Re: Using ISpell dictionary - headaches...

Daniel,

early versions of tsearch doesn't support directly OpenOffice dictionaries.

Oleg
On Tue, 22 Jul 2008, Daniel Chiaramello wrote:

> Hi everybody.
>
> Well... I have a problem when trying to install and use an ISpell dictionary
> (the Thai one to be more precise) with the tsearch feature.
>
> _What I am trying to do_
>
> I have a table containing a "title" field, and I want to fill a "vector"
> field with the following command:
> *UPDATE thai_table SET vectors = to_tsvector('thai_utf8',
> coalesce(title,''));*
>
> _How I installed the Thai dictionary_
>
> I installed the "th_TH.dic" and the "th_TH.aff" files (downloaded from
> http://wiki.services.openoffice.org/wiki/Dictionaries) in a
> "/usr/local/share/dicts/ispell/" folder, and I executed the following
> commands:
>
> SET search_path = public;
> BEGIN;
>
> INSERT INTO pg_ts_dict (dict_name, dict_init, dict_initoption, dict_lexize,
> dict_comment)
> VALUES (
> 'th_spell_utf8',
> 'spell_init(internal)',
> 'DictFile="/usr/local/share/dicts/ispell/th_TH.dic",AffFile="/usr/local/share/dicts/ispell/th_TH.aff"',
> 'spell_lexize(internal,internal,integer)',
> 'Thai ISpell dict utf8 encoding'
> );
>
> INSERT INTO pg_ts_cfg (ts_name, prs_name, locale) VALUES ('thai_utf8',
> 'default', 'th_TH.utf8');
>
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'email', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'url', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'host', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'sfloat', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'version', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'uri', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'file', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'float', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'int', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'uint', '{simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'lword', '{th_spell_utf8,simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'nlword', '{th_spell_utf8,simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'word', '{th_spell_utf8,simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'part_hword', '{th_spell_utf8,simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'nlpart_hword', '{th_spell_utf8,simple}');
> INSERT INTO pg_ts_cfgmap (ts_name, tok_alias, dict_name) VALUES ('thai_utf8',
> 'lpart_hword', '{th_spell_utf8,simple}');
>
> COMMIT;
>
> _What my problem is_
>
> The problem is that, when i execute the request to fill my "vectors" field,
> psql crashes...
>
> la connexion au serveur a ?t? coup?e ? l'improviste
> Le serveur s'est peut-?tre arr?t? anormalement
> avant ou durant le traitement de la requ?te.
> La connexion au serveur a ?t? perdue. Tentative de r?initialisation: Echec.
> !>
>
> (it means: the connection with the server has been cut unexpectedly. The
> server may have stop abnormaly before or during the request handling. The
> connection with the server has been lost. Trying to reinitialization: Failed)
>
> I have no idea on what may cause that, nor what I could look for to find idea
> on how to solve that.
>
> It *may* be because I'm using psql 8.0.3 and not the latest version (but I'm
> stucked with that version), i'm just hoping that one of you have met similar
> problem and have successfully solved it, or maybe if you know a site where an
> Ispell dictionary installation is detailed step by step so that I can check
> if I did something wrong somewhere...
>
> Many thanks for your attention,
> Daniel Chiaramello
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83