Performing antijoin in postgres

From: Suresh_ <suiyengar(at)yahoo(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Performing antijoin in postgres
Date: 2007-08-31 08:28:21
Message-ID: 12422596.post@talk.nabble.com
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I want to add an antijoin operator to PostgreSql. Basically I want to store
the result (tupletableslot) of one join and then compare it with
another..How do I store these results and how do I compare them ?
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