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| author | Peter Eisentraut <peter_e@gmx.net> | 2017-08-23 14:19:35 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-08-23 14:19:35 -0400 |
| commit | 1e1b01cd1632a7d768fb8c86c95cf3ec82dc58da (patch) | |
| tree | 54b0b1503ee9c9be684d42fce9e6af5179276ee5 | |
| parent | 237a0b87b1dc90f8789aa5441a2a11e67f46c96e (diff) | |
| download | postgresql-1e1b01cd1632a7d768fb8c86c95cf3ec82dc58da.tar.gz postgresql-1e1b01cd1632a7d768fb8c86c95cf3ec82dc58da.zip | |
Fix outdated comment
Author: Thomas Munro <thomas.munro@enterprisedb.com>
| -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. |