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-rw-r--r--src/backend/lib/knapsack.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/src/backend/lib/knapsack.c b/src/backend/lib/knapsack.c
index 13d800718f0..439da1ad70d 100644
--- a/src/backend/lib/knapsack.c
+++ b/src/backend/lib/knapsack.c
@@ -89,10 +89,7 @@ DiscreteKnapsack(int max_weight, int num_items,
{
/* copy sets[ow] to sets[j] without realloc */
if (j != ow)
- {
- sets[j] = bms_del_members(sets[j], sets[j]);
- sets[j] = bms_add_members(sets[j], sets[ow]);
- }
+ sets[j] = bms_replace_members(sets[j], sets[ow]);
sets[j] = bms_add_member(sets[j], i);