Re: is syntax columname(tablename) necessary still?

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От Pavel Stehule
Тема Re: is syntax columname(tablename) necessary still?
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Msg-id AANLkTik0JSkKGDn=rrGoq9TY5rwECGCZDei+LDBarMyn@mail.gmail.com
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Ответ на Re: is syntax columname(tablename) necessary still?  (Robert Haas <robertmhaas@gmail.com>)
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2010/8/9 Robert Haas <robertmhaas@gmail.com>:
> On Mon, Aug 9, 2010 at 11:24 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
>>> They name to be type_func_keywords, perhaps, but not fully reserved.
>>> And they'd still need that treatment anyway.  Even if cube(whatever)
>>> can't mean "extract a column called cube from table whatever", it can
>>> still mean "call a function called cube on a column called whatever".
>>
>> look to gram.y, please.
>>
>> we can use a
>>
>> GROUP BY CUBE(expr, ..)
>> GROUP BY func_name(expr, ..)
>>
>> so these rules are in conflict, because func_name can have a
>> type_func_keywords symbols. So we have to significantly rewrite a
>> rules about func call or CUBE and ROLLUP have to be a reserved words.
>> There isn't any other possibility.
>
> I understand that you have to make CUBE and ROLLUP reserved words.
> But you would still have to do that even if we changed $SUBJECT.

I am not sure if I understand well.

yes - CUBE and ROLLUP have to be reserved keywords - and I don't
calculate with removing a "obsolete" syntax now.

Regards

Pavel



>
> --
> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise Postgres Company
>


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