Re: [HACKERS] functions with same name, different args

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От Bruce Momjian
Тема Re: [HACKERS] functions with same name, different args
Дата
Msg-id 199801281634.LAA14291@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: [HACKERS] functions with same name, different args  ("Thomas G. Lockhart" <lockhart@alumni.caltech.edu>)
Список pgsql-hackers
>
> > I notice that all the functions with the same name but different args
> > are actually sql statements which SELECT the result of the function
> > call using a different (and unique) name..
> >
> > Wouldn't this cause slowdowns?  Shouldn't you be able to have a
> > different name for your function in pgsql than in the shared library,
> > without having to resort to such hacks?
>
> Actually, we were pretty happy when Edmund Mergl found this mechanism.
> I've thought about making changes to allow compiled code to do the same
> thing, but we've had other more important issues to work on. Send
> patches if you want something different.

Actually the problem was that SQL functions can compare args and call
the proper function, while C functions just get called without any arg
comparisons.


--
Bruce Momjian
maillist@candle.pha.pa.us

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