From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | vadim(at)krs(dot)ru (Vadim Mikheev) |
Cc: | andreas(dot)zeugswetter(at)telecom(dot)at, hackers(at)postgreSQL(dot)org |
Subject: | Re: AW: [HACKERS] OR clause status report |
Date: | 1998-07-31 14:32:58 |
Message-ID: | 199807311432.KAA24669@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> 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.
--
Bruce Momjian | 830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us | Drexel Hill, Pennsylvania 19026
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