PostgreSQL 8.4.7 Documentation
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# E.140. Release 7.3.8

> Release date: 2004-10-22

This release contains a variety of fixes from 7.3.7.

## E.140.1. Migration to Version 7.3.8

A dump/restore is not required for those running 7.3.X.

## E.140.2. Changes

- Repair possible failure to update hint bits on disk

  Under rare circumstances this oversight could lead to "could not access transaction status" failures, which qualifies it as a potential-data-loss bug.

- Ensure that hashed outer join does not miss tuples

  Very large left joins using a hash join plan could fail to output unmatched left-side rows given just the right data distribution.

- Disallow running pg_ctl as root

  This is to guard against any possible security issues.

- Avoid using temp files in /tmp in make_oidjoins_check

  This has been reported as a security issue, though it's hardly worthy of concern since there is no reason for non-developers to use this script anyway.

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