Re: Rewrite, normal execution vs. EXPLAIN ANALYZE

From: Andres Freund <andres(at)anarazel(dot)de>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi>, David Fetter <david(at)fetter(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Rewrite, normal execution vs. EXPLAIN ANALYZE
Date: 2010-07-23 19:46:15
Message-ID: 20100723194615.GA3023@anarazel.de
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On Fri, Jul 23, 2010 at 03:30:03PM -0400, Robert Haas wrote:
> On Fri, Jul 23, 2010 at 3:19 PM, Marko Tiikkaja
> <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi> wrote:
> > This may be a bit hard to follow, but essentially what happens is that in
> > EXPLAIN ANALYZE, the INSERT in the rule does not see the changes made by T2
> > to baz while in the regular execution scenario it does.
>
> Well that's gotta be a bug, but in what I'm not sure.
One could argue that its less of a semantic change changing explain's
behaviour than the normal executors way of working...

Andres

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