back references using regex

From: Matthew Peter <survivedsushi(at)yahoo(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: back references using regex
Date: 2005-09-07 06:40:18
Message-ID: 20050907064019.99742.qmail@web35213.mail.mud.yahoo.com
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Hi.

I'm trying to do a slice directly from a table so I
can get a brief preview of the articles content by
counting \s (spaces), not new paragraphs.

Anyone know how it could be done using regular
expressions natively? I read the doc but it didn't
help me much.

Many thanks.
MP



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