Re: full text indexing
От | Oleg Bartunov |
---|---|
Тема | Re: full text indexing |
Дата | |
Msg-id | Pine.GSO.4.63.0603170809120.22593@ra.sai.msu.su обсуждение исходный текст |
Ответ на | Re: full text indexing (Chris <dmagick@gmail.com>) |
Список | pgsql-general |
Chris, try REL8_1_STABLE branch, because you save a lot of time of indexing Oleg On Fri, 17 Mar 2006, Chris wrote: > Oleg Bartunov wrote: >> On Wed, 15 Mar 2006, chris smith wrote: >> >>> Hi all, >>> >>> Just wondering which full text module is better & what the differences >>> are between tsearch and fti ? >> >> if you need online indexing and linguistic support (dictionaries, stop >> words, ranking) tsearch2 is fine. If your data are static and you need >> only strict search, fti could works for you. >> We hope to develop inverted index support for tsearch2 this year, though. >> >>> >>> The table in question has roughly 80,000 rows. >> >> >> how many unique words and how long are documents ? > > I think I'll stick to tsearch, it seems to work pretty well. > > I created the words list from one table (2 columns) for fti. 2.6G file and > almost 200 million records, and took up almost 8.5G of space in the database. > > I was going to see if I could do a speed comparison between the two but ran > out of space before I could create the indexes on this table. > > Hmm. Might try it on a different table and see what happens, I'm interested > to see the differences (if any) between the results :) > > 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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