Re: n-gram search function
От | Oleg Bartunov |
---|---|
Тема | Re: n-gram search function |
Дата | |
Msg-id | Pine.LNX.4.64.0702171016430.400@sn.sai.msu.ru обсуждение исходный текст |
Ответ на | n-gram search function (Tatsuo Ishii <ishii@postgresql.org>) |
Ответы |
Re: n-gram search function
Re: n-gram search function Re: n-gram search function |
Список | pgsql-hackers |
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@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(495)939-16-83, +007(495)939-23-83
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