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Reset minRecoveryPoint at checkpoints, so that we don't uselessly update

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it in the control file at crash recovery following an archive recovery.

Per Fujii Masao and subsequent discussion.
This commit is contained in:
Heikki Linnakangas
2009-12-30 08:37:21 +00:00
parent 4847d5956c
commit ff1e1e45b9
1 changed files with 3 additions and 1 deletions
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4
src/backend/access/transam/xlog.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.354 2009/12/19 01:32:33 sriggs Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.355 2009/12/30 08:37:21 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@ -6882,6 +6882,8 @@ CreateCheckPoint(int flags)
ControlFile->checkPoint = ProcLastRecPtr;
ControlFile->checkPointCopy = checkPoint;
ControlFile->time = (pg_time_t) time(NULL);
/* crash recovery should always recover to the end of WAL */
MemSet(&ControlFile->minRecoveryPoint, 0, sizeof(XLogRecPtr));
UpdateControlFile();
LWLockRelease(ControlFileLock);