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Fix a bug causing spurious "sub-select returns N columns expected 1" errors

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in join queries with a term like "(a, b) IN (SELECT ...)" in the WHERE clause.

FossilOrigin-Name: 14dfd96f9bca2df5033b2d894bf63cc8bf450a45ca11df5e3bbb814fdf96b656
This commit is contained in:
dan
2018-01-23 16:38:57 +00:00
parent 61d04974f0
commit a916b57013
4 changed files with 60 additions and 9 deletions
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6
src/wherecode.c
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@@ -2170,6 +2170,12 @@ Bitmask sqlite3WhereCodeOneLoopStart(
WO_EQ|WO_IN|WO_IS, 0);
if( pAlt==0 ) continue;
if( pAlt->wtFlags & (TERM_CODED) ) continue;
if( (pAlt->eOperator & WO_IN)
&& (pAlt->pExpr->flags & EP_xIsSelect)
&& (pAlt->pExpr->x.pSelect->pEList->nExpr>1)
){
continue;
}
testcase( pAlt->eOperator & WO_EQ );
testcase( pAlt->eOperator & WO_IS );
testcase( pAlt->eOperator & WO_IN );