From: Shaun Thomas <sthomas@peak6.com>
To: Marti Raudsepp <marti@juffo.org>
Cc: Magnus Hagander <magnus@hagander.net>
Cc: Svetlin Manavski <svetlin.manavski@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: seq scan in the case of max() on the primary key column
Date: Wed, 22 Jun 2011 08:12:45 -0500
Message-ID: <4E01EA4D.3080205@peak6.com> (raw)
In-Reply-To: <BANLkTim5saGCxhLCAx4nEUQ4tZuOSy65fg@mail.gmail.com>
References: <BANLkTikntdSrhneCPzPutY9T-sAQpFXTMw@mail.gmail.com>
<BANLkTikuFEyOse=sUoH0BXYrpUW=7Pp_tw@mail.gmail.com>
<4DFA4D2F.8020101@peak6.com>
<BANLkTim5saGCxhLCAx4nEUQ4tZuOSy65fg@mail.gmail.com>
On 06/22/2011 04:55 AM, Marti Raudsepp wrote:
> With Jim Nasby's idea to use regclass instead of relation names, the
> function is now half its length and probably more reliable. There's no
> need to touch pg_class directly at all.
Sadly until we upgrade to EDB 9.0, I have to use my function. :) EDB 8.3
(which is really PostgreSQL 8.2) doesn't have a regclass->text
conversion. But I'll bookmark the wiki page anyway, so I can update my
function after upgrading. Heh.
--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 800 | Chicago IL, 60604
312-676-8870
sthomas@peak6.com
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To: pgsql-performance@postgresql.org
Cc: sthomas@peak6.com, marti@juffo.org, magnus@hagander.net, svetlin.manavski@gmail.com
Subject: Re: seq scan in the case of max() on the primary key column
In-Reply-To: <4E01EA4D.3080205@peak6.com>
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