diff options
Diffstat (limited to 'src/backend/access/heap/heapam.c')
| -rw-r--r-- | src/backend/access/heap/heapam.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index 6a27ef41400..b019bc1a0d9 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -5722,6 +5722,17 @@ l4: goto out_locked; } + /* + * Also check Xmin: if this tuple was created by an aborted + * (sub)transaction, then we already locked the last live one in the + * chain, thus we're done, so return success. + */ + if (TransactionIdDidAbort(HeapTupleHeaderGetXmin(mytup.t_data))) + { + UnlockReleaseBuffer(buf); + return HeapTupleMayBeUpdated; + } + old_infomask = mytup.t_data->t_infomask; old_infomask2 = mytup.t_data->t_infomask2; xmax = HeapTupleHeaderGetRawXmax(mytup.t_data); |