Re: patch: function xmltable

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От Pavel Stehule
Тема Re: patch: function xmltable
Дата
Msg-id CAFj8pRBR_He-bbgrbPdu1ZvZq+MfsRoMs2T8CAHhEa9CFM2H-g@mail.gmail.com
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Ответ на Re: patch: function xmltable  (Alvaro Herrera <alvherre@2ndquadrant.com>)
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2016-11-30 13:38 GMT+01:00 Alvaro Herrera <alvherre@2ndquadrant.com>:
Pavel Stehule wrote:
> 2016-11-30 2:40 GMT+01:00 Craig Ringer <craig@2ndquadrant.com>:
>
> > On 30 November 2016 at 05:36, Pavel Stehule <pavel.stehule@gmail.com>
> > wrote:
> >
> > > The problem is in unreserved keyword "PASSING" probably.
> >
> > Yeah, I think that's what I hit when trying to change it.
> >
> > Can't you just parenthesize the expression to use operators like ||
> > etc? If so, not a big deal.
> >
> ???

"'(' a_expr ')'" is a c_expr; Craig suggests that we can just tell users
to manually add parens around any expressions that they want to use.
That's not necessary most of the time since we've been able to use
b_expr in most places.

Now I understand

Regards

Pavel
 

--
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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