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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Traci Sumpter <Traci.Sumpter@opus.co.nz>
Cc: pgsql-sql@postgresql.org
Subject: Re: Defining Field Types with view
Date: Wed, 01 Sep 2004 18:41:25 -0400
Message-ID: <10958.1094078485@sss.pgh.pa.us> (raw)
In-Reply-To: <KFEJJKOAGCCGEJFLKCBBKEKPECAA.Traci.Sumpter@opus.co.nz>
References: <KFEJJKOAGCCGEJFLKCBBKEKPECAA.Traci.Sumpter@opus.co.nz>

"Traci Sumpter" <Traci.Sumpter@opus.co.nz> writes:
> Cheesy one here....

Got a cheesy answer for you --- cast the result ...

regression=# create view voo as
regression-# select f1::varchar(20) from
regression-# (select f1 from foo union select f2 from foo) ss;
CREATE VIEW
regression=# \d voo
             View "public.voo"
 Column |         Type          | Modifiers 
--------+-----------------------+-----------
 f1     | character varying(20) | 
View definition:
 SELECT ss.f1::character varying(20) AS f1
   FROM ( SELECT foo.f1
           FROM foo
UNION 
 SELECT foo.f2
   FROM foo) ss;

			regards, tom lane



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