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-rw-r--r--src/backend/executor/nodeAgg.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c
index 2e9a21bf400..a99b4a60754 100644
--- a/src/backend/executor/nodeAgg.c
+++ b/src/backend/executor/nodeAgg.c
@@ -1287,7 +1287,10 @@ build_hash_tables(AggState *aggstate)
Assert(perhash->aggnode->numGroups > 0);
- build_hash_table(aggstate, setno, perhash->aggnode->numGroups);
+ if (perhash->hashtable)
+ ResetTupleHashTable(perhash->hashtable);
+ else
+ build_hash_table(aggstate, setno, perhash->aggnode->numGroups);
}
}