Heikki Linnakangas d59ff6c110 Fix bug in determining when recovery has reached consistency. ... When starting WAL replay from an online checkpoint, the last replayed WAL record variable was initialized using the checkpoint record's location, even though the records between the REDO location and the checkpoint record had not been replayed yet. That was noted as "slightly confusing" but harmless in the comment, but in some cases, it fooled CheckRecoveryConsistency to incorrectly conclude that we had already reached a consistent state immediately at the beginning of WAL replay. That caused the system to accept read-only connections in hot standby mode too early, and also PANICs with message "WAL contains references to invalid pages". Fix by initializing the variables to the REDO location instead. In 9.2 and above, change CheckRecoveryConsistency() to use lastReplayedEndRecPtr variable when checking if backup end location has been reached. It was inconsistently using EndRecPtr for that check, but lastReplayedEndRecPtr when checking min recovery point. It made no difference before this patch, because in all the places where CheckRecoveryConsistency was called the two variables were the same, but it was always an accident waiting to happen, and would have been wrong after this patch anyway. Report and analysis by Tomonari Katsumata, bug #8686. Backpatch to 9.0, where hot standby was introduced.		2014-01-08 15:03:09 +02:00
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access	Fix bug in determining when recovery has reached consistency.	2014-01-08 15:03:09 +02:00
bootstrap	Update copyright for 2014	2014-01-07 16:05:30 -05:00
catalog	Update copyright for 2014	2014-01-07 16:05:30 -05:00
commands	Update copyright for 2014	2014-01-07 16:05:30 -05:00
executor	Update copyright for 2014	2014-01-07 16:05:30 -05:00
foreign	Update copyright for 2014	2014-01-07 16:05:30 -05:00
lib	Update copyright for 2014	2014-01-07 16:05:30 -05:00
libpq	Update copyright for 2014	2014-01-07 16:05:30 -05:00
main	Update copyright for 2014	2014-01-07 16:05:30 -05:00
nodes	Update copyright for 2014	2014-01-07 16:05:30 -05:00
optimizer	Update copyright for 2014	2014-01-07 16:05:30 -05:00
parser	Update copyright for 2014	2014-01-07 16:05:30 -05:00
po	Translation updates	2013-12-02 00:17:07 -05:00
port	Update copyright for 2014	2014-01-07 16:05:30 -05:00
postmaster	Update copyright for 2014	2014-01-07 16:05:30 -05:00
regex	Update copyright for 2014	2014-01-07 16:05:30 -05:00
replication	Update copyright for 2014	2014-01-07 16:05:30 -05:00
rewrite	Update copyright for 2014	2014-01-07 16:05:30 -05:00
snowball	Update copyright for 2014	2014-01-07 16:05:30 -05:00
storage	Update copyright for 2014	2014-01-07 16:05:30 -05:00
tcop	Update copyright for 2014	2014-01-07 16:05:30 -05:00
tsearch	Update copyright for 2014	2014-01-07 16:05:30 -05:00
utils	Update copyright for 2014	2014-01-07 16:05:30 -05:00
.gitignore	Add gitignore for mingw/cygwin build outputs	2011-06-09 18:11:47 +02:00
common.mk	Remove maintainer-check target, fold into normal build	2013-10-10 20:11:56 -04:00
Makefile	Update copyright for 2014	2014-01-07 16:05:30 -05:00
nls.mk	Add libpgcommon to backend gettext source files	2013-10-19 13:49:05 -04:00