To: "Christian Paul Cosinas" <cpc@cybees.com>,
 pgsql-performance@postgresql.org
Subject: Re: Speed Up Offset and Limit Clause
References: <002801c67509$8f1a51a0$1e21100a@ghwk02002147>
Message-ID: <op.s9dkn6lycigqcu@apollo13>
From: PFC <lists@peufeu.com>
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Date: Thu, 11 May 2006 09:05:56 +0200
In-Reply-To: <002801c67509$8f1a51a0$1e21100a@ghwk02002147>
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	Why do you want to use it this way ?
	Explain what you want to do, there probably is another faster solution...

On Thu, 11 May 2006 16:45:33 +0200, Christian Paul Cosinas  
<cpc@cybees.com> wrote:

> Hi!
>
> How can I speed up my server's performance when I use offset and limit
> clause.
>
> For example I have a query:
> SELECT * FROM table ORDER BY id, name OFFSET 100000 LIMIT 10000
>
> This query takes a long time about more than 2 minutes.
>
> If my query is:
> SELECT * FROM table ORDER BY id, name OFFSET 50000 LIMIT 10000
> It takes about 2 seconds.
>
> Thanks
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
>        choose an index scan if your joining column's datatypes do not
>        match