X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org
Received: from localhost (unknown [64.117.224.193])
	by svr1.postgresql.org (Postfix) with ESMTP id 028EA310D8E
	for <pgsql-sql-postgresql.org@localhost.postgresql.org>;
	Wed,  2 Jul 2003 00:05:00 +0000 (GMT)
Received: from svr1.postgresql.org ([64.117.224.193])
	by localhost (svr1.postgresql.org [64.117.224.193]) (amavisd-new,
	port 10024) with ESMTP id 52802-06
	for <pgsql-sql-postgresql.org@localhost.postgresql.org>;
	Tue,  1 Jul 2003 21:04:49 -0300 (ADT)
Received: from davinci.ethosmedia.com (unknown [209.10.40.251])
	by svr1.postgresql.org (Postfix) with ESMTP id 4EE92310C00
	for <pgsql-sql@postgresql.org>; Tue,  1 Jul 2003 21:04:49 -0300 (ADT)
Received: from [63.195.55.98] (HELO spooky)
	by davinci.ethosmedia.com (CommuniGate Pro SMTP 4.0.2)
	with ESMTP id 3173633; Tue, 01 Jul 2003 17:05:03 -0700
Content-Type: text/plain;
  charset="iso-8859-1"
From: Josh Berkus <josh@agliodbs.com>
Organization: Aglio Database Solutions
To: Joe Conway <mail@joeconway.com>, Greg Stark <gsstark@mit.edu>
Subject: Re: LEAST and GREATEST functions?
Date: Tue, 1 Jul 2003 17:04:26 -0700
User-Agent: KMail/1.4.3
Cc: Stefan Bill <sjb26@yahoo.com>, pgsql-sql@postgresql.org
References: <20030630201057.14507.qmail@web13905.mail.yahoo.com>
	<87d6gu2otf.fsf@stark.dyndns.tv> <3F01ED9F.3060704@joeconway.com>
In-Reply-To: <3F01ED9F.3060704@joeconway.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Message-Id: <200307011704.26768.josh@agliodbs.com>
X-Archive-Number: 200307/28
X-Sequence-Number: 14142

Joe,

> create or replace function greatest(anyelement, anyelement) returns
> anyelement as 'select case when $1 > $2 then $1 else $2 end' language
> 'sql';

Way cool.  I'd have to imagine that it would blow up if you did this, though:

select greatest ( 512, now() );

With an "Operator is not defined" error, hey?


-- 
Josh Berkus
Aglio Database Solutions
San Francisco