Re: How can I speed up this query?

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От Martijn van Oosterhout
Тема Re: How can I speed up this query?
Дата
Msg-id 20060628080511.GB29253@svana.org
обсуждение исходный текст
Ответ на How can I speed up this query?  ("Pat Maddox" <pergesu@gmail.com>)
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On Wed, Jun 28, 2006 at 01:52:10AM -0600, Pat Maddox wrote:
> I end up calling this query quite often, so I need a way to speed it
> up.  Don't know if I can take advantage of indexes or better joins or
> something (I don't even know if there are better joins), I'm really a
> newbie to DB stuff.  Hoping somebody can help me make this much
> quicker.

<snip>
>               ->  Index Scan using
> trainer_hand_results_trainer_scenario_id_index on trainer_hand_results
> r  (cost=0.00..19.12 rows=570 width=44) (actual time=415.677..420.197
> rows=578 loops=1)

That's an awful long time to find a few rows in a table via an index.
How big is this table/index?

What version is this? If you have a older version perhaps you're
suffering from index bloat and you need to REINDEX that table/index.

Hope this helps,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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