Re: constraint via selection

From: Horst Herb <hherb(at)malleenet(dot)net(dot)au>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: constraint via selection
Date: 2001-11-17 13:00:57
Message-ID: 20011117125544.6028.qmail@gnumed.dhs.org
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> What would the most efficient formulation of the "check" constraint be
> in this case?

Sorry, I probably should reformulate my question into "is there a more
effficient constraint than a foreign key constraint for this simple
problem"?

Horst

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