postgresql/contrib/pgrowlocks
Alvaro Herrera 0531549801 Avoid uselessly looking up old LOCK_ONLY multixacts
Commit 0ac5ad5134 removed an optimization in multixact.c that skipped
fetching members of MultiXactId that were older than our
OldestVisibleMXactId value.  The reason this was removed is that it is
possible for multixacts that contain updates to be older than that
value.  However, if the caller is certain that the multi does not
contain an update (because the infomask bits say so), it can pass this
info down to GetMultiXactIdMembers, enabling it to use the old
optimization.

Pointed out by Andres Freund in 20131121200517.GM7240@alap2.anarazel.de
2014-07-29 15:41:06 -04:00
..
Makefile Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
pgrowlocks--1.0--1.1.sql Fix typo in update scripts for some contrib modules. 2013-07-19 04:13:01 +09:00
pgrowlocks--1.1.sql Improve concurrency of foreign key locking 2013-01-23 12:04:59 -03:00
pgrowlocks--unpackaged--1.0.sql Throw a useful error message if an extension script file is fed to psql. 2011-10-12 15:45:03 -04:00
pgrowlocks.c Avoid uselessly looking up old LOCK_ONLY multixacts 2014-07-29 15:41:06 -04:00
pgrowlocks.control Improve concurrency of foreign key locking 2013-01-23 12:04:59 -03:00