Re: AW: [HACKERS] OR clause status report

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От Bruce Momjian
Тема Re: AW: [HACKERS] OR clause status report
Дата
Msg-id 199807311432.KAA24669@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: AW: [HACKERS] OR clause status report  (Vadim Mikheev <vadim@krs.ru>)
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> Andreas Zeugswetter wrote:
> >
> > Vadim wrote:
> > >Bruce Momjian wrote:
> > >>
> > >> I have succeeded in making OR clauses use indexes.  I have not dealt
> > >> with some of the more complex issues like x=3 or y=5 as Vadim mentioned,
> > >> but at least it works.
> > >>
> > >>         test=> select * from test where x=102532 or x=102533;
> > >
> > >But did you care about the case when two indices (on test(x) and
> > >on test(y)) exist ?
> >
> > Do you mean using two indices in one access plan, or the decision which index to use ?
>               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> This.

Yes.  I still need to run some tests.  Just wanted people to know I had
gotten the trivial case working so far.

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