PostgreSQL 8.4.17 Documentation
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# E.158. Release 7.3.12

> Release date: 2005-12-12

This release contains a variety of fixes from 7.3.11.

## E.158.1. Migration to Version 7.3.12

A dump/restore is not required for those running 7.3.X. However, if you are upgrading from a version earlier than 7.3.10, see the release notes for 7.3.10.

## E.158.2. Changes

- Fix race condition in transaction log management

  There was a narrow window in which an I/O operation could be initiated for the wrong page, leading to an Assert failure or data corruption.

- `/contrib/ltree` fixes (Teodor)

- Fix longstanding planning error for outer joins

  This bug sometimes caused a bogus error "RIGHT JOIN is only supported with merge-joinable join conditions".

- Prevent core dump in pg_autovacuum when a table has been dropped

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