Re: integrated tsearch has different results than tsearch2 - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: integrated tsearch has different results than tsearch2
Date
Msg-id 46DD3DFA.8020401@enterprisedb.com
Whole thread Raw
In response to Re: integrated tsearch has different results than tsearch2  ("Pavel Stehule" <pavel.stehule@gmail.com>)
Responses Re: integrated tsearch has different results than tsearch2
List pgsql-hackers
Pavel Stehule wrote:
> 2007/9/3, Teodor Sigaev <teodor@sigaev.ru>:
>>> 1. I am not able use fulltext with latin2 encoding :( I missing note
>>> about only utf8 dictionaries in doc).
>> You can use any server encoding, but dictionary's files should be in utf8 -
>> dictionary will convert utf8 files into server encoding.
>>
>>>
>>> 2. with hspell dictionaries (fresh copy from open office) I got
>>> different and wrong results.
>>> postgres=# select to_tsvector('cs','Příliš žlutý kůň se napil žluté
>>> vody') @@ to_tsquery('cs','napít');
>>>  ?column?
>>> ----------
>>>  f
>>> (1 row)
>> Pls, output of:
>> select ts_lexize('cspell','napil');
>> select to_tsvector('cs','Příliš žlutý kůň se napil žluté
>> vody');
>>
>>
> postgres=# select ts_lexize('cspell','napil');
>  ts_lexize
> -----------
> 
> (1 row)
> postgres=# select to_tsvector('cs','Příliš žlutý kůň se napil žluté vody');
>                         to_tsvector
> -----------------------------------------------------------
>  'vody':7 'kůň':3 'napil':5 'žluté':6 'žlutý':2 'příliš':1
> (1 row)
> 
> There is difference
> 8.2.x
> postgres=# select lexize('cz_ispell','jablka');
>   lexize
> ----------
>  {jablko}
> (1 row)
> 8.3
> postgres=# select ts_lexize('cspell','jablka');
>  ts_lexize
> -----------
> 
> (1 row)
> postgres=# select ts_lexize('cspell','jablko');
>  ts_lexize
> -----------
>  {jablko}
> (1 row)

Can you post a link to the ispell dictionary file you're using so I and
others can  reproduce that?

--  Heikki Linnakangas EnterpriseDB   http://www.enterprisedb.com


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