Release date: 2015-06-12
This release contains a small number of fixes from 9.2.12. For information about new features in the 9.2 major release, see Section E.107.
A dump/restore is not required for those running 9.2.X.
However, if you are upgrading from a version earlier than 9.2.11, see Section E.96.
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
Avoid deadlock between incoming sessions and
CREATE/DROP DATABASE (Tom Lane)
A new session starting in a database that is the target of a
DROP DATABASE command, or is the
template for a
command, could cause the command to wait for five seconds and then
fail, even if the new session would have exited before that.
If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.