diff options
Diffstat (limited to 'src/backend/executor/nodeAgg.c')
| -rw-r--r-- | src/backend/executor/nodeAgg.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c index dfbac968390..20d23696a53 100644 --- a/src/backend/executor/nodeAgg.c +++ b/src/backend/executor/nodeAgg.c @@ -2476,7 +2476,7 @@ agg_retrieve_direct(AggState *aggstate) * If we are grouping, check whether we've crossed a group * boundary. */ - if (node->aggstrategy != AGG_PLAIN) + if (node->aggstrategy != AGG_PLAIN && node->numCols > 0) { tmpcontext->ecxt_innertuple = firstSlot; if (!ExecQual(aggstate->phase->eqfunctions[node->numCols - 1], @@ -3480,8 +3480,6 @@ ExecInitAgg(Agg *node, EState *estate, int eflags) */ if (aggnode->aggstrategy == AGG_SORTED) { - Assert(aggnode->numCols > 0); - /* * Build a separate function for each subset of columns that * need to be compared. @@ -3512,7 +3510,8 @@ ExecInitAgg(Agg *node, EState *estate, int eflags) } /* and for all grouped columns, unless already computed */ - if (phasedata->eqfunctions[aggnode->numCols - 1] == NULL) + if (aggnode->numCols > 0 && + phasedata->eqfunctions[aggnode->numCols - 1] == NULL) { phasedata->eqfunctions[aggnode->numCols - 1] = execTuplesMatchPrepare(scanDesc, |