SQL -select count-

From: "Giannis" <ogiannhs(at)yahoo(dot)gr>
To: <pgsql-sql(at)postgresql(dot)org>
Subject: SQL -select count-
Date: 2002-11-19 17:06:57
Message-ID: 00cf01c28fee$144d8bd0$dd4186c3@edunet.uoa.gr
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when I do :

select count(column_name) from table_name

should I get the count for all columns or just those which are not null?
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