diff options
| -rw-r--r-- | src/backend/storage/lmgr/predicate.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/backend/storage/lmgr/predicate.c b/src/backend/storage/lmgr/predicate.c index 74e4b35837b..6a6d9d6d5cc 100644 --- a/src/backend/storage/lmgr/predicate.c +++ b/src/backend/storage/lmgr/predicate.c @@ -116,10 +116,12 @@ * than its own active transaction must acquire an exclusive * lock. * - * FirstPredicateLockMgrLock based partition locks + * PredicateLockHashPartitionLock(hashcode) * - The same lock protects a target, all locks on that target, and - * the linked list of locks on the target.. - * - When more than one is needed, acquire in ascending order. + * the linked list of locks on the target. + * - When more than one is needed, acquire in ascending address order. + * - When all are needed (rare), acquire in ascending index order with + * PredicateLockHashPartitionLockByIndex(index). * * SerializableXactHashLock * - Protects both PredXact and SerializableXidHash. |