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From: Andrey Borodin <[email protected]>
To: Tom Lane <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: GROUP BY ALL
Date: Sun, 18 Dec 2022 20:40:00 -0800
Message-ID: <CAAhFRxiA_K6b4ps30Q623z7Xvc+whsr4wfKmtH0Vshsg3B7ThA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAAhFRxjyTO5BHn9y1oOSEp0TtpTDTTTb7HJBNhTG+i3-hXC0XQ@mail.gmail.com>
	<[email protected]>

On Sun, Dec 18, 2022 at 8:30 PM Tom Lane <[email protected]> wrote:
>
> I'm not especially on board with "ALL" meaning "ALL (oh, but not
> aggregates)".

Yes, that's the weak part of the proposal. I even thought about
renaming it to "GROUP BY SOMEHOW" or even "GROUP BY SURPRISE ME".
I mean I see some cases when it's useful and much less cases when it's
dangerously ambiguous. E.g. grouping by result of a subquery looks way
too complex and unpredictable. But with simple Vars... what could go
wrong?

Best regards, Andrey Borodin.





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