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When doing a DISTINCT aggregate that contains an ORDER BY, only the

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arguments to the aggregate need to be distinct, not the ORDER BY terms.

FossilOrigin-Name: d2dbbdf7194bab4e5e3b74d3dbffb012a335829824c775c72dd7347c013d2125
This commit is contained in:
drh
2023-10-25 14:54:16 +00:00
parent a9a7d118f6
commit 8f99cb9ad6
5 changed files with 34 additions and 12 deletions
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3
src/expr.c
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@@ -6806,16 +6806,17 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){
pItem->iOBTab = pParse->nTab++;
pOBList = pExpr->pLeft->x.pList;
assert( pOBList->nExpr>0 );
assert( pItem->bOBUnique==0 );
if( pOBList->nExpr==1
&& nArg==1
&& sqlite3ExprCompare(0,pOBList->a[0].pExpr,
pExpr->x.pList->a[0].pExpr,0)==0
){
pItem->bOBPayload = 0;
pItem->bOBUnique = ExprHasProperty(pExpr, EP_Distinct);
}else{
pItem->bOBPayload = 1;
}
pItem->bOBUnique = ExprHasProperty(pExpr, EP_Distinct);
}else{
pItem->iOBTab = -1;
}