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To: pgsql-sql@postgresql.org
From: Simon Law <simonslaw@gmail.com>
Subject: SQL output
Date: Mon, 15 Aug 2005 19:55:20 -0400
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CREATE TABLE tablename (field INTERVAL);

INSERT INTO tablename VALUES('3 weeks');

SELECT field FROM tablename;
_________
|     field      |
|--------------|
|   21 days |
|________|

The output   shows up in days or months but not weeks how do i make  
it output in weeks?
Any help with this will be greatly appreciated

P.S.
Best postgresql book?