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Add the tentative sqlite3_allocate_queryplan() API. (CVS 3228)

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FossilOrigin-Name: 7a3e97f76b1f4f97a04f7c5a9daa400402b2ff25
This commit is contained in:
danielk1977
2006-06-13 15:00:54 +00:00
parent 5fac9f86eb
commit be8a7835ea
8 changed files with 77 additions and 40 deletions
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16
src/where.c
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@@ -16,7 +16,7 @@
** 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 1.213 2006/06/13 14:16:59 danielk1977 Exp $
** $Id: where.c,v 1.214 2006/06/13 15:00:55 danielk1977 Exp $
*/
#include "sqliteInt.h"
@@ -1005,7 +1005,8 @@ static double bestVirtualIndex(
pIdxCons->usable = (pTerm->prereqRight & notReady)==0;
}
memset(pUsage, 0, sizeof(pUsage[0])*pIdxInfo->nConstraint);
pIdxInfo->idxNum = 0;
pIdxInfo->zPlan = 0;
pIdxInfo->nPlan = 0;
pIdxInfo->orderByConsumed = 0;
pIdxInfo->estimatedCost = SQLITE_BIG_DBL;
nOrderBy = pIdxInfo->nOrderBy;
@@ -1468,6 +1469,9 @@ static void whereInfoFree(WhereInfo *pWInfo){
if( pWInfo ){
int i;
for(i=0; i<pWInfo->nLevel; i++){
if( pWInfo->a[i].pIdxInfo ){
sqliteFree(pWInfo->a[i].pIdxInfo->zPlan);
}
sqliteFree(pWInfo->a[i].pIdxInfo);
}
sqliteFree(pWInfo);
@@ -1754,8 +1758,8 @@ WhereInfo *sqlite3WhereBegin(
}
#ifndef SQLITE_OMIT_VIRTUALTABLE
else if( pLevel->pIdxInfo ){
zMsg = sqlite3MPrintf("%z VIRTUAL TABLE INDEX %d",
pLevel->pIdxInfo->idxNum);
zMsg = sqlite3MPrintf("%z VIRTUAL TABLE INDEX %s",
pLevel->pIdxInfo->zPlan);
}
#endif
if( pLevel->flags & WHERE_ORDERBY ){
@@ -1858,7 +1862,9 @@ WhereInfo *sqlite3WhereBegin(
if( j==pIdxInfo->nConstraint ) break;
}
sqlite3VdbeAddOp(v, OP_Integer, i-1, 0);
sqlite3VdbeAddOp(v, OP_Integer, pIdxInfo->idxNum, 0);
sqlite3VdbeAddOp(v, OP_Blob, pIdxInfo->nPlan, 0);
sqlite3VdbeChangeP3(v, -1, pIdxInfo->zPlan, P3_DYNAMIC);
pIdxInfo->zPlan = 0;
sqlite3VdbeAddOp(v, OP_VFilter, iCur, brk);
zSpace = (char *)sqliteMalloc(sizeof(sqlite3_value*)*(i-1));
sqlite3VdbeChangeP3(v, -1, zSpace, P3_DYNAMIC);