diff options
Diffstat (limited to 'src/backend/executor/nodeAgg.c')
| -rw-r--r-- | src/backend/executor/nodeAgg.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c index c99a0de4ddb..f5a187cae3a 100644 --- a/src/backend/executor/nodeAgg.c +++ b/src/backend/executor/nodeAgg.c @@ -2584,8 +2584,9 @@ agg_refill_hash_table(AggState *aggstate) if (aggstate->hash_batches == NIL) return false; - batch = linitial(aggstate->hash_batches); - aggstate->hash_batches = list_delete_first(aggstate->hash_batches); + /* hash_batches is a stack, with the top item at the end of the list */ + batch = llast(aggstate->hash_batches); + aggstate->hash_batches = list_delete_last(aggstate->hash_batches); hash_agg_set_limits(aggstate->hashentrysize, batch->input_card, batch->used_bits, &aggstate->hash_mem_limit, @@ -3098,7 +3099,7 @@ hashagg_spill_finish(AggState *aggstate, HashAggSpill *spill, int setno) new_batch = hashagg_batch_new(tape, setno, spill->ntuples[i], cardinality, used_bits); - aggstate->hash_batches = lcons(new_batch, aggstate->hash_batches); + aggstate->hash_batches = lappend(aggstate->hash_batches, new_batch); aggstate->hash_batches_used++; } @@ -3113,8 +3114,6 @@ hashagg_spill_finish(AggState *aggstate, HashAggSpill *spill, int setno) static void hashagg_reset_spill_state(AggState *aggstate) { - ListCell *lc; - /* free spills from initial pass */ if (aggstate->hash_spills != NULL) { @@ -3132,13 +3131,7 @@ hashagg_reset_spill_state(AggState *aggstate) } /* free batches */ - foreach(lc, aggstate->hash_batches) - { - HashAggBatch *batch = (HashAggBatch *) lfirst(lc); - - pfree(batch); - } - list_free(aggstate->hash_batches); + list_free_deep(aggstate->hash_batches); aggstate->hash_batches = NIL; /* close tape set */ |