Hunspell as filtering dictionary

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От Bibi Mansione
Тема Hunspell as filtering dictionary
Дата
Msg-id CACZ67_U8Vu66-kPRj_v2icmn_wmz9_LDM8Tv_tvptKKwBXD2tQ@mail.gmail.com
обсуждение исходный текст
Ответы Re: Hunspell as filtering dictionary
Список pgsql-general
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Hi,
I am trying to create a ts_vector from a French text. Here are the operations that seem logical to perform in that order:

1. remove stopwords
2. use hunspell to find words roots
3. unaccent

I first tried:

CREATE TEXT SEARCH CONFIGURATION fr_conf (copy='simple');

ALTER TEXT SEARCH CONFIGURATION fr_conf

ALTER MAPPING FOR asciiword, asciihword, hword_asciipart,

 word, hword, hword_part

WITH unaccent, french_hunspell;


select * from to_tsvector('fr_conf', E'Pour découvrir et rencontrer l\'aventure.');

-- 'aventure':5 'aventurer':5 'rencontrer':3


But the verb "découvrir" is missing :(


If I try with french_hunspell only, I get it, but with the accent:


select * from to_tsvector('french_hunspell', E'Pour découvrir et rencontrer l\'aventure.');

-- 'aventure':6 'aventurer':6 'découvrir':2 'rencontrer':4


I also tried:

CREATE TEXT SEARCH CONFIGURATION fr_conf2 (copy='simple');

ALTER TEXT SEARCH CONFIGURATION fr_conf2

ALTER MAPPING FOR asciiword, asciihword, hword_asciipart,

 word, hword, hword_part

WITH french_hunspell, unaccent;


select * from to_tsvector('fr_conf2', E'Pour découvrir et rencontrer l\'aventure.');

-- 'aventure':5 'aventurer':5 'rencontrer':3


But I guess unaccent is never called.

I believe this is because french_hunspell is not a filtering dictionary, but I might be wrong. So is there a way to get this result from any FTS configuration (existing or :

-- 'aventure':6 'aventurer':6 'decouvrir':2 'rencontrer':4


Thanks,

Bertrand

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