Re: Does VACUUM reorder tables on clustered indices

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andrew Sullivan <ajs(at)crankycanuck(dot)ca>, PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org>
Subject: Re: Does VACUUM reorder tables on clustered indices
Date: 2005-12-30 03:25:14
Message-ID: 200512300325.jBU3PEJ25533@candle.pha.pa.us
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-hackers pgsql-sql

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Tom, has this bug been addressed or documented?
>
> No. Please add a TODO:
>
> * Make CLUSTER preserve recently-dead tuples per MVCC requirements
>
> I have not tested, but I suspect the table-rewriting variants of ALTER TABLE
> have the same problem.

Added.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Qingqing Zhou 2005-12-30 05:08:39 EINTR error in SunOS
Previous Message Tom Lane 2005-12-30 03:14:53 Re: Does VACUUM reorder tables on clustered indices

Browse pgsql-sql by date

  From Date Subject
Next Message chester c young 2006-01-01 18:19:55 plpgsql triggers in rules
Previous Message Tom Lane 2005-12-30 03:14:53 Re: Does VACUUM reorder tables on clustered indices