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Fix initialization of fake LSN for unlogged relations 

9155580 has changed the value of the first fake LSN for unlogged
relations from 1 to FirstNormalUnloggedLSN (aka 1000), GiST requiring a
non-zero LSN on some pages to allow an interlocking logic to work, but
its value was still initialized to 1 at the beginning of recovery or
after running pg_resetwal.  This fixes the initialization for both code
paths.

Author: Takayuki Tsunakawa
Reviewed-by: Dilip Kumar, Kyotaro Horiguchi, Michael Paquier
Discussion: https://postgr.es/m/OSBPR01MB2503CE851940C17DE44AE3D9FE6F0@OSBPR01MB2503.jpnprd01.prod.outlook.com
Backpatch-through: 12
This commit is contained in:
Michael Paquier 2019-10-27 13:54:12 +09:00
parent b804521344
commit 51970fa8df
2 changed files with 2 additions and 2 deletions
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2
src/backend/access/transam/xlog.c
View File

@ -6687,7 +6687,7 @@ StartupXLOG(void)
if (ControlFile->state == DB_SHUTDOWNED)
XLogCtl->unloggedLSN = ControlFile->unloggedLSN;
else
XLogCtl->unloggedLSN = 1;
XLogCtl->unloggedLSN = FirstNormalUnloggedLSN;
/*
* We must replay WAL entries using the same TimeLineID they were created

2
src/bin/pg_resetwal/pg_resetwal.c
View File

@ -699,7 +699,7 @@ GuessControlValues(void)
ControlFile.state = DB_SHUTDOWNED;
ControlFile.time = (pg_time_t) time(NULL);
ControlFile.checkPoint = ControlFile.checkPointCopy.redo;
ControlFile.unloggedLSN = 1;
ControlFile.unloggedLSN = FirstNormalUnloggedLSN;
/* minRecoveryPoint, backupStartPoint and backupEndPoint can be left zero */