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Enhance the codeEqualityTerm() routine inside the code generator so that it is

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able to reuse an IN operator that has an invariant subquery on its right-hand
side while coding the non-matched loop of a RIGHT JOIN.
dbsqlfuzz 19f1102a70cf966ab249de56d944fc20dbebcfcf

FossilOrigin-Name: 56dd3065469e49320b13af039471b3f0b85e6f7368cfd97b1cdc0cf8fa8e1956
This commit is contained in:
drh
2022-04-29 19:00:11 +00:00
parent 8e8e9de87e
commit 3d5665366f
4 changed files with 19 additions and 9 deletions
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2
src/wherecode.c
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@@ -610,7 +610,7 @@ static int codeEqualityTerm(
iTab = 0;
if( !ExprUseXSelect(pX) || pX->x.pSelect->pEList->nExpr==1 ){
eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, 0, &iTab);
}else{
}else if( pTerm->pExpr->iTable==0 ){
sqlite3 *db = pParse->db;
pX = removeUnindexableInClauseTerms(pParse, iEq, pLoop, pX);