Re: Best way to index large text/varchar fields

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Chris Hoover <revoohc(at)gmail(dot)com>
Cc: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Best way to index large text/varchar fields
Date: 2006-06-09 16:24:47
Message-ID: 4489A0CF.2080309@commandprompt.com
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Chris Hoover wrote:
> In 8.1, what is the best way to index large text/varchar fields for wild
> card searches?
>
> I am getting good number of queries being submitted for reporting
> purposes that are doing the following - where <text/varchar field> like
> '%some phrase%' and ....
> Is there a good way to index these fields so that the db engine will use
> and index?

If you are indeed using phrases, and thus paragraphs of text, you should
look into Tsearch2.

Joshua D. Drake

>
> Thanks,
>
> Chris

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