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Overview
Comment: | Add two NEVER() operators in the sqlite3BtreeRowCountEst() routine. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | auto-analyze |
Files: | files | file ages | folders |
SHA1: |
7a959f6d1ea038988cdb4c02d6f37aba |
User & Date: | drh 2017-02-23 02:15:33.201 |
Context
2017-03-02
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13:22 | Merge recent trunk enhancements. (check-in: c60cdb4761 user: drh tags: auto-analyze) | |
2017-02-23
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02:15 | Add two NEVER() operators in the sqlite3BtreeRowCountEst() routine. (check-in: 7a959f6d1e user: drh tags: auto-analyze) | |
00:58 | Do a single OP_Expire at the very end of "PRAGMA optimize", and omit the OP_Expire on ANALYZE commands invoked by the pragma. (check-in: 188300a337 user: drh tags: auto-analyze) | |
Changes
Changes to src/btree.c.
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5326 5327 5328 5329 5330 5331 5332 | */ i64 sqlite3BtreeRowCountEst(BtCursor *pCur){ i64 n; u8 i; assert( cursorOwnsBtShared(pCur) ); assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) ); | > > > > | | > | 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346 | */ i64 sqlite3BtreeRowCountEst(BtCursor *pCur){ i64 n; u8 i; assert( cursorOwnsBtShared(pCur) ); assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) ); /* Currently this interface is only called by the OP_IfSmaller ** opcode, and it that case the cursor will always be valid and ** will always point to a leaf node. */ if( NEVER(pCur->eState!=CURSOR_VALID) ) return -1; if( NEVER(pCur->apPage[pCur->iPage]->leaf==0) ) return -1; for(n=1, i=0; i<=pCur->iPage; i++){ n *= pCur->apPage[i]->nCell; } return n; } /* |
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