Re: large database on postgres

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От Tony Carter
Тема Re: large database on postgres
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Msg-id DJEGLLPNDIAAIGPJHAALCEEBDFAA.tony@iat.net
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Ответ на Re: large database on postgres  (Stephan Szabo <sszabo@megazone23.bigpanda.com>)
Список pgsql-general
Stephan,
Here is more info. I don't have access to the server right now, I'll do the
explain analyze later.


table:stock_history

name    type
------------------------------
id    int         not null pk
name    varchar 250  not null  index

sql statement:

    select id from stock_history where name = "quest";
    takes about 2 minutes.


TIA,
Tony





-----Original Message-----
From: Stephan Szabo [mailto:sszabo@megazone23.bigpanda.com]
Sent: Friday, June 14, 2002 5:17 PM
To: Tony Carter
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] large database on postgres


On Thu, 13 Jun 2002, Tony Carter wrote:

> Hello,
> I have one application that I'm trying to move the db to pgsql. The db
> contains around 15 million rows of data. I'm running into 10 second delays
> when doing a simple select on an index column.
>
> My test box is Linux 1ghz Celeron  25MB Ram, 7200rpm IDE drive. I know I
> need SCSI but is there any tuning I can do to speed this up?

Well, let's do the standard info requests :)
Have you used vacuum analyze?  What's the schema, query, and explain (or
explain analyze if you're using 7.2) output for the query.


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