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Postgres FD Implementation
Commit 1e1b01cd authored by Peter Eisentraut's avatar Peter Eisentraut
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Fix outdated comment 

Author: Thomas Munro <thomas.munro@enterprisedb.com>
parent 237a0b87
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src/backend/storage/lmgr/predicate.c
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...@@ -116,10 +116,12 @@ ...@@ -116,10 +116,12 @@
* than its own active transaction must acquire an exclusive * than its own active transaction must acquire an exclusive
* lock. * lock.
* *
* FirstPredicateLockMgrLock based partition locks * PredicateLockHashPartitionLock(hashcode)
* - The same lock protects a target, all locks on that target, and * - The same lock protects a target, all locks on that target, and
* the linked list of locks on the target.. * the linked list of locks on the target.
* - When more than one is needed, acquire in ascending order. * - 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 * SerializableXactHashLock
* - Protects both PredXact and SerializableXidHash. * - Protects both PredXact and SerializableXidHash.
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