The following bug has been logged online:
Bug reference: 1649
Logged by: Nicholas Vinen
Email address: hb(at)pg(dot)x256(dot)org
PostgreSQL version: 8.0.1
Operating system: Gentoo Linux
Description: Date calculation year off-by-one error
Details:
This is definitely not right:
rt3=# SELECT date_trunc('week', timestamp with time zone '2005-01-02
00:00:00-7');
date_trunc
------------------------
2006-01-02 00:00:00-08
(1 row)