Log Message:
Changes 8.3.5:
* Fix GiST index corruption due to marking the wrong index entry
  "dead" after a deletion.
  This would result in index searches failing to find rows they
  should have found.
* Fix backend crash when the client encoding cannot represent a
  localized error message.
  We have addressed similar issues before, but it would still fail if
  the "character has no equivalent" message itself couldn't be
  converted. The fix is to disable localization and send the plain
  ASCII error message when we detect such a situation.
* Fix possible crash in bytea-to-XML mapping.
* Fix possible crash when deeply nested functions are invoked from a
  trigger.
* Improve optimization of "expression" IN \ 
("expression-list") queries.
* Fix mis-expansion of rule queries when a sub-SELECT appears in a
  function call in FROM, a multi-row VALUES list, or a RETURNING list.
* Fix Assert failure during rescan of an IS NULL search of a GiST
  index.
* Fix memory leak during rescan of a hashed aggregation plan.
* Ensure an error is reported when a newly-defined PL/pgSQL trigger
  function is invoked as a normal function.
* Force a checkpoint before "CREATE DATABASE" starts to copy files.
* Prevent possible collision of relfilenode numbers when moving a
  table to another tablespace with "ALTER SET TABLESPACE".
* Fix incorrect text search headline generation when single query
  item matches first word of text.
* Fix improper display of fractional seconds in interval values when
  using a non-ISO datestyle in an "--enable-integer-datetimes" build.
* Make ILIKE compare characters case-insensitively even when they're
  escaped.
* Ensure "DISCARD" is handled properly by statement logging.
* Fix incorrect logging of last-completed-transaction time during
  PITR recovery.
* Ensure SPI_getvalue and SPI_getbinval behave correctly when the
  passed tuple and tuple descriptor have different numbers of columns.
* Mark SessionReplicationRole as PGDLLIMPORT so it can be used by
  Slony on Windows.
* Fix small memory leak when using libpq's gsslib parameter.
* Ensure libgssapi is linked into libpq if needed.
* Fix ecpg's parsing of "CREATE ROLE".
* Fix recent breakage of pg_ctl restart.
* Ensure "pg_control" is opened in binary mode.
* Update time zone data files to tzdata release 2008i (for DST law
  changes in Argentina, Brazil, Mauritius, Syria)