Re: text search synonym dictionary anomaly with numbers - Mailing list pgsql-general

To answer my own question - my synonym dictionary was not be applied
to '1st' because '1st' is a numword, not an asciiword, and my synonym
dictionary was not mapped to numword. To map a dictionary token class:

ALTER TEXT SEARCH CONFIGURATION english
   ALTER MAPPING FOR numword WITH my_synonym_dictionary, simple;

The dictionary must already have been created with CREATE TEXT SEARCH
DICTIONARY

Rich

On Sun, Nov 27, 2011 at 9:57 AM, Richard Greenwood
<richard.greenwood@gmail.com> wrote:
> Oleg,
>
> Thank you. I am sure that you have identified my problem.
>
>  \dF+ english (output below) lists my dictionary which is named
> 'rwg_synonym' before numword so I would have thought that my
> dictionary would have normalized '1st' to '1' before the numword
> dictionary was reached. Maybe this question belongs in a new thread,
> but I do thank you for helping me to look in the correct place.
>
> Best regards,
> Rich
>
> fremontwy=# \dF+ english
> Text search configuration "pg_catalog.english"
> Parser: "pg_catalog.default"
>      Token      |       Dictionaries
> -----------------+--------------------------
>  asciihword      | english_stem
>  asciiword       | rwg_synonym,english_stem
>  email           | simple
>  file            | simple
>  float           | simple
>  host            | simple
>  hword           | english_stem
>  hword_asciipart | english_stem
>  hword_numpart   | simple
>  hword_part      | english_stem
>  int             | simple
>  numhword        | simple
>  numword         | simple
>  sfloat          | simple
>  uint            | simple
>  url             | simple
>  url_path        | simple
>  version         | simple
>  word            | english_stem
>
>
>
> On Sun, Nov 27, 2011 at 7:29 AM, Oleg Bartunov <oleg@sai.msu.su> wrote:
>> Richard,
>>
>> you should check your mapping - '1st' belongs to 'numword' and may be
>> processed
>> in a different way than 'first' or '1'.
>>
>> Oleg
>> On Sat, 26 Nov 2011, Richard Greenwood wrote:
>>
>>> I am working with street address data in which 'first st' has been
>>> entered as '1 st' and so on. So I have created a text search
>>> dictionary with entries:
>>>    first  1
>>>    1st  1
>>> And initially it seems to be working properly:
>>>
>>> SELECT ts_lexize('rwg_synonym','first');
>>> ts_lexize
>>> -----------
>>> {1}
>>>
>>>
>>> SELECT ts_lexize('rwg_synonym','1st');
>>> ts_lexize
>>> -----------
>>> {1}
>>>
>>> But my queries on '1st' are not returning the expected results:
>>>
>>> SELECT count(*) FROM parcel_attrib WHERE txtsrch @@ to_tsquery('1');
>>> count
>>> -------
>>>  403  <- this is what I want
>>>
>>> SELECT count(*) FROM parcel_attrib WHERE txtsrch @@ to_tsquery('first');
>>> count
>>> -------
>>>  403  <- this is also good
>>>
>>> SELECT count(*) FROM parcel_attrib WHERE txtsrch @@ to_tsquery('1st');
>>> count
>>> -------
>>>    4  <- this is not good. There are 4 records that do have '1st',
>>> but why am I not getting 403 records?
>>>
>>> Thanks for reading,
>>> Rich
>>>
>>>
>>
>>        Regards,
>>                Oleg
>> _____________________________________________________________
>> Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
>> Sternberg Astronomical Institute, Moscow University, Russia
>> Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
>> phone: +007(495)939-16-83, +007(495)939-23-83
>>
>
>
>
> --
> Richard Greenwood
> richard.greenwood@gmail.com
> www.greenwoodmap.com
>



--
Richard Greenwood
richard.greenwood@gmail.com
www.greenwoodmap.com