Thread

[PATCH v1] Fix PrivateRefCount hash table key size

Bertrand Drouvot <bertranddrouvot.pg@gmail.com> — 2025-12-02T14:07:45Z

The first PrivateRefCountEntry member is Buffer (int), so the keysize should
be sizeof(Buffer) and not sizeof(int32).
---
 src/backend/storage/buffer/bufmgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 100.0% src/backend/storage/buffer/

diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
index f373cead95f..b6cde7e3803 100644
--- a/src/backend/storage/buffer/bufmgr.c
+++ b/src/backend/storage/buffer/bufmgr.c
@@ -4019,7 +4019,7 @@ InitBufferManagerAccess(void)
 
 	memset(&PrivateRefCountArray, 0, sizeof(PrivateRefCountArray));
 
-	hash_ctl.keysize = sizeof(int32);
+	hash_ctl.keysize = sizeof(Buffer);
 	hash_ctl.entrysize = sizeof(PrivateRefCountEntry);
 
 	PrivateRefCountHash = hash_create("PrivateRefCount", 100, &hash_ctl,
-- 
2.34.1


--+8gpCtHlmrjejSKf--