rowid, MakeRecord.
*/
case OP_IdxRowid: {              /* out2-prerelease */
#if 0  /* local variables moved into u.bp */
  BtCursor *pCrsr;
  VdbeCursor *pC;
  i64 rowid;
#endif /* local variables moved into u.bp */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bp.pC = p->apCsr[pOp->p1];
  assert( u.bp.pC!=0 );
  u.bp.pCrsr = u.bp.pC->pCursor;
  pOut->flags = MEM_Null;
  if( ALWAYS(u.bp.pCrsr!=0) ){
    rc = sqlite3VdbeCursorMoveto(u.bp.pC);
    if( NEVER(rc) ) goto abort_due_to_error;
    assert( u.bp.pC->deferredMoveto==0 );
    assert( u.bp.pC->isTable==0 );
    if( !u.bp.pC->nullRow ){
      rc = sqlite3VdbeIdxRowid(db, u.bp.pCrsr, &u.bp.rowid);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      pOut->u.i = u.bp.rowid;
      pOut->flags = MEM_Int;
    }
  }
  break;
}

/* Opcode: IdxGE P1 P2 P3 P4 P5







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>

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|


|
|
>


|
|
|


>
>
>
|
|
<
<
|
|
|
|
>

<












|




|




|
|
|
|
|
|
|
|

|

|
|
|

|
|













|



|


|
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|

|
|

|
|
|
|



|







68004
68005
68006
68007
68008
68009
68010
68011
68012
68013
68014
68015
68016
68017
68018
68019
68020
68021
68022
68023
68024
68025
68026
68027
68028
68029
68030
68031
68032
68033
68034
68035
68036
68037
68038
68039
68040
68041
68042
68043
68044
68045
68046
68047
68048
68049
68050
68051
68052
68053
68054
68055
68056
68057
68058
68059
68060
68061
68062
68063
68064
68065
68066
68067
68068
68069
68070
68071
68072
68073
68074
68075
68076
68077
68078
68079
68080
68081
68082
68083
68084
68085
68086
68087
68088
68089
68090
68091
68092
68093


68094
68095
68096
68097
68098
68099

68100
68101
68102
68103
68104
68105
68106
68107
68108
68109
68110
68111
68112
68113
68114
68115
68116
68117
68118
68119
68120
68121
68122
68123
68124
68125
68126
68127
68128
68129
68130
68131
68132
68133
68134
68135
68136
68137
68138
68139
68140
68141
68142
68143
68144
68145
68146
68147
68148
68149
68150
68151
68152
68153
68154
68155
68156
68157
68158
68159
68160
68161
68162
68163
68164
68165
68166
68167
68168
68169
68170
68171
68172
68173
68174
68175
68176
68177
68178
68179
68180
**
** P4 is always of type P4_ADVANCE. The function pointer points to
** sqlite3BtreePrevious().
**
** If P5 is positive and the jump is taken, then event counter
** number P5-1 in the prepared statement is incremented.
*/
case OP_SorterNext:    /* jump */
#ifdef SQLITE_OMIT_MERGE_SORT
  pOp->opcode = OP_Next;
#endif
case OP_Prev:          /* jump */
case OP_Next: {        /* jump */
#if 0  /* local variables moved into u.bp */
  VdbeCursor *pC;
  int res;
#endif /* local variables moved into u.bp */

  CHECK_FOR_INTERRUPT;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p5<=ArraySize(p->aCounter) );
  u.bp.pC = p->apCsr[pOp->p1];
  if( u.bp.pC==0 ){
    break;  /* See ticket #2273 */
  }
  assert( u.bp.pC->isSorter==(pOp->opcode==OP_SorterNext) );
  if( isSorter(u.bp.pC) ){
    assert( pOp->opcode==OP_SorterNext );
    rc = sqlite3VdbeSorterNext(db, u.bp.pC, &u.bp.res);
  }else{
    u.bp.res = 1;
    assert( u.bp.pC->deferredMoveto==0 );
    assert( u.bp.pC->pCursor );
    assert( pOp->opcode!=OP_Next || pOp->p4.xAdvance==sqlite3BtreeNext );
    assert( pOp->opcode!=OP_Prev || pOp->p4.xAdvance==sqlite3BtreePrevious );
    rc = pOp->p4.xAdvance(u.bp.pC->pCursor, &u.bp.res);
  }
  u.bp.pC->nullRow = (u8)u.bp.res;
  u.bp.pC->cacheStatus = CACHE_STALE;
  if( u.bp.res==0 ){
    pc = pOp->p2 - 1;
    if( pOp->p5 ) p->aCounter[pOp->p5-1]++;
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
  }
  u.bp.pC->rowidIsValid = 0;
  break;
}

/* Opcode: IdxInsert P1 P2 P3 * P5
**
** Register P2 holds an SQL index key made using the
** MakeRecord instructions.  This opcode writes that key
** into the index P1.  Data for the entry is nil.
**
** P3 is a flag that provides a hint to the b-tree layer that this
** insert is likely to be an append.
**
** This instruction only works for indices.  The equivalent instruction
** for tables is OP_Insert.
*/
case OP_SorterInsert:       /* in2 */
#ifdef SQLITE_OMIT_MERGE_SORT
  pOp->opcode = OP_IdxInsert;
#endif
case OP_IdxInsert: {        /* in2 */
#if 0  /* local variables moved into u.bq */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int nKey;
  const char *zKey;
#endif /* local variables moved into u.bq */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bq.pC = p->apCsr[pOp->p1];
  assert( u.bq.pC!=0 );
  assert( u.bq.pC->isSorter==(pOp->opcode==OP_SorterInsert) );
  pIn2 = &aMem[pOp->p2];
  assert( pIn2->flags & MEM_Blob );
  u.bq.pCrsr = u.bq.pC->pCursor;
  if( ALWAYS(u.bq.pCrsr!=0) ){
    assert( u.bq.pC->isTable==0 );
    rc = ExpandBlob(pIn2);
    if( rc==SQLITE_OK ){
      if( isSorter(u.bq.pC) ){
        rc = sqlite3VdbeSorterWrite(db, u.bq.pC, pIn2);
      }else{
        u.bq.nKey = pIn2->n;
        u.bq.zKey = pIn2->z;


        rc = sqlite3BtreeInsert(u.bq.pCrsr, u.bq.zKey, u.bq.nKey, "", 0, 0, pOp->p3,
            ((pOp->p5 & OPFLAG_USESEEKRESULT) ? u.bq.pC->seekResult : 0)
            );
        assert( u.bq.pC->deferredMoveto==0 );
        u.bq.pC->cacheStatus = CACHE_STALE;
      }

    }
  }
  break;
}

/* Opcode: IdxDelete P1 P2 P3 * *
**
** The content of P3 registers starting at register P2 form
** an unpacked index key. This opcode removes that entry from the 
** index opened by cursor P1.
*/
case OP_IdxDelete: {
#if 0  /* local variables moved into u.br */
  VdbeCursor *pC;
  BtCursor *pCrsr;
  int res;
  UnpackedRecord r;
#endif /* local variables moved into u.br */

  assert( pOp->p3>0 );
  assert( pOp->p2>0 && pOp->p2+pOp->p3<=p->nMem+1 );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.br.pC = p->apCsr[pOp->p1];
  assert( u.br.pC!=0 );
  u.br.pCrsr = u.br.pC->pCursor;
  if( ALWAYS(u.br.pCrsr!=0) ){
    u.br.r.pKeyInfo = u.br.pC->pKeyInfo;
    u.br.r.nField = (u16)pOp->p3;
    u.br.r.flags = 0;
    u.br.r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.br.r.nField; i++) assert( memIsValid(&u.br.r.aMem[i]) ); }
#endif
    rc = sqlite3BtreeMovetoUnpacked(u.br.pCrsr, &u.br.r, 0, 0, &u.br.res);
    if( rc==SQLITE_OK && u.br.res==0 ){
      rc = sqlite3BtreeDelete(u.br.pCrsr);
    }
    assert( u.br.pC->deferredMoveto==0 );
    u.br.pC->cacheStatus = CACHE_STALE;
  }
  break;
}

/* Opcode: IdxRowid P1 P2 * * *
**
** Write into register P2 an integer which is the last entry in the record at
** the end of the index key pointed to by cursor P1.  This integer should be
** the rowid of the table entry to which this index entry points.
**
** See also: Rowid, MakeRecord.
*/
case OP_IdxRowid: {              /* out2-prerelease */
#if 0  /* local variables moved into u.bs */
  BtCursor *pCrsr;
  VdbeCursor *pC;
  i64 rowid;
#endif /* local variables moved into u.bs */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bs.pC = p->apCsr[pOp->p1];
  assert( u.bs.pC!=0 );
  u.bs.pCrsr = u.bs.pC->pCursor;
  pOut->flags = MEM_Null;
  if( ALWAYS(u.bs.pCrsr!=0) ){
    rc = sqlite3VdbeCursorMoveto(u.bs.pC);
    if( NEVER(rc) ) goto abort_due_to_error;
    assert( u.bs.pC->deferredMoveto==0 );
    assert( u.bs.pC->isTable==0 );
    if( !u.bs.pC->nullRow ){
      rc = sqlite3VdbeIdxRowid(db, u.bs.pCrsr, &u.bs.rowid);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      pOut->u.i = u.bs.rowid;
      pOut->flags = MEM_Int;
    }
  }
  break;
}

/* Opcode: IdxGE P1 P2 P3 P4 P5
68152
68153
68154
68155
68156
68157
68158
68159
68160
68161
68162
68163
68164
68165
68166
68167
68168
68169
68170
68171
68172
68173
68174
68175
68176
68177
68178
68179
68180
68181
68182
68183
68184
68185
68186
68187
68188
68189
68190
68191
68192
68193
68194
68195
68196
68197
68198
** Otherwise fall through to the next instruction.
**
** If P5 is non-zero then the key value is increased by an epsilon prior 
** to the comparison.  This makes the opcode work like IdxLE.
*/
case OP_IdxLT:          /* jump */
case OP_IdxGE: {        /* jump */
#if 0  /* local variables moved into u.bq */
  VdbeCursor *pC;
  int res;
  UnpackedRecord r;
#endif /* local variables moved into u.bq */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bq.pC = p->apCsr[pOp->p1];
  assert( u.bq.pC!=0 );
  assert( u.bq.pC->isOrdered );
  if( ALWAYS(u.bq.pC->pCursor!=0) ){
    assert( u.bq.pC->deferredMoveto==0 );
    assert( pOp->p5==0 || pOp->p5==1 );
    assert( pOp->p4type==P4_INT32 );
    u.bq.r.pKeyInfo = u.bq.pC->pKeyInfo;
    u.bq.r.nField = (u16)pOp->p4.i;
    if( pOp->p5 ){
      u.bq.r.flags = UNPACKED_INCRKEY | UNPACKED_IGNORE_ROWID;
    }else{
      u.bq.r.flags = UNPACKED_IGNORE_ROWID;
    }
    u.bq.r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.bq.r.nField; i++) assert( memIsValid(&u.bq.r.aMem[i]) ); }
#endif
    rc = sqlite3VdbeIdxKeyCompare(u.bq.pC, &u.bq.r, &u.bq.res);
    if( pOp->opcode==OP_IdxLT ){
      u.bq.res = -u.bq.res;
    }else{
      assert( pOp->opcode==OP_IdxGE );
      u.bq.res++;
    }
    if( u.bq.res>0 ){
      pc = pOp->p2 - 1 ;
    }
  }
  break;
}

/* Opcode: Destroy P1 P2 P3 * *







|



|


|
|
|
|
|


|
|

|

|

|

|

|

|


|

|







68201
68202
68203
68204
68205
68206
68207
68208
68209
68210
68211
68212
68213
68214
68215
68216
68217
68218
68219
68220
68221
68222
68223
68224
68225
68226
68227
68228
68229
68230
68231
68232
68233
68234
68235
68236
68237
68238
68239
68240
68241
68242
68243
68244
68245
68246
68247
** Otherwise fall through to the next instruction.
**
** If P5 is non-zero then the key value is increased by an epsilon prior 
** to the comparison.  This makes the opcode work like IdxLE.
*/
case OP_IdxLT:          /* jump */
case OP_IdxGE: {        /* jump */
#if 0  /* local variables moved into u.bt */
  VdbeCursor *pC;
  int res;
  UnpackedRecord r;
#endif /* local variables moved into u.bt */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  u.bt.pC = p->apCsr[pOp->p1];
  assert( u.bt.pC!=0 );
  assert( u.bt.pC->isOrdered );
  if( ALWAYS(u.bt.pC->pCursor!=0) ){
    assert( u.bt.pC->deferredMoveto==0 );
    assert( pOp->p5==0 || pOp->p5==1 );
    assert( pOp->p4type==P4_INT32 );
    u.bt.r.pKeyInfo = u.bt.pC->pKeyInfo;
    u.bt.r.nField = (u16)pOp->p4.i;
    if( pOp->p5 ){
      u.bt.r.flags = UNPACKED_INCRKEY | UNPACKED_IGNORE_ROWID;
    }else{
      u.bt.r.flags = UNPACKED_IGNORE_ROWID;
    }
    u.bt.r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<u.bt.r.nField; i++) assert( memIsValid(&u.bt.r.aMem[i]) ); }
#endif
    rc = sqlite3VdbeIdxKeyCompare(u.bt.pC, &u.bt.r, &u.bt.res);
    if( pOp->opcode==OP_IdxLT ){
      u.bt.res = -u.bt.res;
    }else{
      assert( pOp->opcode==OP_IdxGE );
      u.bt.res++;
    }
    if( u.bt.res>0 ){
      pc = pOp->p2 - 1 ;
    }
  }
  break;
}

/* Opcode: Destroy P1 P2 P3 * *
68212
68213
68214
68215
68216
68217
68218
68219
68220
68221
68222
68223
68224
68225
68226
68227
68228
68229
68230
68231
68232
68233
68234
68235
68236
68237
68238
68239
68240
68241
68242
68243
68244
68245
68246
68247
68248
68249
68250
68251
68252
68253
68254
68255
68256
68257
68258
** movement was required (because the table being dropped was already 
** the last one in the database) then a zero is stored in register P2.
** If AUTOVACUUM is disabled then a zero is stored in register P2.
**
** See also: Clear
*/
case OP_Destroy: {     /* out2-prerelease */
#if 0  /* local variables moved into u.br */
  int iMoved;
  int iCnt;
  Vdbe *pVdbe;
  int iDb;
#endif /* local variables moved into u.br */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  u.br.iCnt = 0;
  for(u.br.pVdbe=db->pVdbe; u.br.pVdbe; u.br.pVdbe = u.br.pVdbe->pNext){
    if( u.br.pVdbe->magic==VDBE_MAGIC_RUN && u.br.pVdbe->inVtabMethod<2 && u.br.pVdbe->pc>=0 ){
      u.br.iCnt++;
    }
  }
#else
  u.br.iCnt = db->activeVdbeCnt;
#endif
  pOut->flags = MEM_Null;
  if( u.br.iCnt>1 ){
    rc = SQLITE_LOCKED;
    p->errorAction = OE_Abort;
  }else{
    u.br.iDb = pOp->p3;
    assert( u.br.iCnt==1 );
    assert( (p->btreeMask & (((yDbMask)1)<<u.br.iDb))!=0 );
    rc = sqlite3BtreeDropTable(db->aDb[u.br.iDb].pBt, pOp->p1, &u.br.iMoved);
    pOut->flags = MEM_Int;
    pOut->u.i = u.br.iMoved;
#ifndef SQLITE_OMIT_AUTOVACUUM
    if( rc==SQLITE_OK && u.br.iMoved!=0 ){
      sqlite3RootPageMoved(db, u.br.iDb, u.br.iMoved, pOp->p1);
      /* All OP_Destroy operations occur on the same btree */
      assert( resetSchemaOnFault==0 || resetSchemaOnFault==u.br.iDb+1 );
      resetSchemaOnFault = u.br.iDb+1;
    }
#endif
  }
  break;
}

/* Opcode: Clear P1 P2 P3







|




|

|
|
|
|



|


|



|
|
|
|

|

|
|

|
|







68261
68262
68263
68264
68265
68266
68267
68268
68269
68270
68271
68272
68273
68274
68275
68276
68277
68278
68279
68280
68281
68282
68283
68284
68285
68286
68287
68288
68289
68290
68291
68292
68293
68294
68295
68296
68297
68298
68299
68300
68301
68302
68303
68304
68305
68306
68307
** movement was required (because the table being dropped was already 
** the last one in the database) then a zero is stored in register P2.
** If AUTOVACUUM is disabled then a zero is stored in register P2.
**
** See also: Clear
*/
case OP_Destroy: {     /* out2-prerelease */
#if 0  /* local variables moved into u.bu */
  int iMoved;
  int iCnt;
  Vdbe *pVdbe;
  int iDb;
#endif /* local variables moved into u.bu */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  u.bu.iCnt = 0;
  for(u.bu.pVdbe=db->pVdbe; u.bu.pVdbe; u.bu.pVdbe = u.bu.pVdbe->pNext){
    if( u.bu.pVdbe->magic==VDBE_MAGIC_RUN && u.bu.pVdbe->inVtabMethod<2 && u.bu.pVdbe->pc>=0 ){
      u.bu.iCnt++;
    }
  }
#else
  u.bu.iCnt = db->activeVdbeCnt;
#endif
  pOut->flags = MEM_Null;
  if( u.bu.iCnt>1 ){
    rc = SQLITE_LOCKED;
    p->errorAction = OE_Abort;
  }else{
    u.bu.iDb = pOp->p3;
    assert( u.bu.iCnt==1 );
    assert( (p->btreeMask & (((yDbMask)1)<<u.bu.iDb))!=0 );
    rc = sqlite3BtreeDropTable(db->aDb[u.bu.iDb].pBt, pOp->p1, &u.bu.iMoved);
    pOut->flags = MEM_Int;
    pOut->u.i = u.bu.iMoved;
#ifndef SQLITE_OMIT_AUTOVACUUM
    if( rc==SQLITE_OK && u.bu.iMoved!=0 ){
      sqlite3RootPageMoved(db, u.bu.iDb, u.bu.iMoved, pOp->p1);
      /* All OP_Destroy operations occur on the same btree */
      assert( resetSchemaOnFault==0 || resetSchemaOnFault==u.bu.iDb+1 );
      resetSchemaOnFault = u.bu.iDb+1;
    }
#endif
  }
  break;
}

/* Opcode: Clear P1 P2 P3
68270
68271
68272
68273
68274
68275
68276
68277
68278
68279
68280
68281
68282
68283
68284
68285
68286
68287
68288
68289
68290
68291
68292
68293
68294
68295
68296
68297
68298
** count is incremented by the number of rows in the table being cleared. 
** If P3 is greater than zero, then the value stored in register P3 is
** also incremented by the number of rows in the table being cleared.
**
** See also: Destroy
*/
case OP_Clear: {
#if 0  /* local variables moved into u.bs */
  int nChange;
#endif /* local variables moved into u.bs */

  u.bs.nChange = 0;
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p2))!=0 );
  rc = sqlite3BtreeClearTable(
      db->aDb[pOp->p2].pBt, pOp->p1, (pOp->p3 ? &u.bs.nChange : 0)
  );
  if( pOp->p3 ){
    p->nChange += u.bs.nChange;
    if( pOp->p3>0 ){
      assert( memIsValid(&aMem[pOp->p3]) );
      memAboutToChange(p, &aMem[pOp->p3]);
      aMem[pOp->p3].u.i += u.bs.nChange;
    }
  }
  break;
}

/* Opcode: CreateTable P1 P2 * * *
**







|

|

|


|


|



|







68319
68320
68321
68322
68323
68324
68325
68326
68327
68328
68329
68330
68331
68332
68333
68334
68335
68336
68337
68338
68339
68340
68341
68342
68343
68344
68345
68346
68347
** count is incremented by the number of rows in the table being cleared. 
** If P3 is greater than zero, then the value stored in register P3 is
** also incremented by the number of rows in the table being cleared.
**
** See also: Destroy
*/
case OP_Clear: {
#if 0  /* local variables moved into u.bv */
  int nChange;
#endif /* local variables moved into u.bv */

  u.bv.nChange = 0;
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p2))!=0 );
  rc = sqlite3BtreeClearTable(
      db->aDb[pOp->p2].pBt, pOp->p1, (pOp->p3 ? &u.bv.nChange : 0)
  );
  if( pOp->p3 ){
    p->nChange += u.bv.nChange;
    if( pOp->p3>0 ){
      assert( memIsValid(&aMem[pOp->p3]) );
      memAboutToChange(p, &aMem[pOp->p3]);
      aMem[pOp->p3].u.i += u.bv.nChange;
    }
  }
  break;
}

/* Opcode: CreateTable P1 P2 * * *
**
68314
68315
68316
68317
68318
68319
68320
68321
68322
68323
68324
68325
68326
68327
68328
68329
68330
68331
68332
68333
68334
68335
68336
68337
68338
68339
68340
68341
68342
68343
68344
68345
68346
68347
68348
68349
68350
68351
68352
68353
68354
68355
68356
68357
68358
68359
68360
68361
68362
68363
68364
68365
68366
68367
68368
68369
68370
68371
68372
68373
68374
68375
68376
68377
68378
68379
68380
68381
68382
68383
68384
68385
68386
68387
68388
68389
68390
68391
68392
68393
68394
68395
68396
** P1>1.  Write the root page number of the new table into
** register P2.
**
** See documentation on OP_CreateTable for additional information.
*/
case OP_CreateIndex:            /* out2-prerelease */
case OP_CreateTable: {          /* out2-prerelease */
#if 0  /* local variables moved into u.bt */
  int pgno;
  int flags;
  Db *pDb;
#endif /* local variables moved into u.bt */

  u.bt.pgno = 0;
  assert( pOp->p1>=0 && pOp->p1<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p1))!=0 );
  u.bt.pDb = &db->aDb[pOp->p1];
  assert( u.bt.pDb->pBt!=0 );
  if( pOp->opcode==OP_CreateTable ){
    /* u.bt.flags = BTREE_INTKEY; */
    u.bt.flags = BTREE_INTKEY;
  }else{
    u.bt.flags = BTREE_BLOBKEY;
  }
  rc = sqlite3BtreeCreateTable(u.bt.pDb->pBt, &u.bt.pgno, u.bt.flags);
  pOut->u.i = u.bt.pgno;
  break;
}

/* Opcode: ParseSchema P1 * * P4 *
**
** Read and parse all entries from the SQLITE_MASTER table of database P1
** that match the WHERE clause P4. 
**
** This opcode invokes the parser to create a new virtual machine,
** then runs the new virtual machine.  It is thus a re-entrant opcode.
*/
case OP_ParseSchema: {
#if 0  /* local variables moved into u.bu */
  int iDb;
  const char *zMaster;
  char *zSql;
  InitData initData;
#endif /* local variables moved into u.bu */

  /* Any prepared statement that invokes this opcode will hold mutexes
  ** on every btree.  This is a prerequisite for invoking
  ** sqlite3InitCallback().
  */
#ifdef SQLITE_DEBUG
  for(u.bu.iDb=0; u.bu.iDb<db->nDb; u.bu.iDb++){
    assert( u.bu.iDb==1 || sqlite3BtreeHoldsMutex(db->aDb[u.bu.iDb].pBt) );
  }
#endif

  u.bu.iDb = pOp->p1;
  assert( u.bu.iDb>=0 && u.bu.iDb<db->nDb );
  assert( DbHasProperty(db, u.bu.iDb, DB_SchemaLoaded) );
  /* Used to be a conditional */ {
    u.bu.zMaster = SCHEMA_TABLE(u.bu.iDb);
    u.bu.initData.db = db;
    u.bu.initData.iDb = pOp->p1;
    u.bu.initData.pzErrMsg = &p->zErrMsg;
    u.bu.zSql = sqlite3MPrintf(db,
       "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
       db->aDb[u.bu.iDb].zName, u.bu.zMaster, pOp->p4.z);
    if( u.bu.zSql==0 ){
      rc = SQLITE_NOMEM;
    }else{
      assert( db->init.busy==0 );
      db->init.busy = 1;
      u.bu.initData.rc = SQLITE_OK;
      assert( !db->mallocFailed );
      rc = sqlite3_exec(db, u.bu.zSql, sqlite3InitCallback, &u.bu.initData, 0);
      if( rc==SQLITE_OK ) rc = u.bu.initData.rc;
      sqlite3DbFree(db, u.bu.zSql);
      db->init.busy = 0;
    }
  }
  if( rc==SQLITE_NOMEM ){
    goto no_mem;
  }
  break;







|



|

|


|
|

|
|

|

|
|












|




|






|
|



|
|
|

|
|
|
|
|

|
|




|

|
|
|







68363
68364
68365
68366
68367
68368
68369
68370
68371
68372
68373
68374
68375
68376
68377
68378
68379
68380
68381
68382
68383
68384
68385
68386
68387
68388
68389
68390
68391
68392
68393
68394
68395
68396
68397
68398
68399
68400
68401
68402
68403
68404
68405
68406
68407
68408
68409
68410
68411
68412
68413
68414
68415
68416
68417
68418
68419
68420
68421
68422
68423
68424
68425
68426
68427
68428
68429
68430
68431
68432
68433
68434
68435
68436
68437
68438
68439
68440
68441
68442
68443
68444
68445
** P1>1.  Write the root page number of the new table into
** register P2.
**
** See documentation on OP_CreateTable for additional information.
*/
case OP_CreateIndex:            /* out2-prerelease */
case OP_CreateTable: {          /* out2-prerelease */
#if 0  /* local variables moved into u.bw */
  int pgno;
  int flags;
  Db *pDb;
#endif /* local variables moved into u.bw */

  u.bw.pgno = 0;
  assert( pOp->p1>=0 && pOp->p1<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p1))!=0 );
  u.bw.pDb = &db->aDb[pOp->p1];
  assert( u.bw.pDb->pBt!=0 );
  if( pOp->opcode==OP_CreateTable ){
    /* u.bw.flags = BTREE_INTKEY; */
    u.bw.flags = BTREE_INTKEY;
  }else{
    u.bw.flags = BTREE_BLOBKEY;
  }
  rc = sqlite3BtreeCreateTable(u.bw.pDb->pBt, &u.bw.pgno, u.bw.flags);
  pOut->u.i = u.bw.pgno;
  break;
}

/* Opcode: ParseSchema P1 * * P4 *
**
** Read and parse all entries from the SQLITE_MASTER table of database P1
** that match the WHERE clause P4. 
**
** This opcode invokes the parser to create a new virtual machine,
** then runs the new virtual machine.  It is thus a re-entrant opcode.
*/
case OP_ParseSchema: {
#if 0  /* local variables moved into u.bx */
  int iDb;
  const char *zMaster;
  char *zSql;
  InitData initData;
#endif /* local variables moved into u.bx */

  /* Any prepared statement that invokes this opcode will hold mutexes
  ** on every btree.  This is a prerequisite for invoking
  ** sqlite3InitCallback().
  */
#ifdef SQLITE_DEBUG
  for(u.bx.iDb=0; u.bx.iDb<db->nDb; u.bx.iDb++){
    assert( u.bx.iDb==1 || sqlite3BtreeHoldsMutex(db->aDb[u.bx.iDb].pBt) );
  }
#endif

  u.bx.iDb = pOp->p1;
  assert( u.bx.iDb>=0 && u.bx.iDb<db->nDb );
  assert( DbHasProperty(db, u.bx.iDb, DB_SchemaLoaded) );
  /* Used to be a conditional */ {
    u.bx.zMaster = SCHEMA_TABLE(u.bx.iDb);
    u.bx.initData.db = db;
    u.bx.initData.iDb = pOp->p1;
    u.bx.initData.pzErrMsg = &p->zErrMsg;
    u.bx.zSql = sqlite3MPrintf(db,
       "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
       db->aDb[u.bx.iDb].zName, u.bx.zMaster, pOp->p4.z);
    if( u.bx.zSql==0 ){
      rc = SQLITE_NOMEM;
    }else{
      assert( db->init.busy==0 );
      db->init.busy = 1;
      u.bx.initData.rc = SQLITE_OK;
      assert( !db->mallocFailed );
      rc = sqlite3_exec(db, u.bx.zSql, sqlite3InitCallback, &u.bx.initData, 0);
      if( rc==SQLITE_OK ) rc = u.bx.initData.rc;
      sqlite3DbFree(db, u.bx.zSql);
      db->init.busy = 0;
    }
  }
  if( rc==SQLITE_NOMEM ){
    goto no_mem;
  }
  break;
68465
68466
68467
68468
68469
68470
68471
68472
68473
68474
68475
68476
68477
68478
68479
68480
68481
68482
68483
68484
68485
68486
68487
68488
68489
68490
68491
68492
68493
68494
68495
68496
68497
68498
68499
68500
68501
68502
68503
68504
68505
68506
68507
68508
68509
68510
68511
68512
68513
**
** If P5 is not zero, the check is done on the auxiliary database
** file, not the main database file.
**
** This opcode is used to implement the integrity_check pragma.
*/
case OP_IntegrityCk: {
#if 0  /* local variables moved into u.bv */
  int nRoot;      /* Number of tables to check.  (Number of root pages.) */
  int *aRoot;     /* Array of rootpage numbers for tables to be checked */
  int j;          /* Loop counter */
  int nErr;       /* Number of errors reported */
  char *z;        /* Text of the error report */
  Mem *pnErr;     /* Register keeping track of errors remaining */
#endif /* local variables moved into u.bv */

  u.bv.nRoot = pOp->p2;
  assert( u.bv.nRoot>0 );
  u.bv.aRoot = sqlite3DbMallocRaw(db, sizeof(int)*(u.bv.nRoot+1) );
  if( u.bv.aRoot==0 ) goto no_mem;
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.bv.pnErr = &aMem[pOp->p3];
  assert( (u.bv.pnErr->flags & MEM_Int)!=0 );
  assert( (u.bv.pnErr->flags & (MEM_Str|MEM_Blob))==0 );
  pIn1 = &aMem[pOp->p1];
  for(u.bv.j=0; u.bv.j<u.bv.nRoot; u.bv.j++){
    u.bv.aRoot[u.bv.j] = (int)sqlite3VdbeIntValue(&pIn1[u.bv.j]);
  }
  u.bv.aRoot[u.bv.j] = 0;
  assert( pOp->p5<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p5))!=0 );
  u.bv.z = sqlite3BtreeIntegrityCheck(db->aDb[pOp->p5].pBt, u.bv.aRoot, u.bv.nRoot,
                                 (int)u.bv.pnErr->u.i, &u.bv.nErr);
  sqlite3DbFree(db, u.bv.aRoot);
  u.bv.pnErr->u.i -= u.bv.nErr;
  sqlite3VdbeMemSetNull(pIn1);
  if( u.bv.nErr==0 ){
    assert( u.bv.z==0 );
  }else if( u.bv.z==0 ){
    goto no_mem;
  }else{
    sqlite3VdbeMemSetStr(pIn1, u.bv.z, -1, SQLITE_UTF8, sqlite3_free);
  }
  UPDATE_MAX_BLOBSIZE(pIn1);
  sqlite3VdbeChangeEncoding(pIn1, encoding);
  break;
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */








|






|

|
|
|
|

|
|
|

|
|

|


|
|
|
|

|
|
|


|







68514
68515
68516
68517
68518
68519
68520
68521
68522
68523
68524
68525
68526
68527
68528
68529
68530
68531
68532
68533
68534
68535
68536
68537
68538
68539
68540
68541
68542
68543
68544
68545
68546
68547
68548
68549
68550
68551
68552
68553
68554
68555
68556
68557
68558
68559
68560
68561
68562
**
** If P5 is not zero, the check is done on the auxiliary database
** file, not the main database file.
**
** This opcode is used to implement the integrity_check pragma.
*/
case OP_IntegrityCk: {
#if 0  /* local variables moved into u.by */
  int nRoot;      /* Number of tables to check.  (Number of root pages.) */
  int *aRoot;     /* Array of rootpage numbers for tables to be checked */
  int j;          /* Loop counter */
  int nErr;       /* Number of errors reported */
  char *z;        /* Text of the error report */
  Mem *pnErr;     /* Register keeping track of errors remaining */
#endif /* local variables moved into u.by */

  u.by.nRoot = pOp->p2;
  assert( u.by.nRoot>0 );
  u.by.aRoot = sqlite3DbMallocRaw(db, sizeof(int)*(u.by.nRoot+1) );
  if( u.by.aRoot==0 ) goto no_mem;
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.by.pnErr = &aMem[pOp->p3];
  assert( (u.by.pnErr->flags & MEM_Int)!=0 );
  assert( (u.by.pnErr->flags & (MEM_Str|MEM_Blob))==0 );
  pIn1 = &aMem[pOp->p1];
  for(u.by.j=0; u.by.j<u.by.nRoot; u.by.j++){
    u.by.aRoot[u.by.j] = (int)sqlite3VdbeIntValue(&pIn1[u.by.j]);
  }
  u.by.aRoot[u.by.j] = 0;
  assert( pOp->p5<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p5))!=0 );
  u.by.z = sqlite3BtreeIntegrityCheck(db->aDb[pOp->p5].pBt, u.by.aRoot, u.by.nRoot,
                                 (int)u.by.pnErr->u.i, &u.by.nErr);
  sqlite3DbFree(db, u.by.aRoot);
  u.by.pnErr->u.i -= u.by.nErr;
  sqlite3VdbeMemSetNull(pIn1);
  if( u.by.nErr==0 ){
    assert( u.by.z==0 );
  }else if( u.by.z==0 ){
    goto no_mem;
  }else{
    sqlite3VdbeMemSetStr(pIn1, u.by.z, -1, SQLITE_UTF8, sqlite3_free);
  }
  UPDATE_MAX_BLOBSIZE(pIn1);
  sqlite3VdbeChangeEncoding(pIn1, encoding);
  break;
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */

68533
68534
68535
68536
68537
68538
68539
68540
68541
68542
68543
68544
68545
68546
68547
68548
68549
68550
68551
68552
68553
68554
68555
68556
68557
68558
68559
68560
/* Opcode: RowSetRead P1 P2 P3 * *
**
** Extract the smallest value from boolean index P1 and put that value into
** register P3.  Or, if boolean index P1 is initially empty, leave P3
** unchanged and jump to instruction P2.
*/
case OP_RowSetRead: {       /* jump, in1, out3 */
#if 0  /* local variables moved into u.bw */
  i64 val;
#endif /* local variables moved into u.bw */
  CHECK_FOR_INTERRUPT;
  pIn1 = &aMem[pOp->p1];
  if( (pIn1->flags & MEM_RowSet)==0
   || sqlite3RowSetNext(pIn1->u.pRowSet, &u.bw.val)==0
  ){
    /* The boolean index is empty */
    sqlite3VdbeMemSetNull(pIn1);
    pc = pOp->p2 - 1;
  }else{
    /* A value was pulled from the index */
    sqlite3VdbeMemSetInt64(&aMem[pOp->p3], u.bw.val);
  }
  break;
}

/* Opcode: RowSetTest P1 P2 P3 P4
**
** Register P3 is assumed to hold a 64-bit integer value. If register P1







|

|



|






|







68582
68583
68584
68585
68586
68587
68588
68589
68590
68591
68592
68593
68594
68595
68596
68597
68598
68599
68600
68601
68602
68603
68604
68605
68606
68607
68608
68609
/* Opcode: RowSetRead P1 P2 P3 * *
**
** Extract the smallest value from boolean index P1 and put that value into
** register P3.  Or, if boolean index P1 is initially empty, leave P3
** unchanged and jump to instruction P2.
*/
case OP_RowSetRead: {       /* jump, in1, out3 */
#if 0  /* local variables moved into u.bz */
  i64 val;
#endif /* local variables moved into u.bz */
  CHECK_FOR_INTERRUPT;
  pIn1 = &aMem[pOp->p1];
  if( (pIn1->flags & MEM_RowSet)==0
   || sqlite3RowSetNext(pIn1->u.pRowSet, &u.bz.val)==0
  ){
    /* The boolean index is empty */
    sqlite3VdbeMemSetNull(pIn1);
    pc = pOp->p2 - 1;
  }else{
    /* A value was pulled from the index */
    sqlite3VdbeMemSetInt64(&aMem[pOp->p3], u.bz.val);
  }
  break;
}

/* Opcode: RowSetTest P1 P2 P3 P4
**
** Register P3 is assumed to hold a 64-bit integer value. If register P1
68575
68576
68577
68578
68579
68580
68581
68582
68583
68584
68585
68586
68587
68588
68589
68590
68591
68592
68593
68594
68595
68596
68597
68598
68599
68600
68601
68602
68603
68604
68605
68606
68607
68608
68609
68610
68611
68612
68613
68614
68615
68616
68617
68618
** (b) when P4==-1 there is no need to insert the value, as it will
** never be tested for, and (c) when a value that is part of set X is
** inserted, there is no need to search to see if the same value was
** previously inserted as part of set X (only if it was previously
** inserted as part of some other set).
*/
case OP_RowSetTest: {                     /* jump, in1, in3 */
#if 0  /* local variables moved into u.bx */
  int iSet;
  int exists;
#endif /* local variables moved into u.bx */

  pIn1 = &aMem[pOp->p1];
  pIn3 = &aMem[pOp->p3];
  u.bx.iSet = pOp->p4.i;
  assert( pIn3->flags&MEM_Int );

  /* If there is anything other than a rowset object in memory cell P1,
  ** delete it now and initialize P1 with an empty rowset
  */
  if( (pIn1->flags & MEM_RowSet)==0 ){
    sqlite3VdbeMemSetRowSet(pIn1);
    if( (pIn1->flags & MEM_RowSet)==0 ) goto no_mem;
  }

  assert( pOp->p4type==P4_INT32 );
  assert( u.bx.iSet==-1 || u.bx.iSet>=0 );
  if( u.bx.iSet ){
    u.bx.exists = sqlite3RowSetTest(pIn1->u.pRowSet,
                               (u8)(u.bx.iSet>=0 ? u.bx.iSet & 0xf : 0xff),
                               pIn3->u.i);
    if( u.bx.exists ){
      pc = pOp->p2 - 1;
      break;
    }
  }
  if( u.bx.iSet>=0 ){
    sqlite3RowSetInsert(pIn1->u.pRowSet, pIn3->u.i);
  }
  break;
}


#ifndef SQLITE_OMIT_TRIGGER







|


|



|











|
|
|
|

|




|







68624
68625
68626
68627
68628
68629
68630
68631
68632
68633
68634
68635
68636
68637
68638
68639
68640
68641
68642
68643
68644
68645
68646
68647
68648
68649
68650
68651
68652
68653
68654
68655
68656
68657
68658
68659
68660
68661
68662
68663
68664
68665
68666
68667
** (b) when P4==-1 there is no need to insert the value, as it will
** never be tested for, and (c) when a value that is part of set X is
** inserted, there is no need to search to see if the same value was
** previously inserted as part of set X (only if it was previously
** inserted as part of some other set).
*/
case OP_RowSetTest: {                     /* jump, in1, in3 */
#if 0  /* local variables moved into u.ca */
  int iSet;
  int exists;
#endif /* local variables moved into u.ca */

  pIn1 = &aMem[pOp->p1];
  pIn3 = &aMem[pOp->p3];
  u.ca.iSet = pOp->p4.i;
  assert( pIn3->flags&MEM_Int );

  /* If there is anything other than a rowset object in memory cell P1,
  ** delete it now and initialize P1 with an empty rowset
  */
  if( (pIn1->flags & MEM_RowSet)==0 ){
    sqlite3VdbeMemSetRowSet(pIn1);
    if( (pIn1->flags & MEM_RowSet)==0 ) goto no_mem;
  }

  assert( pOp->p4type==P4_INT32 );
  assert( u.ca.iSet==-1 || u.ca.iSet>=0 );
  if( u.ca.iSet ){
    u.ca.exists = sqlite3RowSetTest(pIn1->u.pRowSet,
                               (u8)(u.ca.iSet>=0 ? u.ca.iSet & 0xf : 0xff),
                               pIn3->u.i);
    if( u.ca.exists ){
      pc = pOp->p2 - 1;
      break;
    }
  }
  if( u.ca.iSet>=0 ){
    sqlite3RowSetInsert(pIn1->u.pRowSet, pIn3->u.i);
  }
  break;
}


#ifndef SQLITE_OMIT_TRIGGER
68627
68628
68629
68630
68631
68632
68633
68634
68635
68636
68637
68638
68639
68640
68641
68642
68643
68644
68645
68646
68647
68648
68649
68650
68651
68652
68653
68654
68655
68656
68657
68658
68659
68660
68661
68662
68663
68664
68665
68666
68667
68668
68669
68670
68671
68672
68673
68674
68675
68676
68677
68678
68679
68680
68681
68682
68683
68684
68685
68686
68687
68688
68689
68690
68691
68692
68693
68694
68695
68696
68697
68698
68699
68700
68701
68702
68703
68704
68705
68706
68707
68708
68709
68710
68711
68712
68713
68714
68715
68716
68717
68718
68719
68720
68721
68722
68723
68724
68725
68726
68727
68728
68729
68730
68731
68732
68733
68734
68735
68736
68737
68738
68739
68740
68741
68742
68743
68744
68745
68746
68747
68748
68749
68750
68751
68752
68753
68754
68755
68756
68757
68758
68759
68760
68761
68762
** exception using the RAISE() function. Register P3 contains the address 
** of a memory cell in this (the parent) VM that is used to allocate the 
** memory required by the sub-vdbe at runtime.
**
** P4 is a pointer to the VM containing the trigger program.
*/
case OP_Program: {        /* jump */
#if 0  /* local variables moved into u.by */
  int nMem;               /* Number of memory registers for sub-program */
  int nByte;              /* Bytes of runtime space required for sub-program */
  Mem *pRt;               /* Register to allocate runtime space */
  Mem *pMem;              /* Used to iterate through memory cells */
  Mem *pEnd;              /* Last memory cell in new array */
  VdbeFrame *pFrame;      /* New vdbe frame to execute in */
  SubProgram *pProgram;   /* Sub-program to execute */
  void *t;                /* Token identifying trigger */
#endif /* local variables moved into u.by */

  u.by.pProgram = pOp->p4.pProgram;
  u.by.pRt = &aMem[pOp->p3];
  assert( memIsValid(u.by.pRt) );
  assert( u.by.pProgram->nOp>0 );

  /* If the p5 flag is clear, then recursive invocation of triggers is
  ** disabled for backwards compatibility (p5 is set if this sub-program
  ** is really a trigger, not a foreign key action, and the flag set
  ** and cleared by the "PRAGMA recursive_triggers" command is clear).
  **
  ** It is recursive invocation of triggers, at the SQL level, that is
  ** disabled. In some cases a single trigger may generate more than one
  ** SubProgram (if the trigger may be executed with more than one different
  ** ON CONFLICT algorithm). SubProgram structures associated with a
  ** single trigger all have the same value for the SubProgram.token
  ** variable.  */
  if( pOp->p5 ){
    u.by.t = u.by.pProgram->token;
    for(u.by.pFrame=p->pFrame; u.by.pFrame && u.by.pFrame->token!=u.by.t; u.by.pFrame=u.by.pFrame->pParent);
    if( u.by.pFrame ) break;
  }

  if( p->nFrame>=db->aLimit[SQLITE_LIMIT_TRIGGER_DEPTH] ){
    rc = SQLITE_ERROR;
    sqlite3SetString(&p->zErrMsg, db, "too many levels of trigger recursion");
    break;
  }

  /* Register u.by.pRt is used to store the memory required to save the state
  ** of the current program, and the memory required at runtime to execute
  ** the trigger program. If this trigger has been fired before, then u.by.pRt
  ** is already allocated. Otherwise, it must be initialized.  */
  if( (u.by.pRt->flags&MEM_Frame)==0 ){
    /* SubProgram.nMem is set to the number of memory cells used by the
    ** program stored in SubProgram.aOp. As well as these, one memory
    ** cell is required for each cursor used by the program. Set local
    ** variable u.by.nMem (and later, VdbeFrame.nChildMem) to this value.
    */
    u.by.nMem = u.by.pProgram->nMem + u.by.pProgram->nCsr;
    u.by.nByte = ROUND8(sizeof(VdbeFrame))
              + u.by.nMem * sizeof(Mem)
              + u.by.pProgram->nCsr * sizeof(VdbeCursor *);
    u.by.pFrame = sqlite3DbMallocZero(db, u.by.nByte);
    if( !u.by.pFrame ){
      goto no_mem;
    }
    sqlite3VdbeMemRelease(u.by.pRt);
    u.by.pRt->flags = MEM_Frame;
    u.by.pRt->u.pFrame = u.by.pFrame;

    u.by.pFrame->v = p;
    u.by.pFrame->nChildMem = u.by.nMem;
    u.by.pFrame->nChildCsr = u.by.pProgram->nCsr;
    u.by.pFrame->pc = pc;
    u.by.pFrame->aMem = p->aMem;
    u.by.pFrame->nMem = p->nMem;
    u.by.pFrame->apCsr = p->apCsr;
    u.by.pFrame->nCursor = p->nCursor;
    u.by.pFrame->aOp = p->aOp;
    u.by.pFrame->nOp = p->nOp;
    u.by.pFrame->token = u.by.pProgram->token;

    u.by.pEnd = &VdbeFrameMem(u.by.pFrame)[u.by.pFrame->nChildMem];
    for(u.by.pMem=VdbeFrameMem(u.by.pFrame); u.by.pMem!=u.by.pEnd; u.by.pMem++){
      u.by.pMem->flags = MEM_Null;
      u.by.pMem->db = db;
    }
  }else{
    u.by.pFrame = u.by.pRt->u.pFrame;
    assert( u.by.pProgram->nMem+u.by.pProgram->nCsr==u.by.pFrame->nChildMem );
    assert( u.by.pProgram->nCsr==u.by.pFrame->nChildCsr );
    assert( pc==u.by.pFrame->pc );
  }

  p->nFrame++;
  u.by.pFrame->pParent = p->pFrame;
  u.by.pFrame->lastRowid = lastRowid;
  u.by.pFrame->nChange = p->nChange;
  p->nChange = 0;
  p->pFrame = u.by.pFrame;
  p->aMem = aMem = &VdbeFrameMem(u.by.pFrame)[-1];
  p->nMem = u.by.pFrame->nChildMem;
  p->nCursor = (u16)u.by.pFrame->nChildCsr;
  p->apCsr = (VdbeCursor **)&aMem[p->nMem+1];
  p->aOp = aOp = u.by.pProgram->aOp;
  p->nOp = u.by.pProgram->nOp;
  pc = -1;

  break;
}

/* Opcode: Param P1 P2 * * *
**
** This opcode is only ever present in sub-programs called via the 
** OP_Program instruction. Copy a value currently stored in a memory 
** cell of the calling (parent) frame to cell P2 in the current frames 
** address space. This is used by trigger programs to access the new.* 
** and old.* values.
**
** The address of the cell in the parent frame is determined by adding
** the value of the P1 argument to the value of the P1 argument to the
** calling OP_Program instruction.
*/
case OP_Param: {           /* out2-prerelease */
#if 0  /* local variables moved into u.bz */
  VdbeFrame *pFrame;
  Mem *pIn;
#endif /* local variables moved into u.bz */
  u.bz.pFrame = p->pFrame;
  u.bz.pIn = &u.bz.pFrame->aMem[pOp->p1 + u.bz.pFrame->aOp[u.bz.pFrame->pc].p1];
  sqlite3VdbeMemShallowCopy(pOut, u.bz.pIn, MEM_Ephem);
  break;
}

#endif /* #ifndef SQLITE_OMIT_TRIGGER */

#ifndef SQLITE_OMIT_FOREIGN_KEY
/* Opcode: FkCounter P1 P2 * * *







|








|

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|








|

|

|



|

|
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|
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|
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|


|
|
|
|







68676
68677
68678
68679
68680
68681
68682
68683
68684
68685
68686
68687
68688
68689
68690
68691
68692
68693
68694
68695
68696
68697
68698
68699
68700
68701
68702
68703
68704
68705
68706
68707
68708
68709
68710
68711
68712
68713
68714
68715
68716
68717
68718
68719
68720
68721
68722
68723
68724
68725
68726
68727
68728
68729
68730
68731
68732
68733
68734
68735
68736
68737
68738
68739
68740
68741
68742
68743
68744
68745
68746
68747
68748
68749
68750
68751
68752
68753
68754
68755
68756
68757
68758
68759
68760
68761
68762
68763
68764
68765
68766
68767
68768
68769
68770
68771
68772
68773
68774
68775
68776
68777
68778
68779
68780
68781
68782
68783
68784
68785
68786
68787
68788
68789
68790
68791
68792
68793
68794
68795
68796
68797
68798
68799
68800
68801
68802
68803
68804
68805
68806
68807
68808
68809
68810
68811
** exception using the RAISE() function. Register P3 contains the address 
** of a memory cell in this (the parent) VM that is used to allocate the 
** memory required by the sub-vdbe at runtime.
**
** P4 is a pointer to the VM containing the trigger program.
*/
case OP_Program: {        /* jump */
#if 0  /* local variables moved into u.cb */
  int nMem;               /* Number of memory registers for sub-program */
  int nByte;              /* Bytes of runtime space required for sub-program */
  Mem *pRt;               /* Register to allocate runtime space */
  Mem *pMem;              /* Used to iterate through memory cells */
  Mem *pEnd;              /* Last memory cell in new array */
  VdbeFrame *pFrame;      /* New vdbe frame to execute in */
  SubProgram *pProgram;   /* Sub-program to execute */
  void *t;                /* Token identifying trigger */
#endif /* local variables moved into u.cb */

  u.cb.pProgram = pOp->p4.pProgram;
  u.cb.pRt = &aMem[pOp->p3];
  assert( memIsValid(u.cb.pRt) );
  assert( u.cb.pProgram->nOp>0 );

  /* If the p5 flag is clear, then recursive invocation of triggers is
  ** disabled for backwards compatibility (p5 is set if this sub-program
  ** is really a trigger, not a foreign key action, and the flag set
  ** and cleared by the "PRAGMA recursive_triggers" command is clear).
  **
  ** It is recursive invocation of triggers, at the SQL level, that is
  ** disabled. In some cases a single trigger may generate more than one
  ** SubProgram (if the trigger may be executed with more than one different
  ** ON CONFLICT algorithm). SubProgram structures associated with a
  ** single trigger all have the same value for the SubProgram.token
  ** variable.  */
  if( pOp->p5 ){
    u.cb.t = u.cb.pProgram->token;
    for(u.cb.pFrame=p->pFrame; u.cb.pFrame && u.cb.pFrame->token!=u.cb.t; u.cb.pFrame=u.cb.pFrame->pParent);
    if( u.cb.pFrame ) break;
  }

  if( p->nFrame>=db->aLimit[SQLITE_LIMIT_TRIGGER_DEPTH] ){
    rc = SQLITE_ERROR;
    sqlite3SetString(&p->zErrMsg, db, "too many levels of trigger recursion");
    break;
  }

  /* Register u.cb.pRt is used to store the memory required to save the state
  ** of the current program, and the memory required at runtime to execute
  ** the trigger program. If this trigger has been fired before, then u.cb.pRt
  ** is already allocated. Otherwise, it must be initialized.  */
  if( (u.cb.pRt->flags&MEM_Frame)==0 ){
    /* SubProgram.nMem is set to the number of memory cells used by the
    ** program stored in SubProgram.aOp. As well as these, one memory
    ** cell is required for each cursor used by the program. Set local
    ** variable u.cb.nMem (and later, VdbeFrame.nChildMem) to this value.
    */
    u.cb.nMem = u.cb.pProgram->nMem + u.cb.pProgram->nCsr;
    u.cb.nByte = ROUND8(sizeof(VdbeFrame))
              + u.cb.nMem * sizeof(Mem)
              + u.cb.pProgram->nCsr * sizeof(VdbeCursor *);
    u.cb.pFrame = sqlite3DbMallocZero(db, u.cb.nByte);
    if( !u.cb.pFrame ){
      goto no_mem;
    }
    sqlite3VdbeMemRelease(u.cb.pRt);
    u.cb.pRt->flags = MEM_Frame;
    u.cb.pRt->u.pFrame = u.cb.pFrame;

    u.cb.pFrame->v = p;
    u.cb.pFrame->nChildMem = u.cb.nMem;
    u.cb.pFrame->nChildCsr = u.cb.pProgram->nCsr;
    u.cb.pFrame->pc = pc;
    u.cb.pFrame->aMem = p->aMem;
    u.cb.pFrame->nMem = p->nMem;
    u.cb.pFrame->apCsr = p->apCsr;
    u.cb.pFrame->nCursor = p->nCursor;
    u.cb.pFrame->aOp = p->aOp;
    u.cb.pFrame->nOp = p->nOp;
    u.cb.pFrame->token = u.cb.pProgram->token;

    u.cb.pEnd = &VdbeFrameMem(u.cb.pFrame)[u.cb.pFrame->nChildMem];
    for(u.cb.pMem=VdbeFrameMem(u.cb.pFrame); u.cb.pMem!=u.cb.pEnd; u.cb.pMem++){
      u.cb.pMem->flags = MEM_Null;
      u.cb.pMem->db = db;
    }
  }else{
    u.cb.pFrame = u.cb.pRt->u.pFrame;
    assert( u.cb.pProgram->nMem+u.cb.pProgram->nCsr==u.cb.pFrame->nChildMem );
    assert( u.cb.pProgram->nCsr==u.cb.pFrame->nChildCsr );
    assert( pc==u.cb.pFrame->pc );
  }

  p->nFrame++;
  u.cb.pFrame->pParent = p->pFrame;
  u.cb.pFrame->lastRowid = lastRowid;
  u.cb.pFrame->nChange = p->nChange;
  p->nChange = 0;
  p->pFrame = u.cb.pFrame;
  p->aMem = aMem = &VdbeFrameMem(u.cb.pFrame)[-1];
  p->nMem = u.cb.pFrame->nChildMem;
  p->nCursor = (u16)u.cb.pFrame->nChildCsr;
  p->apCsr = (VdbeCursor **)&aMem[p->nMem+1];
  p->aOp = aOp = u.cb.pProgram->aOp;
  p->nOp = u.cb.pProgram->nOp;
  pc = -1;

  break;
}

/* Opcode: Param P1 P2 * * *
**
** This opcode is only ever present in sub-programs called via the 
** OP_Program instruction. Copy a value currently stored in a memory 
** cell of the calling (parent) frame to cell P2 in the current frames 
** address space. This is used by trigger programs to access the new.* 
** and old.* values.
**
** The address of the cell in the parent frame is determined by adding
** the value of the P1 argument to the value of the P1 argument to the
** calling OP_Program instruction.
*/
case OP_Param: {           /* out2-prerelease */
#if 0  /* local variables moved into u.cc */
  VdbeFrame *pFrame;
  Mem *pIn;
#endif /* local variables moved into u.cc */
  u.cc.pFrame = p->pFrame;
  u.cc.pIn = &u.cc.pFrame->aMem[pOp->p1 + u.cc.pFrame->aOp[u.cc.pFrame->pc].p1];
  sqlite3VdbeMemShallowCopy(pOut, u.cc.pIn, MEM_Ephem);
  break;
}

#endif /* #ifndef SQLITE_OMIT_TRIGGER */

#ifndef SQLITE_OMIT_FOREIGN_KEY
/* Opcode: FkCounter P1 P2 * * *
68804
68805
68806
68807
68808
68809
68810
68811
68812
68813
68814
68815
68816
68817
68818
68819
68820
68821
68822
68823
68824
68825
68826
68827
68828
68829
68830
68831
68832
68833
** within a sub-program). Set the value of register P1 to the maximum of 
** its current value and the value in register P2.
**
** This instruction throws an error if the memory cell is not initially
** an integer.
*/
case OP_MemMax: {        /* in2 */
#if 0  /* local variables moved into u.ca */
  Mem *pIn1;
  VdbeFrame *pFrame;
#endif /* local variables moved into u.ca */
  if( p->pFrame ){
    for(u.ca.pFrame=p->pFrame; u.ca.pFrame->pParent; u.ca.pFrame=u.ca.pFrame->pParent);
    u.ca.pIn1 = &u.ca.pFrame->aMem[pOp->p1];
  }else{
    u.ca.pIn1 = &aMem[pOp->p1];
  }
  assert( memIsValid(u.ca.pIn1) );
  sqlite3VdbeMemIntegerify(u.ca.pIn1);
  pIn2 = &aMem[pOp->p2];
  sqlite3VdbeMemIntegerify(pIn2);
  if( u.ca.pIn1->u.i<pIn2->u.i){
    u.ca.pIn1->u.i = pIn2->u.i;
  }
  break;
}
#endif /* SQLITE_OMIT_AUTOINCREMENT */

/* Opcode: IfPos P1 P2 * * *
**







|


|

|
|

|

|
|


|
|







68853
68854
68855
68856
68857
68858
68859
68860
68861
68862
68863
68864
68865
68866
68867
68868
68869
68870
68871
68872
68873
68874
68875
68876
68877
68878
68879
68880
68881
68882
** within a sub-program). Set the value of register P1 to the maximum of 
** its current value and the value in register P2.
**
** This instruction throws an error if the memory cell is not initially
** an integer.
*/
case OP_MemMax: {        /* in2 */
#if 0  /* local variables moved into u.cd */
  Mem *pIn1;
  VdbeFrame *pFrame;
#endif /* local variables moved into u.cd */
  if( p->pFrame ){
    for(u.cd.pFrame=p->pFrame; u.cd.pFrame->pParent; u.cd.pFrame=u.cd.pFrame->pParent);
    u.cd.pIn1 = &u.cd.pFrame->aMem[pOp->p1];
  }else{
    u.cd.pIn1 = &aMem[pOp->p1];
  }
  assert( memIsValid(u.cd.pIn1) );
  sqlite3VdbeMemIntegerify(u.cd.pIn1);
  pIn2 = &aMem[pOp->p2];
  sqlite3VdbeMemIntegerify(pIn2);
  if( u.cd.pIn1->u.i<pIn2->u.i){
    u.cd.pIn1->u.i = pIn2->u.i;
  }
  break;
}
#endif /* SQLITE_OMIT_AUTOINCREMENT */

/* Opcode: IfPos P1 P2 * * *
**
68886
68887
68888
68889
68890
68891
68892
68893
68894
68895
68896
68897
68898
68899
68900
68901
68902
68903
68904
68905
68906
68907
68908
68909
68910
68911
68912
68913
68914
68915
68916
68917
68918
68919
68920
68921
68922
68923
68924
68925
68926
68927
68928
68929
68930
68931
68932
68933
68934
68935
68936
68937
68938
68939
68940
68941
68942
68943
68944
68945
68946
68947
68948
68949
68950
68951
68952
68953
68954
68955
68956
68957
68958
68959
68960
68961
68962
68963
68964
68965
68966
68967
68968
68969
68970
68971
68972
68973
68974
68975
68976
68977
68978
68979
68980
68981
68982
68983
68984
68985
68986
68987
68988
68989
68990
68991
68992
68993
68994
68995
68996
68997
68998
68999
69000
69001
69002
69003
69004
69005
69006
69007
69008
69009
69010
69011
69012
69013
69014
69015
69016
69017
69018
69019
69020
69021
69022
69023
69024
69025
69026
69027
69028
69029
69030
69031
69032
69033
69034
69035
69036
69037
69038
69039
69040
69041
69042
69043
69044
69045
69046
69047
69048
69049
69050
69051
69052
69053
69054
69055
69056
69057
69058
69059
69060
69061
69062
69063
69064
69065
69066
69067
69068
69069
69070
69071
69072
69073
69074
69075
69076
69077
69078
69079
69080
69081
69082
69083
69084
69085
69086
69087
69088
69089
69090
69091
69092
69093
69094
69095
69096
69097
69098
69099
69100
69101
69102
69103
69104
69105
69106
69107
69108
69109
69110
69111
69112
69113
** structure that specifies the function.  Use register
** P3 as the accumulator.
**
** The P5 arguments are taken from register P2 and its
** successors.
*/
case OP_AggStep: {
#if 0  /* local variables moved into u.cb */
  int n;
  int i;
  Mem *pMem;
  Mem *pRec;
  sqlite3_context ctx;
  sqlite3_value **apVal;
#endif /* local variables moved into u.cb */

  u.cb.n = pOp->p5;
  assert( u.cb.n>=0 );
  u.cb.pRec = &aMem[pOp->p2];
  u.cb.apVal = p->apArg;
  assert( u.cb.apVal || u.cb.n==0 );
  for(u.cb.i=0; u.cb.i<u.cb.n; u.cb.i++, u.cb.pRec++){
    assert( memIsValid(u.cb.pRec) );
    u.cb.apVal[u.cb.i] = u.cb.pRec;
    memAboutToChange(p, u.cb.pRec);
    sqlite3VdbeMemStoreType(u.cb.pRec);
  }
  u.cb.ctx.pFunc = pOp->p4.pFunc;
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.cb.ctx.pMem = u.cb.pMem = &aMem[pOp->p3];
  u.cb.pMem->n++;
  u.cb.ctx.s.flags = MEM_Null;
  u.cb.ctx.s.z = 0;
  u.cb.ctx.s.zMalloc = 0;
  u.cb.ctx.s.xDel = 0;
  u.cb.ctx.s.db = db;
  u.cb.ctx.isError = 0;
  u.cb.ctx.pColl = 0;
  if( u.cb.ctx.pFunc->flags & SQLITE_FUNC_NEEDCOLL ){
    assert( pOp>p->aOp );
    assert( pOp[-1].p4type==P4_COLLSEQ );
    assert( pOp[-1].opcode==OP_CollSeq );
    u.cb.ctx.pColl = pOp[-1].p4.pColl;
  }
  (u.cb.ctx.pFunc->xStep)(&u.cb.ctx, u.cb.n, u.cb.apVal); /* IMP: R-24505-23230 */
  if( u.cb.ctx.isError ){
    sqlite3SetString(&p->zErrMsg, db, "%s", sqlite3_value_text(&u.cb.ctx.s));
    rc = u.cb.ctx.isError;
  }

  sqlite3VdbeMemRelease(&u.cb.ctx.s);

  break;
}

/* Opcode: AggFinal P1 P2 * P4 *
**
** Execute the finalizer function for an aggregate.  P1 is
** the memory location that is the accumulator for the aggregate.
**
** P2 is the number of arguments that the step function takes and
** P4 is a pointer to the FuncDef for this function.  The P2
** argument is not used by this opcode.  It is only there to disambiguate
** functions that can take varying numbers of arguments.  The
** P4 argument is only needed for the degenerate case where
** the step function was not previously called.
*/
case OP_AggFinal: {
#if 0  /* local variables moved into u.cc */
  Mem *pMem;
#endif /* local variables moved into u.cc */
  assert( pOp->p1>0 && pOp->p1<=p->nMem );
  u.cc.pMem = &aMem[pOp->p1];
  assert( (u.cc.pMem->flags & ~(MEM_Null|MEM_Agg))==0 );
  rc = sqlite3VdbeMemFinalize(u.cc.pMem, pOp->p4.pFunc);
  if( rc ){
    sqlite3SetString(&p->zErrMsg, db, "%s", sqlite3_value_text(u.cc.pMem));
  }
  sqlite3VdbeChangeEncoding(u.cc.pMem, encoding);
  UPDATE_MAX_BLOBSIZE(u.cc.pMem);
  if( sqlite3VdbeMemTooBig(u.cc.pMem) ){
    goto too_big;
  }
  break;
}

#ifndef SQLITE_OMIT_WAL
/* Opcode: Checkpoint P1 P2 P3 * *
**
** Checkpoint database P1. This is a no-op if P1 is not currently in
** WAL mode. Parameter P2 is one of SQLITE_CHECKPOINT_PASSIVE, FULL
** or RESTART.  Write 1 or 0 into mem[P3] if the checkpoint returns
** SQLITE_BUSY or not, respectively.  Write the number of pages in the
** WAL after the checkpoint into mem[P3+1] and the number of pages
** in the WAL that have been checkpointed after the checkpoint
** completes into mem[P3+2].  However on an error, mem[P3+1] and
** mem[P3+2] are initialized to -1.
*/
case OP_Checkpoint: {
#if 0  /* local variables moved into u.cd */
  int i;                          /* Loop counter */
  int aRes[3];                    /* Results */
  Mem *pMem;                      /* Write results here */
#endif /* local variables moved into u.cd */

  u.cd.aRes[0] = 0;
  u.cd.aRes[1] = u.cd.aRes[2] = -1;
  assert( pOp->p2==SQLITE_CHECKPOINT_PASSIVE
       || pOp->p2==SQLITE_CHECKPOINT_FULL
       || pOp->p2==SQLITE_CHECKPOINT_RESTART
  );
  rc = sqlite3Checkpoint(db, pOp->p1, pOp->p2, &u.cd.aRes[1], &u.cd.aRes[2]);
  if( rc==SQLITE_BUSY ){
    rc = SQLITE_OK;
    u.cd.aRes[0] = 1;
  }
  for(u.cd.i=0, u.cd.pMem = &aMem[pOp->p3]; u.cd.i<3; u.cd.i++, u.cd.pMem++){
    sqlite3VdbeMemSetInt64(u.cd.pMem, (i64)u.cd.aRes[u.cd.i]);
  }
  break;
};  
#endif

#ifndef SQLITE_OMIT_PRAGMA
/* Opcode: JournalMode P1 P2 P3 * P5
**
** Change the journal mode of database P1 to P3. P3 must be one of the
** PAGER_JOURNALMODE_XXX values. If changing between the various rollback
** modes (delete, truncate, persist, off and memory), this is a simple
** operation. No IO is required.
**
** If changing into or out of WAL mode the procedure is more complicated.
**
** Write a string containing the final journal-mode to register P2.
*/
case OP_JournalMode: {    /* out2-prerelease */
#if 0  /* local variables moved into u.ce */
  Btree *pBt;                     /* Btree to change journal mode of */
  Pager *pPager;                  /* Pager associated with pBt */
  int eNew;                       /* New journal mode */
  int eOld;                       /* The old journal mode */
  const char *zFilename;          /* Name of database file for pPager */
#endif /* local variables moved into u.ce */

  u.ce.eNew = pOp->p3;
  assert( u.ce.eNew==PAGER_JOURNALMODE_DELETE
       || u.ce.eNew==PAGER_JOURNALMODE_TRUNCATE
       || u.ce.eNew==PAGER_JOURNALMODE_PERSIST
       || u.ce.eNew==PAGER_JOURNALMODE_OFF
       || u.ce.eNew==PAGER_JOURNALMODE_MEMORY
       || u.ce.eNew==PAGER_JOURNALMODE_WAL
       || u.ce.eNew==PAGER_JOURNALMODE_QUERY
  );
  assert( pOp->p1>=0 && pOp->p1<db->nDb );

  u.ce.pBt = db->aDb[pOp->p1].pBt;
  u.ce.pPager = sqlite3BtreePager(u.ce.pBt);
  u.ce.eOld = sqlite3PagerGetJournalMode(u.ce.pPager);
  if( u.ce.eNew==PAGER_JOURNALMODE_QUERY ) u.ce.eNew = u.ce.eOld;
  if( !sqlite3PagerOkToChangeJournalMode(u.ce.pPager) ) u.ce.eNew = u.ce.eOld;

#ifndef SQLITE_OMIT_WAL
  u.ce.zFilename = sqlite3PagerFilename(u.ce.pPager);

  /* Do not allow a transition to journal_mode=WAL for a database
  ** in temporary storage or if the VFS does not support shared memory
  */
  if( u.ce.eNew==PAGER_JOURNALMODE_WAL
   && (u.ce.zFilename[0]==0                         /* Temp file */
       || !sqlite3PagerWalSupported(u.ce.pPager))   /* No shared-memory support */
  ){
    u.ce.eNew = u.ce.eOld;
  }

  if( (u.ce.eNew!=u.ce.eOld)
   && (u.ce.eOld==PAGER_JOURNALMODE_WAL || u.ce.eNew==PAGER_JOURNALMODE_WAL)
  ){
    if( !db->autoCommit || db->activeVdbeCnt>1 ){
      rc = SQLITE_ERROR;
      sqlite3SetString(&p->zErrMsg, db,
          "cannot change %s wal mode from within a transaction",
          (u.ce.eNew==PAGER_JOURNALMODE_WAL ? "into" : "out of")
      );
      break;
    }else{

      if( u.ce.eOld==PAGER_JOURNALMODE_WAL ){
        /* If leaving WAL mode, close the log file. If successful, the call
        ** to PagerCloseWal() checkpoints and deletes the write-ahead-log
        ** file. An EXCLUSIVE lock may still be held on the database file
        ** after a successful return.
        */
        rc = sqlite3PagerCloseWal(u.ce.pPager);
        if( rc==SQLITE_OK ){
          sqlite3PagerSetJournalMode(u.ce.pPager, u.ce.eNew);
        }
      }else if( u.ce.eOld==PAGER_JOURNALMODE_MEMORY ){
        /* Cannot transition directly from MEMORY to WAL.  Use mode OFF
        ** as an intermediate */
        sqlite3PagerSetJournalMode(u.ce.pPager, PAGER_JOURNALMODE_OFF);
      }

      /* Open a transaction on the database file. Regardless of the journal
      ** mode, this transaction always uses a rollback journal.
      */
      assert( sqlite3BtreeIsInTrans(u.ce.pBt)==0 );
      if( rc==SQLITE_OK ){
        rc = sqlite3BtreeSetVersion(u.ce.pBt, (u.ce.eNew==PAGER_JOURNALMODE_WAL ? 2 : 1));
      }
    }
  }
#endif /* ifndef SQLITE_OMIT_WAL */

  if( rc ){
    u.ce.eNew = u.ce.eOld;
  }
  u.ce.eNew = sqlite3PagerSetJournalMode(u.ce.pPager, u.ce.eNew);

  pOut = &aMem[pOp->p2];
  pOut->flags = MEM_Str|MEM_Static|MEM_Term;
  pOut->z = (char *)sqlite3JournalModename(u.ce.eNew);
  pOut->n = sqlite3Strlen30(pOut->z);
  pOut->enc = SQLITE_UTF8;
  sqlite3VdbeChangeEncoding(pOut, encoding);
  break;
};
#endif /* SQLITE_OMIT_PRAGMA */








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68935
68936
68937
68938
68939
68940
68941
68942
68943
68944
68945
68946
68947
68948
68949
68950
68951
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68954
68955
68956
68957
68958
68959
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68961
68962
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68964
68965
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68968
68969
68970
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68972
68973
68974
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68981
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68983
68984
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68989
68990
68991
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68995
68996
68997
68998
68999
69000
69001
69002
69003
69004
69005
69006
69007
69008
69009
69010
69011
69012
69013
69014
69015
69016
69017
69018
69019
69020
69021
69022
69023
69024
69025
69026
69027
69028
69029
69030
69031
69032
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69034
69035
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69055
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69058
69059
69060
69061
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69069
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69071
69072
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69075
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69077
69078
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69083
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69091
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69097
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69100
69101
69102
69103
69104
69105
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69116
69117
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69124
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69141
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69149
69150
69151
69152
69153
69154
69155
69156
69157
69158
69159
69160
69161
69162
** structure that specifies the function.  Use register
** P3 as the accumulator.
**
** The P5 arguments are taken from register P2 and its
** successors.
*/
case OP_AggStep: {
#if 0  /* local variables moved into u.ce */
  int n;
  int i;
  Mem *pMem;
  Mem *pRec;
  sqlite3_context ctx;
  sqlite3_value **apVal;
#endif /* local variables moved into u.ce */

  u.ce.n = pOp->p5;
  assert( u.ce.n>=0 );
  u.ce.pRec = &aMem[pOp->p2];
  u.ce.apVal = p->apArg;
  assert( u.ce.apVal || u.ce.n==0 );
  for(u.ce.i=0; u.ce.i<u.ce.n; u.ce.i++, u.ce.pRec++){
    assert( memIsValid(u.ce.pRec) );
    u.ce.apVal[u.ce.i] = u.ce.pRec;
    memAboutToChange(p, u.ce.pRec);
    sqlite3VdbeMemStoreType(u.ce.pRec);
  }
  u.ce.ctx.pFunc = pOp->p4.pFunc;
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.ce.ctx.pMem = u.ce.pMem = &aMem[pOp->p3];
  u.ce.pMem->n++;
  u.ce.ctx.s.flags = MEM_Null;
  u.ce.ctx.s.z = 0;
  u.ce.ctx.s.zMalloc = 0;
  u.ce.ctx.s.xDel = 0;
  u.ce.ctx.s.db = db;
  u.ce.ctx.isError = 0;
  u.ce.ctx.pColl = 0;
  if( u.ce.ctx.pFunc->flags & SQLITE_FUNC_NEEDCOLL ){
    assert( pOp>p->aOp );
    assert( pOp[-1].p4type==P4_COLLSEQ );
    assert( pOp[-1].opcode==OP_CollSeq );
    u.ce.ctx.pColl = pOp[-1].p4.pColl;
  }
  (u.ce.ctx.pFunc->xStep)(&u.ce.ctx, u.ce.n, u.ce.apVal); /* IMP: R-24505-23230 */
  if( u.ce.ctx.isError ){
    sqlite3SetString(&p->zErrMsg, db, "%s", sqlite3_value_text(&u.ce.ctx.s));
    rc = u.ce.ctx.isError;
  }

  sqlite3VdbeMemRelease(&u.ce.ctx.s);

  break;
}

/* Opcode: AggFinal P1 P2 * P4 *
**
** Execute the finalizer function for an aggregate.  P1 is
** the memory location that is the accumulator for the aggregate.
**
** P2 is the number of arguments that the step function takes and
** P4 is a pointer to the FuncDef for this function.  The P2
** argument is not used by this opcode.  It is only there to disambiguate
** functions that can take varying numbers of arguments.  The
** P4 argument is only needed for the degenerate case where
** the step function was not previously called.
*/
case OP_AggFinal: {
#if 0  /* local variables moved into u.cf */
  Mem *pMem;
#endif /* local variables moved into u.cf */
  assert( pOp->p1>0 && pOp->p1<=p->nMem );
  u.cf.pMem = &aMem[pOp->p1];
  assert( (u.cf.pMem->flags & ~(MEM_Null|MEM_Agg))==0 );
  rc = sqlite3VdbeMemFinalize(u.cf.pMem, pOp->p4.pFunc);
  if( rc ){
    sqlite3SetString(&p->zErrMsg, db, "%s", sqlite3_value_text(u.cf.pMem));
  }
  sqlite3VdbeChangeEncoding(u.cf.pMem, encoding);
  UPDATE_MAX_BLOBSIZE(u.cf.pMem);
  if( sqlite3VdbeMemTooBig(u.cf.pMem) ){
    goto too_big;
  }
  break;
}

#ifndef SQLITE_OMIT_WAL
/* Opcode: Checkpoint P1 P2 P3 * *
**
** Checkpoint database P1. This is a no-op if P1 is not currently in
** WAL mode. Parameter P2 is one of SQLITE_CHECKPOINT_PASSIVE, FULL
** or RESTART.  Write 1 or 0 into mem[P3] if the checkpoint returns
** SQLITE_BUSY or not, respectively.  Write the number of pages in the
** WAL after the checkpoint into mem[P3+1] and the number of pages
** in the WAL that have been checkpointed after the checkpoint
** completes into mem[P3+2].  However on an error, mem[P3+1] and
** mem[P3+2] are initialized to -1.
*/
case OP_Checkpoint: {
#if 0  /* local variables moved into u.cg */
  int i;                          /* Loop counter */
  int aRes[3];                    /* Results */
  Mem *pMem;                      /* Write results here */
#endif /* local variables moved into u.cg */

  u.cg.aRes[0] = 0;
  u.cg.aRes[1] = u.cg.aRes[2] = -1;
  assert( pOp->p2==SQLITE_CHECKPOINT_PASSIVE
       || pOp->p2==SQLITE_CHECKPOINT_FULL
       || pOp->p2==SQLITE_CHECKPOINT_RESTART
  );
  rc = sqlite3Checkpoint(db, pOp->p1, pOp->p2, &u.cg.aRes[1], &u.cg.aRes[2]);
  if( rc==SQLITE_BUSY ){
    rc = SQLITE_OK;
    u.cg.aRes[0] = 1;
  }
  for(u.cg.i=0, u.cg.pMem = &aMem[pOp->p3]; u.cg.i<3; u.cg.i++, u.cg.pMem++){
    sqlite3VdbeMemSetInt64(u.cg.pMem, (i64)u.cg.aRes[u.cg.i]);
  }
  break;
};  
#endif

#ifndef SQLITE_OMIT_PRAGMA
/* Opcode: JournalMode P1 P2 P3 * P5
**
** Change the journal mode of database P1 to P3. P3 must be one of the
** PAGER_JOURNALMODE_XXX values. If changing between the various rollback
** modes (delete, truncate, persist, off and memory), this is a simple
** operation. No IO is required.
**
** If changing into or out of WAL mode the procedure is more complicated.
**
** Write a string containing the final journal-mode to register P2.
*/
case OP_JournalMode: {    /* out2-prerelease */
#if 0  /* local variables moved into u.ch */
  Btree *pBt;                     /* Btree to change journal mode of */
  Pager *pPager;                  /* Pager associated with pBt */
  int eNew;                       /* New journal mode */
  int eOld;                       /* The old journal mode */
  const char *zFilename;          /* Name of database file for pPager */
#endif /* local variables moved into u.ch */

  u.ch.eNew = pOp->p3;
  assert( u.ch.eNew==PAGER_JOURNALMODE_DELETE
       || u.ch.eNew==PAGER_JOURNALMODE_TRUNCATE
       || u.ch.eNew==PAGER_JOURNALMODE_PERSIST
       || u.ch.eNew==PAGER_JOURNALMODE_OFF
       || u.ch.eNew==PAGER_JOURNALMODE_MEMORY
       || u.ch.eNew==PAGER_JOURNALMODE_WAL
       || u.ch.eNew==PAGER_JOURNALMODE_QUERY
  );
  assert( pOp->p1>=0 && pOp->p1<db->nDb );

  u.ch.pBt = db->aDb[pOp->p1].pBt;
  u.ch.pPager = sqlite3BtreePager(u.ch.pBt);
  u.ch.eOld = sqlite3PagerGetJournalMode(u.ch.pPager);
  if( u.ch.eNew==PAGER_JOURNALMODE_QUERY ) u.ch.eNew = u.ch.eOld;
  if( !sqlite3PagerOkToChangeJournalMode(u.ch.pPager) ) u.ch.eNew = u.ch.eOld;

#ifndef SQLITE_OMIT_WAL
  u.ch.zFilename = sqlite3PagerFilename(u.ch.pPager);

  /* Do not allow a transition to journal_mode=WAL for a database
  ** in temporary storage or if the VFS does not support shared memory
  */
  if( u.ch.eNew==PAGER_JOURNALMODE_WAL
   && (u.ch.zFilename[0]==0                         /* Temp file */
       || !sqlite3PagerWalSupported(u.ch.pPager))   /* No shared-memory support */
  ){
    u.ch.eNew = u.ch.eOld;
  }

  if( (u.ch.eNew!=u.ch.eOld)
   && (u.ch.eOld==PAGER_JOURNALMODE_WAL || u.ch.eNew==PAGER_JOURNALMODE_WAL)
  ){
    if( !db->autoCommit || db->activeVdbeCnt>1 ){
      rc = SQLITE_ERROR;
      sqlite3SetString(&p->zErrMsg, db,
          "cannot change %s wal mode from within a transaction",
          (u.ch.eNew==PAGER_JOURNALMODE_WAL ? "into" : "out of")
      );
      break;
    }else{

      if( u.ch.eOld==PAGER_JOURNALMODE_WAL ){
        /* If leaving WAL mode, close the log file. If successful, the call
        ** to PagerCloseWal() checkpoints and deletes the write-ahead-log
        ** file. An EXCLUSIVE lock may still be held on the database file
        ** after a successful return.
        */
        rc = sqlite3PagerCloseWal(u.ch.pPager);
        if( rc==SQLITE_OK ){
          sqlite3PagerSetJournalMode(u.ch.pPager, u.ch.eNew);
        }
      }else if( u.ch.eOld==PAGER_JOURNALMODE_MEMORY ){
        /* Cannot transition directly from MEMORY to WAL.  Use mode OFF
        ** as an intermediate */
        sqlite3PagerSetJournalMode(u.ch.pPager, PAGER_JOURNALMODE_OFF);
      }

      /* Open a transaction on the database file. Regardless of the journal
      ** mode, this transaction always uses a rollback journal.
      */
      assert( sqlite3BtreeIsInTrans(u.ch.pBt)==0 );
      if( rc==SQLITE_OK ){
        rc = sqlite3BtreeSetVersion(u.ch.pBt, (u.ch.eNew==PAGER_JOURNALMODE_WAL ? 2 : 1));
      }
    }
  }
#endif /* ifndef SQLITE_OMIT_WAL */

  if( rc ){
    u.ch.eNew = u.ch.eOld;
  }
  u.ch.eNew = sqlite3PagerSetJournalMode(u.ch.pPager, u.ch.eNew);

  pOut = &aMem[pOp->p2];
  pOut->flags = MEM_Str|MEM_Static|MEM_Term;
  pOut->z = (char *)sqlite3JournalModename(u.ch.eNew);
  pOut->n = sqlite3Strlen30(pOut->z);
  pOut->enc = SQLITE_UTF8;
  sqlite3VdbeChangeEncoding(pOut, encoding);
  break;
};
#endif /* SQLITE_OMIT_PRAGMA */

69128
69129
69130
69131
69132
69133
69134
69135
69136
69137
69138
69139
69140
69141
69142
69143
69144
69145
69146
69147
69148
69149
/* Opcode: IncrVacuum P1 P2 * * *
**
** Perform a single step of the incremental vacuum procedure on
** the P1 database. If the vacuum has finished, jump to instruction
** P2. Otherwise, fall through to the next instruction.
*/
case OP_IncrVacuum: {        /* jump */
#if 0  /* local variables moved into u.cf */
  Btree *pBt;
#endif /* local variables moved into u.cf */

  assert( pOp->p1>=0 && pOp->p1<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p1))!=0 );
  u.cf.pBt = db->aDb[pOp->p1].pBt;
  rc = sqlite3BtreeIncrVacuum(u.cf.pBt);
  if( rc==SQLITE_DONE ){
    pc = pOp->p2 - 1;
    rc = SQLITE_OK;
  }
  break;
}
#endif







|

|



|
|







69177
69178
69179
69180
69181
69182
69183
69184
69185
69186
69187
69188
69189
69190
69191
69192
69193
69194
69195
69196
69197
69198
/* Opcode: IncrVacuum P1 P2 * * *
**
** Perform a single step of the incremental vacuum procedure on
** the P1 database. If the vacuum has finished, jump to instruction
** P2. Otherwise, fall through to the next instruction.
*/
case OP_IncrVacuum: {        /* jump */
#if 0  /* local variables moved into u.ci */
  Btree *pBt;
#endif /* local variables moved into u.ci */

  assert( pOp->p1>=0 && pOp->p1<db->nDb );
  assert( (p->btreeMask & (((yDbMask)1)<<pOp->p1))!=0 );
  u.ci.pBt = db->aDb[pOp->p1].pBt;
  rc = sqlite3BtreeIncrVacuum(u.ci.pBt);
  if( rc==SQLITE_DONE ){
    pc = pOp->p2 - 1;
    rc = SQLITE_OK;
  }
  break;
}
#endif
69205
69206
69207
69208
69209
69210
69211
69212
69213
69214
69215
69216
69217
69218
69219
69220
69221
69222
69223
69224
** xBegin method for that table.
**
** Also, whether or not P4 is set, check that this is not being called from
** within a callback to a virtual table xSync() method. If it is, the error
** code will be set to SQLITE_LOCKED.
*/
case OP_VBegin: {
#if 0  /* local variables moved into u.cg */
  VTable *pVTab;
#endif /* local variables moved into u.cg */
  u.cg.pVTab = pOp->p4.pVtab;
  rc = sqlite3VtabBegin(db, u.cg.pVTab);
  if( u.cg.pVTab ) importVtabErrMsg(p, u.cg.pVTab->pVtab);
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VCreate P1 * * P4 *
**







|

|
|
|
|







69254
69255
69256
69257
69258
69259
69260
69261
69262
69263
69264
69265
69266
69267
69268
69269
69270
69271
69272
69273
** xBegin method for that table.
**
** Also, whether or not P4 is set, check that this is not being called from
** within a callback to a virtual table xSync() method. If it is, the error
** code will be set to SQLITE_LOCKED.
*/
case OP_VBegin: {
#if 0  /* local variables moved into u.cj */
  VTable *pVTab;
#endif /* local variables moved into u.cj */
  u.cj.pVTab = pOp->p4.pVtab;
  rc = sqlite3VtabBegin(db, u.cj.pVTab);
  if( u.cj.pVTab ) importVtabErrMsg(p, u.cj.pVTab->pVtab);
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VCreate P1 * * P4 *
**
69249
69250
69251
69252
69253
69254
69255
69256
69257
69258
69259
69260
69261
69262
69263
69264
69265
69266
69267
69268
69269
69270
69271
69272
69273
69274
69275
69276
69277
69278
69279
69280
69281
69282
69283
69284
69285
69286
69287
69288
/* Opcode: VOpen P1 * * P4 *
**
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** P1 is a cursor number.  This opcode opens a cursor to the virtual
** table and stores that cursor in P1.
*/
case OP_VOpen: {
#if 0  /* local variables moved into u.ch */
  VdbeCursor *pCur;
  sqlite3_vtab_cursor *pVtabCursor;
  sqlite3_vtab *pVtab;
  sqlite3_module *pModule;
#endif /* local variables moved into u.ch */

  u.ch.pCur = 0;
  u.ch.pVtabCursor = 0;
  u.ch.pVtab = pOp->p4.pVtab->pVtab;
  u.ch.pModule = (sqlite3_module *)u.ch.pVtab->pModule;
  assert(u.ch.pVtab && u.ch.pModule);
  rc = u.ch.pModule->xOpen(u.ch.pVtab, &u.ch.pVtabCursor);
  importVtabErrMsg(p, u.ch.pVtab);
  if( SQLITE_OK==rc ){
    /* Initialize sqlite3_vtab_cursor base class */
    u.ch.pVtabCursor->pVtab = u.ch.pVtab;

    /* Initialise vdbe cursor object */
    u.ch.pCur = allocateCursor(p, pOp->p1, 0, -1, 0);
    if( u.ch.pCur ){
      u.ch.pCur->pVtabCursor = u.ch.pVtabCursor;
      u.ch.pCur->pModule = u.ch.pVtabCursor->pVtab->pModule;
    }else{
      db->mallocFailed = 1;
      u.ch.pModule->xClose(u.ch.pVtabCursor);
    }
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE







|




|

|
|
|
|
|
|
|


|


|
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|







69298
69299
69300
69301
69302
69303
69304
69305
69306
69307
69308
69309
69310
69311
69312
69313
69314
69315
69316
69317
69318
69319
69320
69321
69322
69323
69324
69325
69326
69327
69328
69329
69330
69331
69332
69333
69334
69335
69336
69337
/* Opcode: VOpen P1 * * P4 *
**
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** P1 is a cursor number.  This opcode opens a cursor to the virtual
** table and stores that cursor in P1.
*/
case OP_VOpen: {
#if 0  /* local variables moved into u.ck */
  VdbeCursor *pCur;
  sqlite3_vtab_cursor *pVtabCursor;
  sqlite3_vtab *pVtab;
  sqlite3_module *pModule;
#endif /* local variables moved into u.ck */

  u.ck.pCur = 0;
  u.ck.pVtabCursor = 0;
  u.ck.pVtab = pOp->p4.pVtab->pVtab;
  u.ck.pModule = (sqlite3_module *)u.ck.pVtab->pModule;
  assert(u.ck.pVtab && u.ck.pModule);
  rc = u.ck.pModule->xOpen(u.ck.pVtab, &u.ck.pVtabCursor);
  importVtabErrMsg(p, u.ck.pVtab);
  if( SQLITE_OK==rc ){
    /* Initialize sqlite3_vtab_cursor base class */
    u.ck.pVtabCursor->pVtab = u.ck.pVtab;

    /* Initialise vdbe cursor object */
    u.ck.pCur = allocateCursor(p, pOp->p1, 0, -1, 0);
    if( u.ck.pCur ){
      u.ck.pCur->pVtabCursor = u.ck.pVtabCursor;
      u.ck.pCur->pModule = u.ck.pVtabCursor->pVtab->pModule;
    }else{
      db->mallocFailed = 1;
      u.ck.pModule->xClose(u.ck.pVtabCursor);
    }
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
69301
69302
69303
69304
69305
69306
69307
69308
69309
69310
69311
69312
69313
69314
69315
69316
69317
69318
69319
69320
69321
69322
69323
69324
69325
69326
69327
69328
69329
69330
69331
69332
69333
69334
69335
69336
69337
69338
69339
69340
69341
69342
69343
69344
69345
69346
69347
69348
69349
69350
69351
69352
69353
69354
69355
69356
69357
69358
69359
69360
69361
69362
69363
69364
69365
69366
69367
69368
69369
69370
69371
69372
69373
69374
69375
69376
69377
69378
69379
69380
69381
69382
69383
69384
69385
69386
69387
69388
69389
69390
69391
69392
69393
69394
69395
69396
69397
69398
69399
69400
69401
69402
69403
69404
69405
69406
69407
69408
69409
69410
69411
69412
69413
69414
69415
69416
69417
69418
69419
69420
69421
69422
69423
69424
69425
69426
69427
69428
69429
69430
69431
69432
69433
69434
69435
69436
69437
69438
69439
69440
69441
69442
69443
69444
69445
69446
69447
69448
69449
69450
69451
69452
69453
69454
69455
69456
69457
69458
69459
69460
69461
69462
69463
69464
69465
69466
69467
69468
69469
69470
69471
69472
69473
69474
69475
69476
69477
69478
69479
69480
69481
69482
69483
69484
69485
69486
69487
69488
69489
69490
69491
69492
69493
69494
69495
69496
69497
** xFilter method. Registers P3+2..P3+1+argc are the argc
** additional parameters which are passed to
** xFilter as argv. Register P3+2 becomes argv[0] when passed to xFilter.
**
** A jump is made to P2 if the result set after filtering would be empty.
*/
case OP_VFilter: {   /* jump */
#if 0  /* local variables moved into u.ci */
  int nArg;
  int iQuery;
  const sqlite3_module *pModule;
  Mem *pQuery;
  Mem *pArgc;
  sqlite3_vtab_cursor *pVtabCursor;
  sqlite3_vtab *pVtab;
  VdbeCursor *pCur;
  int res;
  int i;
  Mem **apArg;
#endif /* local variables moved into u.ci */

  u.ci.pQuery = &aMem[pOp->p3];
  u.ci.pArgc = &u.ci.pQuery[1];
  u.ci.pCur = p->apCsr[pOp->p1];
  assert( memIsValid(u.ci.pQuery) );
  REGISTER_TRACE(pOp->p3, u.ci.pQuery);
  assert( u.ci.pCur->pVtabCursor );
  u.ci.pVtabCursor = u.ci.pCur->pVtabCursor;
  u.ci.pVtab = u.ci.pVtabCursor->pVtab;
  u.ci.pModule = u.ci.pVtab->pModule;

  /* Grab the index number and argc parameters */
  assert( (u.ci.pQuery->flags&MEM_Int)!=0 && u.ci.pArgc->flags==MEM_Int );
  u.ci.nArg = (int)u.ci.pArgc->u.i;
  u.ci.iQuery = (int)u.ci.pQuery->u.i;

  /* Invoke the xFilter method */
  {
    u.ci.res = 0;
    u.ci.apArg = p->apArg;
    for(u.ci.i = 0; u.ci.i<u.ci.nArg; u.ci.i++){
      u.ci.apArg[u.ci.i] = &u.ci.pArgc[u.ci.i+1];
      sqlite3VdbeMemStoreType(u.ci.apArg[u.ci.i]);
    }

    p->inVtabMethod = 1;
    rc = u.ci.pModule->xFilter(u.ci.pVtabCursor, u.ci.iQuery, pOp->p4.z, u.ci.nArg, u.ci.apArg);
    p->inVtabMethod = 0;
    importVtabErrMsg(p, u.ci.pVtab);
    if( rc==SQLITE_OK ){
      u.ci.res = u.ci.pModule->xEof(u.ci.pVtabCursor);
    }

    if( u.ci.res ){
      pc = pOp->p2 - 1;
    }
  }
  u.ci.pCur->nullRow = 0;

  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VColumn P1 P2 P3 * *
**
** Store the value of the P2-th column of
** the row of the virtual-table that the 
** P1 cursor is pointing to into register P3.
*/
case OP_VColumn: {
#if 0  /* local variables moved into u.cj */
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  Mem *pDest;
  sqlite3_context sContext;
#endif /* local variables moved into u.cj */

  VdbeCursor *pCur = p->apCsr[pOp->p1];
  assert( pCur->pVtabCursor );
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.cj.pDest = &aMem[pOp->p3];
  memAboutToChange(p, u.cj.pDest);
  if( pCur->nullRow ){
    sqlite3VdbeMemSetNull(u.cj.pDest);
    break;
  }
  u.cj.pVtab = pCur->pVtabCursor->pVtab;
  u.cj.pModule = u.cj.pVtab->pModule;
  assert( u.cj.pModule->xColumn );
  memset(&u.cj.sContext, 0, sizeof(u.cj.sContext));

  /* The output cell may already have a buffer allocated. Move
  ** the current contents to u.cj.sContext.s so in case the user-function
  ** can use the already allocated buffer instead of allocating a
  ** new one.
  */
  sqlite3VdbeMemMove(&u.cj.sContext.s, u.cj.pDest);
  MemSetTypeFlag(&u.cj.sContext.s, MEM_Null);

  rc = u.cj.pModule->xColumn(pCur->pVtabCursor, &u.cj.sContext, pOp->p2);
  importVtabErrMsg(p, u.cj.pVtab);
  if( u.cj.sContext.isError ){
    rc = u.cj.sContext.isError;
  }

  /* Copy the result of the function to the P3 register. We
  ** do this regardless of whether or not an error occurred to ensure any
  ** dynamic allocation in u.cj.sContext.s (a Mem struct) is  released.
  */
  sqlite3VdbeChangeEncoding(&u.cj.sContext.s, encoding);
  sqlite3VdbeMemMove(u.cj.pDest, &u.cj.sContext.s);
  REGISTER_TRACE(pOp->p3, u.cj.pDest);
  UPDATE_MAX_BLOBSIZE(u.cj.pDest);

  if( sqlite3VdbeMemTooBig(u.cj.pDest) ){
    goto too_big;
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VNext P1 P2 * * *
**
** Advance virtual table P1 to the next row in its result set and
** jump to instruction P2.  Or, if the virtual table has reached
** the end of its result set, then fall through to the next instruction.
*/
case OP_VNext: {   /* jump */
#if 0  /* local variables moved into u.ck */
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  int res;
  VdbeCursor *pCur;
#endif /* local variables moved into u.ck */

  u.ck.res = 0;
  u.ck.pCur = p->apCsr[pOp->p1];
  assert( u.ck.pCur->pVtabCursor );
  if( u.ck.pCur->nullRow ){
    break;
  }
  u.ck.pVtab = u.ck.pCur->pVtabCursor->pVtab;
  u.ck.pModule = u.ck.pVtab->pModule;
  assert( u.ck.pModule->xNext );

  /* Invoke the xNext() method of the module. There is no way for the
  ** underlying implementation to return an error if one occurs during
  ** xNext(). Instead, if an error occurs, true is returned (indicating that
  ** data is available) and the error code returned when xColumn or
  ** some other method is next invoked on the save virtual table cursor.
  */
  p->inVtabMethod = 1;
  rc = u.ck.pModule->xNext(u.ck.pCur->pVtabCursor);
  p->inVtabMethod = 0;
  importVtabErrMsg(p, u.ck.pVtab);
  if( rc==SQLITE_OK ){
    u.ck.res = u.ck.pModule->xEof(u.ck.pCur->pVtabCursor);
  }

  if( !u.ck.res ){
    /* If there is data, jump to P2 */
    pc = pOp->p2 - 1;
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VRename P1 * * P4 *
**
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** This opcode invokes the corresponding xRename method. The value
** in register P1 is passed as the zName argument to the xRename method.
*/
case OP_VRename: {
#if 0  /* local variables moved into u.cl */
  sqlite3_vtab *pVtab;
  Mem *pName;
#endif /* local variables moved into u.cl */

  u.cl.pVtab = pOp->p4.pVtab->pVtab;
  u.cl.pName = &aMem[pOp->p1];
  assert( u.cl.pVtab->pModule->xRename );
  assert( memIsValid(u.cl.pName) );
  REGISTER_TRACE(pOp->p1, u.cl.pName);
  assert( u.cl.pName->flags & MEM_Str );
  rc = u.cl.pVtab->pModule->xRename(u.cl.pVtab, u.cl.pName->z);
  importVtabErrMsg(p, u.cl.pVtab);
  p->expired = 0;

  break;
}
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE







|











|

|
|
|
|
|
|
|
|
|


|
|
|



|
|
|
|
|



|

|

|


|



|













|




|




|
|

|


|
|
|
|


|



|
|

|
|
|
|




|

|
|
|
|

|














|




|

|
|
|
|


|
|
|








|

|

|


|















|


|

|
|
|
|
|
|
|
|







69350
69351
69352
69353
69354
69355
69356
69357
69358
69359
69360
69361
69362
69363
69364
69365
69366
69367
69368
69369
69370
69371
69372
69373
69374
69375
69376
69377
69378
69379
69380
69381
69382
69383
69384
69385
69386
69387
69388
69389
69390
69391
69392
69393
69394
69395
69396
69397
69398
69399
69400
69401
69402
69403
69404
69405
69406
69407
69408
69409
69410
69411
69412
69413
69414
69415
69416
69417
69418
69419
69420
69421
69422
69423
69424
69425
69426
69427
69428
69429
69430
69431
69432
69433
69434
69435
69436
69437
69438
69439
69440
69441
69442
69443
69444
69445
69446
69447
69448
69449
69450
69451
69452
69453
69454
69455
69456
69457
69458
69459
69460
69461
69462
69463
69464
69465
69466
69467
69468
69469
69470
69471
69472
69473
69474
69475
69476
69477
69478
69479
69480
69481
69482
69483
69484
69485
69486
69487
69488
69489
69490
69491
69492
69493
69494
69495
69496
69497
69498
69499
69500
69501
69502
69503
69504
69505
69506
69507
69508
69509
69510
69511
69512
69513
69514
69515
69516
69517
69518
69519
69520
69521
69522
69523
69524
69525
69526
69527
69528
69529
69530
69531
69532
69533
69534
69535
69536
69537
69538
69539
69540
69541
69542
69543
69544
69545
69546
** xFilter method. Registers P3+2..P3+1+argc are the argc
** additional parameters which are passed to
** xFilter as argv. Register P3+2 becomes argv[0] when passed to xFilter.
**
** A jump is made to P2 if the result set after filtering would be empty.
*/
case OP_VFilter: {   /* jump */
#if 0  /* local variables moved into u.cl */
  int nArg;
  int iQuery;
  const sqlite3_module *pModule;
  Mem *pQuery;
  Mem *pArgc;
  sqlite3_vtab_cursor *pVtabCursor;
  sqlite3_vtab *pVtab;
  VdbeCursor *pCur;
  int res;
  int i;
  Mem **apArg;
#endif /* local variables moved into u.cl */

  u.cl.pQuery = &aMem[pOp->p3];
  u.cl.pArgc = &u.cl.pQuery[1];
  u.cl.pCur = p->apCsr[pOp->p1];
  assert( memIsValid(u.cl.pQuery) );
  REGISTER_TRACE(pOp->p3, u.cl.pQuery);
  assert( u.cl.pCur->pVtabCursor );
  u.cl.pVtabCursor = u.cl.pCur->pVtabCursor;
  u.cl.pVtab = u.cl.pVtabCursor->pVtab;
  u.cl.pModule = u.cl.pVtab->pModule;

  /* Grab the index number and argc parameters */
  assert( (u.cl.pQuery->flags&MEM_Int)!=0 && u.cl.pArgc->flags==MEM_Int );
  u.cl.nArg = (int)u.cl.pArgc->u.i;
  u.cl.iQuery = (int)u.cl.pQuery->u.i;

  /* Invoke the xFilter method */
  {
    u.cl.res = 0;
    u.cl.apArg = p->apArg;
    for(u.cl.i = 0; u.cl.i<u.cl.nArg; u.cl.i++){
      u.cl.apArg[u.cl.i] = &u.cl.pArgc[u.cl.i+1];
      sqlite3VdbeMemStoreType(u.cl.apArg[u.cl.i]);
    }

    p->inVtabMethod = 1;
    rc = u.cl.pModule->xFilter(u.cl.pVtabCursor, u.cl.iQuery, pOp->p4.z, u.cl.nArg, u.cl.apArg);
    p->inVtabMethod = 0;
    importVtabErrMsg(p, u.cl.pVtab);
    if( rc==SQLITE_OK ){
      u.cl.res = u.cl.pModule->xEof(u.cl.pVtabCursor);
    }

    if( u.cl.res ){
      pc = pOp->p2 - 1;
    }
  }
  u.cl.pCur->nullRow = 0;

  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VColumn P1 P2 P3 * *
**
** Store the value of the P2-th column of
** the row of the virtual-table that the 
** P1 cursor is pointing to into register P3.
*/
case OP_VColumn: {
#if 0  /* local variables moved into u.cm */
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  Mem *pDest;
  sqlite3_context sContext;
#endif /* local variables moved into u.cm */

  VdbeCursor *pCur = p->apCsr[pOp->p1];
  assert( pCur->pVtabCursor );
  assert( pOp->p3>0 && pOp->p3<=p->nMem );
  u.cm.pDest = &aMem[pOp->p3];
  memAboutToChange(p, u.cm.pDest);
  if( pCur->nullRow ){
    sqlite3VdbeMemSetNull(u.cm.pDest);
    break;
  }
  u.cm.pVtab = pCur->pVtabCursor->pVtab;
  u.cm.pModule = u.cm.pVtab->pModule;
  assert( u.cm.pModule->xColumn );
  memset(&u.cm.sContext, 0, sizeof(u.cm.sContext));

  /* The output cell may already have a buffer allocated. Move
  ** the current contents to u.cm.sContext.s so in case the user-function
  ** can use the already allocated buffer instead of allocating a
  ** new one.
  */
  sqlite3VdbeMemMove(&u.cm.sContext.s, u.cm.pDest);
  MemSetTypeFlag(&u.cm.sContext.s, MEM_Null);

  rc = u.cm.pModule->xColumn(pCur->pVtabCursor, &u.cm.sContext, pOp->p2);
  importVtabErrMsg(p, u.cm.pVtab);
  if( u.cm.sContext.isError ){
    rc = u.cm.sContext.isError;
  }

  /* Copy the result of the function to the P3 register. We
  ** do this regardless of whether or not an error occurred to ensure any
  ** dynamic allocation in u.cm.sContext.s (a Mem struct) is  released.
  */
  sqlite3VdbeChangeEncoding(&u.cm.sContext.s, encoding);
  sqlite3VdbeMemMove(u.cm.pDest, &u.cm.sContext.s);
  REGISTER_TRACE(pOp->p3, u.cm.pDest);
  UPDATE_MAX_BLOBSIZE(u.cm.pDest);

  if( sqlite3VdbeMemTooBig(u.cm.pDest) ){
    goto too_big;
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VNext P1 P2 * * *
**
** Advance virtual table P1 to the next row in its result set and
** jump to instruction P2.  Or, if the virtual table has reached
** the end of its result set, then fall through to the next instruction.
*/
case OP_VNext: {   /* jump */
#if 0  /* local variables moved into u.cn */
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  int res;
  VdbeCursor *pCur;
#endif /* local variables moved into u.cn */

  u.cn.res = 0;
  u.cn.pCur = p->apCsr[pOp->p1];
  assert( u.cn.pCur->pVtabCursor );
  if( u.cn.pCur->nullRow ){
    break;
  }
  u.cn.pVtab = u.cn.pCur->pVtabCursor->pVtab;
  u.cn.pModule = u.cn.pVtab->pModule;
  assert( u.cn.pModule->xNext );

  /* Invoke the xNext() method of the module. There is no way for the
  ** underlying implementation to return an error if one occurs during
  ** xNext(). Instead, if an error occurs, true is returned (indicating that
  ** data is available) and the error code returned when xColumn or
  ** some other method is next invoked on the save virtual table cursor.
  */
  p->inVtabMethod = 1;
  rc = u.cn.pModule->xNext(u.cn.pCur->pVtabCursor);
  p->inVtabMethod = 0;
  importVtabErrMsg(p, u.cn.pVtab);
  if( rc==SQLITE_OK ){
    u.cn.res = u.cn.pModule->xEof(u.cn.pCur->pVtabCursor);
  }

  if( !u.cn.res ){
    /* If there is data, jump to P2 */
    pc = pOp->p2 - 1;
  }
  break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VRename P1 * * P4 *
**
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** This opcode invokes the corresponding xRename method. The value
** in register P1 is passed as the zName argument to the xRename method.
*/
case OP_VRename: {
#if 0  /* local variables moved into u.co */
  sqlite3_vtab *pVtab;
  Mem *pName;
#endif /* local variables moved into u.co */

  u.co.pVtab = pOp->p4.pVtab->pVtab;
  u.co.pName = &aMem[pOp->p1];
  assert( u.co.pVtab->pModule->xRename );
  assert( memIsValid(u.co.pName) );
  REGISTER_TRACE(pOp->p1, u.co.pName);
  assert( u.co.pName->flags & MEM_Str );
  rc = u.co.pVtab->pModule->xRename(u.co.pVtab, u.co.pName->z);
  importVtabErrMsg(p, u.co.pVtab);
  p->expired = 0;

  break;
}
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE
69515
69516
69517
69518
69519
69520
69521
69522
69523
69524
69525
69526
69527
69528
69529
69530
69531
69532
69533
69534
69535
69536
69537
69538
69539
69540
69541
69542
69543
69544
69545
69546
69547
69548
69549
69550
69551
69552
69553
69554
69555
69556
69557
69558
69559
69560
69561
69562
69563
** a row to delete.
**
** P1 is a boolean flag. If it is set to true and the xUpdate call
** is successful, then the value returned by sqlite3_last_insert_rowid() 
** is set to the value of the rowid for the row just inserted.
*/
case OP_VUpdate: {
#if 0  /* local variables moved into u.cm */
  sqlite3_vtab *pVtab;
  sqlite3_module *pModule;
  int nArg;
  int i;
  sqlite_int64 rowid;
  Mem **apArg;
  Mem *pX;
#endif /* local variables moved into u.cm */

  assert( pOp->p2==1        || pOp->p5==OE_Fail   || pOp->p5==OE_Rollback
       || pOp->p5==OE_Abort || pOp->p5==OE_Ignore || pOp->p5==OE_Replace
  );
  u.cm.pVtab = pOp->p4.pVtab->pVtab;
  u.cm.pModule = (sqlite3_module *)u.cm.pVtab->pModule;
  u.cm.nArg = pOp->p2;
  assert( pOp->p4type==P4_VTAB );
  if( ALWAYS(u.cm.pModule->xUpdate) ){
    u8 vtabOnConflict = db->vtabOnConflict;
    u.cm.apArg = p->apArg;
    u.cm.pX = &aMem[pOp->p3];
    for(u.cm.i=0; u.cm.i<u.cm.nArg; u.cm.i++){
      assert( memIsValid(u.cm.pX) );
      memAboutToChange(p, u.cm.pX);
      sqlite3VdbeMemStoreType(u.cm.pX);
      u.cm.apArg[u.cm.i] = u.cm.pX;
      u.cm.pX++;
    }
    db->vtabOnConflict = pOp->p5;
    rc = u.cm.pModule->xUpdate(u.cm.pVtab, u.cm.nArg, u.cm.apArg, &u.cm.rowid);
    db->vtabOnConflict = vtabOnConflict;
    importVtabErrMsg(p, u.cm.pVtab);
    if( rc==SQLITE_OK && pOp->p1 ){
      assert( u.cm.nArg>1 && u.cm.apArg[0] && (u.cm.apArg[0]->flags&MEM_Null) );
      db->lastRowid = lastRowid = u.cm.rowid;
    }
    if( rc==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);
      }







|







|




|
|
|

|

|
|
|
|
|
|
|
|


|

|

|
|







69564
69565
69566
69567
69568
69569
69570
69571
69572
69573
69574
69575
69576
69577
69578
69579
69580
69581
69582
69583
69584
69585
69586
69587
69588
69589
69590
69591
69592
69593
69594
69595
69596
69597
69598
69599
69600
69601
69602
69603
69604
69605
69606
69607
69608
69609
69610
69611
69612
** a row to delete.
**
** P1 is a boolean flag. If it is set to true and the xUpdate call
** is successful, then the value returned by sqlite3_last_insert_rowid() 
** is set to the value of the rowid for the row just inserted.
*/
case OP_VUpdate: {
#if 0  /* local variables moved into u.cp */
  sqlite3_vtab *pVtab;
  sqlite3_module *pModule;
  int nArg;
  int i;
  sqlite_int64 rowid;
  Mem **apArg;
  Mem *pX;
#endif /* local variables moved into u.cp */

  assert( pOp->p2==1        || pOp->p5==OE_Fail   || pOp->p5==OE_Rollback
       || pOp->p5==OE_Abort || pOp->p5==OE_Ignore || pOp->p5==OE_Replace
  );
  u.cp.pVtab = pOp->p4.pVtab->pVtab;
  u.cp.pModule = (sqlite3_module *)u.cp.pVtab->pModule;
  u.cp.nArg = pOp->p2;
  assert( pOp->p4type==P4_VTAB );
  if( ALWAYS(u.cp.pModule->xUpdate) ){
    u8 vtabOnConflict = db->vtabOnConflict;
    u.cp.apArg = p->apArg;
    u.cp.pX = &aMem[pOp->p3];
    for(u.cp.i=0; u.cp.i<u.cp.nArg; u.cp.i++){
      assert( memIsValid(u.cp.pX) );
      memAboutToChange(p, u.cp.pX);
      sqlite3VdbeMemStoreType(u.cp.pX);
      u.cp.apArg[u.cp.i] = u.cp.pX;
      u.cp.pX++;
    }
    db->vtabOnConflict = pOp->p5;
    rc = u.cp.pModule->xUpdate(u.cp.pVtab, u.cp.nArg, u.cp.apArg, &u.cp.rowid);
    db->vtabOnConflict = vtabOnConflict;
    importVtabErrMsg(p, u.cp.pVtab);
    if( rc==SQLITE_OK && pOp->p1 ){
      assert( u.cp.nArg>1 && u.cp.apArg[0] && (u.cp.apArg[0]->flags&MEM_Null) );
      db->lastRowid = lastRowid = u.cp.rowid;
    }
    if( rc==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);
      }
69609
69610
69611
69612
69613
69614
69615
69616
69617
69618
69619
69620
69621
69622
69623
69624
69625
69626
69627
69628
69629
69630
69631
69632
69633
69634
69635
69636
69637
#ifndef SQLITE_OMIT_TRACE
/* Opcode: Trace * * * P4 *
**
** If tracing is enabled (by the sqlite3_trace()) interface, then
** the UTF-8 string contained in P4 is emitted on the trace callback.
*/
case OP_Trace: {
#if 0  /* local variables moved into u.cn */
  char *zTrace;
  char *z;
#endif /* local variables moved into u.cn */

  if( db->xTrace && (u.cn.zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0 ){
    u.cn.z = sqlite3VdbeExpandSql(p, u.cn.zTrace);
    db->xTrace(db->pTraceArg, u.cn.z);
    sqlite3DbFree(db, u.cn.z);
  }
#ifdef SQLITE_DEBUG
  if( (db->flags & SQLITE_SqlTrace)!=0
   && (u.cn.zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
  ){
    sqlite3DebugPrintf("SQL-trace: %s\n", u.cn.zTrace);
  }
#endif /* SQLITE_DEBUG */
  break;
}
#endif









|


|

|
|
|
|



|

|







69658
69659
69660
69661
69662
69663
69664
69665
69666
69667
69668
69669
69670
69671
69672
69673
69674
69675
69676
69677
69678
69679
69680
69681
69682
69683
69684
69685
69686
#ifndef SQLITE_OMIT_TRACE
/* Opcode: Trace * * * P4 *
**
** If tracing is enabled (by the sqlite3_trace()) interface, then
** the UTF-8 string contained in P4 is emitted on the trace callback.
*/
case OP_Trace: {
#if 0  /* local variables moved into u.cq */
  char *zTrace;
  char *z;
#endif /* local variables moved into u.cq */

  if( db->xTrace && (u.cq.zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0 ){
    u.cq.z = sqlite3VdbeExpandSql(p, u.cq.zTrace);
    db->xTrace(db->pTraceArg, u.cq.z);
    sqlite3DbFree(db, u.cq.z);
  }
#ifdef SQLITE_DEBUG
  if( (db->flags & SQLITE_SqlTrace)!=0
   && (u.cq.zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
  ){
    sqlite3DebugPrintf("SQL-trace: %s\n", u.cq.zTrace);
  }
#endif /* SQLITE_DEBUG */
  break;
}
#endif


70026
70027
70028
70029
70030
70031
70032
70033
70034
70035
70036
70037
70038
70039
70040
70041
70042
70043
70044
70045
70046
70047
70048
70049
70050
      sqlite3VdbeChangeP3(v, 1, pTab->pSchema->iGeneration);

      /* Make sure a mutex is held on the table to be accessed */
      sqlite3VdbeUsesBtree(v, iDb); 

      /* Configure the OP_TableLock instruction */
#ifdef SQLITE_OMIT_SHARED_CACHE
      sqlite3VdbeChangeToNoop(v, 2, 1);
#else
      sqlite3VdbeChangeP1(v, 2, iDb);
      sqlite3VdbeChangeP2(v, 2, pTab->tnum);
      sqlite3VdbeChangeP3(v, 2, flags);
      sqlite3VdbeChangeP4(v, 2, pTab->zName, P4_TRANSIENT);
#endif

      /* Remove either the OP_OpenWrite or OpenRead. Set the P2 
      ** parameter of the other to pTab->tnum.  */
      sqlite3VdbeChangeToNoop(v, 4 - flags, 1);
      sqlite3VdbeChangeP2(v, 3 + flags, pTab->tnum);
      sqlite3VdbeChangeP3(v, 3 + flags, iDb);

      /* Configure the number of columns. Configure the cursor to
      ** think that the table has one more column than it really
      ** does. An OP_Column to retrieve this imaginary column will
      ** always return an SQL NULL. This is useful because it means







|









|







70075
70076
70077
70078
70079
70080
70081
70082
70083
70084
70085
70086
70087
70088
70089
70090
70091
70092
70093
70094
70095
70096
70097
70098
70099
      sqlite3VdbeChangeP3(v, 1, pTab->pSchema->iGeneration);

      /* Make sure a mutex is held on the table to be accessed */
      sqlite3VdbeUsesBtree(v, iDb); 

      /* Configure the OP_TableLock instruction */
#ifdef SQLITE_OMIT_SHARED_CACHE
      sqlite3VdbeChangeToNoop(v, 2);
#else
      sqlite3VdbeChangeP1(v, 2, iDb);
      sqlite3VdbeChangeP2(v, 2, pTab->tnum);
      sqlite3VdbeChangeP3(v, 2, flags);
      sqlite3VdbeChangeP4(v, 2, pTab->zName, P4_TRANSIENT);
#endif

      /* Remove either the OP_OpenWrite or OpenRead. Set the P2 
      ** parameter of the other to pTab->tnum.  */
      sqlite3VdbeChangeToNoop(v, 4 - flags);
      sqlite3VdbeChangeP2(v, 3 + flags, pTab->tnum);
      sqlite3VdbeChangeP3(v, 3 + flags, iDb);

      /* Configure the number of columns. Configure the cursor to
      ** think that the table has one more column than it really
      ** does. An OP_Column to retrieve this imaginary column will
      ** always return an SQL NULL. This is useful because it means
70244
70245
70246
70247
70248
70249
70250

70251
70252
70253
70254
70255
70256
70257
** memory).
*/


#ifndef SQLITE_OMIT_MERGE_SORT

typedef struct VdbeSorterIter VdbeSorterIter;


/*
** NOTES ON DATA STRUCTURE USED FOR N-WAY MERGES:
**
** As keys are added to the sorter, they are written to disk in a series
** of sorted packed-memory-arrays (PMAs). The size of each PMA is roughly
** the same as the cache-size allowed for temporary databases. In order







>







70293
70294
70295
70296
70297
70298
70299
70300
70301
70302
70303
70304
70305
70306
70307
** memory).
*/


#ifndef SQLITE_OMIT_MERGE_SORT

typedef struct VdbeSorterIter VdbeSorterIter;
typedef struct SorterRecord SorterRecord;

/*
** NOTES ON DATA STRUCTURE USED FOR N-WAY MERGES:
**
** As keys are added to the sorter, they are written to disk in a series
** of sorted packed-memory-arrays (PMAs). The size of each PMA is roughly
** the same as the cache-size allowed for temporary databases. In order
70315
70316
70317
70318
70319
70320
70321
70322
70323
70324
70325
70326
70327
70328
70329
70330




70331
70332
70333
70334
70335
70336
70337
70338
70339
70340
70341
70342
70343
70344
70345











70346
70347
70348
70349
70350
70351
70352
**     aTree[] = { X, 0   0, 6    0, 3, 5, 6 }
**
** In other words, each time we advance to the next sorter element, log2(N)
** key comparison operations are required, where N is the number of segments
** being merged (rounded up to the next power of 2).
*/
struct VdbeSorter {
  int nWorking;                   /* Start a new b-tree after this many pages */
  int nBtree;                     /* Current size of b-tree contents as PMA */
  int nTree;                      /* Used size of aTree/aIter (power of 2) */
  VdbeSorterIter *aIter;          /* Array of iterators to merge */
  int *aTree;                     /* Current state of incremental merge */
  i64 iWriteOff;                  /* Current write offset within file pTemp1 */
  i64 iReadOff;                   /* Current read offset within file pTemp1 */
  sqlite3_file *pTemp1;           /* PMA file 1 */
  int nPMA;                       /* Number of PMAs stored in pTemp1 */




};

/*
** The following type is an iterator for a PMA. It caches the current key in 
** variables nKey/aKey. If the iterator is at EOF, pFile==0.
*/
struct VdbeSorterIter {
  i64 iReadOff;                   /* Current read offset */
  i64 iEof;                       /* 1 byte past EOF for this iterator */
  sqlite3_file *pFile;            /* File iterator is reading from */
  int nAlloc;                     /* Bytes of space at aAlloc */
  u8 *aAlloc;                     /* Allocated space */
  int nKey;                       /* Number of bytes in key */
  u8 *aKey;                       /* Pointer to current key */
};












/* Minimum allowable value for the VdbeSorter.nWorking variable */
#define SORTER_MIN_WORKING 10

/* Maximum number of segments to merge in a single pass. */
#define SORTER_MAX_MERGE_COUNT 16








|
<







>
>
>
>















>
>
>
>
>
>
>
>
>
>
>







70365
70366
70367
70368
70369
70370
70371
70372

70373
70374
70375
70376
70377
70378
70379
70380
70381
70382
70383
70384
70385
70386
70387
70388
70389
70390
70391
70392
70393
70394
70395
70396
70397
70398
70399
70400
70401
70402
70403
70404
70405
70406
70407
70408
70409
70410
70411
70412
70413
70414
70415
70416
**     aTree[] = { X, 0   0, 6    0, 3, 5, 6 }
**
** In other words, each time we advance to the next sorter element, log2(N)
** key comparison operations are required, where N is the number of segments
** being merged (rounded up to the next power of 2).
*/
struct VdbeSorter {
  int nInMemory;                  /* Current size of pRecord list as PMA */

  int nTree;                      /* Used size of aTree/aIter (power of 2) */
  VdbeSorterIter *aIter;          /* Array of iterators to merge */
  int *aTree;                     /* Current state of incremental merge */
  i64 iWriteOff;                  /* Current write offset within file pTemp1 */
  i64 iReadOff;                   /* Current read offset within file pTemp1 */
  sqlite3_file *pTemp1;           /* PMA file 1 */
  int nPMA;                       /* Number of PMAs stored in pTemp1 */
  SorterRecord *pRecord;          /* Head of in-memory record list */
  int mnPmaSize;                  /* Minimum PMA size, in bytes */
  int mxPmaSize;                  /* Maximum PMA size, in bytes.  0==no limit */
  UnpackedRecord *pUnpacked;      /* Used to unpack keys */
};

/*
** The following type is an iterator for a PMA. It caches the current key in 
** variables nKey/aKey. If the iterator is at EOF, pFile==0.
*/
struct VdbeSorterIter {
  i64 iReadOff;                   /* Current read offset */
  i64 iEof;                       /* 1 byte past EOF for this iterator */
  sqlite3_file *pFile;            /* File iterator is reading from */
  int nAlloc;                     /* Bytes of space at aAlloc */
  u8 *aAlloc;                     /* Allocated space */
  int nKey;                       /* Number of bytes in key */
  u8 *aKey;                       /* Pointer to current key */
};

/*
** A structure to store a single record. All in-memory records are connected
** together into a linked list headed at VdbeSorter.pRecord using the 
** SorterRecord.pNext pointer.
*/
struct SorterRecord {
  void *pVal;
  int nVal;
  SorterRecord *pNext;
};

/* Minimum allowable value for the VdbeSorter.nWorking variable */
#define SORTER_MIN_WORKING 10

/* Maximum number of segments to merge in a single pass. */
#define SORTER_MAX_MERGE_COUNT 16

70368
70369
70370
70371
70372
70373
70374

70375
70376



70377
70378
70379
70380
70381
70382
70383
  VdbeSorterIter *pIter           /* Iterator to advance */
){
  int rc;                         /* Return Code */
  int nRead;                      /* Number of bytes read */
  int nRec = 0;                   /* Size of record in bytes */
  int iOff = 0;                   /* Size of serialized size varint in bytes */


  nRead = pIter->iEof - pIter->iReadOff;
  if( nRead>5 ) nRead = 5;



  if( nRead<=0 ){
    /* This is an EOF condition */
    vdbeSorterIterZero(db, pIter);
    return SQLITE_OK;
  }

  rc = sqlite3OsRead(pIter->pFile, pIter->aAlloc, nRead, pIter->iReadOff);







>
|
|
>
>
>







70432
70433
70434
70435
70436
70437
70438
70439
70440
70441
70442
70443
70444
70445
70446
70447
70448
70449
70450
70451
  VdbeSorterIter *pIter           /* Iterator to advance */
){
  int rc;                         /* Return Code */
  int nRead;                      /* Number of bytes read */
  int nRec = 0;                   /* Size of record in bytes */
  int iOff = 0;                   /* Size of serialized size varint in bytes */

  assert( pIter->iEof>=pIter->iReadOff );
  if( pIter->iEof-pIter->iReadOff>5 ){
    nRead = 5;
  }else{
    nRead = (int)(pIter->iEof - pIter->iReadOff);
  }
  if( nRead<=0 ){
    /* This is an EOF condition */
    vdbeSorterIterZero(db, pIter);
    return SQLITE_OK;
  }

  rc = sqlite3OsRead(pIter->pFile, pIter->aAlloc, nRead, pIter->iReadOff);
70440
70441
70442
70443
70444
70445
70446
70447
70448
70449
70450
70451
70452
70453
70454
70455
70456
70457
70458
70459
70460
70461
70462
70463
70464
70465
70466
70467
70468
** (i.e. if no IO error occurs), then *piOffset is set to the offset of
** the first byte past the end of the varint before returning. *piVal is
** set to the integer value read. If an error occurs, the final values of
** both *piOffset and *piVal are undefined.
*/
static int vdbeSorterReadVarint(
  sqlite3_file *pFile,            /* File to read from */
  i64 iEof,                       /* Total number of bytes in file */
  i64 *piOffset,                  /* IN/OUT: Read offset in pFile */
  i64 *piVal                      /* OUT: Value read from file */
){
  u8 aVarint[9];                  /* Buffer large enough for a varint */
  i64 iOff = *piOffset;           /* Offset in file to read from */
  int nRead = 9;                  /* Number of bytes to read from file */
  int rc;                         /* Return code */

  assert( iEof>iOff );
  if( (iEof-iOff)<nRead ){
    nRead = iEof-iOff;
  }

  rc = sqlite3OsRead(pFile, aVarint, nRead, iOff);
  if( rc==SQLITE_OK ){
    *piOffset += getVarint(aVarint, (u64 *)piVal);
  }

  return rc;
}








<





<


<
<
<
<
<
|







70508
70509
70510
70511
70512
70513
70514

70515
70516
70517
70518
70519

70520
70521





70522
70523
70524
70525
70526
70527
70528
70529
** (i.e. if no IO error occurs), then *piOffset is set to the offset of
** the first byte past the end of the varint before returning. *piVal is
** set to the integer value read. If an error occurs, the final values of
** both *piOffset and *piVal are undefined.
*/
static int vdbeSorterReadVarint(
  sqlite3_file *pFile,            /* File to read from */

  i64 *piOffset,                  /* IN/OUT: Read offset in pFile */
  i64 *piVal                      /* OUT: Value read from file */
){
  u8 aVarint[9];                  /* Buffer large enough for a varint */
  i64 iOff = *piOffset;           /* Offset in file to read from */

  int rc;                         /* Return code */






  rc = sqlite3OsRead(pFile, aVarint, 9, iOff);
  if( rc==SQLITE_OK ){
    *piOffset += getVarint(aVarint, (u64 *)piVal);
  }

  return rc;
}

70486
70487
70488
70489
70490
70491
70492
70493
70494
70495
70496
70497
70498
70499
70500
70501
70502
70503
70504















































70505
70506
70507
70508
70509
70510
70511
  pIter->pFile = pSorter->pTemp1;
  pIter->iReadOff = iStart;
  pIter->nAlloc = 128;
  pIter->aAlloc = (u8 *)sqlite3DbMallocRaw(db, pIter->nAlloc);
  if( !pIter->aAlloc ){
    rc = SQLITE_NOMEM;
  }else{
    i64 iEof = pSorter->iWriteOff;     /* EOF of file pSorter->pTemp1 */
    i64 nByte;                         /* Total size of PMA in bytes */
    rc = vdbeSorterReadVarint(pSorter->pTemp1, iEof, &pIter->iReadOff, &nByte);
    *pnByte += nByte;
    pIter->iEof = pIter->iReadOff + nByte;
  }
  if( rc==SQLITE_OK ){
    rc = vdbeSorterIterNext(db, pIter);
  }
  return rc;
}
















































/*
** This function is called to compare two iterator keys when merging 
** multiple b-tree segments. Parameter iOut is the index of the aTree[] 
** value to recalculate.
*/
static int vdbeSorterDoCompare(VdbeCursor *pCsr, int iOut){
  VdbeSorter *pSorter = pCsr->pSorter;







<

|









>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







70547
70548
70549
70550
70551
70552
70553

70554
70555
70556
70557
70558
70559
70560
70561
70562
70563
70564
70565
70566
70567
70568
70569
70570
70571
70572
70573
70574
70575
70576
70577
70578
70579
70580
70581
70582
70583
70584
70585
70586
70587
70588
70589
70590
70591
70592
70593
70594
70595
70596
70597
70598
70599
70600
70601
70602
70603
70604
70605
70606
70607
70608
70609
70610
70611
70612
70613
70614
70615
70616
70617
70618
  pIter->pFile = pSorter->pTemp1;
  pIter->iReadOff = iStart;
  pIter->nAlloc = 128;
  pIter->aAlloc = (u8 *)sqlite3DbMallocRaw(db, pIter->nAlloc);
  if( !pIter->aAlloc ){
    rc = SQLITE_NOMEM;
  }else{

    i64 nByte;                         /* Total size of PMA in bytes */
    rc = vdbeSorterReadVarint(pSorter->pTemp1, &pIter->iReadOff, &nByte);
    *pnByte += nByte;
    pIter->iEof = pIter->iReadOff + nByte;
  }
  if( rc==SQLITE_OK ){
    rc = vdbeSorterIterNext(db, pIter);
  }
  return rc;
}


/*
** Compare key1 (buffer pKey1, size nKey1 bytes) with key2 (buffer pKey2, 
** size nKey2 bytes).  Argument pKeyInfo supplies the collation functions
** used by the comparison. If an error occurs, return an SQLite error code.
** Otherwise, return SQLITE_OK and set *pRes to a negative, zero or positive
** value, depending on whether key1 is smaller, equal to or larger than key2.
**
** If the bOmitRowid argument is non-zero, assume both keys end in a rowid
** field. For the purposes of the comparison, ignore it. Also, if bOmitRowid
** is true and key1 contains even a single NULL value, it is considered to
** be less than key2. Even if key2 also contains NULL values.
**
** If pKey2 is passed a NULL pointer, then it is assumed that the pCsr->aSpace
** has been allocated and contains an unpacked record that is used as key2.
*/
static void vdbeSorterCompare(
  VdbeCursor *pCsr,               /* Cursor object (for pKeyInfo) */
  int bOmitRowid,                 /* Ignore rowid field at end of keys */
  void *pKey1, int nKey1,         /* Left side of comparison */
  void *pKey2, int nKey2,         /* Right side of comparison */
  int *pRes                       /* OUT: Result of comparison */
){
  KeyInfo *pKeyInfo = pCsr->pKeyInfo;
  VdbeSorter *pSorter = pCsr->pSorter;
  UnpackedRecord *r2 = pSorter->pUnpacked;
  int i;

  if( pKey2 ){
    sqlite3VdbeRecordUnpack(pKeyInfo, nKey2, pKey2, r2);
  }

  if( bOmitRowid ){
    r2->nField = pKeyInfo->nField;
    assert( r2->nField>0 );
    for(i=0; i<r2->nField; i++){
      if( r2->aMem[i].flags & MEM_Null ){
        *pRes = -1;
        return;
      }
    }
    r2->flags |= UNPACKED_PREFIX_MATCH;
  }

  *pRes = sqlite3VdbeRecordCompare(nKey1, pKey1, r2);
}

/*
** This function is called to compare two iterator keys when merging 
** multiple b-tree segments. Parameter iOut is the index of the aTree[] 
** value to recalculate.
*/
static int vdbeSorterDoCompare(VdbeCursor *pCsr, int iOut){
  VdbeSorter *pSorter = pCsr->pSorter;
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  p2 = &pSorter->aIter[i2];

  if( p1->pFile==0 ){
    iRes = i2;
  }else if( p2->pFile==0 ){
    iRes = i1;
  }else{
    char aSpace[150];
    UnpackedRecord *r1;

    r1 = sqlite3VdbeRecordUnpack(
        pCsr->pKeyInfo, p1->nKey, p1->aKey, aSpace, sizeof(aSpace)
    );
    if( r1==0 ) return SQLITE_NOMEM;

    if( sqlite3VdbeRecordCompare(p2->nKey, p2->aKey, r1)>=0 ){
      iRes = i1;
    }else{
      iRes = i2;
    }
    sqlite3VdbeDeleteUnpackedRecord(r1);
  }

  pSorter->aTree[iOut] = iRes;
  return SQLITE_OK;
}

/*
** Initialize the temporary index cursor just opened as a sorter cursor.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *db, VdbeCursor *pCsr){





  assert( pCsr->pKeyInfo && pCsr->pBt );
  pCsr->pSorter = sqlite3DbMallocZero(db, sizeof(VdbeSorter));

  return (pCsr->pSorter ? SQLITE_OK : SQLITE_NOMEM);



























}

/*
** Free any cursor components allocated by sqlite3VdbeSorterXXX routines.
*/
SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *db, VdbeCursor *pCsr){
  VdbeSorter *pSorter = pCsr->pSorter;
  if( pSorter ){
    if( pSorter->aIter ){
      int i;
      for(i=0; i<pSorter->nTree; i++){
        vdbeSorterIterZero(db, &pSorter->aIter[i]);
      }
      sqlite3DbFree(db, pSorter->aIter);
    }
    if( pSorter->pTemp1 ){
      sqlite3OsCloseFree(pSorter->pTemp1);
    }


    sqlite3DbFree(db, pSorter);
    pCsr->pSorter = 0;
  }
}

/*
** Allocate space for a file-handle and open a temporary file. If successful,
** set *ppFile to point to the malloc'd file-handle and return SQLITE_OK.
** Otherwise, set *ppFile to 0 and return an SQLite error code.
*/
static int vdbeSorterOpenTempFile(sqlite3 *db, sqlite3_file **ppFile){
  int dummy;
  return sqlite3OsOpenMalloc(db->pVfs, 0, ppFile,
      SQLITE_OPEN_TEMP_JOURNAL |
      SQLITE_OPEN_READWRITE    | SQLITE_OPEN_CREATE |
      SQLITE_OPEN_EXCLUSIVE    | SQLITE_OPEN_DELETEONCLOSE, &dummy
  );
}



































/*







































** Write the current contents of the b-tree to a PMA. Return SQLITE_OK
** if successful, or an SQLite error code otherwise.
**
** The format of a PMA is:
**
**     * A varint. This varint contains the total number of bytes of content
**       in the PMA (not including the varint itself).
**
**     * One or more records packed end-to-end in order of ascending keys. 
**       Each record consists of a varint followed by a blob of data (the 
**       key). The varint is the number of bytes in the blob of data.
*/
static int vdbeSorterBtreeToPMA(sqlite3 *db, VdbeCursor *pCsr){
  int rc = SQLITE_OK;             /* Return code */
  VdbeSorter *pSorter = pCsr->pSorter;
  int res = 0;

  /* sqlite3BtreeFirst() cannot fail because sorter btrees are always held
  ** in memory and so an I/O error is not possible. */
  rc = sqlite3BtreeFirst(pCsr->pCursor, &res);
  if( NEVER(rc!=SQLITE_OK) || res ) return rc;
  assert( pSorter->nBtree>0 );





  /* If the first temporary PMA file has not been opened, open it now. */
  if( pSorter->pTemp1==0 ){
    rc = vdbeSorterOpenTempFile(db, &pSorter->pTemp1);
    assert( rc!=SQLITE_OK || pSorter->pTemp1 );
    assert( pSorter->iWriteOff==0 );
    assert( pSorter->nPMA==0 );
  }

  if( rc==SQLITE_OK ){
    i64 iWriteOff = pSorter->iWriteOff;
    void *aMalloc = 0;            /* Array used to hold a single record */
    int nMalloc = 0;              /* Allocated size of aMalloc[] in bytes */


    pSorter->nPMA++;
    for(
      rc = vdbeSorterWriteVarint(pSorter->pTemp1, pSorter->nBtree, &iWriteOff);
      rc==SQLITE_OK && res==0;
      rc = sqlite3BtreeNext(pCsr->pCursor, &res)
    ){
      i64 nKey;                   /* Size of this key in bytes */

      /* Write the size of the record in bytes to the output file */
      (void)sqlite3BtreeKeySize(pCsr->pCursor, &nKey);
      rc = vdbeSorterWriteVarint(pSorter->pTemp1, nKey, &iWriteOff);

      /* Make sure the aMalloc[] buffer is large enough for the record */
      if( rc==SQLITE_OK && nKey>nMalloc ){
        aMalloc = sqlite3DbReallocOrFree(db, aMalloc, nKey);
        if( !aMalloc ){ 
          rc = SQLITE_NOMEM; 
        }else{
          nMalloc = nKey;
        }
      }

      /* Write the record itself to the output file */
      if( rc==SQLITE_OK ){
        /* sqlite3BtreeKey() cannot fail because sorter btrees held in memory */
        rc = sqlite3BtreeKey(pCsr->pCursor, 0, nKey, aMalloc);
        if( ALWAYS(rc==SQLITE_OK) ){
          rc = sqlite3OsWrite(pSorter->pTemp1, aMalloc, nKey, iWriteOff);
          iWriteOff += nKey;
        }
      }

      if( rc!=SQLITE_OK ) break;
    }

    /* This assert verifies that unless an error has occurred, the size of 
    ** the PMA on disk is the same as the expected size stored in
    ** pSorter->nBtree. */ 
    assert( rc!=SQLITE_OK || pSorter->nBtree==(
          iWriteOff-pSorter->iWriteOff-sqlite3VarintLen(pSorter->nBtree)
    ));

    pSorter->iWriteOff = iWriteOff;



    sqlite3DbFree(db, aMalloc);
  }


  pSorter->nBtree = 0;
  return rc;
}

/*
** This function is called on a sorter cursor by the VDBE before each row 
** is inserted into VdbeCursor.pCsr. Argument nKey is the size of the key, in
** bytes, about to be inserted.
**
** If it is determined that the temporary b-tree accessed via VdbeCursor.pCsr
** is large enough, its contents are written to a sorted PMA on disk and the
** tree emptied. This prevents the b-tree (which must be small enough to
** fit entirely in the cache in order to support efficient inserts) from
** growing too large.
**
** An SQLite error code is returned if an error occurs. Otherwise, SQLITE_OK.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterWrite(sqlite3 *db, VdbeCursor *pCsr, int nKey){
  int rc = SQLITE_OK;             /* Return code */



  VdbeSorter *pSorter = pCsr->pSorter;
  if( pSorter ){
    Pager *pPager = sqlite3BtreePager(pCsr->pBt);
    int nPage;                    /* Current size of temporary file in pages */

    /* Sorters never spill to disk */
    assert( sqlite3PagerFile(pPager)->pMethods==0 );

    /* Determine how many pages the temporary b-tree has grown to */
    sqlite3PagerPagecount(pPager, &nPage);



    /* If pSorter->nWorking is still zero, but the temporary file has been
    ** created in the file-system, then the most recent insert into the
    ** current b-tree segment probably caused the cache to overflow (it is
    ** also possible that sqlite3_release_memory() was called). So set the
    ** size of the working set to a little less than the current size of the 
    ** file in pages.  */
    if( pSorter->nWorking==0 && sqlite3PagerUnderStress(pPager) ){
      pSorter->nWorking = nPage-5;
      if( pSorter->nWorking<SORTER_MIN_WORKING ){
        pSorter->nWorking = SORTER_MIN_WORKING;
      }
    }

    /* If the number of pages used by the current b-tree segment is greater
    ** than the size of the working set (VdbeSorter.nWorking), start a new
    ** segment b-tree.  */
    if( pSorter->nWorking && nPage>=pSorter->nWorking ){
      BtCursor *p = pCsr->pCursor;/* Cursor structure to close and reopen */
      int iRoot;                  /* Root page of new tree */

      /* Copy the current contents of the b-tree into a PMA in sorted order.



      ** Close the currently open b-tree cursor. */
      rc = vdbeSorterBtreeToPMA(db, pCsr);


      sqlite3BtreeCloseCursor(p);

      if( rc==SQLITE_OK ){
        rc = sqlite3BtreeDropTable(pCsr->pBt, 2, 0);
#ifdef SQLITE_DEBUG
        sqlite3PagerPagecount(pPager, &nPage);
        assert( rc!=SQLITE_OK || nPage==1 );
#endif
      }
      if( rc==SQLITE_OK ){
        rc = sqlite3BtreeCreateTable(pCsr->pBt, &iRoot, BTREE_BLOBKEY);
      }
      if( rc==SQLITE_OK ){
        assert( iRoot==2 );
        rc = sqlite3BtreeCursor(pCsr->pBt, iRoot, 1, pCsr->pKeyInfo, p);
      }
    }

    pSorter->nBtree += sqlite3VarintLen(nKey) + nKey;
  }
  return rc;
}

/*
** Helper function for sqlite3VdbeSorterRewind(). 
*/
static int vdbeSorterInitMerge(







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  p2 = &pSorter->aIter[i2];

  if( p1->pFile==0 ){
    iRes = i2;
  }else if( p2->pFile==0 ){
    iRes = i1;
  }else{
    int res;
    assert( pCsr->pSorter->pUnpacked!=0 );  /* allocated in vdbeSorterMerge() */
    vdbeSorterCompare(

        pCsr, 0, p1->aKey, p1->nKey, p2->aKey, p2->nKey, &res
    );

    if( res<=0 ){

      iRes = i1;
    }else{
      iRes = i2;
    }

  }

  pSorter->aTree[iOut] = iRes;
  return SQLITE_OK;
}

/*
** Initialize the temporary index cursor just opened as a sorter cursor.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *db, VdbeCursor *pCsr){
  int pgsz;                       /* Page size of main database */
  int mxCache;                    /* Cache size */
  VdbeSorter *pSorter;            /* The new sorter */
  char *d;                        /* Dummy */

  assert( pCsr->pKeyInfo && pCsr->pBt==0 );
  pCsr->pSorter = pSorter = sqlite3DbMallocZero(db, sizeof(VdbeSorter));
  if( pSorter==0 ){
    return SQLITE_NOMEM;
  }
  
  pSorter->pUnpacked = sqlite3VdbeAllocUnpackedRecord(pCsr->pKeyInfo, 0, 0, &d);
  if( pSorter->pUnpacked==0 ) return SQLITE_NOMEM;
  assert( pSorter->pUnpacked==(UnpackedRecord *)d );

  if( !sqlite3TempInMemory(db) ){
    pgsz = sqlite3BtreeGetPageSize(db->aDb[0].pBt);
    pSorter->mnPmaSize = SORTER_MIN_WORKING * pgsz;
    mxCache = db->aDb[0].pSchema->cache_size;
    if( mxCache<SORTER_MIN_WORKING ) mxCache = SORTER_MIN_WORKING;
    pSorter->mxPmaSize = mxCache * pgsz;
  }

  return SQLITE_OK;
}

/*
** Free the list of sorted records starting at pRecord.
*/
static void vdbeSorterRecordFree(sqlite3 *db, SorterRecord *pRecord){
  SorterRecord *p;
  SorterRecord *pNext;
  for(p=pRecord; p; p=pNext){
    pNext = p->pNext;
    sqlite3DbFree(db, p);
  }
}

/*
** Free any cursor components allocated by sqlite3VdbeSorterXXX routines.
*/
SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *db, VdbeCursor *pCsr){
  VdbeSorter *pSorter = pCsr->pSorter;
  if( pSorter ){
    if( pSorter->aIter ){
      int i;
      for(i=0; i<pSorter->nTree; i++){
        vdbeSorterIterZero(db, &pSorter->aIter[i]);
      }
      sqlite3DbFree(db, pSorter->aIter);
    }
    if( pSorter->pTemp1 ){
      sqlite3OsCloseFree(pSorter->pTemp1);
    }
    vdbeSorterRecordFree(db, pSorter->pRecord);
    sqlite3DbFree(db, pSorter->pUnpacked);
    sqlite3DbFree(db, pSorter);
    pCsr->pSorter = 0;
  }
}

/*
** Allocate space for a file-handle and open a temporary file. If successful,
** set *ppFile to point to the malloc'd file-handle and return SQLITE_OK.
** Otherwise, set *ppFile to 0 and return an SQLite error code.
*/
static int vdbeSorterOpenTempFile(sqlite3 *db, sqlite3_file **ppFile){
  int dummy;
  return sqlite3OsOpenMalloc(db->pVfs, 0, ppFile,
      SQLITE_OPEN_TEMP_JOURNAL |
      SQLITE_OPEN_READWRITE    | SQLITE_OPEN_CREATE |
      SQLITE_OPEN_EXCLUSIVE    | SQLITE_OPEN_DELETEONCLOSE, &dummy
  );
}

/*
** Merge the two sorted lists p1 and p2 into a single list.
** Set *ppOut to the head of the new list.
*/
static void vdbeSorterMerge(
  VdbeCursor *pCsr,               /* For pKeyInfo */
  SorterRecord *p1,               /* First list to merge */
  SorterRecord *p2,               /* Second list to merge */
  SorterRecord **ppOut            /* OUT: Head of merged list */
){
  SorterRecord *pFinal = 0;
  SorterRecord **pp = &pFinal;
  void *pVal2 = p2 ? p2->pVal : 0;

  while( p1 && p2 ){
    int res;
    vdbeSorterCompare(pCsr, 0, p1->pVal, p1->nVal, pVal2, p2->nVal, &res);
    if( res<=0 ){
      *pp = p1;
      pp = &p1->pNext;
      p1 = p1->pNext;
      pVal2 = 0;
    }else{
      *pp = p2;
       pp = &p2->pNext;
      p2 = p2->pNext;
      if( p2==0 ) break;
      pVal2 = p2->pVal;
    }
  }
  *pp = p1 ? p1 : p2;
  *ppOut = pFinal;
}

/*
** Sort the linked list of records headed at pCsr->pRecord. Return SQLITE_OK
** if successful, or an SQLite error code (i.e. SQLITE_NOMEM) if an error
** occurs.
*/
static int vdbeSorterSort(VdbeCursor *pCsr){
  int i;
  SorterRecord **aSlot;
  SorterRecord *p;
  VdbeSorter *pSorter = pCsr->pSorter;

  aSlot = (SorterRecord **)sqlite3MallocZero(64 * sizeof(SorterRecord *));
  if( !aSlot ){
    return SQLITE_NOMEM;
  }

  p = pSorter->pRecord;
  while( p ){
    SorterRecord *pNext = p->pNext;
    p->pNext = 0;
    for(i=0; aSlot[i]; i++){
      vdbeSorterMerge(pCsr, p, aSlot[i], &p);
      aSlot[i] = 0;
    }
    aSlot[i] = p;
    p = pNext;
  }

  p = 0;
  for(i=0; i<64; i++){
    vdbeSorterMerge(pCsr, p, aSlot[i], &p);
  }
  pSorter->pRecord = p;

  sqlite3_free(aSlot);
  return SQLITE_OK;
}


/*
** Write the current contents of the in-memory linked-list to a PMA. Return
** SQLITE_OK if successful, or an SQLite error code otherwise.
**
** The format of a PMA is:
**
**     * A varint. This varint contains the total number of bytes of content
**       in the PMA (not including the varint itself).
**
**     * One or more records packed end-to-end in order of ascending keys. 
**       Each record consists of a varint followed by a blob of data (the 
**       key). The varint is the number of bytes in the blob of data.
*/
static int vdbeSorterListToPMA(sqlite3 *db, VdbeCursor *pCsr){
  int rc = SQLITE_OK;             /* Return code */
  VdbeSorter *pSorter = pCsr->pSorter;



  if( pSorter->nInMemory==0 ){


    assert( pSorter->pRecord==0 );
    return rc;
  }

  rc = vdbeSorterSort(pCsr);

  /* If the first temporary PMA file has not been opened, open it now. */
  if( rc==SQLITE_OK && pSorter->pTemp1==0 ){
    rc = vdbeSorterOpenTempFile(db, &pSorter->pTemp1);
    assert( rc!=SQLITE_OK || pSorter->pTemp1 );
    assert( pSorter->iWriteOff==0 );
    assert( pSorter->nPMA==0 );
  }

  if( rc==SQLITE_OK ){
    i64 iOff = pSorter->iWriteOff;
    SorterRecord *p;
    SorterRecord *pNext = 0;
    static const char eightZeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };

    pSorter->nPMA++;

    rc = vdbeSorterWriteVarint(pSorter->pTemp1, pSorter->nInMemory, &iOff);
    for(p=pSorter->pRecord; rc==SQLITE_OK && p; p=pNext){



      pNext = p->pNext;


      rc = vdbeSorterWriteVarint(pSorter->pTemp1, p->nVal, &iOff);












      if( rc==SQLITE_OK ){



        rc = sqlite3OsWrite(pSorter->pTemp1, p->pVal, p->nVal, iOff);
        iOff += p->nVal;
      }

      sqlite3DbFree(db, p);

    }

    /* This assert verifies that unless an error has occurred, the size of 
    ** the PMA on disk is the same as the expected size stored in
    ** pSorter->nInMemory. */ 
    assert( rc!=SQLITE_OK || pSorter->nInMemory==(
          iOff-pSorter->iWriteOff-sqlite3VarintLen(pSorter->nInMemory)
    ));

    pSorter->iWriteOff = iOff;
    if( rc==SQLITE_OK ){
      /* Terminate each file with 8 extra bytes so that from any offset
      ** in the file we can always read 9 bytes without a SHORT_READ error */
      rc = sqlite3OsWrite(pSorter->pTemp1, eightZeros, 8, iOff);
    }
    pSorter->pRecord = p;
  }

  return rc;
}

/*
** Add a record to the sorter.










*/
SQLITE_PRIVATE int sqlite3VdbeSorterWrite(
  sqlite3 *db,                    /* Database handle */
  VdbeCursor *pCsr,               /* Sorter cursor */
  Mem *pVal                       /* Memory cell containing record */
){
  VdbeSorter *pSorter = pCsr->pSorter;
  int rc = SQLITE_OK;             /* Return Code */

  SorterRecord *pNew;             /* New list element */

  assert( pSorter );
  pSorter->nInMemory += sqlite3VarintLen(pVal->n) + pVal->n;


  pNew = (SorterRecord *)sqlite3DbMallocRaw(db, pVal->n + sizeof(SorterRecord));
  if( pNew==0 ){
    rc = SQLITE_NOMEM;
  }else{
    pNew->pVal = (void *)&pNew[1];
    memcpy(pNew->pVal, pVal->z, pVal->n);



    pNew->nVal = pVal->n;

    pNew->pNext = pSorter->pRecord;

    pSorter->pRecord = pNew;
  }









  /* See if the contents of the sorter should now be written out. They
  ** are written out when either of the following are true:
  **
  **   * The total memory allocated for the in-memory list is greater 
  **     than (page-size * cache-size), or

  **
  **   * The total memory allocated for the in-memory list is greater 
  **     than (page-size * 10) and sqlite3HeapNearlyFull() returns true.
  */
  if( rc==SQLITE_OK && pSorter->mxPmaSize>0 && (

        (pSorter->nInMemory>pSorter->mxPmaSize)
     || (pSorter->nInMemory>pSorter->mnPmaSize && sqlite3HeapNearlyFull())
  )){



    rc = vdbeSorterListToPMA(db, pCsr);


    pSorter->nInMemory = 0;

  }




  return rc;
}

/*
** Helper function for sqlite3VdbeSorterRewind(). 
*/
static int vdbeSorterInitMerge(
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70812
70813




70814
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70820
  i64 iWrite2 = 0;                /* Write offset for pTemp2 */
  int nIter;                      /* Number of iterators used */
  int nByte;                      /* Bytes of space required for aIter/aTree */
  int N = 2;                      /* Power of 2 >= nIter */

  assert( pSorter );

  /* Write the current b-tree to a PMA. Close the b-tree cursor. */
  rc = vdbeSorterBtreeToPMA(db, pCsr);
  sqlite3BtreeCloseCursor(pCsr->pCursor);
  if( rc!=SQLITE_OK ) return rc;
  if( pSorter->nPMA==0 ){
    *pbEof = 1;

    return SQLITE_OK;
  }





  /* Allocate space for aIter[] and aTree[]. */
  nIter = pSorter->nPMA;
  if( nIter>SORTER_MAX_MERGE_COUNT ) nIter = SORTER_MAX_MERGE_COUNT;
  assert( nIter>0 );
  while( N<nIter ) N += N;
  nByte = N * (sizeof(int) + sizeof(VdbeSorterIter));







|
|
|
<

|
>
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>
>
>
>







70967
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70976

70977
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70979
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70983
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70986
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70989
70990
70991
70992
  i64 iWrite2 = 0;                /* Write offset for pTemp2 */
  int nIter;                      /* Number of iterators used */
  int nByte;                      /* Bytes of space required for aIter/aTree */
  int N = 2;                      /* Power of 2 >= nIter */

  assert( pSorter );

  /* If no data has been written to disk, then do not do so now. Instead,
  ** sort the VdbeSorter.pRecord list. The vdbe layer will read data directly
  ** from the in-memory list.  */

  if( pSorter->nPMA==0 ){
    *pbEof = !pSorter->pRecord;
    assert( pSorter->aTree==0 );
    return vdbeSorterSort(pCsr);
  }

  /* Write the current b-tree to a PMA. Close the b-tree cursor. */
  rc = vdbeSorterListToPMA(db, pCsr);
  if( rc!=SQLITE_OK ) return rc;

  /* Allocate space for aIter[] and aTree[]. */
  nIter = pSorter->nPMA;
  if( nIter>SORTER_MAX_MERGE_COUNT ) nIter = SORTER_MAX_MERGE_COUNT;
  assert( nIter>0 );
  while( N<nIter ) N += N;
  nByte = N * (sizeof(int) + sizeof(VdbeSorterIter));
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70896
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70898
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70900



70901
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70910








70911





















70912
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70937























70938
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70944
}

/*
** Advance to the next element in the sorter.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *db, VdbeCursor *pCsr, int *pbEof){
  VdbeSorter *pSorter = pCsr->pSorter;



  int iPrev = pSorter->aTree[1];  /* Index of iterator to advance */
  int i;                          /* Index of aTree[] to recalculate */
  int rc;                         /* Return code */

  rc = vdbeSorterIterNext(db, &pSorter->aIter[iPrev]);
  for(i=(pSorter->nTree+iPrev)/2; rc==SQLITE_OK && i>0; i=i/2){
    rc = vdbeSorterDoCompare(pCsr, i);
  }

  *pbEof = (pSorter->aIter[pSorter->aTree[1]].pFile==0);








  return rc;





















}

/*
** Copy the current sorter key into the memory cell pOut.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(VdbeCursor *pCsr, Mem *pOut){
  VdbeSorter *pSorter = pCsr->pSorter;
  VdbeSorterIter *pIter;

  pIter = &pSorter->aIter[ pSorter->aTree[1] ];

  /* Coverage testing note: As things are currently, this call will always
  ** succeed. This is because the memory cell passed by the VDBE layer 
  ** happens to be the same one as was used to assemble the keys before they
  ** were passed to the sorter - meaning it is always large enough for the
  ** largest key. But this could change very easily, so we leave the call
  ** to sqlite3VdbeMemGrow() in. */
  if( NEVER(sqlite3VdbeMemGrow(pOut, pIter->nKey, 0)) ){
    return SQLITE_NOMEM;
  }
  pOut->n = pIter->nKey;
  MemSetTypeFlag(pOut, MEM_Blob);
  memcpy(pOut->z, pIter->aKey, pIter->nKey);

  return SQLITE_OK;
}
























#endif /* #ifndef SQLITE_OMIT_MERGE_SORT */

/************** End of vdbesort.c ********************************************/
/************** Begin file journal.c *****************************************/
/*
** 2007 August 22







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>

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>







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<
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<
<
<
<
<
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<


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>
>
>
>
>
>
>
>
>
>
>
>
>







71066
71067
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71069
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71077

71078
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71123

71124





71125

71126
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71161
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71163
}

/*
** Advance to the next element in the sorter.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *db, VdbeCursor *pCsr, int *pbEof){
  VdbeSorter *pSorter = pCsr->pSorter;
  int rc;                         /* Return code */

  if( pSorter->aTree ){
    int iPrev = pSorter->aTree[1];/* Index of iterator to advance */
    int i;                        /* Index of aTree[] to recalculate */


    rc = vdbeSorterIterNext(db, &pSorter->aIter[iPrev]);
    for(i=(pSorter->nTree+iPrev)/2; rc==SQLITE_OK && i>0; i=i/2){
      rc = vdbeSorterDoCompare(pCsr, i);
    }

    *pbEof = (pSorter->aIter[pSorter->aTree[1]].pFile==0);
  }else{
    SorterRecord *pFree = pSorter->pRecord;
    pSorter->pRecord = pFree->pNext;
    pFree->pNext = 0;
    vdbeSorterRecordFree(db, pFree);
    *pbEof = !pSorter->pRecord;
    rc = SQLITE_OK;
  }
  return rc;
}

/*
** Return a pointer to a buffer owned by the sorter that contains the 
** current key.
*/
static void *vdbeSorterRowkey(
  VdbeSorter *pSorter,            /* Sorter object */
  int *pnKey                      /* OUT: Size of current key in bytes */
){
  void *pKey;
  if( pSorter->aTree ){
    VdbeSorterIter *pIter;
    pIter = &pSorter->aIter[ pSorter->aTree[1] ];
    *pnKey = pIter->nKey;
    pKey = pIter->aKey;
  }else{
    *pnKey = pSorter->pRecord->nVal;
    pKey = pSorter->pRecord->pVal;
  }
  return pKey;
}

/*
** Copy the current sorter key into the memory cell pOut.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(VdbeCursor *pCsr, Mem *pOut){
  VdbeSorter *pSorter = pCsr->pSorter;
  void *pKey; int nKey;           /* Sorter key to copy into pOut */


  pKey = vdbeSorterRowkey(pSorter, &nKey);





  if( sqlite3VdbeMemGrow(pOut, nKey, 0) ){

    return SQLITE_NOMEM;
  }
  pOut->n = nKey;
  MemSetTypeFlag(pOut, MEM_Blob);
  memcpy(pOut->z, pKey, nKey);

  return SQLITE_OK;
}

/*
** Compare the key in memory cell pVal with the key that the sorter cursor
** passed as the first argument currently points to. For the purposes of
** the comparison, ignore the rowid field at the end of each record.
**
** If an error occurs, return an SQLite error code (i.e. SQLITE_NOMEM).
** Otherwise, set *pRes to a negative, zero or positive value if the
** key in pVal is smaller than, equal to or larger than the current sorter
** key.
*/
SQLITE_PRIVATE int sqlite3VdbeSorterCompare(
  VdbeCursor *pCsr,               /* Sorter cursor */
  Mem *pVal,                      /* Value to compare to current sorter key */
  int *pRes                       /* OUT: Result of comparison */
){
  VdbeSorter *pSorter = pCsr->pSorter;
  void *pKey; int nKey;           /* Sorter key to compare pVal with */

  pKey = vdbeSorterRowkey(pSorter, &nKey);
  vdbeSorterCompare(pCsr, 1, pVal->z, pVal->n, pKey, nKey, pRes);
  return SQLITE_OK;
}

#endif /* #ifndef SQLITE_OMIT_MERGE_SORT */

/************** End of vdbesort.c ********************************************/
/************** Begin file journal.c *****************************************/
/*
** 2007 August 22
73697
73698
73699
73700
73701
73702
73703

73704
73705
73706
73707
73708
73709
73710
73711
    struct SrcList_item *pOldItem = &p->a[i];
    Table *pTab;
    pNewItem->zDatabase = sqlite3DbStrDup(db, pOldItem->zDatabase);
    pNewItem->zName = sqlite3DbStrDup(db, pOldItem->zName);
    pNewItem->zAlias = sqlite3DbStrDup(db, pOldItem->zAlias);
    pNewItem->jointype = pOldItem->jointype;
    pNewItem->iCursor = pOldItem->iCursor;

    pNewItem->isPopulated = pOldItem->isPopulated;
    pNewItem->isCorrelated = pOldItem->isCorrelated;
    pNewItem->zIndex = sqlite3DbStrDup(db, pOldItem->zIndex);
    pNewItem->notIndexed = pOldItem->notIndexed;
    pNewItem->pIndex = pOldItem->pIndex;
    pTab = pNewItem->pTab = pOldItem->pTab;
    if( pTab ){
      pTab->nRef++;







>
|







73916
73917
73918
73919
73920
73921
73922
73923
73924
73925
73926
73927
73928
73929
73930
73931
    struct SrcList_item *pOldItem = &p->a[i];
    Table *pTab;
    pNewItem->zDatabase = sqlite3DbStrDup(db, pOldItem->zDatabase);
    pNewItem->zName = sqlite3DbStrDup(db, pOldItem->zName);
    pNewItem->zAlias = sqlite3DbStrDup(db, pOldItem->zAlias);
    pNewItem->jointype = pOldItem->jointype;
    pNewItem->iCursor = pOldItem->iCursor;
    pNewItem->addrFillSub = pOldItem->addrFillSub;
    pNewItem->regReturn = pOldItem->regReturn;
    pNewItem->isCorrelated = pOldItem->isCorrelated;
    pNewItem->zIndex = sqlite3DbStrDup(db, pOldItem->zIndex);
    pNewItem->notIndexed = pOldItem->notIndexed;
    pNewItem->pIndex = pOldItem->pIndex;
    pTab = pNewItem->pTab = pOldItem->pTab;
    if( pTab ){
      pTab->nRef++;
74257
74258
74259
74260
74261
74262
74263
74264
74265
74266
74267
74268
74269
74270
74271
74272
    ** successful here.
    */
    assert(v);
    if( iCol<0 ){
      int iMem = ++pParse->nMem;
      int iAddr;

      iAddr = sqlite3VdbeAddOp1(v, OP_If, iMem);
      sqlite3VdbeAddOp2(v, OP_Integer, 1, iMem);

      sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
      eType = IN_INDEX_ROWID;

      sqlite3VdbeJumpHere(v, iAddr);
    }else{
      Index *pIdx;                         /* Iterator variable */







|
<







74477
74478
74479
74480
74481
74482
74483
74484

74485
74486
74487
74488
74489
74490
74491
    ** successful here.
    */
    assert(v);
    if( iCol<0 ){
      int iMem = ++pParse->nMem;
      int iAddr;

      iAddr = sqlite3VdbeAddOp1(v, OP_Once, iMem);


      sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
      eType = IN_INDEX_ROWID;

      sqlite3VdbeJumpHere(v, iAddr);
    }else{
      Index *pIdx;                         /* Iterator variable */
74289
74290
74291
74292
74293
74294
74295
74296
74297
74298
74299
74300
74301
74302
74303
74304
         && (!mustBeUnique || (pIdx->nColumn==1 && pIdx->onError!=OE_None))
        ){
          int iMem = ++pParse->nMem;
          int iAddr;
          char *pKey;
  
          pKey = (char *)sqlite3IndexKeyinfo(pParse, pIdx);
          iAddr = sqlite3VdbeAddOp1(v, OP_If, iMem);
          sqlite3VdbeAddOp2(v, OP_Integer, 1, iMem);
  
          sqlite3VdbeAddOp4(v, OP_OpenRead, iTab, pIdx->tnum, iDb,
                               pKey,P4_KEYINFO_HANDOFF);
          VdbeComment((v, "%s", pIdx->zName));
          eType = IN_INDEX_INDEX;

          sqlite3VdbeJumpHere(v, iAddr);







|
<







74508
74509
74510
74511
74512
74513
74514
74515

74516
74517
74518
74519
74520
74521
74522
         && (!mustBeUnique || (pIdx->nColumn==1 && pIdx->onError!=OE_None))
        ){
          int iMem = ++pParse->nMem;
          int iAddr;
          char *pKey;
  
          pKey = (char *)sqlite3IndexKeyinfo(pParse, pIdx);
          iAddr = sqlite3VdbeAddOp1(v, OP_Once, iMem);

  
          sqlite3VdbeAddOp4(v, OP_OpenRead, iTab, pIdx->tnum, iDb,
                               pKey,P4_KEYINFO_HANDOFF);
          VdbeComment((v, "%s", pIdx->zName));
          eType = IN_INDEX_INDEX;

          sqlite3VdbeJumpHere(v, iAddr);
74371
74372
74373
74374
74375
74376
74377
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74379
74380
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74383
74384
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74399
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74404
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74409
74410
74411
#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3CodeSubselect(
  Parse *pParse,          /* Parsing context */
  Expr *pExpr,            /* The IN, SELECT, or EXISTS operator */
  int rMayHaveNull,       /* Register that records whether NULLs exist in RHS */
  int isRowid             /* If true, LHS of IN operator is a rowid */
){
  int testAddr = 0;                       /* One-time test address */
  int rReg = 0;                           /* Register storing resulting */
  Vdbe *v = sqlite3GetVdbe(pParse);
  if( NEVER(v==0) ) return 0;
  sqlite3ExprCachePush(pParse);

  /* This code must be run in its entirety every time it is encountered
  ** if any of the following is true:
  **
  **    *  The right-hand side is a correlated subquery
  **    *  The right-hand side is an expression list containing variables
  **    *  We are inside a trigger
  **
  ** If all of the above are false, then we can run this code just once
  ** save the results, and reuse the same result on subsequent invocations.
  */
  if( !ExprHasAnyProperty(pExpr, EP_VarSelect) && !pParse->pTriggerTab ){
    int mem = ++pParse->nMem;
    sqlite3VdbeAddOp1(v, OP_If, mem);
    testAddr = sqlite3VdbeAddOp2(v, OP_Integer, 1, mem);
    assert( testAddr>0 || pParse->db->mallocFailed );
  }

#ifndef SQLITE_OMIT_EXPLAIN
  if( pParse->explain==2 ){
    char *zMsg = sqlite3MPrintf(
        pParse->db, "EXECUTE %s%s SUBQUERY %d", testAddr?"":"CORRELATED ",
        pExpr->op==TK_IN?"LIST":"SCALAR", pParse->iNextSelectId
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
#endif

  switch( pExpr->op ){







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<
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<





|







74589
74590
74591
74592
74593
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74595
74596
74597
74598
74599
74600
74601
74602
74603
74604
74605
74606
74607
74608
74609
74610
74611
74612
74613

74614

74615
74616
74617
74618
74619
74620
74621
74622
74623
74624
74625
74626
74627
#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3CodeSubselect(
  Parse *pParse,          /* Parsing context */
  Expr *pExpr,            /* The IN, SELECT, or EXISTS operator */
  int rMayHaveNull,       /* Register that records whether NULLs exist in RHS */
  int isRowid             /* If true, LHS of IN operator is a rowid */
){
  int testAddr = -1;                      /* One-time test address */
  int rReg = 0;                           /* Register storing resulting */
  Vdbe *v = sqlite3GetVdbe(pParse);
  if( NEVER(v==0) ) return 0;
  sqlite3ExprCachePush(pParse);

  /* This code must be run in its entirety every time it is encountered
  ** if any of the following is true:
  **
  **    *  The right-hand side is a correlated subquery
  **    *  The right-hand side is an expression list containing variables
  **    *  We are inside a trigger
  **
  ** If all of the above are false, then we can run this code just once
  ** save the results, and reuse the same result on subsequent invocations.
  */
  if( !ExprHasAnyProperty(pExpr, EP_VarSelect) && !pParse->pTriggerTab ){
    int mem = ++pParse->nMem;

    testAddr = sqlite3VdbeAddOp1(v, OP_Once, mem);

  }

#ifndef SQLITE_OMIT_EXPLAIN
  if( pParse->explain==2 ){
    char *zMsg = sqlite3MPrintf(
        pParse->db, "EXECUTE %s%s SUBQUERY %d", testAddr>=0?"":"CORRELATED ",
        pExpr->op==TK_IN?"LIST":"SCALAR", pParse->iNextSelectId
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
#endif

  switch( pExpr->op ){
74489
74490
74491
74492
74493
74494
74495
74496
74497
74498
74499
74500
74501
74502
74503
74504
74505
          int iValToIns;

          /* If the expression is not constant then we will need to
          ** disable the test that was generated above that makes sure
          ** this code only executes once.  Because for a non-constant
          ** expression we need to rerun this code each time.
          */
          if( testAddr && !sqlite3ExprIsConstant(pE2) ){
            sqlite3VdbeChangeToNoop(v, testAddr-1, 2);
            testAddr = 0;
          }

          /* Evaluate the expression and insert it into the temp table */
          if( isRowid && sqlite3ExprIsInteger(pE2, &iValToIns) ){
            sqlite3VdbeAddOp3(v, OP_InsertInt, pExpr->iTable, r2, iValToIns);
          }else{
            r3 = sqlite3ExprCodeTarget(pParse, pE2, r1);







|
|
|







74705
74706
74707
74708
74709
74710
74711
74712
74713
74714
74715
74716
74717
74718
74719
74720
74721
          int iValToIns;

          /* If the expression is not constant then we will need to
          ** disable the test that was generated above that makes sure
          ** this code only executes once.  Because for a non-constant
          ** expression we need to rerun this code each time.
          */
          if( testAddr>=0 && !sqlite3ExprIsConstant(pE2) ){
            sqlite3VdbeChangeToNoop(v, testAddr);
            testAddr = -1;
          }

          /* Evaluate the expression and insert it into the temp table */
          if( isRowid && sqlite3ExprIsInteger(pE2, &iValToIns) ){
            sqlite3VdbeAddOp3(v, OP_InsertInt, pExpr->iTable, r2, iValToIns);
          }else{
            r3 = sqlite3ExprCodeTarget(pParse, pE2, r1);
74560
74561
74562
74563
74564
74565
74566
74567
74568
74569
74570
74571
74572
74573
74574
74575
      }
      rReg = dest.iParm;
      ExprSetIrreducible(pExpr);
      break;
    }
  }

  if( testAddr ){
    sqlite3VdbeJumpHere(v, testAddr-1);
  }
  sqlite3ExprCachePop(pParse, 1);

  return rReg;
}
#endif /* SQLITE_OMIT_SUBQUERY */








|
|







74776
74777
74778
74779
74780
74781
74782
74783
74784
74785
74786
74787
74788
74789
74790
74791
      }
      rReg = dest.iParm;
      ExprSetIrreducible(pExpr);
      break;
    }
  }

  if( testAddr>=0 ){
    sqlite3VdbeJumpHere(v, testAddr);
  }
  sqlite3ExprCachePop(pParse, 1);

  return rReg;
}
#endif /* SQLITE_OMIT_SUBQUERY */

75083
75084
75085
75086
75087
75088
75089
75090
75091
75092
75093
75094
75095
75096
75097
      AggInfo *pAggInfo = pExpr->pAggInfo;
      struct AggInfo_col *pCol = &pAggInfo->aCol[pExpr->iAgg];
      if( !pAggInfo->directMode ){
        assert( pCol->iMem>0 );
        inReg = pCol->iMem;
        break;
      }else if( pAggInfo->useSortingIdx ){
        sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdx,
                              pCol->iSorterColumn, target);
        break;
      }
      /* Otherwise, fall thru into the TK_COLUMN case */
    }
    case TK_COLUMN: {
      if( pExpr->iTable<0 ){







|







75299
75300
75301
75302
75303
75304
75305
75306
75307
75308
75309
75310
75311
75312
75313
      AggInfo *pAggInfo = pExpr->pAggInfo;
      struct AggInfo_col *pCol = &pAggInfo->aCol[pExpr->iAgg];
      if( !pAggInfo->directMode ){
        assert( pCol->iMem>0 );
        inReg = pCol->iMem;
        break;
      }else if( pAggInfo->useSortingIdx ){
        sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab,
                              pCol->iSorterColumn, target);
        break;
      }
      /* Otherwise, fall thru into the TK_COLUMN case */
    }
    case TK_COLUMN: {
      if( pExpr->iTable<0 ){
81241
81242
81243
81244
81245
81246
81247

81248
81249
81250
81251
81252
81253
81254
81255
81256
81257
81258
81259
81260
81261
81262
81263
81264
81265
81266
81267
81268
81269
81270
81271
*/
static void sqlite3RefillIndex(Parse *pParse, Index *pIndex, int memRootPage){
  Table *pTab = pIndex->pTable;  /* The table that is indexed */
  int iTab = pParse->nTab++;     /* Btree cursor used for pTab */
  int iIdx = pParse->nTab++;     /* Btree cursor used for pIndex */
  int iSorter = iTab;            /* Cursor opened by OpenSorter (if in use) */
  int addr1;                     /* Address of top of loop */

  int tnum;                      /* Root page of index */
  Vdbe *v;                       /* Generate code into this virtual machine */
  KeyInfo *pKey;                 /* KeyInfo for index */
  int regIdxKey;                 /* Registers containing the index key */
  int regRecord;                 /* Register holding assemblied index record */
  sqlite3 *db = pParse->db;      /* The database connection */
  int iDb = sqlite3SchemaToIndex(db, pIndex->pSchema);

  /* Set bUseSorter to use OP_OpenSorter, or clear it to insert directly 
  ** into the index. The sorter is used unless either OMIT_MERGE_SORT is
  ** defined or the system is configured to store temp files in-memory. */
#ifdef SQLITE_OMIT_MERGE_SORT
  static const int bUseSorter = 0;
#else
  const int bUseSorter = !sqlite3TempInMemory(pParse->db);
#endif

#ifndef SQLITE_OMIT_AUTHORIZATION
  if( sqlite3AuthCheck(pParse, SQLITE_REINDEX, pIndex->zName, 0,
      db->aDb[iDb].zName ) ){
    return;
  }
#endif








>








<
<
<
<
<
<
<
<
<







81457
81458
81459
81460
81461
81462
81463
81464
81465
81466
81467
81468
81469
81470
81471
81472









81473
81474
81475
81476
81477
81478
81479
*/
static void sqlite3RefillIndex(Parse *pParse, Index *pIndex, int memRootPage){
  Table *pTab = pIndex->pTable;  /* The table that is indexed */
  int iTab = pParse->nTab++;     /* Btree cursor used for pTab */
  int iIdx = pParse->nTab++;     /* Btree cursor used for pIndex */
  int iSorter = iTab;            /* Cursor opened by OpenSorter (if in use) */
  int addr1;                     /* Address of top of loop */
  int addr2;                     /* Address to jump to for next iteration */
  int tnum;                      /* Root page of index */
  Vdbe *v;                       /* Generate code into this virtual machine */
  KeyInfo *pKey;                 /* KeyInfo for index */
  int regIdxKey;                 /* Registers containing the index key */
  int regRecord;                 /* Register holding assemblied index record */
  sqlite3 *db = pParse->db;      /* The database connection */
  int iDb = sqlite3SchemaToIndex(db, pIndex->pSchema);










#ifndef SQLITE_OMIT_AUTHORIZATION
  if( sqlite3AuthCheck(pParse, SQLITE_REINDEX, pIndex->zName, 0,
      db->aDb[iDb].zName ) ){
    return;
  }
#endif

81283
81284
81285
81286
81287
81288
81289

81290
81291
81292
81293
81294
81295
81296
81297
81298
81299
81300

81301
81302
81303
81304

81305
81306
81307
81308


81309





81310

81311




81312
81313
81314
81315
81316
81317
81318
81319
81320
81321
81322
81323
81324
81325
81326
81327
81328
81329
81330
81331

81332
81333
81334
81335
81336
81337
81338
81339
81340
  pKey = sqlite3IndexKeyinfo(pParse, pIndex);
  sqlite3VdbeAddOp4(v, OP_OpenWrite, iIdx, tnum, iDb, 
                    (char *)pKey, P4_KEYINFO_HANDOFF);
  if( memRootPage>=0 ){
    sqlite3VdbeChangeP5(v, 1);
  }


  /* Open the sorter cursor if we are to use one. */
  if( bUseSorter ){
    iSorter = pParse->nTab++;
    sqlite3VdbeAddOp4(v, OP_OpenSorter, iSorter, 0, 0, (char*)pKey, P4_KEYINFO);
    sqlite3VdbeChangeP5(v, BTREE_SORTER);
  }

  /* Open the table. Loop through all rows of the table, inserting index
  ** records into the sorter. */
  sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
  addr1 = sqlite3VdbeAddOp2(v, OP_Rewind, iTab, 0);

  regRecord = sqlite3GetTempReg(pParse);
  regIdxKey = sqlite3GenerateIndexKey(pParse, pIndex, iTab, regRecord, 1);

  if( bUseSorter ){

    sqlite3VdbeAddOp2(v, OP_IdxInsert, iSorter, regRecord);
    sqlite3VdbeAddOp2(v, OP_Next, iTab, addr1+1);
    sqlite3VdbeJumpHere(v, addr1);
    addr1 = sqlite3VdbeAddOp2(v, OP_Sort, iSorter, 0);


    sqlite3VdbeAddOp2(v, OP_RowKey, iSorter, regRecord);





  }






  if( pIndex->onError!=OE_None ){
    const int regRowid = regIdxKey + pIndex->nColumn;
    const int j2 = sqlite3VdbeCurrentAddr(v) + 2;
    void * const pRegKey = SQLITE_INT_TO_PTR(regIdxKey);

    /* The registers accessed by the OP_IsUnique opcode were allocated
    ** using sqlite3GetTempRange() inside of the sqlite3GenerateIndexKey()
    ** call above. Just before that function was freed they were released
    ** (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, OE_Abort, "indexed columns are not unique", P4_STATIC);
  }
  sqlite3VdbeAddOp3(v, OP_IdxInsert, iIdx, regRecord, bUseSorter);
  sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);

  sqlite3ReleaseTempReg(pParse, regRecord);
  sqlite3VdbeAddOp2(v, OP_Next, iSorter, addr1+1);
  sqlite3VdbeJumpHere(v, addr1);

  sqlite3VdbeAddOp1(v, OP_Close, iTab);
  sqlite3VdbeAddOp1(v, OP_Close, iIdx);
  sqlite3VdbeAddOp1(v, OP_Close, iSorter);
}








>

<
|
|
|
<





>



<
>
|
|
|
|
>
>
|
>
>
>
>
>
|
>
|
>
>
>
>


















|

>

|







81491
81492
81493
81494
81495
81496
81497
81498
81499

81500
81501
81502

81503
81504
81505
81506
81507
81508
81509
81510
81511

81512
81513
81514
81515
81516
81517
81518
81519
81520
81521
81522
81523
81524
81525
81526
81527
81528
81529
81530
81531
81532
81533
81534
81535
81536
81537
81538
81539
81540
81541
81542
81543
81544
81545
81546
81547
81548
81549
81550
81551
81552
81553
81554
81555
81556
81557
81558
81559
81560
81561
  pKey = sqlite3IndexKeyinfo(pParse, pIndex);
  sqlite3VdbeAddOp4(v, OP_OpenWrite, iIdx, tnum, iDb, 
                    (char *)pKey, P4_KEYINFO_HANDOFF);
  if( memRootPage>=0 ){
    sqlite3VdbeChangeP5(v, 1);
  }

#ifndef SQLITE_OMIT_MERGE_SORT
  /* Open the sorter cursor if we are to use one. */

  iSorter = pParse->nTab++;
  sqlite3VdbeAddOp4(v, OP_SorterOpen, iSorter, 0, 0, (char*)pKey, P4_KEYINFO);
#endif


  /* Open the table. Loop through all rows of the table, inserting index
  ** records into the sorter. */
  sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
  addr1 = sqlite3VdbeAddOp2(v, OP_Rewind, iTab, 0);
  addr2 = addr1 + 1;
  regRecord = sqlite3GetTempReg(pParse);
  regIdxKey = sqlite3GenerateIndexKey(pParse, pIndex, iTab, regRecord, 1);


#ifndef SQLITE_OMIT_MERGE_SORT
  sqlite3VdbeAddOp2(v, OP_SorterInsert, iSorter, regRecord);
  sqlite3VdbeAddOp2(v, OP_Next, iTab, addr1+1);
  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, 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);
#else
  if( pIndex->onError!=OE_None ){
    const int regRowid = regIdxKey + pIndex->nColumn;
    const int j2 = sqlite3VdbeCurrentAddr(v) + 2;
    void * const pRegKey = SQLITE_INT_TO_PTR(regIdxKey);

    /* The registers accessed by the OP_IsUnique opcode were allocated
    ** using sqlite3GetTempRange() inside of the sqlite3GenerateIndexKey()
    ** call above. Just before that function was freed they were released
    ** (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, OE_Abort, "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);

  sqlite3VdbeAddOp1(v, OP_Close, iTab);
  sqlite3VdbeAddOp1(v, OP_Close, iIdx);
  sqlite3VdbeAddOp1(v, OP_Close, iSorter);
}

92210
92211
92212
92213
92214
92215
92216


92217
92218
92219
92220
92221
92222
92223
  pNew->addrOpenEphm[0] = -1;
  pNew->addrOpenEphm[1] = -1;
  pNew->addrOpenEphm[2] = -1;
  if( db->mallocFailed ) {
    clearSelect(db, pNew);
    if( pNew!=&standin ) sqlite3DbFree(db, pNew);
    pNew = 0;


  }
  return pNew;
}

/*
** Delete the given Select structure and all of its substructures.
*/







>
>







92431
92432
92433
92434
92435
92436
92437
92438
92439
92440
92441
92442
92443
92444
92445
92446
  pNew->addrOpenEphm[0] = -1;
  pNew->addrOpenEphm[1] = -1;
  pNew->addrOpenEphm[2] = -1;
  if( db->mallocFailed ) {
    clearSelect(db, pNew);
    if( pNew!=&standin ) sqlite3DbFree(db, pNew);
    pNew = 0;
  }else{
    assert( pNew->pSrc!=0 || pParse->nErr>0 );
  }
  return pNew;
}

/*
** Delete the given Select structure and all of its substructures.
*/
92540
92541
92542
92543
92544
92545
92546

92547
92548
92549
92550
92551





92552
92553
92554
92555
92556
92557
92558
92559
  Select *pSelect,       /* The whole SELECT statement */
  int regData            /* Register holding data to be sorted */
){
  Vdbe *v = pParse->pVdbe;
  int nExpr = pOrderBy->nExpr;
  int regBase = sqlite3GetTempRange(pParse, nExpr+2);
  int regRecord = sqlite3GetTempReg(pParse);

  sqlite3ExprCacheClear(pParse);
  sqlite3ExprCodeExprList(pParse, pOrderBy, regBase, 0);
  sqlite3VdbeAddOp2(v, OP_Sequence, pOrderBy->iECursor, regBase+nExpr);
  sqlite3ExprCodeMove(pParse, regData, regBase+nExpr+1, 1);
  sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nExpr + 2, regRecord);





  sqlite3VdbeAddOp2(v, OP_IdxInsert, pOrderBy->iECursor, regRecord);
  sqlite3ReleaseTempReg(pParse, regRecord);
  sqlite3ReleaseTempRange(pParse, regBase, nExpr+2);
  if( pSelect->iLimit ){
    int addr1, addr2;
    int iLimit;
    if( pSelect->iOffset ){
      iLimit = pSelect->iOffset+1;







>





>
>
>
>
>
|







92763
92764
92765
92766
92767
92768
92769
92770
92771
92772
92773
92774
92775
92776
92777
92778
92779
92780
92781
92782
92783
92784
92785
92786
92787
92788
  Select *pSelect,       /* The whole SELECT statement */
  int regData            /* Register holding data to be sorted */
){
  Vdbe *v = pParse->pVdbe;
  int nExpr = pOrderBy->nExpr;
  int regBase = sqlite3GetTempRange(pParse, nExpr+2);
  int regRecord = sqlite3GetTempReg(pParse);
  int op;
  sqlite3ExprCacheClear(pParse);
  sqlite3ExprCodeExprList(pParse, pOrderBy, regBase, 0);
  sqlite3VdbeAddOp2(v, OP_Sequence, pOrderBy->iECursor, regBase+nExpr);
  sqlite3ExprCodeMove(pParse, regData, regBase+nExpr+1, 1);
  sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nExpr + 2, regRecord);
  if( pSelect->selFlags & SF_UseSorter ){
    op = OP_SorterInsert;
  }else{
    op = OP_IdxInsert;
  }
  sqlite3VdbeAddOp2(v, op, pOrderBy->iECursor, regRecord);
  sqlite3ReleaseTempReg(pParse, regRecord);
  sqlite3ReleaseTempRange(pParse, regBase, nExpr+2);
  if( pSelect->iLimit ){
    int addr1, addr2;
    int iLimit;
    if( pSelect->iOffset ){
      iLimit = pSelect->iOffset+1;
93014
93015
93016
93017
93018
93019
93020










93021
93022
93023

93024
93025
93026
93027
93028
93029
93030
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    pseudoTab = pParse->nTab++;
    sqlite3VdbeAddOp3(v, OP_OpenPseudo, pseudoTab, regRow, nColumn);
    regRowid = 0;
  }else{
    regRowid = sqlite3GetTempReg(pParse);
  }










  addr = 1 + sqlite3VdbeAddOp2(v, OP_Sort, iTab, addrBreak);
  codeOffset(v, p, addrContinue);
  sqlite3VdbeAddOp3(v, OP_Column, iTab, pOrderBy->nExpr + 1, regRow);

  switch( eDest ){
    case SRT_Table:
    case SRT_EphemTab: {
      testcase( eDest==SRT_Table );
      testcase( eDest==SRT_EphemTab );
      sqlite3VdbeAddOp2(v, OP_NewRowid, iParm, regRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, iParm, regRow, regRowid);







>
>
>
>
>
>
>
>
>
>
|
|
|
>







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
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    pseudoTab = pParse->nTab++;
    sqlite3VdbeAddOp3(v, OP_OpenPseudo, pseudoTab, regRow, nColumn);
    regRowid = 0;
  }else{
    regRowid = sqlite3GetTempReg(pParse);
  }
  if( p->selFlags & SF_UseSorter ){
    int regSortOut = ++pParse->nMem;
    int ptab2 = pParse->nTab++;
    sqlite3VdbeAddOp3(v, OP_OpenPseudo, ptab2, regSortOut, pOrderBy->nExpr+2);
    addr = 1 + sqlite3VdbeAddOp2(v, OP_SorterSort, iTab, addrBreak);
    codeOffset(v, p, addrContinue);
    sqlite3VdbeAddOp2(v, OP_SorterData, iTab, regSortOut);
    sqlite3VdbeAddOp3(v, OP_Column, ptab2, pOrderBy->nExpr+1, regRow);
    sqlite3VdbeChangeP5(v, OPFLAG_CLEARCACHE);
  }else{
    addr = 1 + sqlite3VdbeAddOp2(v, OP_Sort, iTab, addrBreak);
    codeOffset(v, p, addrContinue);
    sqlite3VdbeAddOp3(v, OP_Column, iTab, pOrderBy->nExpr+1, regRow);
  }
  switch( eDest ){
    case SRT_Table:
    case SRT_EphemTab: {
      testcase( eDest==SRT_Table );
      testcase( eDest==SRT_EphemTab );
      sqlite3VdbeAddOp2(v, OP_NewRowid, iParm, regRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, iParm, regRow, regRowid);
93069
93070
93071
93072
93073
93074
93075



93076

93077
93078
93079
93080
93081
93082
93083
  }
  sqlite3ReleaseTempReg(pParse, regRow);
  sqlite3ReleaseTempReg(pParse, regRowid);

  /* The bottom of the loop
  */
  sqlite3VdbeResolveLabel(v, addrContinue);



  sqlite3VdbeAddOp2(v, OP_Next, iTab, addr);

  sqlite3VdbeResolveLabel(v, addrBreak);
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    sqlite3VdbeAddOp2(v, OP_Close, pseudoTab, 0);
  }
}

/*







>
>
>
|
>







93309
93310
93311
93312
93313
93314
93315
93316
93317
93318
93319
93320
93321
93322
93323
93324
93325
93326
93327
  }
  sqlite3ReleaseTempReg(pParse, regRow);
  sqlite3ReleaseTempReg(pParse, regRowid);

  /* The bottom of the loop
  */
  sqlite3VdbeResolveLabel(v, addrContinue);
  if( p->selFlags & SF_UseSorter ){
    sqlite3VdbeAddOp2(v, OP_SorterNext, iTab, addr);
  }else{
    sqlite3VdbeAddOp2(v, OP_Next, iTab, addr);
  }
  sqlite3VdbeResolveLabel(v, addrBreak);
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    sqlite3VdbeAddOp2(v, OP_Close, pseudoTab, 0);
  }
}

/*
95901
95902
95903
95904
95905
95906
95907
95908




95909
95910
95911
95912
95913
95914
95915
95916
95917
95918
95919
95920
95921

95922
95923
95924
95925
95926
95927




















95928
95929
95930
95931
95932
95933





95934
95935
95936
95937
95938
95939
95940
#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
  for(i=0; !p->pPrior && i<pTabList->nSrc; i++){
    struct SrcList_item *pItem = &pTabList->a[i];
    SelectDest dest;
    Select *pSub = pItem->pSelect;
    int isAggSub;

    if( pSub==0 || pItem->isPopulated ) continue;





    /* Increment Parse.nHeight by the height of the largest expression
    ** tree refered to by this, the parent select. The child select
    ** may contain expression trees of at most
    ** (SQLITE_MAX_EXPR_DEPTH-Parse.nHeight) height. This is a bit
    ** more conservative than necessary, but much easier than enforcing
    ** an exact limit.
    */
    pParse->nHeight += sqlite3SelectExprHeight(p);

    /* Check to see if the subquery can be absorbed into the parent. */
    isAggSub = (pSub->selFlags & SF_Aggregate)!=0;
    if( flattenSubquery(pParse, p, i, isAgg, isAggSub) ){

      if( isAggSub ){
        isAgg = 1;
        p->selFlags |= SF_Aggregate;
      }
      i = -1;
    }else{




















      sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
      assert( pItem->isPopulated==0 );
      explainSetInteger(pItem->iSelectId, (u8)pParse->iNextSelectId);
      sqlite3Select(pParse, pSub, &dest);
      pItem->isPopulated = 1;
      pItem->pTab->nRowEst = (unsigned)pSub->nSelectRow;





    }
    if( /*pParse->nErr ||*/ db->mallocFailed ){
      goto select_end;
    }
    pParse->nHeight -= sqlite3SelectExprHeight(p);
    pTabList = p->pSrc;
    if( !IgnorableOrderby(pDest) ){







|
>
>
>
>










<


>






>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>

<


<

>
>
>
>
>







96145
96146
96147
96148
96149
96150
96151
96152
96153
96154
96155
96156
96157
96158
96159
96160
96161
96162
96163
96164
96165
96166

96167
96168
96169
96170
96171
96172
96173
96174
96175
96176
96177
96178
96179
96180
96181
96182
96183
96184
96185
96186
96187
96188
96189
96190
96191
96192
96193
96194
96195
96196

96197
96198

96199
96200
96201
96202
96203
96204
96205
96206
96207
96208
96209
96210
96211
#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
  for(i=0; !p->pPrior && i<pTabList->nSrc; i++){
    struct SrcList_item *pItem = &pTabList->a[i];
    SelectDest dest;
    Select *pSub = pItem->pSelect;
    int isAggSub;

    if( pSub==0 ) continue;
    if( pItem->addrFillSub ){
      sqlite3VdbeAddOp2(v, OP_Gosub, pItem->regReturn, pItem->addrFillSub);
      continue;
    }

    /* Increment Parse.nHeight by the height of the largest expression
    ** tree refered to by this, the parent select. The child select
    ** may contain expression trees of at most
    ** (SQLITE_MAX_EXPR_DEPTH-Parse.nHeight) height. This is a bit
    ** more conservative than necessary, but much easier than enforcing
    ** an exact limit.
    */
    pParse->nHeight += sqlite3SelectExprHeight(p);


    isAggSub = (pSub->selFlags & SF_Aggregate)!=0;
    if( flattenSubquery(pParse, p, i, isAgg, isAggSub) ){
      /* This subquery can be absorbed into its parent. */
      if( isAggSub ){
        isAgg = 1;
        p->selFlags |= SF_Aggregate;
      }
      i = -1;
    }else{
      /* Generate a subroutine that will fill an ephemeral table with
      ** the content of this subquery.  pItem->addrFillSub will point
      ** to the address of the generated subroutine.  pItem->regReturn
      ** is a register allocated to hold the subroutine return address
      */
      int topAddr;
      int onceAddr = 0;
      int retAddr;
      assert( pItem->addrFillSub==0 );
      pItem->regReturn = ++pParse->nMem;
      topAddr = sqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn);
      pItem->addrFillSub = topAddr+1;
      VdbeNoopComment((v, "materialize %s", pItem->pTab->zName));
      if( pItem->isCorrelated==0 && pParse->pTriggerTab==0 ){
        /* If the subquery is no correlated and if we are not inside of
        ** a trigger, then we only need to compute the value of the subquery
        ** once. */
        int regOnce = ++pParse->nMem;
        onceAddr = sqlite3VdbeAddOp1(v, OP_Once, regOnce);
      }
      sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);

      explainSetInteger(pItem->iSelectId, (u8)pParse->iNextSelectId);
      sqlite3Select(pParse, pSub, &dest);

      pItem->pTab->nRowEst = (unsigned)pSub->nSelectRow;
      if( onceAddr ) sqlite3VdbeJumpHere(v, onceAddr);
      retAddr = sqlite3VdbeAddOp1(v, OP_Return, pItem->regReturn);
      VdbeComment((v, "end %s", pItem->pTab->zName));
      sqlite3VdbeChangeP1(v, topAddr, retAddr);

    }
    if( /*pParse->nErr ||*/ db->mallocFailed ){
      goto select_end;
    }
    pParse->nHeight -= sqlite3SelectExprHeight(p);
    pTabList = p->pSrc;
    if( !IgnorableOrderby(pDest) ){
96035
96036
96037
96038
96039
96040
96041




96042
96043
96044
96045
96046
96047
96048
  }

  /* Set the limiter.
  */
  iEnd = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = (double)LARGEST_INT64;
  computeLimitRegisters(pParse, p, iEnd);





  /* Open a virtual index to use for the distinct set.
  */
  if( p->selFlags & SF_Distinct ){
    KeyInfo *pKeyInfo;
    distinct = pParse->nTab++;
    pKeyInfo = keyInfoFromExprList(pParse, p->pEList);







>
>
>
>







96306
96307
96308
96309
96310
96311
96312
96313
96314
96315
96316
96317
96318
96319
96320
96321
96322
96323
  }

  /* Set the limiter.
  */
  iEnd = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = (double)LARGEST_INT64;
  computeLimitRegisters(pParse, p, iEnd);
  if( p->iLimit==0 && addrSortIndex>=0 ){
    sqlite3VdbeGetOp(v, addrSortIndex)->opcode = OP_SorterOpen;
    p->selFlags |= SF_UseSorter;
  }

  /* Open a virtual index to use for the distinct set.
  */
  if( p->selFlags & SF_Distinct ){
    KeyInfo *pKeyInfo;
    distinct = pParse->nTab++;
    pKeyInfo = keyInfoFromExprList(pParse, p->pEList);
96063
96064
96065
96066
96067
96068
96069
96070
96071
96072
96073
96074
96075
96076
96077
    if( pWInfo->nRowOut < p->nSelectRow ) p->nSelectRow = pWInfo->nRowOut;

    /* If sorting index that was created by a prior OP_OpenEphemeral 
    ** instruction ended up not being needed, then change the OP_OpenEphemeral
    ** into an OP_Noop.
    */
    if( addrSortIndex>=0 && pOrderBy==0 ){
      sqlite3VdbeChangeToNoop(v, addrSortIndex, 1);
      p->addrOpenEphm[2] = -1;
    }

    if( pWInfo->eDistinct ){
      VdbeOp *pOp;                /* No longer required OpenEphemeral instr. */
     
      assert( addrDistinctIndex>=0 );







|







96338
96339
96340
96341
96342
96343
96344
96345
96346
96347
96348
96349
96350
96351
96352
    if( pWInfo->nRowOut < p->nSelectRow ) p->nSelectRow = pWInfo->nRowOut;

    /* If sorting index that was created by a prior OP_OpenEphemeral 
    ** instruction ended up not being needed, then change the OP_OpenEphemeral
    ** into an OP_Noop.
    */
    if( addrSortIndex>=0 && pOrderBy==0 ){
      sqlite3VdbeChangeToNoop(v, addrSortIndex);
      p->addrOpenEphm[2] = -1;
    }

    if( pWInfo->eDistinct ){
      VdbeOp *pOp;                /* No longer required OpenEphemeral instr. */
     
      assert( addrDistinctIndex>=0 );
96129
96130
96131
96132
96133
96134
96135


96136
96137
96138
96139
96140
96141
96142
    int iBMem;          /* First Mem address for previous GROUP BY */
    int iUseFlag;       /* Mem address holding flag indicating that at least
                        ** one row of the input to the aggregator has been
                        ** processed */
    int iAbortFlag;     /* Mem address which causes query abort if positive */
    int groupBySort;    /* Rows come from source in GROUP BY order */
    int addrEnd;        /* End of processing for this SELECT */



    /* Remove any and all aliases between the result set and the
    ** GROUP BY clause.
    */
    if( pGroupBy ){
      int k;                        /* Loop counter */
      struct ExprList_item *pItem;  /* For looping over expression in a list */







>
>







96404
96405
96406
96407
96408
96409
96410
96411
96412
96413
96414
96415
96416
96417
96418
96419
    int iBMem;          /* First Mem address for previous GROUP BY */
    int iUseFlag;       /* Mem address holding flag indicating that at least
                        ** one row of the input to the aggregator has been
                        ** processed */
    int iAbortFlag;     /* Mem address which causes query abort if positive */
    int groupBySort;    /* Rows come from source in GROUP BY order */
    int addrEnd;        /* End of processing for this SELECT */
    int sortPTab = 0;   /* Pseudotable used to decode sorting results */
    int sortOut = 0;    /* Output register from the sorter */

    /* Remove any and all aliases between the result set and the
    ** GROUP BY clause.
    */
    if( pGroupBy ){
      int k;                        /* Loop counter */
      struct ExprList_item *pItem;  /* For looping over expression in a list */
96190
96191
96192
96193
96194
96195
96196
96197
96198
96199
96200
96201
96202
96203
96204
96205
96206
96207
96208
96209
      int addrTopOfLoop;  /* Top of the input loop */
      int addrSortingIdx; /* The OP_OpenEphemeral for the sorting index */
      int addrReset;      /* Subroutine for resetting the accumulator */
      int regReset;       /* Return address register for reset subroutine */

      /* If there is a GROUP BY clause we might need a sorting index to
      ** implement it.  Allocate that sorting index now.  If it turns out
      ** that we do not need it after all, the OpenEphemeral instruction
      ** will be converted into a Noop.  
      */
      sAggInfo.sortingIdx = pParse->nTab++;
      pKeyInfo = keyInfoFromExprList(pParse, pGroupBy);
      addrSortingIdx = sqlite3VdbeAddOp4(v, OP_OpenEphemeral, 
          sAggInfo.sortingIdx, sAggInfo.nSortingColumn, 
          0, (char*)pKeyInfo, P4_KEYINFO_HANDOFF);

      /* Initialize memory locations used by GROUP BY aggregate processing
      */
      iUseFlag = ++pParse->nMem;
      iAbortFlag = ++pParse->nMem;







|




|







96467
96468
96469
96470
96471
96472
96473
96474
96475
96476
96477
96478
96479
96480
96481
96482
96483
96484
96485
96486
      int addrTopOfLoop;  /* Top of the input loop */
      int addrSortingIdx; /* The OP_OpenEphemeral for the sorting index */
      int addrReset;      /* Subroutine for resetting the accumulator */
      int regReset;       /* Return address register for reset subroutine */

      /* If there is a GROUP BY clause we might need a sorting index to
      ** implement it.  Allocate that sorting index now.  If it turns out
      ** that we do not need it after all, the OP_SorterOpen instruction
      ** will be converted into a Noop.  
      */
      sAggInfo.sortingIdx = pParse->nTab++;
      pKeyInfo = keyInfoFromExprList(pParse, pGroupBy);
      addrSortingIdx = sqlite3VdbeAddOp4(v, OP_SorterOpen, 
          sAggInfo.sortingIdx, sAggInfo.nSortingColumn, 
          0, (char*)pKeyInfo, P4_KEYINFO_HANDOFF);

      /* Initialize memory locations used by GROUP BY aggregate processing
      */
      iUseFlag = ++pParse->nMem;
      iAbortFlag = ++pParse->nMem;
96276
96277
96278
96279
96280
96281
96282
96283
96284
96285
96286



96287
96288
96289
96290
96291
96292
96293
96294
96295
96296
96297
96298
96299



96300
96301
96302

96303
96304
96305
96306
96307
96308
96309
              sqlite3VdbeAddOp2(v, OP_SCopy, r2, r1);
            }
            j++;
          }
        }
        regRecord = sqlite3GetTempReg(pParse);
        sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regRecord);
        sqlite3VdbeAddOp2(v, OP_IdxInsert, sAggInfo.sortingIdx, regRecord);
        sqlite3ReleaseTempReg(pParse, regRecord);
        sqlite3ReleaseTempRange(pParse, regBase, nCol);
        sqlite3WhereEnd(pWInfo);



        sqlite3VdbeAddOp2(v, OP_Sort, sAggInfo.sortingIdx, addrEnd);
        VdbeComment((v, "GROUP BY sort"));
        sAggInfo.useSortingIdx = 1;
        sqlite3ExprCacheClear(pParse);
      }

      /* Evaluate the current GROUP BY terms and store in b0, b1, b2...
      ** (b0 is memory location iBMem+0, b1 is iBMem+1, and so forth)
      ** Then compare the current GROUP BY terms against the GROUP BY terms
      ** from the previous row currently stored in a0, a1, a2...
      */
      addrTopOfLoop = sqlite3VdbeCurrentAddr(v);
      sqlite3ExprCacheClear(pParse);



      for(j=0; j<pGroupBy->nExpr; j++){
        if( groupBySort ){
          sqlite3VdbeAddOp3(v, OP_Column, sAggInfo.sortingIdx, j, iBMem+j);

        }else{
          sAggInfo.directMode = 1;
          sqlite3ExprCode(pParse, pGroupBy->a[j].pExpr, iBMem+j);
        }
      }
      sqlite3VdbeAddOp4(v, OP_Compare, iAMem, iBMem, pGroupBy->nExpr,
                          (char*)pKeyInfo, P4_KEYINFO);







|



>
>
>
|












>
>
>


|
>







96553
96554
96555
96556
96557
96558
96559
96560
96561
96562
96563
96564
96565
96566
96567
96568
96569
96570
96571
96572
96573
96574
96575
96576
96577
96578
96579
96580
96581
96582
96583
96584
96585
96586
96587
96588
96589
96590
96591
96592
96593
              sqlite3VdbeAddOp2(v, OP_SCopy, r2, r1);
            }
            j++;
          }
        }
        regRecord = sqlite3GetTempReg(pParse);
        sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regRecord);
        sqlite3VdbeAddOp2(v, OP_SorterInsert, sAggInfo.sortingIdx, regRecord);
        sqlite3ReleaseTempReg(pParse, regRecord);
        sqlite3ReleaseTempRange(pParse, regBase, nCol);
        sqlite3WhereEnd(pWInfo);
        sAggInfo.sortingIdxPTab = sortPTab = pParse->nTab++;
        sortOut = sqlite3GetTempReg(pParse);
        sqlite3VdbeAddOp3(v, OP_OpenPseudo, sortPTab, sortOut, nCol);
        sqlite3VdbeAddOp2(v, OP_SorterSort, sAggInfo.sortingIdx, addrEnd);
        VdbeComment((v, "GROUP BY sort"));
        sAggInfo.useSortingIdx = 1;
        sqlite3ExprCacheClear(pParse);
      }

      /* Evaluate the current GROUP BY terms and store in b0, b1, b2...
      ** (b0 is memory location iBMem+0, b1 is iBMem+1, and so forth)
      ** Then compare the current GROUP BY terms against the GROUP BY terms
      ** from the previous row currently stored in a0, a1, a2...
      */
      addrTopOfLoop = sqlite3VdbeCurrentAddr(v);
      sqlite3ExprCacheClear(pParse);
      if( groupBySort ){
        sqlite3VdbeAddOp2(v, OP_SorterData, sAggInfo.sortingIdx, sortOut);
      }
      for(j=0; j<pGroupBy->nExpr; j++){
        if( groupBySort ){
          sqlite3VdbeAddOp3(v, OP_Column, sortPTab, j, iBMem+j);
          if( j==0 ) sqlite3VdbeChangeP5(v, OPFLAG_CLEARCACHE);
        }else{
          sAggInfo.directMode = 1;
          sqlite3ExprCode(pParse, pGroupBy->a[j].pExpr, iBMem+j);
        }
      }
      sqlite3VdbeAddOp4(v, OP_Compare, iAMem, iBMem, pGroupBy->nExpr,
                          (char*)pKeyInfo, P4_KEYINFO);
96334
96335
96336
96337
96338
96339
96340
96341
96342
96343
96344
96345
96346
96347
96348
96349
96350
96351
      updateAccumulator(pParse, &sAggInfo);
      sqlite3VdbeAddOp2(v, OP_Integer, 1, iUseFlag);
      VdbeComment((v, "indicate data in accumulator"));

      /* End of the loop
      */
      if( groupBySort ){
        sqlite3VdbeAddOp2(v, OP_Next, sAggInfo.sortingIdx, addrTopOfLoop);
      }else{
        sqlite3WhereEnd(pWInfo);
        sqlite3VdbeChangeToNoop(v, addrSortingIdx, 1);
      }

      /* Output the final row of result
      */
      sqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
      VdbeComment((v, "output final row"));








|


|







96618
96619
96620
96621
96622
96623
96624
96625
96626
96627
96628
96629
96630
96631
96632
96633
96634
96635
      updateAccumulator(pParse, &sAggInfo);
      sqlite3VdbeAddOp2(v, OP_Integer, 1, iUseFlag);
      VdbeComment((v, "indicate data in accumulator"));

      /* End of the loop
      */
      if( groupBySort ){
        sqlite3VdbeAddOp2(v, OP_SorterNext, sAggInfo.sortingIdx, addrTopOfLoop);
      }else{
        sqlite3WhereEnd(pWInfo);
        sqlite3VdbeChangeToNoop(v, addrSortingIdx);
      }

      /* Output the final row of result
      */
      sqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
      VdbeComment((v, "output final row"));

100523
100524
100525
100526
100527
100528
100529

100530
100531
100532
100533
100534







100535
100536
100537
100538
100539
100540
100541
    }
  }
  return mask;
}
static Bitmask exprSelectTableUsage(WhereMaskSet *pMaskSet, Select *pS){
  Bitmask mask = 0;
  while( pS ){

    mask |= exprListTableUsage(pMaskSet, pS->pEList);
    mask |= exprListTableUsage(pMaskSet, pS->pGroupBy);
    mask |= exprListTableUsage(pMaskSet, pS->pOrderBy);
    mask |= exprTableUsage(pMaskSet, pS->pWhere);
    mask |= exprTableUsage(pMaskSet, pS->pHaving);







    pS = pS->pPrior;
  }
  return mask;
}

/*
** Return TRUE if the given operator is one of the operators that is







>





>
>
>
>
>
>
>







100807
100808
100809
100810
100811
100812
100813
100814
100815
100816
100817
100818
100819
100820
100821
100822
100823
100824
100825
100826
100827
100828
100829
100830
100831
100832
100833
    }
  }
  return mask;
}
static Bitmask exprSelectTableUsage(WhereMaskSet *pMaskSet, Select *pS){
  Bitmask mask = 0;
  while( pS ){
    SrcList *pSrc = pS->pSrc;
    mask |= exprListTableUsage(pMaskSet, pS->pEList);
    mask |= exprListTableUsage(pMaskSet, pS->pGroupBy);
    mask |= exprListTableUsage(pMaskSet, pS->pOrderBy);
    mask |= exprTableUsage(pMaskSet, pS->pWhere);
    mask |= exprTableUsage(pMaskSet, pS->pHaving);
    if( ALWAYS(pSrc!=0) ){
      int i;
      for(i=0; i<pSrc->nSrc; i++){
        mask |= exprSelectTableUsage(pMaskSet, pSrc->a[i].pSelect);
        mask |= exprTableUsage(pMaskSet, pSrc->a[i].pOn);
      }
    }
    pS = pS->pPrior;
  }
  return mask;
}

/*
** Return TRUE if the given operator is one of the operators that is
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102064
102065
  Bitmask extraCols;          /* Bitmap of additional columns */

  /* Generate code to skip over the creation and initialization of the
  ** transient index on 2nd and subsequent iterations of the loop. */
  v = pParse->pVdbe;
  assert( v!=0 );
  regIsInit = ++pParse->nMem;
  addrInit = sqlite3VdbeAddOp1(v, OP_If, regIsInit);
  sqlite3VdbeAddOp2(v, OP_Integer, 1, regIsInit);

  /* Count the number of columns that will be added to the index
  ** and used to match WHERE clause constraints */
  nColumn = 0;
  pTable = pSrc->pTab;
  pWCEnd = &pWC->a[pWC->nTerm];
  idxCols = 0;







|
<







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102348
102349

102350
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  Bitmask extraCols;          /* Bitmap of additional columns */

  /* Generate code to skip over the creation and initialization of the
  ** transient index on 2nd and subsequent iterations of the loop. */
  v = pParse->pVdbe;
  assert( v!=0 );
  regIsInit = ++pParse->nMem;
  addrInit = sqlite3VdbeAddOp1(v, OP_Once, regIsInit);


  /* Count the number of columns that will be added to the index
  ** and used to match WHERE clause constraints */
  nColumn = 0;
  pTable = pSrc->pTab;
  pWCEnd = &pWC->a[pWC->nTerm];
  idxCols = 0;
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115989
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115991
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115993






























115994
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116000
116001
  char *p2 = a2;
  char *p;
  char *aOut;
  int bFirstOut = 0;

  *paOut = 0;
  *pnOut = 0;






























  aOut = sqlite3_malloc(n1+n2);
  if( !aOut ) return SQLITE_NOMEM;

  p = aOut;
  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
  while( p1 || p2 ){
    sqlite3_int64 iDiff = DOCID_CMP(i1, i2);







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116278
116279
116280
116281
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116287
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116322
  char *p2 = a2;
  char *p;
  char *aOut;
  int bFirstOut = 0;

  *paOut = 0;
  *pnOut = 0;

  /* Allocate space for the output. Both the input and output doclists
  ** are delta encoded. If they are in ascending order (bDescDoclist==0),
  ** then the first docid in each list is simply encoded as a varint. For
  ** each subsequent docid, the varint stored is the difference between the
  ** current and previous docid (a positive number - since the list is in
  ** ascending order).
  **
  ** The first docid written to the output is therefore encoded using the 
  ** same number of bytes as it is in whichever of the input lists it is
  ** read from. And each subsequent docid read from the same input list 
  ** consumes either the same or less bytes as it did in the input (since
  ** the difference between it and the previous value in the output must
  ** be a positive value less than or equal to the delta value read from 
  ** the input list). The same argument applies to all but the first docid
  ** read from the 'other' list. And to the contents of all position lists
  ** that will be copied and merged from the input to the output.
  **
  ** However, if the first docid copied to the output is a negative number,
  ** then the encoding of the first docid from the 'other' input list may
  ** be larger in the output than it was in the input (since the delta value
  ** may be a larger positive integer than the actual docid).
  **
  ** The space required to store the output is therefore the sum of the
  ** sizes of the two inputs, plus enough space for exactly one of the input
  ** docids to grow. 
  **
  ** A symetric argument may be made if the doclists are in descending 
  ** order.
  */
  aOut = sqlite3_malloc(n1+n2+FTS3_VARINT_MAX-1);
  if( !aOut ) return SQLITE_NOMEM;

  p = aOut;
  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
  while( p1 || p2 ){
    sqlite3_int64 iDiff = DOCID_CMP(i1, i2);
116014
116015
116016
116017
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116019
116020

116021
116022
116023
116024
116025
116026
116027
      fts3PoslistCopy(&p, &p2);
      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
    }
  }

  *paOut = aOut;
  *pnOut = (p-aOut);

  return SQLITE_OK;
}

/*
** This function does a "phrase" merge of two doclists. In a phrase merge,
** the output contains a copy of each position from the right-hand input
** doclist for which there is a position in the left-hand input doclist







>







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116340
116341
116342
116343
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116347
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116349
      fts3PoslistCopy(&p, &p2);
      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
    }
  }

  *paOut = aOut;
  *pnOut = (p-aOut);
  assert( *pnOut<=n1+n2+FTS3_VARINT_MAX-1 );
  return SQLITE_OK;
}

/*
** This function does a "phrase" merge of two doclists. In a phrase merge,
** the output contains a copy of each position from the right-hand input
** doclist for which there is a position in the left-hand input doclist
Changes to SQLite.Interop/src/core/sqlite3.h.
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**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.8"
#define SQLITE_VERSION_NUMBER 3007008
#define SQLITE_SOURCE_ID      "2011-08-31 23:57:22 2869ed28299b1c9f355ecc24635830f7f1249126"

/*
** 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







|







105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.8"
#define SQLITE_VERSION_NUMBER 3007008
#define SQLITE_SOURCE_ID      "2011-09-17 15:34:50 29c4d0dd43d41650e54824afd70dd40f1b91cc86"

/*
** 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
Changes to System.Data.SQLite/SQLiteConnection.cs.
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673
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      get
      {
        return _dataSource;
      }
    }

    /// <summary>
    /// Returns an empty string
    /// </summary>
#if !PLATFORM_COMPACTFRAMEWORK
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
#endif
    public override string Database
    {
      get







|







661
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664
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667
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669
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673
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      get
      {
        return _dataSource;
      }
    }

    /// <summary>
    /// Returns the string "main".
    /// </summary>
#if !PLATFORM_COMPACTFRAMEWORK
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
#endif
    public override string Database
    {
      get
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969


















970
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976
        return SQLiteVersion;
        //if (_connectionState != ConnectionState.Open)
        //  throw new InvalidOperationException();

        //return _sql.Version;
      }
    }



















    /// <summary>
    /// Returns the version of the underlying SQLite database engine
    /// </summary>
    public static string SQLiteVersion
    {
      get { return SQLite3.SQLiteVersion; }







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>







963
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        return SQLiteVersion;
        //if (_connectionState != ConnectionState.Open)
        //  throw new InvalidOperationException();

        //return _sql.Version;
      }
    }

    /// <summary>
    /// Returns the number of rows changed by the last INSERT, UPDATE, or DELETE statement executed on
    /// this connection.
    /// </summary>
#if !PLATFORM_COMPACTFRAMEWORK
    [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
#endif
    public int Changes
    {
      get
      {
        if (_sql == null)
          throw new InvalidOperationException("Database connection not valid for getting number of changes.");

        return _sql.Changes;
      }
    }

    /// <summary>
    /// Returns the version of the underlying SQLite database engine
    /// </summary>
    public static string SQLiteVersion
    {
      get { return SQLite3.SQLiteVersion; }