Re: Full text search question: "01.Bez." --> "Erster Bezirk" - Mailing list pgsql-general

I fear I have an involved challenge concerning FTS.

Assume I have the following text in a column:

Graz,06.Bez.:Blah

This parses as:
SELECT alias, description, token FROM ts_debug('german', 'Graz,06.Bez.:Blah');
   alias   |   description   | token
-----------+-----------------+--------
 asciiword | Word, all ASCII | Graz
 blank     | Space symbols   | ,
 host      | Host            | 06.Bez
 blank     | Space symbols   | .:
 asciiword | Word, all ASCII | Blah


Bez. ist the abbreviation for "Bezirk" (german for ~district). 06.Bez means "6th district"

My first problem might be that the parser identifies "06.Bez." as a host lexeme, but ...

I already defined a synonym dictionary to enable searching for "Bezirk", when there is only "Bez." in the database:

file: bevaddress_host.syn:
01.bez bezirk
06.bez bezirk
<snip some more rows>


CREATE TEXT SEARCH DICTIONARY bevaddress_host_syn (
    TEMPLATE = synonym,
    SYNONYMS = bevaddress_host
);
ALTER TEXT SEARCH CONFIGURATION german ALTER MAPPING FOR host WITH bevaddress_host_syn, simple;


I wonder how I can achieve to be able to search for "Erster Bezirk" ("First district") to match eg. "01.Bez."

Thank you for your help, Johann


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