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Fix a problem causing queries containing window functions to ignore collation sequences under some circumstances.

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FossilOrigin-Name: e6c2192ef88e9990c8b91755c8e779f09e23f936a17123d8e42059257b756ed7
This commit is contained in:
dan
2020-07-13 15:20:27 +00:00
parent bbc9e1908a
commit 27da907f8e
4 changed files with 64 additions and 7 deletions
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2
src/window.c
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@@ -803,6 +803,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
p->pSub = sqlite3ExprListAppend(pParse, p->pSub, pDup);
}
if( p->pSub ){
int f = pExpr->flags & EP_Collate;
assert( ExprHasProperty(pExpr, EP_Static)==0 );
ExprSetProperty(pExpr, EP_Static);
sqlite3ExprDelete(pParse->db, pExpr);
@@ -813,6 +814,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
pExpr->iColumn = (iCol<0 ? p->pSub->nExpr-1: iCol);
pExpr->iTable = p->pWin->iEphCsr;
pExpr->y.pTab = p->pTab;
pExpr->flags = f;
}
if( pParse->db->mallocFailed ) return WRC_Abort;
break;