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Overview
Comment: | Faster and smaller implementation of sqlite3_value_type(). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
5708bc24b8cab623b833121183042b43 |
User & Date: | drh 2014-02-10 03:21:57.367 |
Context
2014-02-10
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12:59 | Faster implementation for sqlite3MulInt64(). (check-in: 010c48f671 user: drh tags: trunk) | |
03:21 | Faster and smaller implementation of sqlite3_value_type(). (check-in: 5708bc24b8 user: drh tags: trunk) | |
2014-02-09
| ||
23:59 | Add a compound-query test to the speedtest1 test program. (check-in: 5329957591 user: drh tags: trunk) | |
Changes
Changes to src/test5.c.
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72 73 74 75 76 77 78 | } if( Tcl_GetIntFromObj(interp, objv[1], &repeat_count) ) return TCL_ERROR; if( Tcl_GetIntFromObj(interp, objv[2], &do_calls) ) return TCL_ERROR; val.flags = MEM_Str|MEM_Term|MEM_Static; val.z = "hello world"; | | | 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | } if( Tcl_GetIntFromObj(interp, objv[1], &repeat_count) ) return TCL_ERROR; if( Tcl_GetIntFromObj(interp, objv[2], &do_calls) ) return TCL_ERROR; val.flags = MEM_Str|MEM_Term|MEM_Static; val.z = "hello world"; val.memType = MEM_Str; val.enc = SQLITE_UTF8; for(i=0; i<repeat_count; i++){ if( do_calls ){ sqlite3_value_text(&val); } } |
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Changes to src/vdbe.c.
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129 130 131 132 133 134 135 | #define Deephemeralize(P) \ if( ((P)->flags&MEM_Ephem)!=0 \ && sqlite3VdbeMemMakeWriteable(P) ){ goto no_mem;} /* Return true if the cursor was opened using the OP_OpenSorter opcode. */ #define isSorter(x) ((x)->pSorter!=0) | < < < < < < < < < < < < < < < < < < < < < < < < | 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | #define Deephemeralize(P) \ if( ((P)->flags&MEM_Ephem)!=0 \ && sqlite3VdbeMemMakeWriteable(P) ){ goto no_mem;} /* Return true if the cursor was opened using the OP_OpenSorter opcode. */ #define isSorter(x) ((x)->pSorter!=0) /* ** Allocate VdbeCursor number iCur. Return a pointer to it. Return NULL ** if we run out of memory. */ static VdbeCursor *allocateCursor( Vdbe *p, /* The virtual machine */ int iCur, /* Index of the new VdbeCursor */ |
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281 282 283 284 285 286 287 | /* ** Try to convert the type of a function argument or a result column ** into a numeric representation. Use either INTEGER or REAL whichever ** is appropriate. But only do the conversion if it is possible without ** loss of information and return the revised type of the argument. */ int sqlite3_value_numeric_type(sqlite3_value *pVal){ | > > | < > | | 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 | /* ** Try to convert the type of a function argument or a result column ** into a numeric representation. Use either INTEGER or REAL whichever ** is appropriate. But only do the conversion if it is possible without ** loss of information and return the revised type of the argument. */ int sqlite3_value_numeric_type(sqlite3_value *pVal){ int eType = sqlite3_value_type(pVal); if( eType==SQLITE_TEXT ){ Mem *pMem = (Mem*)pVal; applyNumericAffinity(pMem); sqlite3VdbeMemStoreType(pMem); eType = sqlite3_value_type(pVal); } return eType; } /* ** Exported version of applyAffinity(). This one works on sqlite3_value*, ** not the internal Mem* type. */ void sqlite3ValueApplyAffinity( |
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Changes to src/vdbeInt.h.
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164 165 166 167 168 169 170 | int nZero; /* Used when bit MEM_Zero is set in flags */ FuncDef *pDef; /* Used only when flags==MEM_Agg */ RowSet *pRowSet; /* Used only when flags==MEM_RowSet */ VdbeFrame *pFrame; /* Used when flags==MEM_Frame */ } u; int n; /* Number of characters in string value, excluding '\0' */ u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ | | | 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | int nZero; /* Used when bit MEM_Zero is set in flags */ FuncDef *pDef; /* Used only when flags==MEM_Agg */ RowSet *pRowSet; /* Used only when flags==MEM_RowSet */ VdbeFrame *pFrame; /* Used when flags==MEM_Frame */ } u; int n; /* Number of characters in string value, excluding '\0' */ u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ u8 memType; /* Lower 5 bits of flags */ u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */ #ifdef SQLITE_DEBUG Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */ void *pFiller; /* So that sizeof(Mem) is a multiple of 8 */ #endif void (*xDel)(void *); /* If not null, call this function to delete Mem.z */ char *zMalloc; /* Dynamic buffer allocated by sqlite3_malloc() */ |
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430 431 432 433 434 435 436 | if( VdbeMemDynamic(X) ) sqlite3VdbeMemReleaseExternal(X); int sqlite3VdbeMemFinalize(Mem*, FuncDef*); const char *sqlite3OpcodeName(int); int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve); int sqlite3VdbeCloseStatement(Vdbe *, int); void sqlite3VdbeFrameDelete(VdbeFrame*); int sqlite3VdbeFrameRestore(VdbeFrame *); | > | | 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 | if( VdbeMemDynamic(X) ) sqlite3VdbeMemReleaseExternal(X); int sqlite3VdbeMemFinalize(Mem*, FuncDef*); const char *sqlite3OpcodeName(int); int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve); int sqlite3VdbeCloseStatement(Vdbe *, int); void sqlite3VdbeFrameDelete(VdbeFrame*); int sqlite3VdbeFrameRestore(VdbeFrame *); #define sqlite3VdbeMemStoreType(X) (X)->memType = (u8)((X)->flags&0x1f) /* void sqlite3VdbeMemStoreType(Mem *pMem); */ int sqlite3VdbeTransferError(Vdbe *p); int sqlite3VdbeSorterInit(sqlite3 *, VdbeCursor *); void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *); int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *); int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *); int sqlite3VdbeSorterRewind(sqlite3 *, const VdbeCursor *, int *); |
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Changes to src/vdbeapi.c.
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168 169 170 171 172 173 174 | return sqlite3ValueText(pVal, SQLITE_UTF16BE); } const void *sqlite3_value_text16le(sqlite3_value *pVal){ return sqlite3ValueText(pVal, SQLITE_UTF16LE); } #endif /* SQLITE_OMIT_UTF16 */ int sqlite3_value_type(sqlite3_value* pVal){ | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | return sqlite3ValueText(pVal, SQLITE_UTF16BE); } const void *sqlite3_value_text16le(sqlite3_value *pVal){ return sqlite3ValueText(pVal, SQLITE_UTF16LE); } #endif /* SQLITE_OMIT_UTF16 */ int sqlite3_value_type(sqlite3_value* pVal){ static const u8 aType[] = { SQLITE_BLOB, /* 0x00 */ SQLITE_NULL, /* 0x01 */ SQLITE_TEXT, /* 0x02 */ SQLITE_NULL, /* 0x03 */ SQLITE_INTEGER, /* 0x04 */ SQLITE_NULL, /* 0x05 */ SQLITE_INTEGER, /* 0x06 */ SQLITE_NULL, /* 0x07 */ SQLITE_FLOAT, /* 0x08 */ SQLITE_NULL, /* 0x09 */ SQLITE_FLOAT, /* 0x0a */ SQLITE_NULL, /* 0x0b */ SQLITE_INTEGER, /* 0x0c */ SQLITE_NULL, /* 0x0d */ SQLITE_INTEGER, /* 0x0e */ SQLITE_NULL, /* 0x0f */ SQLITE_BLOB, /* 0x10 */ SQLITE_NULL, /* 0x11 */ SQLITE_TEXT, /* 0x12 */ SQLITE_NULL, /* 0x13 */ SQLITE_INTEGER, /* 0x14 */ SQLITE_NULL, /* 0x15 */ SQLITE_INTEGER, /* 0x16 */ SQLITE_NULL, /* 0x17 */ SQLITE_FLOAT, /* 0x18 */ SQLITE_NULL, /* 0x19 */ SQLITE_FLOAT, /* 0x1a */ SQLITE_NULL, /* 0x1b */ SQLITE_INTEGER, /* 0x1c */ SQLITE_NULL, /* 0x1d */ SQLITE_INTEGER, /* 0x1e */ SQLITE_NULL, /* 0x1f */ }; return aType[pVal->memType&0x1f]; } /**************************** sqlite3_result_ ******************************* ** The following routines are used by user-defined functions to specify ** the function result. ** ** The setStrOrError() funtion calls sqlite3VdbeMemSetStr() to store the |
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1127 1128 1129 1130 1131 1132 1133 | void (*xDel)(void*) ){ return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE); } #endif /* SQLITE_OMIT_UTF16 */ int sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_value *pValue){ int rc; | | | 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 | void (*xDel)(void*) ){ return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE); } #endif /* SQLITE_OMIT_UTF16 */ int sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_value *pValue){ int rc; switch( sqlite3_value_type((sqlite3_value*)pValue) ){ case SQLITE_INTEGER: { rc = sqlite3_bind_int64(pStmt, i, pValue->u.i); break; } case SQLITE_FLOAT: { rc = sqlite3_bind_double(pStmt, i, pValue->r); break; |
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Changes to src/vdbeaux.c.
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1341 1342 1343 1344 1345 1346 1347 | for(j=0; i>=apSub[j]->nOp; j++){ i -= apSub[j]->nOp; } pOp = &apSub[j]->aOp[i]; } if( p->explain==1 ){ pMem->flags = MEM_Int; | | | | 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 | for(j=0; i>=apSub[j]->nOp; j++){ i -= apSub[j]->nOp; } pOp = &apSub[j]->aOp[i]; } if( p->explain==1 ){ pMem->flags = MEM_Int; pMem->memType = MEM_Int; pMem->u.i = i; /* Program counter */ pMem++; pMem->flags = MEM_Static|MEM_Str|MEM_Term; pMem->z = (char*)sqlite3OpcodeName(pOp->opcode); /* Opcode */ assert( pMem->z!=0 ); pMem->n = sqlite3Strlen30(pMem->z); pMem->memType = MEM_Str; pMem->enc = SQLITE_UTF8; pMem++; /* When an OP_Program opcode is encounter (the only opcode that has ** a P4_SUBPROGRAM argument), expand the size of the array of subprograms ** kept in p->aMem[9].z to hold the new program - assuming this subprogram ** has not already been seen. |
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1375 1376 1377 1378 1379 1380 1381 | pSub->n = nSub*sizeof(SubProgram*); } } } pMem->flags = MEM_Int; pMem->u.i = pOp->p1; /* P1 */ | | | | | | | | | 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 | pSub->n = nSub*sizeof(SubProgram*); } } } pMem->flags = MEM_Int; pMem->u.i = pOp->p1; /* P1 */ pMem->memType = MEM_Int; pMem++; pMem->flags = MEM_Int; pMem->u.i = pOp->p2; /* P2 */ pMem->memType = MEM_Int; pMem++; pMem->flags = MEM_Int; pMem->u.i = pOp->p3; /* P3 */ pMem->memType = MEM_Int; pMem++; if( sqlite3VdbeMemGrow(pMem, 32, 0) ){ /* P4 */ assert( p->db->mallocFailed ); return SQLITE_ERROR; } pMem->flags = MEM_Dyn|MEM_Str|MEM_Term; zP4 = displayP4(pOp, pMem->z, 32); if( zP4!=pMem->z ){ sqlite3VdbeMemSetStr(pMem, zP4, -1, SQLITE_UTF8, 0); }else{ assert( pMem->z!=0 ); pMem->n = sqlite3Strlen30(pMem->z); pMem->enc = SQLITE_UTF8; } pMem->memType = MEM_Str; pMem++; if( p->explain==1 ){ if( sqlite3VdbeMemGrow(pMem, 4, 0) ){ assert( p->db->mallocFailed ); return SQLITE_ERROR; } pMem->flags = MEM_Dyn|MEM_Str|MEM_Term; pMem->n = 2; sqlite3_snprintf(3, pMem->z, "%.2x", pOp->p5); /* P5 */ pMem->memType = MEM_Str; pMem->enc = SQLITE_UTF8; pMem++; #ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS if( sqlite3VdbeMemGrow(pMem, 500, 0) ){ assert( p->db->mallocFailed ); return SQLITE_ERROR; } pMem->flags = MEM_Dyn|MEM_Str|MEM_Term; pMem->n = displayComment(pOp, zP4, pMem->z, 500); pMem->memType = MEM_Str; pMem->enc = SQLITE_UTF8; #else pMem->flags = MEM_Null; /* Comment */ pMem->memType = MEM_Null; #endif } p->nResColumn = 8 - 4*(p->explain-1); p->pResultSet = &p->aMem[1]; p->rc = SQLITE_OK; rc = SQLITE_ROW; |
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Changes to src/vdbemem.c.
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285 286 287 288 289 290 291 | sqlite3VdbeMemSetNull(p); } } /* ** Release any memory held by the Mem. This may leave the Mem in an ** inconsistent state, for example with (Mem.z==0) and | | | 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 | sqlite3VdbeMemSetNull(p); } } /* ** Release any memory held by the Mem. This may leave the Mem in an ** inconsistent state, for example with (Mem.z==0) and ** (Mem.memType==MEM_Str). */ void sqlite3VdbeMemRelease(Mem *p){ VdbeMemRelease(p); if( p->zMalloc ){ sqlite3DbFree(p->db, p->zMalloc); p->zMalloc = 0; } |
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476 477 478 479 480 481 482 | pFrame->pParent = pFrame->v->pDelFrame; pFrame->v->pDelFrame = pFrame; } if( pMem->flags & MEM_RowSet ){ sqlite3RowSetClear(pMem->u.pRowSet); } MemSetTypeFlag(pMem, MEM_Null); | | | | 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 | pFrame->pParent = pFrame->v->pDelFrame; pFrame->v->pDelFrame = pFrame; } if( pMem->flags & MEM_RowSet ){ sqlite3RowSetClear(pMem->u.pRowSet); } MemSetTypeFlag(pMem, MEM_Null); pMem->memType = MEM_Null; } void sqlite3ValueSetNull(sqlite3_value *p){ sqlite3VdbeMemSetNull((Mem*)p); } /* ** Delete any previous value and set the value to be a BLOB of length ** n containing all zeros. */ void sqlite3VdbeMemSetZeroBlob(Mem *pMem, int n){ sqlite3VdbeMemRelease(pMem); pMem->flags = MEM_Blob|MEM_Zero; pMem->memType = MEM_Blob; pMem->n = 0; if( n<0 ) n = 0; pMem->u.nZero = n; pMem->enc = SQLITE_UTF8; #ifdef SQLITE_OMIT_INCRBLOB sqlite3VdbeMemGrow(pMem, n, 0); |
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512 513 514 515 516 517 518 | ** Delete any previous value and set the value stored in *pMem to val, ** manifest type INTEGER. */ void sqlite3VdbeMemSetInt64(Mem *pMem, i64 val){ sqlite3VdbeMemRelease(pMem); pMem->u.i = val; pMem->flags = MEM_Int; | | | | 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 | ** Delete any previous value and set the value stored in *pMem to val, ** manifest type INTEGER. */ void sqlite3VdbeMemSetInt64(Mem *pMem, i64 val){ sqlite3VdbeMemRelease(pMem); pMem->u.i = val; pMem->flags = MEM_Int; pMem->memType = MEM_Int; } #ifndef SQLITE_OMIT_FLOATING_POINT /* ** Delete any previous value and set the value stored in *pMem to val, ** manifest type REAL. */ void sqlite3VdbeMemSetDouble(Mem *pMem, double val){ if( sqlite3IsNaN(val) ){ sqlite3VdbeMemSetNull(pMem); }else{ sqlite3VdbeMemRelease(pMem); pMem->r = val; pMem->flags = MEM_Real; pMem->memType = MEM_Real; } } #endif /* ** Delete any previous value and set the value of pMem to be an ** empty boolean index. |
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735 736 737 738 739 740 741 | pMem->xDel = xDel; flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn); } pMem->n = nByte; pMem->flags = flags; pMem->enc = (enc==0 ? SQLITE_UTF8 : enc); | | | 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 | pMem->xDel = xDel; flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn); } pMem->n = nByte; pMem->flags = flags; pMem->enc = (enc==0 ? SQLITE_UTF8 : enc); pMem->memType = flags&0x1f; #ifndef SQLITE_OMIT_UTF16 if( pMem->enc!=SQLITE_UTF8 && sqlite3VdbeMemHandleBom(pMem) ){ return SQLITE_NOMEM; } #endif |
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906 907 908 909 910 911 912 | if( offset+amt<=available ){ sqlite3VdbeMemRelease(pMem); pMem->z = &zData[offset]; pMem->flags = MEM_Blob|MEM_Ephem; }else if( SQLITE_OK==(rc = sqlite3VdbeMemGrow(pMem, amt+2, 0)) ){ pMem->flags = MEM_Blob|MEM_Dyn|MEM_Term; pMem->enc = 0; | | | 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 | if( offset+amt<=available ){ sqlite3VdbeMemRelease(pMem); pMem->z = &zData[offset]; pMem->flags = MEM_Blob|MEM_Ephem; }else if( SQLITE_OK==(rc = sqlite3VdbeMemGrow(pMem, amt+2, 0)) ){ pMem->flags = MEM_Blob|MEM_Dyn|MEM_Term; pMem->enc = 0; pMem->memType = MEM_Blob; if( key ){ rc = sqlite3BtreeKey(pCur, offset, amt, pMem->z); }else{ rc = sqlite3BtreeData(pCur, offset, amt, pMem->z); } pMem->z[amt] = 0; pMem->z[amt+1] = 0; |
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976 977 978 979 980 981 982 | /* ** Create a new sqlite3_value object. */ sqlite3_value *sqlite3ValueNew(sqlite3 *db){ Mem *p = sqlite3DbMallocZero(db, sizeof(*p)); if( p ){ p->flags = MEM_Null; | | | 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 | /* ** Create a new sqlite3_value object. */ sqlite3_value *sqlite3ValueNew(sqlite3 *db){ Mem *p = sqlite3DbMallocZero(db, sizeof(*p)); if( p ){ p->flags = MEM_Null; p->memType = MEM_Null; p->db = db; } return p; } /* ** Context object passed by sqlite3Stat4ProbeSetValue() through to |
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1026 1027 1028 1029 1030 1031 1032 | if( pRec->pKeyInfo ){ assert( pRec->pKeyInfo->nField+pRec->pKeyInfo->nXField==nCol ); assert( pRec->pKeyInfo->enc==ENC(db) ); pRec->flags = UNPACKED_PREFIX_MATCH; pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord))); for(i=0; i<nCol; i++){ pRec->aMem[i].flags = MEM_Null; | | | 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 | if( pRec->pKeyInfo ){ assert( pRec->pKeyInfo->nField+pRec->pKeyInfo->nXField==nCol ); assert( pRec->pKeyInfo->enc==ENC(db) ); pRec->flags = UNPACKED_PREFIX_MATCH; pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord))); for(i=0; i<nCol; i++){ pRec->aMem[i].flags = MEM_Null; pRec->aMem[i].memType = MEM_Null; pRec->aMem[i].db = db; } }else{ sqlite3DbFree(db, pRec); pRec = 0; } } |
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1099 1100 1101 1102 1103 1104 1105 | if( pVal==0 ) goto no_mem; if( ExprHasProperty(pExpr, EP_IntValue) ){ sqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt); }else{ zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken); if( zVal==0 ) goto no_mem; sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC); | | | 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 | if( pVal==0 ) goto no_mem; if( ExprHasProperty(pExpr, EP_IntValue) ){ sqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt); }else{ zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken); if( zVal==0 ) goto no_mem; sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC); if( op==TK_FLOAT ) pVal->memType = MEM_Real; } if( (op==TK_INTEGER || op==TK_FLOAT ) && affinity==SQLITE_AFF_NONE ){ sqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8); }else{ sqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8); } if( pVal->flags & (MEM_Int|MEM_Real) ) pVal->flags &= ~MEM_Str; |
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