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Re: Full Text Search

From: "andy petrella" <andy(dot)petrella(at)gmail(dot)com>
To: "Oleg Bartunov" <oleg(at)sai(dot)msu(dot)su>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Full Text Search
Date: 2008-04-25 17:07:02
Message-ID: 7159e12c0804251007t3dc6239dsdc220a317467220e@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-general
On Fri, Apr 25, 2008 at 6:56 PM, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> wrote:

> On Fri, 25 Apr 2008, andy petrella wrote:
>
>  Hi All,
> >
> > I've some question about the new full text search capability. Is it a
> > way to
> > have wildcard (or smth like) in the query ?
> >
>
> in 8.4 text search will support prefix search and operation
> LIKE '%asd%' will have index support.


Actually, what I want to be able to do is more something like :


SELECT title, body
FROM pgweb
WHERE to_tsvector(title || body) @@ to_tsquery('Mai% & compo%')

title         | body
---------------------------------------------------------------
*Mai*n title |  A table is *compo*sed by cells


It's why I want to know if we need to add an additional dictionary where
completion (f.i.) is taken into account (ispell ?)

thanks for answering.

andy



>
>  Or do we have to add dictionaries ? If yes what kind (for english for
> > example) ?
> >
>
> something like dict_regex ?
> http://vo.astronet.ru/arxiv/dict_regex.html
>
>
> > TY
> >
> > Best.
> >
> > andy
> >
> >
>        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/<http://www.sai.msu.su/%7Emegera/>
> phone: +007(495)939-16-83, +007(495)939-23-83
>



-- 
Andy Petrella
Belgium (Li├Ęge)
********
- Graduate in Mathematics
- Graduate in Informatics
- Software Engineer at Leica Belgium (http://www.ionicsoft.com -
http://gi.leica-geosystems.com)
********
mail :
- andy(dot)petrella(at)gmail(dot)com
- ap(at)ionicsoft(dot)com
********
phone :
+32495991104

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