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Improved technique for parsing the ON and USING clauses of a join is faster

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and uses less memory.

FossilOrigin-Name: 158156a3e3d50042cafc75dea3aaaa68b1f2efb9c3d178518ea6e68e32e0d21c
This commit is contained in:
drh
2022-04-07 01:11:13 +00:00
parent 200adc9e75
commit d44f8b2385
16 changed files with 150 additions and 113 deletions
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6
src/attach.c
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@@ -480,7 +480,11 @@ static int fixSelectCb(Walker *p, Select *pSelect){
pItem->fg.fromDDL = 1;
}
#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_TRIGGER)
if( sqlite3WalkExpr(&pFix->w, pList->a[i].pOn) ) return WRC_Abort;
if( pList->a[i].fg.isUsing==0
&& sqlite3WalkExpr(&pFix->w, pList->a[i].u3.pOn)
){
return WRC_Abort;
}
#endif
}
if( pSelect->pWith ){