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Fix outdated comment

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Author: Thomas Munro <thomas.munro@enterprisedb.com>
This commit is contained in:
Peter Eisentraut
2017-08-23 14:19:35 -04:00
parent 237a0b87b1
commit 1e1b01cd16
1 changed files with 5 additions and 3 deletions
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8
src/backend/storage/lmgr/predicate.c
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@ -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.