Re: re : tsearch2 problem
От
Teodor Sigaev
Тема
Re: re : tsearch2 problem
Дата
Msg-id
4354ADA9.4040801@sigaev.ru
Ответ на
re : tsearch2 problem (沈一枫)
Список
Дерево обсуждения
re : tsearch2 problem "沈一枫" <alphahunters@163.com>
Re: re : tsearch2 problem Teodor Sigaev <teodor@sigaev.ru>
> because of its way of "Inverse Order OF Idexing",and "The GiST Tree is
> well for larting lan but doesn't for chinese lan(also ineffifent for
> Japanese lan)"。
About japanese look at http://www.oss.ecl.ntt.co.jp/tsearch2j/ (it's on
Japanese, but you can contact with developer)
>
>
>
> I only know that GiST is also "Inverse Order OF Idexing",but of course
> it is a tree NOT as lucene does
Tsearch2 doesn't use inverted index (yet), and so it easy to update (your index
is always full - online indexing), but it hasn't good performance on large data
set. The limit is about 10^5 - 10^6 rows in practice.
--
Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/
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