Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Performance improvements in sqlite3WhereExprUsage(). |
---|---|
Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
fdf752394b48fb7b9afe7b8a7d83f859 |
User & Date: | drh 2016-04-12 00:00:33.150 |
Context
2016-04-12
| ||
00:16 | Avoid unnecessary calls to object destructors for a small performance gain. (check-in: aec94b6ee6 user: drh tags: trunk) | |
00:00 | Performance improvements in sqlite3WhereExprUsage(). (check-in: fdf752394b user: drh tags: trunk) | |
2016-04-11
| ||
22:23 | Fix typo in the MSVC makefile. (check-in: 3189a7f185 user: mistachkin tags: trunk) | |
Changes
Changes to src/whereexpr.c.
︙ | ︙ | |||
1278 1279 1280 1281 1282 1283 1284 | Bitmask mask = 0; if( p==0 ) return 0; if( p->op==TK_COLUMN ){ mask = sqlite3WhereGetMask(pMaskSet, p->iTable); return mask; } mask = sqlite3WhereExprUsage(pMaskSet, p->pRight); | | | | 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 | Bitmask mask = 0; if( p==0 ) return 0; if( p->op==TK_COLUMN ){ mask = sqlite3WhereGetMask(pMaskSet, p->iTable); return mask; } mask = sqlite3WhereExprUsage(pMaskSet, p->pRight); if( p->pLeft ) mask |= sqlite3WhereExprUsage(pMaskSet, p->pLeft); if( ExprHasProperty(p, EP_xIsSelect) ){ mask |= exprSelectUsage(pMaskSet, p->x.pSelect); }else if( p->x.pList ){ mask |= sqlite3WhereExprListUsage(pMaskSet, p->x.pList); } return mask; } Bitmask sqlite3WhereExprListUsage(WhereMaskSet *pMaskSet, ExprList *pList){ int i; Bitmask mask = 0; |
︙ | ︙ |