diff options
Diffstat (limited to 'src/backend/executor')
| -rw-r--r-- | src/backend/executor/execGrouping.c | 4 | ||||
| -rw-r--r-- | src/backend/executor/nodeHash.c | 4 | ||||
| -rw-r--r-- | src/backend/executor/nodeMemoize.c | 8 |
3 files changed, 8 insertions, 8 deletions
diff --git a/src/backend/executor/execGrouping.c b/src/backend/executor/execGrouping.c index af6e9c42d81..5da4b375300 100644 --- a/src/backend/executor/execGrouping.c +++ b/src/backend/executor/execGrouping.c @@ -459,8 +459,8 @@ TupleHashTableHash_internal(struct tuplehash_hash *tb, Datum attr; 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); attr = slot_getattr(slot, att, &isNull); 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 diff --git a/src/backend/executor/nodeMemoize.c b/src/backend/executor/nodeMemoize.c index 55cdd5c4d98..23441e33cad 100644 --- a/src/backend/executor/nodeMemoize.c +++ b/src/backend/executor/nodeMemoize.c @@ -166,8 +166,8 @@ MemoizeHash_hash(struct memoize_hash *tb, const MemoizeKey *key) { for (int i = 0; i < numkeys; i++) { - /* 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); if (!pslot->tts_isnull[i]) /* treat nulls as having hash key 0 */ { @@ -189,8 +189,8 @@ MemoizeHash_hash(struct memoize_hash *tb, const MemoizeKey *key) for (int i = 0; i < numkeys; i++) { - /* 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); if (!pslot->tts_isnull[i]) /* treat nulls as having hash key 0 */ { |