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-rw-r--r--src/backend/executor/nodeAgg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c
index 5960e4a6c19..19342a420c1 100644
--- a/src/backend/executor/nodeAgg.c
+++ b/src/backend/executor/nodeAgg.c
@@ -1642,7 +1642,7 @@ find_hash_columns(AggState *aggstate)
perhash->hashGrpColIdxHash[i] = i + 1;
perhash->numhashGrpCols++;
/* delete already mapped columns */
- bms_del_member(colnos, grpColIdx[i]);
+ colnos = bms_del_member(colnos, grpColIdx[i]);
}
/* and add the remaining columns */