Re: COALESCE in ORDER BY... - Mailing list pgsql-sql

From Terry Yapt
Subject Re: COALESCE in ORDER BY...
Date
Msg-id 1053257261.81a4c98pgsql@technovell.com
Whole thread Raw
In response to COALESCE in ORDER BY...  ("Terry Yapt" <pgsql@technovell.com>)
List pgsql-sql
Ok Thanks Andreas, but It was only curiosity because in Oracle I usually use this kind of ORDER BY on SQL's.

Thanks...

-----Original Message-----
From: Andreas Schmitz <andreas.schmitz@as-dataservice.de>
To: Terry Yapt <pgsql@technovell.com>
Date: Sat, 17 May 2003 19:14:09 +0200
Subject: Re: [SQL] COALESCE in ORDER BY...

Terry Yapt wrote:

>www=> SELECT 10 AS first ORDER BY COALESCE(first,0) DESC;
>ERROR:  Attribute "first" not found
>
>Thanks in advance..
>
>
Perhaps, this is a bug, but I have a workarround for you till this is
clariefied:

SELECT *
FROM (SELECT 10 AS FIRST) AS vtbl
ORDER BY COALESCE(vtbl.first,0) DESC;

(Tested with 7.3.2)

Best regards
--
Andreas Schmitz
AS-DataService <http://www.as-dataservice.de>
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Tel.: (0 65 62) 93 05 17
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Email: andreas.schmitz@as-dataservice.de
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