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Diffstat (limited to 'src/backend/executor/nodeAgg.c')
| -rw-r--r-- | src/backend/executor/nodeAgg.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c index d87677d6599..5bf9e99bbc8 100644 --- a/src/backend/executor/nodeAgg.c +++ b/src/backend/executor/nodeAgg.c @@ -3665,7 +3665,11 @@ ExecInitAgg(Agg *node, EState *estate, int eflags) &aggstate->hash_ngroups_limit, &aggstate->hash_planned_partitions); find_hash_columns(aggstate); - build_hash_tables(aggstate); + + /* Skip massive memory allocation if we are just doing EXPLAIN */ + if (!(eflags & EXEC_FLAG_EXPLAIN_ONLY)) + build_hash_tables(aggstate); + aggstate->table_filled = false; /* Initialize this to 1, meaning nothing spilled, yet */ |