Re: [SQL] Re: [HACKERS] DISTINCT ON: speak now or forever hold your peace

From: Peter Eisentraut <e99re41(at)DoCS(dot)UU(dot)SE>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Chris Bitmead <chris(at)bitmead(dot)com>, pgsql-hackers(at)postgreSQL(dot)org, pgsql-sql(at)postgreSQL(dot)org
Subject: Re: [SQL] Re: [HACKERS] DISTINCT ON: speak now or forever hold your peace
Date: 2000-01-25 10:30:30
Message-ID: Pine.GSO.4.02A.10001251129520.11899-100000@Val.DoCS.UU.SE
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On Mon, 24 Jan 2000, Bruce Momjian wrote:

> > In short, it's not clear to me that supporting DISTINCT ON is a good use
> > of our limited resources. I'm willing to pull it out, but not to fix it.
> > Does someone else want to take responsibility for it?
>
> OK, we can disable it and put it on the TODO list. It is already there.
>

Am I wrong or can DISTINCT ON not be rewritten in terms of GROUP BY in all
cases?

--
Peter Eisentraut Sernanders vaeg 10:115
peter_e(at)gmx(dot)net 75262 Uppsala
http://yi.org/peter-e/ Sweden

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