Re: COALESCE in ORDER BY...
От | Terry Yapt |
---|---|
Тема | Re: COALESCE in ORDER BY... |
Дата | |
Msg-id | 1053257261.81a4c98pgsql@technovell.com обсуждение исходный текст |
Ответ на | COALESCE in ORDER BY... ("Terry Yapt" <pgsql@technovell.com>) |
Список | 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> Kastanienallee 24 D-54662 Speicher Tel.: (0 65 62) 93 05 17 Fax: (0 65 62) 93 05 18 Email: andreas.schmitz@as-dataservice.de <mailto:andreas.schmitz@as-dataservice.de> Ust-IdNr.: DE211466407 Handelsregister: HRA 1869 - Amtsgericht Bitburg <http://www.as-dataservice.de>
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