## E.340. Release 7.4.10

Release date: 2005-12-12

This release contains a variety of fixes from 7.4.9. For information about new features in the 7.4 major release, see Section E.350.

### E.340.1. Migration to Version 7.4.10

A dump/restore is not required for those running 7.4.X. However, if you are upgrading from a version earlier than 7.4.8, see Section E.342.

### E.340.2. 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.

- Prevent failure if client sends Bind protocol message when current transaction is already aborted

- `/contrib/ltree` fixes (Teodor)

- AIX and HPUX compile fixes (Tom)

- 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