Tom Lane 786afc1ce5 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 15:55:51 -05:00
..
dest.h	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
fastpath.h	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
pquery.h	Revert patch for taking fewer snapshots.	2012-11-26 15:55:51 -05:00
tcopdebug.h	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
tcopprot.h	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
utility.h	Restructure SELECT INTO's parsetree representation into CreateTableAsStmt.	2012-03-19 21:38:12 -04:00