Re: Fixing DISTINCT ON for duplicate keys

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От David Fetter
Тема Re: Fixing DISTINCT ON for duplicate keys
Дата
Msg-id 20080731180238.GA24522@fetter.org
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Ответ на Fixing DISTINCT ON for duplicate keys  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Fixing DISTINCT ON for duplicate keys
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On Thu, Jul 31, 2008 at 01:38:37PM -0400, Tom Lane wrote:
> I looked into this trouble report:
> http://archives.postgresql.org/pgsql-sql/2008-07/msg00123.php
> 
> Comments?

It seems to me that DISTINCT ON is just a special case of the more
general windowing functions
<http://archives.postgresql.org/pgsql-hackers/2008-07/msg01277.php>
Harada-san has been working on.  Could these use the same machinery?

Cheers,
David.
-- 
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
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