Re: COALESCE and NULLIF semantics

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: COALESCE and NULLIF semantics
Date: 2009-09-09 12:13:32
Message-ID: 1252498412.15729.9.camel@fsopti579.F-Secure.com
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On Tue, 2009-09-08 at 13:18 -0500, Kevin Grittner wrote:
> As a quick sample of something which I believe implements the correct
> semantics for COALESCE and NULLIF, see the functions below.

You might want to show before and after, so it's clear what you are
suggesting to change.

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