PostgreSQL 8.4.14 Documentation
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# E.146. Release 7.3.19

> Release date: 2007-04-23

This release contains fixes from 7.3.18, including a security fix.

## E.146.1. Migration to Version 7.3.19

A dump/restore is not required for those running 7.3.X. However, if you are upgrading from a version earlier than 7.3.13, see the release notes for 7.3.13.

## E.146.2. Changes

- Support explicit placement of the temporary-table schema within `search_path`, and disable searching it for functions and operators (Tom)

  This is needed to allow a security-definer function to set a truly secure value of `search_path`. Without it, an unprivileged SQL user can use temporary objects to execute code with the privileges of the security-definer function (CVE-2007-2138). See `CREATE FUNCTION` for more information.

- Fix potential-data-corruption bug in how `VACUUM FULL` handles `UPDATE` chains (Tom, Pavan Deolasee)

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