From b90e4ca3edfd60309e4bc4fcb96e658826a7e20d Mon Sep 17 00:00:00 2001 From: Teodor Sigaev Date: Thu, 6 Jul 2017 17:20:37 +0300 Subject: [PATCH] Fix potential data corruption during freeze Fix oversight in 3b97e6823b94 bug fix. Bitwise AND is used instead of OR and it cleans all bits in t_infomask heap tuple field. Backpatch to 9.3 --- src/backend/access/heap/heapam.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index d5275be5c0a..f6007a436ce 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -5929,7 +5929,7 @@ heap_prepare_freeze_tuple(HeapTupleHeader tuple, TransactionId cutoff_xid, frz->t_infomask &= ~HEAP_XMAX_BITS; frz->xmax = newxmax; if (flags & FRM_MARK_COMMITTED) - frz->t_infomask &= HEAP_XMAX_COMMITTED; + frz->t_infomask |= HEAP_XMAX_COMMITTED; changed = true; } else if (flags & FRM_RETURN_IS_MULTI) -- 2.39.5