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Diffstat (limited to 'src/backend/storage/lmgr/proc.c')
| -rw-r--r-- | src/backend/storage/lmgr/proc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c index eb321f72ea4..fa07ddf4f75 100644 --- a/src/backend/storage/lmgr/proc.c +++ b/src/backend/storage/lmgr/proc.c @@ -1077,7 +1077,13 @@ ProcSleep(LOCALLOCK *locallock, LockMethod lockMethodTable) /* * If group locking is in use, locks held by members of my locking group - * need to be included in myHeldLocks. + * need to be included in myHeldLocks. This is not required for relation + * extension lock which conflict among group members. However, including + * them in myHeldLocks will give group members the priority to get those + * locks as compared to other backends which are also trying to acquire + * those locks. OTOH, we can avoid giving priority to group members for + * that kind of locks, but there doesn't appear to be a clear advantage of + * the same. */ if (leader != NULL) { |