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Overview
| Comment: | Explicit typecasts to silence nuisance compiler warnings. Ticket #1398. (CVS 2650) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
90712ea7273597214d6c77a01e41f841 |
| User & Date: | drh 2005-08-31 13:13:31 |
Context
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2005-08-31
| ||
| 13:48 | Updates to the query optimizer overview document. (CVS 2651) check-in: b1dceef0 user: drh tags: trunk | |
| 13:13 | Explicit typecasts to silence nuisance compiler warnings. Ticket #1398. (CVS 2650) check-in: 90712ea7 user: drh tags: trunk | |
| 03:13 | Refinements to the optimizer overview and integration into the website. (CVS 2649) check-in: ccd12e9e user: drh tags: trunk | |
Changes
Changes to src/build.c.
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** CREATE INDEX ** DROP INDEX ** creating ID lists ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** ** $Id: build.c,v 1.343 2005/08/29 23:00:04 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called when a new SQL statement is beginning to ** be parsed. Initialize the pParse structure as needed. ................................................................................ /* ** Allocate the index structure. */ pIndex = sqliteMalloc( sizeof(Index) + strlen(zName) + 1 + sizeof(int) + (sizeof(int)*2 + sizeof(CollSeq*))*pList->nExpr ); if( sqlite3_malloc_failed ) goto exit_create_index; pIndex->aiColumn = (int*)&pIndex->keyInfo.aColl[pList->nExpr]; pIndex->aiRowEst = &pIndex->aiColumn[pList->nExpr]; pIndex->zName = (char*)&pIndex->aiRowEst[pList->nExpr+1]; strcpy(pIndex->zName, zName); pIndex->pTable = pTab; pIndex->nColumn = pList->nExpr; pIndex->onError = onError; pIndex->autoIndex = pName==0; pIndex->iDb = iDb; ................................................................................ ** aiRowEst[N]>=1 ** ** Apart from that, we have little to go on besides intuition as to ** how aiRowEst[] should be initialized. The numbers generated here ** are based on typical values found in actual indices. */ void sqlite3DefaultRowEst(Index *pIdx){ int *a = pIdx->aiRowEst; int i; assert( a!=0 ); a[0] = 1000000; for(i=pIdx->nColumn; i>=1; i--){ a[i] = 10; } if( pIdx->onError!=OE_None ){ |
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** CREATE INDEX ** DROP INDEX ** creating ID lists ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** ** $Id: build.c,v 1.344 2005/08/31 13:13:31 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called when a new SQL statement is beginning to ** be parsed. Initialize the pParse structure as needed. ................................................................................ /* ** Allocate the index structure. */ pIndex = sqliteMalloc( sizeof(Index) + strlen(zName) + 1 + sizeof(int) + (sizeof(int)*2 + sizeof(CollSeq*))*pList->nExpr ); if( sqlite3_malloc_failed ) goto exit_create_index; pIndex->aiColumn = (int*)&pIndex->keyInfo.aColl[pList->nExpr]; pIndex->aiRowEst = (unsigned*)&pIndex->aiColumn[pList->nExpr]; pIndex->zName = (char*)&pIndex->aiRowEst[pList->nExpr+1]; strcpy(pIndex->zName, zName); pIndex->pTable = pTab; pIndex->nColumn = pList->nExpr; pIndex->onError = onError; pIndex->autoIndex = pName==0; pIndex->iDb = iDb; ................................................................................ ** aiRowEst[N]>=1 ** ** Apart from that, we have little to go on besides intuition as to ** how aiRowEst[] should be initialized. The numbers generated here ** are based on typical values found in actual indices. */ void sqlite3DefaultRowEst(Index *pIdx){ unsigned *a = pIdx->aiRowEst; int i; assert( a!=0 ); a[0] = 1000000; for(i=pIdx->nColumn; i>=1; i--){ a[i] = 10; } if( pIdx->onError!=OE_None ){ |