Release 7.4.17
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Release Date: 2007-04-23
This release contains fixes from 7.4.16, including a security fix. For information about new features in the 7.4 major release, see Section E.249 .
E.232.1. Migration to Version 7.4.17
A dump/restore is not required for those running 7.4.X. However, if you are upgrading from a version earlier than 7.4.11, see Section E.238 .
E.232.2. Changes
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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.
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/contrib/tsearch2 crash fixes (Teodor)
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Fix potential-data-corruption bug in how VACUUM FULL handles UPDATE chains (Tom, Pavan Deolasee)
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Fix PANIC during enlargement of a hash index (bug introduced in 7.4.15) (Tom)