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From: jack <datactrl@tpg.com.au>
To: pgsql-sql@postgresql.org
Subject: quastions about primary key
Date: Fri, 24 Jan 2003 16:44:59 +1000
Message-ID: <00c301c2c374$1e698650$1400a8c0@jac> (raw)

Is that possible to have a two columns primary key on a table with null
value on second column?

Jack




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