Another use of check (a is not null)

Lists: pgsql-hackers
From: "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
To: "Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Another use of check (a is not null)
Date: 2002-09-03 03:13:51
Message-ID: GNELIHDDFBOCMGBFGEFOGEAFCEAA.chriskl@familyhealth.com.au
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Lists: pgsql-hackers

If we got rid of the other NOT NULL != CHECK (a IS NOT NULL) instance, may
as well get rid of the one on this page:

http://developer.postgresql.org/docs/postgres/sql-createdomain.html

Chris