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| Comment: | Fix an array index that is out of bounds. Ticket #1251. (CVS 2462) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
bcf87e4d1681d6c2856e716aae0135c2 |
| User & Date: | drh 2005-05-19 01:26:14 |
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2005-05-19
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| 08:43 | Always use a more specific type (P3_FUNCDEF) instead of P3_POINTER as the P3 type of a vdbe instruction. (CVS 2463) (check-in: 79a41674 user: danielk1977 tags: trunk) | |
| 01:26 | Fix an array index that is out of bounds. Ticket #1251. (CVS 2462) (check-in: bcf87e4d user: drh tags: trunk) | |
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2005-05-17
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| 11:25 | Provide a compile-time parameter to set the default file creation permissions under Unix. Ticket #1247. (CVS 2461) (check-in: bfa55bec user: drh tags: trunk) | |
Changes to src/where.c.
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** This module contains C code that generates VDBE code used to process ** the WHERE clause of SQL statements. This module is reponsible for ** generating the code that loops through a table looking for applicable ** rows. Indices are selected and used to speed the search when doing ** so is applicable. Because this module is responsible for selecting ** indices, you might also think of this module as the "query optimizer". ** ** $Id: where.c,v 1.137 2005/04/22 02:38:38 drh Exp $ */ #include "sqliteInt.h" /* ** The query generator uses an array of instances of this structure to ** help it analyze the subexpressions of the WHERE clause. Each WHERE ** clause subexpression is separated from the others by an AND operator. ................................................................................ if( !pColl ){ pColl = pParse->db->pDfltColl; } if( pTerm->idxLeft==iCur && (pTerm->prereqRight & loopMask)==pTerm->prereqRight ){ int iColumn = pX->pLeft->iColumn; int k; char idxaff = pIdx->pTable->aCol[iColumn].affinity; for(k=0; k<pIdx->nColumn; k++){ /* If the collating sequences or affinities don't match, ** ignore this index. */ if( pColl!=pIdx->keyInfo.aColl[k] ) continue; if( !sqlite3IndexAffinityOk(pX, idxaff) ) continue; if( pIdx->aiColumn[k]==iColumn ){ switch( pX->op ){ |
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** This module contains C code that generates VDBE code used to process ** the WHERE clause of SQL statements. This module is reponsible for ** generating the code that loops through a table looking for applicable ** rows. Indices are selected and used to speed the search when doing ** so is applicable. Because this module is responsible for selecting ** indices, you might also think of this module as the "query optimizer". ** ** $Id: where.c,v 1.138 2005/05/19 01:26:14 drh Exp $ */ #include "sqliteInt.h" /* ** The query generator uses an array of instances of this structure to ** help it analyze the subexpressions of the WHERE clause. Each WHERE ** clause subexpression is separated from the others by an AND operator. ................................................................................ if( !pColl ){ pColl = pParse->db->pDfltColl; } if( pTerm->idxLeft==iCur && (pTerm->prereqRight & loopMask)==pTerm->prereqRight ){ int iColumn = pX->pLeft->iColumn; int k; char idxaff = iColumn>=0 ? pIdx->pTable->aCol[iColumn].affinity : 0; for(k=0; k<pIdx->nColumn; k++){ /* If the collating sequences or affinities don't match, ** ignore this index. */ if( pColl!=pIdx->keyInfo.aColl[k] ) continue; if( !sqlite3IndexAffinityOk(pX, idxaff) ) continue; if( pIdx->aiColumn[k]==iColumn ){ switch( pX->op ){ |