Re: Enhanced containment selectivity function

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Matteo Beccati <php(at)beccati(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, Teodor Sigaev <teodor(at)sigaev(dot)ru>
Subject: Re: Enhanced containment selectivity function
Date: 2006-03-10 18:28:15
Message-ID: 200603101828.k2AISGg15531@candle.pha.pa.us
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Matteo Beccati wrote:
> Bruce Momjian ha scritto:
> > Your patch has been added to the PostgreSQL unapplied patches list at:
> >
> > http://momjian.postgresql.org/cgi-bin/pgpatches
> >
> > It will be applied as soon as one of the PostgreSQL committers reviews
> > and approves it.
>
> Great. I would just like to remind that Tom said:
>
> > I'd be willing to consider exporting those functions from selfuncs.c.
>
> so that the selector function could be moved to contrib/ltree, which is
> its natural place.
>
> It could also be noted that a similar feature could be useful outside
> ltree: I guess there are plenty of cases when scanning statistics would
> give a better result than using a constant selectivity.

Yes, I talked to Tom today about moving that stuff into /contrib. I
will work on the patch to do that.

--
Bruce Momjian http://candle.pha.pa.us
SRA OSS, Inc. http://www.sraoss.com

+ If your life is a hard drive, Christ can be your backup. +

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