Re: Grouping by date range

From: Bruno Wolff III <bruno(at)wolff(dot)to>
To: Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>
Cc: PgSQL General ML <pgsql-general(at)postgresql(dot)org>
Subject: Re: Grouping by date range
Date: 2003-08-20 18:58:27
Message-ID: 20030820185827.GA28812@wolff.to
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On Wed, Aug 20, 2003 at 13:44:59 -0500,
Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> wrote:
>
> The GROUP BY does implicit sorting, so an ORDER BY on the exact same
> column(s) as the GROUP BY is redundant.

That is an implementation detail, not a promise. With hashed aggregates
in 7.4, you might find this isn't true.

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