Except without elimination of non-distinct rows

From: "Ray Madigan" <ray(at)madigans(dot)org>
To: "Pgsql-Sql" <pgsql-sql(at)postgresql(dot)org>
Subject: Except without elimination of non-distinct rows
Date: 2008-02-05 02:16:07
Message-ID: IIEPJABILGOCODDLDNJFCEPECGAA.ray@madigans.org
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Is there any way to use except that won't remove the non-distinct rows from
the left side of the query?

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