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Avoid coding unindexed WHERE constraints if an equivalent transitive term has already been coded by an outer loop.

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FossilOrigin-Name: 644bb77f8bb2c3499db7c280440c92fd2649a98ce714ae0d5d690eabfdc04326
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dan
2021-04-05 16:20:59 +00:00
parent d5e7fff2ca
commit 240e36c0e3
4 changed files with 29 additions and 9 deletions
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src/wherecode.c
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@@ -2448,6 +2448,7 @@ Bitmask sqlite3WhereCodeOneLoopStart(
sEAlt = *pAlt->pExpr;
sEAlt.pLeft = pE->pLeft;
sqlite3ExprIfFalse(pParse, &sEAlt, addrCont, SQLITE_JUMPIFNULL);
pAlt->wtFlags |= TERM_CODED;
}
/* For a LEFT OUTER JOIN, generate code that will record the fact that