Re: EXPLAIN omits schema?

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Dave Page <dpage(at)postgresql(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: EXPLAIN omits schema?
Date: 2007-06-13 13:55:19
Message-ID: 20070613135519.GJ4640@alvh.no-ip.org
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Magnus Hagander wrote:
> On Wed, Jun 13, 2007 at 08:47:30AM -0400, Alvaro Herrera wrote:
> > Magnus Hagander wrote:
> >
> > > Just to open a whole new can of worms ;-)
> > >
> > > I read an article a couple of days ago about the "machine readable showplan
> > > output" in SQL Server 2005 (basically, it's EXPLAIN output but in XML
> > > format). It does make a lot of sense if yourp rimary interface is !=
> > > commandline (psql), such as pgadmin or phppgadmin. The idea being that you
> > > can stick in *all* the details you want, since you can't possibly clutter
> > > up the display. And you stick them in a well-defined XML format (or another
> > > format if you happen to hate XML) where the client-side program can easily
> > > parse out whatever it needs. It's also future-proof - if you add a new
> > > field somewhere, the client program parser won't break.
> > >
> > > Something worth doing? Not to replace the current explain output, but as a
> > > second option (EXPLAIN XML whatever)?
> >
> > FYI a patch was posted for this some time ago, because a friend of mine
> > wanted to help a student to write an EXPLAIN parsing tool.
>
> Didn't see that one. Explain in XML format? Got an URL for it, I can't seem
> to find it on -patches.

I can't find the patch itself ... maybe he didn't ever post it. He last
talked about it here:
http://archives.postgresql.org/pgsql-hackers/2006-04/msg00455.php

BTW can I bug you to add the Message-Ids in the messages as displayed in
our archives?

--
Alvaro Herrera http://www.PlanetPostgreSQL.org/
"El día que dejes de cambiar dejarás de vivir"

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