Skip site navigation (1) Skip section navigation (2)

Re: Self-generating statistics?

From: Andrew Sullivan <andrew(at)libertyrms(dot)info>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Self-generating statistics?
Date: 2002-10-21 13:00:25
Message-ID: 20021021090025.B14840@mail.libertyrms.com (view raw or flat)
Thread:
Lists: pgsql-performance
On Mon, Oct 21, 2002 at 08:23:33AM +0200, Mario Weilguni wrote:
> Something that might be worth considering:
> 
> Many of the performance problems on pgsql-general seem to be
> related to the fact that no analyze is performed after the creation
> on the tables, so maybe this might be an option to fix that (in
> future releases): when a table has no statistics at all, and the
> first seq-scan on the table is

It's never the case that a table has no statistics at all.  It has
default ones.  Maybe they're right; it's hard to know.

Someone has posted on gborg an anto-vacuum daemon that might be of
use in this situation.

A

-- 
----
Andrew Sullivan                         204-4141 Yonge Street
Liberty RMS                           Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info>                              M2P 2A8
                                         +1 416 646 3304 x110


In response to

pgsql-performance by date

Next:From: Andrew SullivanDate: 2002-10-21 14:16:21
Subject: Re: Default cost variables in postgresql.conf
Previous:From: Neil ConwayDate: 2002-10-21 07:34:56
Subject: Re: Self-generating statistics?

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group