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Remove an unnecessary branch from exprAnalyze(), resulting in a small

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performance gain.

FossilOrigin-Name: 3312be1db3519074393573265459f6a1eeabce541a9ef4d93689529ea2b8f739
This commit is contained in:
drh
2021-12-02 13:45:10 +00:00
parent cdd9050396
commit cbb7746caa
3 changed files with 9 additions and 9 deletions
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4
src/whereexpr.c
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@@ -1070,9 +1070,11 @@ static void exprAnalyze(
if( db->mallocFailed ){
return;
}
assert( pWC->nTerm > idxTerm );
pTerm = &pWC->a[idxTerm];
pMaskSet = &pWInfo->sMaskSet;
pExpr = pTerm->pExpr;
assert( pExpr!=0 ); /* Because malloc() has not failed */
assert( pExpr->op!=TK_AS && pExpr->op!=TK_COLLATE );
prereqLeft = sqlite3WhereExprUsage(pMaskSet, pExpr->pLeft);
op = pExpr->op;
@@ -1084,8 +1086,6 @@ static void exprAnalyze(
}else{
pTerm->prereqRight = sqlite3WhereExprListUsage(pMaskSet, pExpr->x.pList);
}
}else if( op==TK_ISNULL ){
pTerm->prereqRight = 0;
}else{
pTerm->prereqRight = sqlite3WhereExprUsage(pMaskSet, pExpr->pRight);
}