On Mon, Jun 1, 2009 at 10:40 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> We could certainly put in a quick hack that just covered a few of the
> cases for built-in types, but it's not very pleasing ...
Jonah proposed a patch for that a long time ago.
See http://archives.postgresql.org/pgsql-patches/2006-10/msg00154.php .
--
Guillaume