PostgreSQL 8.4.22lts6 Documentation | ||||
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Release Date: 2015-06-15
This release contains a small number of fixes from 8.4.22lts3, adopted from the 9.0.22 release. For information about new features in the 8.4 major release, see Section E.28.
The PostgreSQL community has stopped releasing updates for the 8.4.X release series in July 2014. This update is a Long-Term-Support (LTS) community effort by credativ GmbH and not an official release by the PostgreSQL community.
A dump/restore is not required for those running 8.4.X.
However, if you are upgrading from a version earlier than 8.4.22, see Section E.6.
Fix rare failure to invalidate relation cache init file (Tom Lane)
With just the wrong timing of concurrent activity, a VACUUM FULL on a system catalog might fail to update the "init file" that's used to avoid cache-loading work for new sessions. This would result in later sessions being unable to access that catalog at all. This is a very ancient bug, but it's so hard to trigger that no reproducible case had been seen until recently.