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Diffstat (limited to 'src/backend/executor/nodeAgg.c')
| -rw-r--r-- | src/backend/executor/nodeAgg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c index 08088ea3c0c..8079d977643 100644 --- a/src/backend/executor/nodeAgg.c +++ b/src/backend/executor/nodeAgg.c @@ -363,6 +363,10 @@ initialize_aggregates(AggState *aggstate, * We use a plain Datum sorter when there's a single input column; * otherwise sort the full tuple. (See comments for * process_ordered_aggregate_single.) + * + * In the future, we should consider forcing the + * tuplesort_begin_heap() case when the abbreviated key + * optimization can thereby be used, even when numInputs is 1. */ peraggstate->sortstate = (peraggstate->numInputs == 1) ? |