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NOT IN (NULL) ?

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To: pgsql-general@xxxxxxxxxxxxxx
Subject: NOT IN (NULL) ?
From: "Paul" <magamos@xxxxxxx>
Date: Sun, 31 Oct 2010 21:37:28 +0500

Please, help me.
Why the condition
SELECT 5 NOT IN (NULL)
returns NULL, but not FALSE (as I thought)?

--
Paul


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