triggers

From: Dennis Gearon <gearond(at)cvc(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: triggers
Date: 2003-02-25 20:17:27
Message-ID: D0BATQ83LHXUGD2HCLK4X41GB1VA7RO.3e5bcf57@cal-lab
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are 'before' triggers or 'after' triggers more common?

Why?

What's the benefits, problems with each?

Can a function in a trigger lock a table? Or is it just sessions that can lock a table?

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