Re: Which index methodology is better?-

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Chris Hoover" <revoohc(at)gmail(dot)com>
Cc: "PGSQL Performance" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Which index methodology is better?-
Date: 2007-11-05 19:56:29
Message-ID: 26761.1194292589@sss.pgh.pa.us
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"Chris Hoover" <revoohc(at)gmail(dot)com> writes:
> Is it better to create 3 indexes, or one index on the three columns?

This is covered in considerable detail in the fine manual:

http://www.postgresql.org/docs/8.2/static/indexes.html

See particularly sections 11.3 and 11.4

regards, tom lane

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