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authorTom Lane2016-02-22 16:20:35 +0000
committerTom Lane2016-02-22 16:20:35 +0000
commit73bf8715aa7430bd003516bde448507fbe789c05 (patch)
tree1ddf2a5fb9d5df842bb6446c3dd43b882ee2b32c /src/include
parentea56b06cf77a6932a74f9d4ec6c950a333d1527d (diff)
Remove redundant PGPROC.lockGroupLeaderIdentifier field.
We don't really need this field, because it's either zero or redundant with PGPROC.pid. The use of zero to mark "not a group leader" is not necessary since we can just as well test whether lockGroupLeader is NULL. This does not save very much, either as to code or data, but the simplification seems worthwhile anyway.
Diffstat (limited to 'src/include')
-rw-r--r--src/include/storage/proc.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index a9405ce13be..dbcdd3f340e 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -166,7 +166,6 @@ struct PGPROC
* Support for lock groups. Use LockHashPartitionLockByProc on the group
* leader to get the LWLock protecting these fields.
*/
- int lockGroupLeaderIdentifier; /* MyProcPid, if I'm a leader */
PGPROC *lockGroupLeader; /* lock group leader, if I'm a member */
dlist_head lockGroupMembers; /* list of members, if I'm a leader */
dlist_node lockGroupLink; /* my member link, if I'm a member */