From: | Ian Lea <ian(dot)lea(at)gmail(dot)com> |
---|---|
To: | pgsql-admin(at)postgresql(dot)org |
Subject: | Re: How to increase postgresql performance |
Date: | 2010-02-02 11:00:22 |
Message-ID: | 8c4e68611002020300t37c78ef0jc6a0d211cd95b8ef@mail.gmail.com |
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Lists: | pgsql-admin |
And maybe make sure that the id column is indexed, and see what
EXPLAIN says. http://wiki.postgresql.org/wiki/Using_EXPLAIN
--
Ian.
On Tue, Feb 2, 2010 at 10:56 AM, Bret S. Lambert <bret(dot)lambert(at)gmail(dot)com> wrote:
> On Tue, Feb 02, 2010 at 11:51:57AM +0100, fida aljounaidi wrote:
>> Hi
>>
>> I have an sql query which takes 20 seconds to be executed.
>>
>> this sql query contain more than 870 id under the select where in ()
>> condition.
>
> Add a column to the table which denotes the characteristic that those
> 870 ids share, and select based on that?
>
>>
>> So , it is not a large row result but a big list of conditions to be
>> crossed.
>>
>> I'm using postgresql 8.4.
>>
>> Thanks for help
>
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