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-rw-r--r--src/backend/executor/nodeHash.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/executor/nodeHash.c b/src/backend/executor/nodeHash.c
index 4d68a8b97b7..3510a4247c1 100644
--- a/src/backend/executor/nodeHash.c
+++ b/src/backend/executor/nodeHash.c
@@ -1840,8 +1840,8 @@ ExecHashGetHashValue(HashJoinTable hashtable,
Datum keyval;
bool isNull;
- /* rotate hashkey left 1 bit at each step */
- hashkey = (hashkey << 1) | ((hashkey & 0x80000000) ? 1 : 0);
+ /* combine successive hashkeys by rotating */
+ hashkey = pg_rotate_left32(hashkey, 1);
/*
* Get the join attribute value of the tuple