From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
---|---|
To: | oleg(at)sai(dot)msu(dot)su |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: n-gram search function |
Date: | 2007-02-17 09:11:07 |
Message-ID: | 20070217.181107.10149365.t-ishii@sraoss.co.jp |
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Lists: | pgsql-hackers |
Thanks. I'll look into this.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
> 3-gram is implemented as a contrib/pg_trgm. It currently uses GiST index,
> but may be enhanced with the GiN.
>
> Oleg
>
> On Sat, 17 Feb 2007, Tatsuo Ishii wrote:
>
> > Hi,
> >
> > Is anybody working on implementing n-gram search functionality for
> > text type data? tsearch2 is great for long text but it's not
> > appropreate for short (10-100 bytes) text data. What I want to achieve
> > is a fast partial match search using indexes, i.e. foo ~ 'bar' or foo
> > LIKE '%bar%' type matching.
> > --
> > Tatsuo Ishii
> > SRA OSS, Inc. Japan
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 2: Don't 'kill -9' the postmaster
> >
>
> Regards,
> Oleg
> _____________________________________________________________
> Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
> Sternberg Astronomical Institute, Moscow University, Russia
> Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
> phone: +007(495)939-16-83, +007(495)939-23-83
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