Re: [GENERAL] select max(oid)

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От Bruce Momjian
Тема Re: [GENERAL] select max(oid)
Дата
Msg-id 199910260411.AAA17940@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: [GENERAL] select max(oid)  (Peter Eisentraut <peter_e@gmx.net>)
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> On Oct 22, soundar rajan mentioned:
>
> > How do I
> >
> > select max(oid) from table;
> >
> > I'm able to to
> > select max(fieldname) from tablename;
> > but not max(oid).
>
> There is no max function for the type oid. (Interestingly, casting it to
> an int doesn't work either.) You could try to write your own (see help for
> create aggregate). There appear to be < and > operators for the type, so
> it shouldn't be too complicated.
>

Added to TODO:

    * Add max() for oid type

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