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Overview
| Comment: | Get the index-only optimization working for OR queries. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | nextgen-query-plan-exp |
| Files: | files | file ages | folders |
| SHA1: |
774d5ff857cfad3471401ed518ed0959 |
| User & Date: | drh 2013-06-04 18:03:22 |
Context
|
2013-06-04
| ||
| 18:27 | Restore the PRAGMA reverse_unordered_selects behavior. (check-in: f49cd6c4 user: drh tags: nextgen-query-plan-exp) | |
| 18:03 | Get the index-only optimization working for OR queries. (check-in: 774d5ff8 user: drh tags: nextgen-query-plan-exp) | |
| 15:31 | Test case updates. (check-in: 0360fec7 user: drh tags: nextgen-query-plan-exp) | |
Changes
Changes to src/where.c.
3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 |
*/
pSubLoop = pSubWInfo->a[0].pWLoop;
if( (pSubLoop->wsFlags & WHERE_INDEXED)!=0
&& (pSubLoop->wsFlags & WHERE_TEMP_INDEX)==0
&& (ii==0 || pSubLoop->u.btree.pIndex==pCov)
){
assert( pSubWInfo->a[0].iIdxCur==iCovCur );
pCov = pLoop->u.btree.pIndex;
}else{
pCov = 0;
}
/* Finish the loop through table entries that match term pOrTerm. */
sqlite3WhereEnd(pSubWInfo);
}
|
| |
3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 |
*/
pSubLoop = pSubWInfo->a[0].pWLoop;
if( (pSubLoop->wsFlags & WHERE_INDEXED)!=0
&& (pSubLoop->wsFlags & WHERE_TEMP_INDEX)==0
&& (ii==0 || pSubLoop->u.btree.pIndex==pCov)
){
assert( pSubWInfo->a[0].iIdxCur==iCovCur );
pCov = pSubLoop->u.btree.pIndex;
}else{
pCov = 0;
}
/* Finish the loop through table entries that match term pOrTerm. */
sqlite3WhereEnd(pSubWInfo);
}
|