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Make sure IF_NULL_ROW expressions receive a separate slot in the sorter used

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to implement GROUP BY.

FossilOrigin-Name: 2bda4fca06ab6be5ad02377a7d1fd9fb9586e3181f1052e4b4937958bdd45efe
This commit is contained in:
drh
2022-07-26 15:32:02 +00:00
parent f4c291275b
commit 4b1b65ca2e
4 changed files with 19 additions and 17 deletions
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16
src/expr.c
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@@ -4088,7 +4088,7 @@ expr_code_doover:
pCol->iSorterColumn, target);
if( pCol->iColumn<0 ){
VdbeComment((v,"%s.rowid",pTab->zName));
}else if( pTab!=0 ){
}else if( ALWAYS(pTab!=0) ){
VdbeComment((v,"%s.%s",
pTab->zName, pTab->aCol[pCol->iColumn].zCnName));
if( pTab->aCol[pCol->iColumn].affinity==SQLITE_AFF_REAL ){
@@ -6227,8 +6227,10 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){
int k;
pCol = pAggInfo->aCol;
for(k=0; k<pAggInfo->nColumn; k++, pCol++){
if( pCol->iTable==pExpr->iTable &&
pCol->iColumn==pExpr->iColumn ){
if( pCol->iTable==pExpr->iTable
&& pCol->iColumn==pExpr->iColumn
&& pExpr->op!=TK_IF_NULL_ROW
){
break;
}
}
@@ -6243,15 +6245,17 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){
pCol->iMem = ++pParse->nMem;
pCol->iSorterColumn = -1;
pCol->pCExpr = pExpr;
if( pAggInfo->pGroupBy ){
if( pAggInfo->pGroupBy && pExpr->op!=TK_IF_NULL_ROW ){
int j, n;
ExprList *pGB = pAggInfo->pGroupBy;
struct ExprList_item *pTerm = pGB->a;
n = pGB->nExpr;
for(j=0; j<n; j++, pTerm++){
Expr *pE = pTerm->pExpr;
if( pE->op==TK_COLUMN && pE->iTable==pExpr->iTable &&
pE->iColumn==pExpr->iColumn ){
if( pE->op==TK_COLUMN
&& pE->iTable==pExpr->iTable
&& pE->iColumn==pExpr->iColumn
){
pCol->iSorterColumn = j;
break;
}