Here is a link to a discussion on pgsql-hackers(at)postgresql(dot)org about the subject, in case that could help:
http://archives.postgresql.org/pgsql-hackers/2010-01/msg00170.php
Here is a link to a discussion on pgsql-hackers( at)postgresql( dot)org about the subject, in case that could help:
http:// archives. postgresql. org/pgsql- hackers/ 2010-01/ msg00170. php