Release 8.1.9
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Release date: 2007-04-23
This release contains a variety of fixes from 8.1.8, including a security fix. For information about new features in the 8.1 major release, see Section E.223 .
E.214.1. Migration to Version 8.1.9
A dump/restore is not required for those running 8.1.X. However, if you are upgrading from a version earlier than 8.1.2, see Section E.221 .
E.214.2. 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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Require COMMIT PREPARED to be executed in the same database as the transaction was prepared in (Heikki)
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Fix potential-data-corruption bug in how VACUUM FULL handles UPDATE chains (Tom, Pavan Deolasee)
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Planner fixes, including improving outer join and bitmap scan selection logic (Tom)
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Fix PANIC during enlargement of a hash index (bug introduced in 8.1.6) (Tom)
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Fix POSIX-style timezone specs to follow new USA DST rules (Tom)