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Re: seqscan instead of index scan

From: Bruno Wolff III <bruno(at)wolff(dot)to>
To: Martin Sarsale <martin(at)emepe3(dot)net>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: seqscan instead of index scan
Date: 2004-08-30 19:18:05
Message-ID: 20040830191805.GA1521@wolff.to (view raw or flat)
Thread:
Lists: pgsql-performance
On Mon, Aug 30, 2004 at 15:07:15 -0300,
  Martin Sarsale <martin(at)emepe3(dot)net> wrote:
> 
> With combined index, you mean a multiple column index?
> From
> http://www.postgresql.org/docs/7.4/interactive/indexes-multicolumn.html

You are right, a multicolumn index doesn't help for 'or'.

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Subject: Re: Why does a simple query not use an obvious index?
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