Prevent possible loss of committed transactions during crash

Due to insufficient interlocking between transaction commit and checkpointing, it was possible for transactions committed just before the most recent checkpoint to be lost, in whole or in part, following a database crash and restart. This is a serious bug that has existed since PostgreSQL 7.1.

Check HAVING restriction before evaluating result list of an aggregate plan

Avoid crash when session's current user ID is deleted

Fix hashed crosstab for zero-rows case (Joe)

Force cache update after renaming a column in a foreign key

Pretty-print UNION queries correctly

Make psql handle \r\n newlines properly in COPY IN

pg_dump handled ACLs with grant options incorrectly

Fix thread support for OS X and Solaris

Updated JDBC driver (build 215) with various fixes

ECPG fixes

Translation updates (various contributors)