postgresql/doc
Tom Lane 532994299e Revert patch for taking fewer snapshots.
This reverts commit d573e239f0, "Take fewer
snapshots".  While that seemed like a good idea at the time, it caused
execution to use a snapshot that had been acquired before locking any of
the tables mentioned in the query.  This created user-visible anomalies
that were not present in any prior release of Postgres, as reported by
Tomas Vondra.  While this whole area could do with a redesign (since there
are related cases that have anomalies anyway), it doesn't seem likely that
any future patch would be reasonably back-patchable; and we don't want 9.2
to exhibit a behavior that's subtly unlike either past or future releases.
Hence, revert to prior code while we rethink the problem.
2012-11-26 15:55:43 -05:00
..
src Revert patch for taking fewer snapshots. 2012-11-26 15:55:43 -05:00
KNOWN_BUGS Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
MISSING_FEATURES Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
Makefile Add maintainer-check target 2011-03-28 22:56:52 +03:00
TODO Update URL. 2008-08-21 20:15:31 +00:00
bug.template Stamp HEAD as 9.3devel. 2012-06-13 20:03:02 -04:00