Check sum function

From: "cristi" <cristi(at)dmhi(dot)ct(dot)ro>
To: <pgsql-novice(at)postgresql(dot)org>
Subject: Check sum function
Date: 2002-12-07 06:05:48
Message-ID: 004401c29db6$b0ee2140$7201a8c0@aaa
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Hi!
I want to make a field in a table which is check sum of the the content of
others fields.
Is in the postgres a function in this sens?

Thanks!

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