Re: descending Indexes

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От Relaxin
Тема Re: descending Indexes
Дата
Msg-id bj8oiu$17lj$1@news.hub.org
обсуждение исходный текст
Ответ на Re: descending Indexes  (Stephan Szabo <sszabo@megazone.bigpanda.com>)
Ответы Re: descending Indexes  (Bruno Wolff III <bruno@wolff.to>)
Список pgsql-general
Yes, I really *need* a descending index.

How do you do a backward scan on an index?

"Tom Lane" <tgl@sss.pgh.pa.us> wrote in message
news:17675.1062723498@sss.pgh.pa.us...
> Stephan Szabo <sszabo@megazone.bigpanda.com> writes:
> > On Thu, 4 Sep 2003, Bupp Phillips wrote:
> >> I can't find a way to create descending Indexes in PG. Is this
possible?
>
> > You can do it, but it's a bit difficult.
>
> Do you really *need* a descending index?  In most cases a backwards scan
> on a regular index gets the job done.
>
> regards, tom lane
>
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