diff options
| -rw-r--r-- | src/backend/access/heap/heapam.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index 94edb1decae..827c43e0ccb 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -4497,7 +4497,15 @@ failed: { Assert(result == TM_SelfModified || result == TM_Updated || result == TM_Deleted || result == TM_WouldBlock); - Assert(!(tuple->t_data->t_infomask & HEAP_XMAX_INVALID)); + + /* + * When locking a tuple under LockWaitSkip semantics and we fail with + * TM_WouldBlock above, it's possible for concurrent transactions to + * release the lock and set HEAP_XMAX_INVALID in the meantime. So + * this assert is slightly different from the equivalent one in + * heap_delete and heap_update. + */ + Assert(TM_WouldBlock || !(tuple->t_data->t_infomask & HEAP_XMAX_INVALID)); Assert(result != TM_Updated || !ItemPointerEquals(&tuple->t_self, &tuple->t_data->t_ctid)); tmfd->ctid = tuple->t_data->t_ctid; |