Re: Full text search question: "01.Bez." --> "Erster Bezirk"

From: Dane Foster <studdugie(at)gmail(dot)com>
To: Johann Höchtl <johann(dot)hoechtl(at)gmail(dot)com>
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Full text search question: "01.Bez." --> "Erster Bezirk"
Date: 2016-03-13 17:32:12
Message-ID: CA+WxinLhEhrRsci+PAgEJBbNHeJHQdop8LLs0SBbEqOQfhJbgA@mail.gmail.com
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Hello,


On Sat, Mar 12, 2016 at 11:40 AM, Johann Höchtl <johann(dot)hoechtl(at)gmail(dot)com>
wrote:

> 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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As of the time of writing this I haven't seen any replies to your post so
you may not be aware that an answer was provided to your specific question
in a blog. http://obartunov.livejournal.com/185579.html

Regards,​



Dane​

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