Message-ID: <00e301c3b3eb$5c26f7d0$7502a8c0@hdsc.com>
Reply-To: "Kumar" <sgnerd@yahoo.com.sg>
From: "Kumar" <sgnerd@yahoo.com.sg>
To: "Richard Huxton" <dev@archonet.com>,
	"psql" <pgsql-sql@postgresql.org>
References: <037f01c3b350$fa38ae00$7502a8c0@hdsc.com>
	<200311251614.16957.dev@archonet.com>
Subject: Re: ::text problem
Date: Wed, 26 Nov 2003 12:33:04 +0530
MIME-Version: 1.0
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Thanks a lot. It worked.

----- Original Message ----- 
From: "Richard Huxton" <dev@archonet.com>
To: "Kumar" <sgnerd@yahoo.com.sg>; "psql" <pgsql-sql@postgresql.org>
Sent: Tuesday, November 25, 2003 9:44 PM
Subject: Re: [SQL] ::text problem


> On Tuesday 25 November 2003 12:37, Kumar wrote:
> >
> > SELECT
> >     CASE WHEN c1 IS NULL THEN 'Record_Not_Found'ELSE c1 END as
> > approval_date FROM  t1;
> > ERROR:  Bad timestamp external representation 'Record_Not_Found'
> >
> >
> > SELECT
> >     CASE WHEN c1 IS NULL THEN 'Record_Not_Found'::text ELSE c1 END as
> > approval_date FROM  t1;
> > ERROR:  CASE types 'timestamp without time zone' and 'text' not matched
> 
> Almost - you're on the right lines. Try:
> SELECT
>   CASE
>     WHEN c1 IS NULL THEN 'Record_Not_Found'::text
>     ELSE c1::text
>   END as approval_date FROM  t1;
> 
> You need to make sure both options return type text.
> 
> -- 
>   Richard Huxton
>   Archonet Ltd