From: Richard Broersma Jr <rabroersma@yahoo.com>
To: SQL Postgresql List <pgsql-sql@postgresql.org>
Subject: Joe Celko's method to "generate_series" not working?
Date: Wed, 2 May 2007 17:17:07 -0700 (PDT)
Message-ID: <649296.88043.qm@web31815.mail.mud.yahoo.com> (raw)
Well, I am about a book and a-half away from reading all of the Joe Celko's books that I know of.
I just came across an nice looking way to generate a series using a set oriented construct.
However, I am not able to get it to work in PostgreSQL.
The method follows from the SQL Programming Style p.164:
SELECT hundred * 100 + ten * 10 + unit + 1
FROM ( VALUES( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)) AS Units( unit )
CROSS JOIN
( VALUES( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)) AS Tens( ten )
CROSS JOIN
( VALUES( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)) AS Hundreds( hundred );
but I am getting:
?column?
----------
1
(1 row)
which isn't close to the 1000 rows that I am expecting.
Is Mr. Celko mistaken? Does anyone know if PostgreSQL has any functions that I can turn these
VALUES rows into columns so that the CROSS JOINS will work?
Regards,
Richard Broersma Jr.
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To: pgsql-sql@postgresql.org
Cc: rabroersma@yahoo.com
Subject: Re: Joe Celko's method to "generate_series" not working?
In-Reply-To: <649296.88043.qm@web31815.mail.mud.yahoo.com>
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