Tom Lane d08fd1f849 Don't advance checkPoint.nextXid near the end of a checkpoint sequence. ... This reverts commit c11130690d in favor of actually fixing the problem: namely, that we should never have been modifying the checkpoint record's nextXid at this point to begin with. The nextXid should match the state as of the checkpoint's logical WAL position (ie the redo point), not the state as of its physical position. It's especially bogus to advance it in some wal_levels and not others. In any case there is no need for the checkpoint record to carry the same nextXid shown in the XLOG_RUNNING_XACTS record just emitted by LogStandbySnapshot, as any replay operation will already have adopted that value as current. This fixes bug #7710 from Tarvi Pillessaar, and probably also explains bug #6291 from Daniel Farina, in that if a checkpoint were in progress at the instant of XID wraparound, the epoch bump would be lost as reported. (And, of course, these days there's at least a 50-50 chance of a checkpoint being in progress at any given instant.) Diagnosed by me and independently by Andres Freund. Back-patch to all branches supporting hot standby.		2012-12-02 15:20:08 -05:00
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backend	Don't advance checkPoint.nextXid near the end of a checkpoint sequence.	2012-12-02 15:20:08 -05:00
bin	Fix psql crash while parsing SQL file whose encoding is different from	2012-12-02 21:21:40 +09:00
include	Don't advance checkPoint.nextXid near the end of a checkpoint sequence.	2012-12-02 15:20:08 -05:00
interfaces	Produce a more useful error message for over-length Unix socket paths.	2012-11-29 19:57:17 -05:00
makefiles	Make sure sharedir/extension/ directory is created when needed.	2012-12-01 16:04:50 -05:00
pl	Back-patch fix and test case for bug #7516.	2012-09-14 11:50:06 -04:00
port	Stamp 9.1.6.	2012-09-19 17:50:31 -04:00
template	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
test	Prevent passing gmake's environment variables down through pg_regress.	2012-12-01 17:24:01 -05:00
timezone	Update time zone data files to tzdata release 2012f.	2012-09-19 10:45:22 -04:00
tools	Fix MSVC builds broken by xsubpp change	2011-11-27 01:23:00 -05:00
tutorial	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
bcc32.mak	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Fix some oversights in distprep and maintainer-clean targets.	2011-03-10 00:04:05 -05:00
Makefile.global.in	Make distprep and *clean build targets recurse into all subdirectories.	2011-07-03 13:55:27 -04:00
Makefile.shlib	Use single quotes in preference to double quotes for protecting pathnames.	2011-06-15 21:45:50 -04:00
nls-global.mk	Fix makefile logic to not break the build when xgettext is missing	2010-10-14 23:16:46 +03:00
win32.mak	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00