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| author | drh <drh@noemail.net> | 2013-05-01 17:22:38 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2013-05-01 17:22:38 +0000 |
| commit | 5c10f3b38e3930ec9937f8867d12fe431e3de2bc (patch) | |
| tree | f613cb4d855a9f6a91c38235d9dce9e051a2a15d /src/where.c | |
| parent | 9a1eccb621ad48bc606019a1fb18220069af38af (diff) | |
| download | sqlite-5c10f3b38e3930ec9937f8867d12fe431e3de2bc.tar.gz sqlite-5c10f3b38e3930ec9937f8867d12fe431e3de2bc.zip | |
Avoid redundant constraint checking due to transitive constraints.
FossilOrigin-Name: 329478cbed06f93652de50abdb31a6b41af02b9e
Diffstat (limited to 'src/where.c')
| -rw-r--r-- | src/where.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/where.c b/src/where.c index d70205205..62f9af676 100644 --- a/src/where.c +++ b/src/where.c @@ -4883,6 +4883,7 @@ static Bitmask codeOneLoopStart( assert( (pTerm->prereqRight & newNotReady)!=0 ); pAlt = findTerm(pWC, iCur, pTerm->u.leftColumn, notReady, WO_EQ|WO_IN, 0); if( pAlt==0 ) continue; + if( pAlt->wtFlags & (TERM_CODED) ) continue; VdbeNoopComment((v, "begin transitive constraint")); sEq = *pAlt->pExpr; sEq.pLeft = pE->pLeft; |