pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Heikki Linnakangas <heikki@enterprisedb.com>
To: Douglas J Hunley <doug@hunley.homeip.net>
Cc: Gregory Stark <stark@enterprisedb.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: upgraded to pgsql 8.2.4, getting worse performance then 7.4.x
Date: Mon, 04 Jun 2007 22:17:03 +0100
Message-ID: <4664814F.4050109@enterprisedb.com> (raw)
In-Reply-To: <87ps4bl91g.fsf@oxford.xeocode.com>
References: <200706020913.32241.doug@hunley.homeip.net>
	<20070602152141.GA38653@winnie.fuhr.org>
	<200706041601.08918.doug@hunley.homeip.net>
	<87ps4bl91g.fsf@oxford.xeocode.com>

Gregory Stark wrote:
> Those plans look like they have a lot of casts to text in them. How have you
> defined your indexes? Are your id columns really text?

And did you use the same encoding and locale? Text operations on 
multibyte encodings are much more expensive.

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com



view thread (24+ messages)  latest in thread

Message-ID: <4664814F.4050109@enterprisedb.com>
Permalink:  ../4664814F.4050109@enterprisedb.com/
Also on:    postgresql.org/message-id/4664814F.4050109@enterprisedb.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: heikki@enterprisedb.com, doug@hunley.homeip.net, stark@enterprisedb.com
  Subject: Re: upgraded to pgsql 8.2.4, getting worse performance then 7.4.x
  In-Reply-To: <4664814F.4050109@enterprisedb.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox