Re: re : tsearch2 problem

Поиск
Список
Период
Сортировка
Искать
От
Teodor Sigaev
Тема
Re: re : tsearch2 problem
Дата
Msg-id
4354ADA9.4040801@sigaev.ru
Ответ на
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/
В списке pgsql-general по дате отправления
От: Janning Vygen
Дата:
От: 沈一枫
Дата:
Сообщение: re:re tsearch2 problem
FAQ