pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Craig Ringer <craig@postnewspapers.com.au>
To: Jasmin Dizdarevic <jasmin.dizdarevic@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Performance of NOT IN and <> with PG 9.0.4
Date: Mon, 16 May 2011 19:06:27 +0800
Message-ID: <4DD10533.7050904@postnewspapers.com.au> (raw)
In-Reply-To: <BANLkTimo9PG9r+pP-wxT=Amk79G_UmtCwg@mail.gmail.com>
References: <BANLkTimo9PG9r+pP-wxT=Amk79G_UmtCwg@mail.gmail.com>

On 05/16/2011 06:05 PM, Jasmin Dizdarevic wrote:
> Hi,
>
> is there a reason why Not IN-performance is so poor in 9.0.4 compared to
> 8.4?

Example queries?

EXPLAIN ANALYZE output?

http://wiki.postgresql.org/wiki/SlowQueryQuestions

--
Craig Ringer



view thread (10+ messages)  latest in thread

Message-ID: <4DD10533.7050904@postnewspapers.com.au>
Permalink:  ../4DD10533.7050904@postnewspapers.com.au/
Also on:    postgresql.org/message-id/4DD10533.7050904@postnewspapers.com.au

 · 

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-sql@postgresql.org
  Cc: craig@postnewspapers.com.au, jasmin.dizdarevic@gmail.com
  Subject: Re: Performance of NOT IN and <> with PG 9.0.4
  In-Reply-To: <4DD10533.7050904@postnewspapers.com.au>

* 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