On Sat, 26 Jan 2008, Sushant Sinha wrote:
I want to remove stop words but do not want to stem the words. Is there
an interface in tsearch2 that allows me to do this?
Basically I am trying to implement spelling corrections and do not want
to correct stop words.
Create custom dictionary using simple (or just add stop words to simple)
and use it before english stemmer, which has NO stop words !
=# insert into pg_ts_dict
(SELECT 'remove_stopwords', dict_init,
'contrib/english.stop',
dict_lexize,
'simple dictionary with stop words'
FROM pg_ts_dict
WHERE dict_name = 'simple');
insert into pg_ts_dict
(SELECT 'en_stem_no_stopwords', dict_init,
'',
dict_lexize,
'english stemmer without stop words'
FROM pg_ts_dict
WHERE dict_name = 'en_stem');
Thanks,
-Sushant.
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Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: [EMAIL PROTECTED], http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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