tsvector stemmer issue

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От Jeff Trout
Тема tsvector stemmer issue
Дата
Msg-id A9849DFF-42BD-493C-A8CF-156CA28C7E42@torgo.978.org
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Ответы Re: tsvector stemmer issue  (Kevin Grittner <kgrittn@ymail.com>)
Список pgsql-general
ran into an interesting issue - and I’m not sure if anything can be done about it - the snowball stemmer treats
“severance”and “several” as the same, which for me is a big, big issue. 

even quoting it doesn’t help.
indie=> select to_tsvector('severance several');
 to_tsvector
-------------
 'sever':1,2
(1 row)

indie=> select to_tsvector('"severance" several');
 to_tsvector
-------------
 'sever':1,2
(1 row)

using the perl library Lingua::Stem::Snowball it yields the same results (as expected since they both use snowball).

am I SOL here?

—
Jeff Trout <jeff@jefftrout.com>



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