Re: help needed -- sequential scan problem

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Cc: sarlav kumar <sarlavk(at)yahoo(dot)com>
Subject: Re: help needed -- sequential scan problem
Date: 2004-11-22 19:57:38
Message-ID: 200411221157.38900.josh@agliodbs.com
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Sarlav,

> I am sorry, I am not aware of what random_page_cost is, as I am new to
> Postgres. What does it signify and how do I reduce random_page_cost?

It's a parameter in your postgresql.conf file. After you test it, you will
want to change it there and reload the server (pg_ctl reload).

However, you can test it on an individual connection:
SET random_page_cost=2.5
(the default is 4.0)

--
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco

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