Log Message:
Changes 8.0.9:
* Fix crash when referencing NEW row values in rule WHERE expressions
  (Tom)
* Fix core dump when an untyped literal is taken as ANYARRAY
* Fix mishandling of AFTER triggers when query contains a SQL
  function returning multiple rows (Tom)
* Fix "ALTER TABLE ... TYPE" to recheck NOT NULL for USING clause
  (Tom)
* Fix string_to_array() to handle overlapping matches for the
  separator string
  For example, string_to_array('123xx456xxx789', 'xx').
* Fix corner cases in pattern matching for psql's \d commands
* Fix index-corrupting bugs in /contrib/ltree (Teodor)
* Numerous robustness fixes in ecpg (Joachim Wieland)
* Fix backslash escaping in /contrib/dbmirror
* Fix instability of statistics collection on Win32 (Tom, Andrew)
* Fixes for AIX and Intel compilers (Tom)