Re: Updated tsearch documentation

On Thu, 26 Jul 2007, Bruce Momjian wrote:

> Oleg Bartunov wrote:
>> Bruce,
>>
>> I sent you link to my wiki page with summary of changes
>> http://www.sai.msu.su/~megera/wiki/ts_changes
>>
>> Your documentation looks rather old.
>
> I have updated it to reflect your changes:
>
> http://momjian.us/expire/fulltext/HTML/textsearch-tables.html

Bruce, I noticed you miss many changes. For example,

options for stemmer has changed (it's documented in my ts_changes),
so in
http://momjian.us/expire/fulltext/HTML/textsearch-tables.html#TEXTSEARCH-TABLES-CONFIGURATION

ALTER TEXT SEARCH DICTIONARY en_stem SET OPTION 'english-utf8.stop';

should be

ALTER TEXT SEARCH DICTIONARY en_stem SET OPTION
'StopFile=english-utf8.stop, Language=english';

Also, this is wrong

DROP TEXT SEARCH CONFIGURATION MAPPING ON pg FOR email, url, sfloat, uri, float;

it should be

ALTER TEXT SEARCH CONFIGURATION pg DROP MAPPING FOR email, url, sfloat, uri, float;

Configuration now doesn't have DEFAULT flag, so \dF should not display 'Y'

=> \dF
pg_catalog | russian | Y
public | pg | Y

This is what I see now

postgres=# \dF public.*
List of fulltext configurations
Schema | Name | Description
--------+------+-------------
public | pg |

>
> ---------------------------------------------------------------------------
>
>
>>
>> Oleg
>> On Tue, 24 Jul 2007, Bruce Momjian wrote:
>>
>>>
>>> I have added more documentation to try to show how full text search is
>>> used by user tables. I think this the documentaiton is almost done:
>>>
>>> http://momjian.us/expire/fulltext/HTML/textsearch-tables.html
>>>
>>> ---------------------------------------------------------------------------
>>>
>>> Oleg Bartunov wrote:
>>>> On Wed, 18 Jul 2007, Bruce Momjian wrote:
>>>>
>>>>> Oleg, Teodor,
>>>>>
>>>>> I am confused by the following example. How does gin know to create a
>>>>> tsvector, or does it? Does gist know too?
>>>>
>>>> No, gist doesn't know. I don't remember why, Teodor ?
>>>>
>>>> For GIN see http://archives.postgresql.org/pgsql-hackers/2007-05/msg00625.php
>>>> for discussion
>>>>
>>>>>
>>>>> FYI, at some point we need to chat via instant messenger or IRC to
>>>>> discuss the open items. My chat information is here:
>>>>>
>>>>> http://momjian.us/main/contact.html
>>>>
>>>> I send you invitation for google talk, I use only chat in gmail.
>>>> My gmail account is obartunov(at)gmail(dot)com
>>>>
>>>>>
>>>>> ---------------------------------------------------------------------------
>>>>>
>>>>> SELECT title
>>>>> FROM pgweb
>>>>> WHERE textcat(title,body) @@ plainto_tsquery('create table')
>>>>> ORDER BY dlm DESC LIMIT 10;
>>>>>
>>>>> CREATE INDEX pgweb_idx ON pgweb USING gin(textcat(title,body));
>>>>>
>>>>>
>>>>
>>>> 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
>>>
>>>
>>
>> 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
>
>

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