Hans-Juergen Schoenig wrote:
> we agreed on the view solution as people thought that this would be
> better and less intrusive. I was also in favour of the syntax your
> described below but people voted for the view solution which has been
> fully implemented by this patch.
> Btw, it seems to be stable - it has been in production at a customer
> for quite a while now.
See this recent thread:
http://archives.postgresql.org/pgsql-hackers/2006-06/msg00055.php
cheers
andrew