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Patch: ALTER TABLE lock strength reduction

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CommitFest 2014-01
Topic Server Features
Patch Status Committed
Author Simon Riggs
Reviewers Noah Misch
Committer Simon Riggs
Close Date 2014-04-06
Patch by simon on 2014-01-14 05:20:10 PM: Initial version.
Comment by simon on 2014-01-14 05:21:34 PM: Resubmitting original patch. Small additional patch required to solve subtle memory issue raised by Noah.
Comment by simon on 2014-01-14 05:37:51 PM: Rebased to v14
Patch by simon on 2014-01-15 02:59:22 PM: Fixed early free of tupdescs due to relcache rebuild v15
Patch by simon on 2014-01-27 09:10:08 PM: v17 with ddl_exclusive_lock GUC
Comment by simon on 2014-01-29 07:41:05 PM: Revert to v16 for review please, since ddl_exclusive_locks parameter not popular
Comment by petere on 2014-01-31 02:47:32 AM: build OK: http://pgci.eisentraut.org/jenkins/job/postgresql_commitfest_world/342/
Review by andresfreund on 2014-02-24 04:02:36 PM: Several potential issues found.
Patch by simon on 2014-03-01 11:30:02 AM: v19 resolving all issues, adding isolation tests
Patch by simon on 2014-03-10 05:05:42 PM: v22
Review by nmisch on 2014-03-21 03:47:54 AM: SET (security_barrier=x) lock level varies. Change pg_get_constraintdef() instead of adding pg_get_constraintdef_mvcc()? Cosmetic points.

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