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Date: Tue, 7 Feb 2012 23:39:44 -0800 (PST)
From: ssylla <stefansylla@gmx.de>
To: pgsql-sql@postgresql.org
Message-ID: <1328686784550-5465796.post@n5.nabble.com>
Subject: update multiple columns with multiple values
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Dear list,

I am trying to update all rows of a column ('parent') based on a subquery
that returns me the first four digits of another column ('id'):



After executing, I get the following error-message:



I am not quite sure about that, but maybe I need to construct a function to
fulfill this task?

thanks for help.

Stefan

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