Re: Slow first query despite LIMIT and OFFSET clause

From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
To: Phoenix Kiula <phoenix(dot)kiula(at)gmail(dot)com>
Cc: PG-General Mailing List <pgsql-general(at)postgresql(dot)org>
Subject: Re: Slow first query despite LIMIT and OFFSET clause
Date: 2009-01-26 07:07:35
Message-ID: dcc563d10901252307p1c215f32s23fb6fe52beeaacd@mail.gmail.com
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On Mon, Jan 26, 2009 at 12:06 AM, Phoenix Kiula <phoenix(dot)kiula(at)gmail(dot)com> wrote:
> On Mon, Jan 26, 2009 at 3:04 PM, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> wrote:
>> On Sun, Jan 25, 2009 at 11:58 PM, Phoenix Kiula <phoenix(dot)kiula(at)gmail(dot)com> wrote:
>>> Hi Scott. Yes, there is an autovacuum on both the tables. Should i
>>> additionally do a manual vacuum too?
>>
>> Nah, just an analyze. what version of pgsql is this, btw?
>>
>
>
> Actually both vacuum and analyze happen at regular intervals. Are they
> not doing their job?

Hard to say. You could try increasing your stats target on the fields
where the approximation is way off.

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