Re: partial indexed not being used.

From: Michael Fuhr <mike(at)fuhr(dot)org>
To: Ron Arts <ron(dot)arts(at)neonova(dot)nl>
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: partial indexed not being used.
Date: 2007-02-12 02:42:45
Message-ID: 20070212024245.GA11481@winnie.fuhr.org
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-novice

On Sun, Feb 11, 2007 at 07:27:29PM -0700, Michael Fuhr wrote:
> If using the index would be slower than a sequential scan then you
> don't want the query to use the index. Let's see how accurate the
> row count estimates are and whether using an index really would be
> faster -- please post the output of the following queries:

Also, what's your hardware configuration and what non-default
settings do you have in postgresql.conf? In particular, how much
memory do you have and what values do you have for shared_buffers,
effective_cache_size, work_mem, and random_page_cost?

--
Michael Fuhr

In response to

Browse pgsql-novice by date

  From Date Subject
Next Message Oscar Alberto Chavarria Marin 2007-02-12 03:16:36 Problem adding columns
Previous Message Michael Fuhr 2007-02-12 02:27:29 Re: partial indexed not being used.