Thread: questions about tsearch2 (for czech language)

questions about tsearch2 (for czech language)

From

Pavel Stehule

Date:

22 December 2003, 09:45:28

Hello

I try tsearch2 within czech environment. It is works fine, but I have two
questions.

1. I have words "se", "ve" in my czech stop words. But I get this words in
result. Why? Have I problem with my configuration?

tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
Skalici.');
    ts_name    | tok_type | description |  token  |  dict_name  | tsvector
---------------+----------+-------------+---------+-------------+-----------
 default_czech | lword    | Latin word  | jmenuji | {cz_ispell} |
'jmenuji'
 default_czech | lword    | Latin word  | se      | {cz_ispell} | 'se'
 default_czech | lword    | Latin word  | Pavel   | {cz_ispell} | 'pavel'
 default_czech | word     | Word        | Stěhule | {cz_ispell} |
 default_czech | lword    | Latin word  | a       | {cz_ispell} |
 default_czech | word     | Word        | bydlím  | {cz_ispell} | 'bydlet'
 default_czech | lword    | Latin word  | ve      | {cz_ispell} | 've'
 default_czech | lword    | Latin word  | Skalici | {cz_ispell} |
'skalici'
(8 řádek)

tsearch2=# select * from pg_ts_cfgmap where ts_name='default_czech';
    ts_name    |  tok_alias   |  dict_name
---------------+--------------+-------------
 default_czech | email        | {simple}
 default_czech | file         | {simple}
 default_czech | float        | {simple}
 default_czech | host         | {simple}
 default_czech | hword        | {cz_ispell}
 default_czech | int          | {simple}
 default_czech | lhword       | {cz_ispell}
 default_czech | lpart_hword  | {cz_ispell}
 default_czech | lword        | {cz_ispell}
 default_czech | nlhword      | {cz_ispell}
 default_czech | nlpart_hword | {cz_ispell}
 default_czech | nlword       | {cz_ispell}
 default_czech | part_hword   | {simple}
 default_czech | sfloat       | {simple}
 default_czech | uint         | {simple}
 default_czech | uri          | {simple}
 default_czech | url          | {simple}
 default_czech | version      | {simple}
 default_czech | word         | {cz_ispell}
(19 řádek)

2. I use small czech dictionary. I need don't erase words which aren't in
dictionary (in my sample Stěhule). Can I set it somewhere? I tryed add
simple dict into cfg map, but witout sucess

tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
Skalici.');           ts_name    | tok_type | description |  token  |
dict_name      | tsvector
---------------+----------+-------------+---------+--------------------+-----------
 default_czech | word     | Word        | Stěhule | {cz_ispell,simple} |
 default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
 default_czech | word     | Word        | bydlím  | {cz_ispell,simple} |
'bydlet'


Thank You
Pavel Stehule

Re: questions about tsearch2 (for czech language)

From

Oleg Bartunov

Date:

22 December 2003, 10:07:15

On Mon, 22 Dec 2003, Pavel Stehule wrote:

> Hello
>
> I try tsearch2 within czech environment. It is works fine, but I have two
> questions.
>
> 1. I have words "se", "ve" in my czech stop words. But I get this words in
> result. Why? Have I problem with my configuration?

did you specify stop words in dictionaries configuration ?

select * from pg_ts_dict;


>
> tsearch2=# select * from ts_debug('jmenuji se Pavel StЛhule a bydlМm ve
> Skalici.');
>     ts_name    | tok_type | description |  token  |  dict_name  | tsvector
> ---------------+----------+-------------+---------+-------------+-----------
>  default_czech | lword    | Latin word  | jmenuji | {cz_ispell} |
> 'jmenuji'
>  default_czech | lword    | Latin word  | se      | {cz_ispell} | 'se'
>  default_czech | lword    | Latin word  | Pavel   | {cz_ispell} | 'pavel'
>  default_czech | word     | Word        | StЛhule | {cz_ispell} |
>  default_czech | lword    | Latin word  | a       | {cz_ispell} |
>  default_czech | word     | Word        | bydlМm  | {cz_ispell} | 'bydlet'
>  default_czech | lword    | Latin word  | ve      | {cz_ispell} | 've'
>  default_czech | lword    | Latin word  | Skalici | {cz_ispell} |
> 'skalici'
> (8 ЬАdek)
>
> tsearch2=# select * from pg_ts_cfgmap where ts_name='default_czech';
>     ts_name    |  tok_alias   |  dict_name
> ---------------+--------------+-------------
>  default_czech | email        | {simple}
>  default_czech | file         | {simple}
>  default_czech | float        | {simple}
>  default_czech | host         | {simple}
>  default_czech | hword        | {cz_ispell}
>  default_czech | int          | {simple}
>  default_czech | lhword       | {cz_ispell}
>  default_czech | lpart_hword  | {cz_ispell}
>  default_czech | lword        | {cz_ispell}
>  default_czech | nlhword      | {cz_ispell}
>  default_czech | nlpart_hword | {cz_ispell}
>  default_czech | nlword       | {cz_ispell}
>  default_czech | part_hword   | {simple}
>  default_czech | sfloat       | {simple}
>  default_czech | uint         | {simple}
>  default_czech | uri          | {simple}
>  default_czech | url          | {simple}
>  default_czech | version      | {simple}
>  default_czech | word         | {cz_ispell}
> (19 ЬАdek)
>
> 2. I use small czech dictionary. I need don't erase words which aren't in
> dictionary (in my sample StЛhule). Can I set it somewhere? I tryed add
> simple dict into cfg map, but witout sucess
>

Example, please ! What do you mean 'erase words' ?


> tsearch2=# select * from ts_debug('jmenuji se Pavel StЛhule a bydlМm ve
> Skalici.');           ts_name    | tok_type | description |  token  |
> dict_name      | tsvector
> ---------------+----------+-------------+---------+--------------------+-----------
>  default_czech | word     | Word        | StЛhule | {cz_ispell,simple} |
>  default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
>  default_czech | word     | Word        | bydlМm  | {cz_ispell,simple} |
> 'bydlet'
>
>
> Thank You
> Pavel Stehule
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>

    Regards,
        Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83

Re: questions about tsearch2 (for czech language)

From

Pavel Stehule

Date:

22 December 2003, 10:26:42

> > result. Why? Have I problem with my configuration?
>
> did you specify stop words in dictionaries configuration ?
>
> select * from pg_ts_dict;
>
tsearch2=# select * from pg_ts_dict where dict_name ='cz_ispell';
-[ RECORD 1

]---+--------------------------------------------------------------------------------------------------------------------------
dict_name       | cz_ispell
dict_init       | 173405
dict_initoption |

DictFile="/usr/lib/ispell/czech",AffFile="/usr/lib/ispell/czech.aff",StopFile="/usr/local/pgsql/share/contrib/czech.stop"
dict_lexize     | 173406
dict_comment    |

[postgres@usop root]$ cat /usr/local/pgsql/share/contrib/czech.stop|grep -e "^[sv]."
se
sem
si
svůj
ve
vám
váš
viz
vy

> >
> > 2. I use small czech dictionary. I need don't erase words which aren't in
> > dictionary (in my sample Stěhule). Can I set it somewhere? I tryed add
> > simple dict into cfg map, but witout sucess
> >
>
> Example, please ! What do you mean 'erase words' ?
>
>
> > tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
> > Skalici.');           ts_name    | tok_type | description |  token  |
> > dict_name      | tsvector
> > ---------------+----------+-------------+---------+--------------------+-----------
> >  default_czech | word     | Word        | Stěhule | {cz_ispell,simple} |
> >  default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
> >  default_czech | word     | Word        | bydlím  | {cz_ispell,simple} |
> > 'bydlet'
> >
> >

If tsearch didn't find word in dictionary, then erase this from result.
True? My surname, fo example isn't in dictionary, but I wont save this
word in result (tsvector).

I use

tsearch2=# select version();
                                                version
-------------------------------------------------------------------------------------------------------
 PostgreSQL 7.4RC2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3
20030715 (Red Hat Linux 3.3-14)

Re: questions about tsearch2 (for czech language)

From

Oleg Bartunov

Date:

22 December 2003, 12:57:00

Pavel,

did you restart psql session after modifying tsearch2 configuration ?
btw, there is czech dictionary available from http://lingucomponent.openoffice.org/download_dictionary.html
We have utility to convert myspell dicts to ispell one. It's included
in 7.5 development. Patch for 7.4 could be downloaded from
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/

Also, historically, we use openfts mailing list for discussion of
tsearch2.

    Oleg
On Mon, 22 Dec 2003, Pavel Stehule wrote:

> > > result. Why? Have I problem with my configuration?
> >
> > did you specify stop words in dictionaries configuration ?
> >
> > select * from pg_ts_dict;
> >
> tsearch2=# select * from pg_ts_dict where dict_name ='cz_ispell';
> -[ RECORD 1
>
]---+--------------------------------------------------------------------------------------------------------------------------
> dict_name       | cz_ispell
> dict_init       | 173405
> dict_initoption |
>
DictFile="/usr/lib/ispell/czech",AffFile="/usr/lib/ispell/czech.aff",StopFile="/usr/local/pgsql/share/contrib/czech.stop"
> dict_lexize     | 173406
> dict_comment    |
>
> [postgres@usop root]$ cat /usr/local/pgsql/share/contrib/czech.stop|grep -e "^[sv]."
> se
> sem
> si
> svЫj
> ve
> vАm
> vА╧
> viz
> vy
>
> > >
> > > 2. I use small czech dictionary. I need don't erase words which aren't in
> > > dictionary (in my sample StЛhule). Can I set it somewhere? I tryed add
> > > simple dict into cfg map, but witout sucess
> > >
> >
> > Example, please ! What do you mean 'erase words' ?
> >
> >
> > > tsearch2=# select * from ts_debug('jmenuji se Pavel StЛhule a bydlМm ve
> > > Skalici.');           ts_name    | tok_type | description |  token  |
> > > dict_name      | tsvector
> > > ---------------+----------+-------------+---------+--------------------+-----------
> > >  default_czech | word     | Word        | StЛhule | {cz_ispell,simple} |
> > >  default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
> > >  default_czech | word     | Word        | bydlМm  | {cz_ispell,simple} |
> > > 'bydlet'
> > >
> > >
>
> If tsearch didn't find word in dictionary, then erase this from result.
> True? My surname, fo example isn't in dictionary, but I wont save this
> word in result (tsvector).
>
> I use
>
> tsearch2=# select version();
>                                                 version
> -------------------------------------------------------------------------------------------------------
>  PostgreSQL 7.4RC2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3
> 20030715 (Red Hat Linux 3.3-14)
>
>

    Regards,
        Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83

Solved: questions about tsearch2 (for czech language)

From

Pavel Stehule

Date:

23 December 2003, 07:03:57

Oleg

You has true. After restart of postmaster all works fine.

tsearch2=# select to_tsvector('default_czech','Jmenuji se Pavel Stěhule');
            to_tsvector
------------------------------------
 'pavel':3 'stěhule':4 'jmenovat':1

Thank You very much

Pavel Stehule


On Mon, 22 Dec 2003, Oleg Bartunov wrote:

> Pavel,
>
> did you restart psql session after modifying tsearch2 configuration ?
> btw, there is czech dictionary available from http://lingucomponent.openoffice.org/download_dictionary.html
> We have utility to convert myspell dicts to ispell one. It's included
> in 7.5 development. Patch for 7.4 could be downloaded from
> http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
>
> Also, historically, we use openfts mailing list for discussion of
> tsearch2.
>
>     Oleg
> On Mon, 22 Dec 2003, Pavel Stehule wrote:
>
> > > > result. Why? Have I problem with my configuration?
> > >
> > > did you specify stop words in dictionaries configuration ?
> > >
> > > select * from pg_ts_dict;
> > >
> > tsearch2=# select * from pg_ts_dict where dict_name ='cz_ispell';
> > -[ RECORD 1
> >
]---+--------------------------------------------------------------------------------------------------------------------------
> > dict_name       | cz_ispell
> > dict_init       | 173405
> > dict_initoption |
> >
DictFile="/usr/lib/ispell/czech",AffFile="/usr/lib/ispell/czech.aff",StopFile="/usr/local/pgsql/share/contrib/czech.stop"
> > dict_lexize     | 173406
> > dict_comment    |
> >
> > [postgres@usop root]$ cat /usr/local/pgsql/share/contrib/czech.stop|grep -e "^[sv]."
> > se
> > sem
> > si
> > svůj
> > ve
> > vám
> > váš
> > viz
> > vy
> >
> > > >
> > > > 2. I use small czech dictionary. I need don't erase words which aren't in
> > > > dictionary (in my sample Stěhule). Can I set it somewhere? I tryed add
> > > > simple dict into cfg map, but witout sucess
> > > >
> > >
> > > Example, please ! What do you mean 'erase words' ?
> > >
> > >
> > > > tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
> > > > Skalici.');           ts_name    | tok_type | description |  token  |
> > > > dict_name      | tsvector
> > > > ---------------+----------+-------------+---------+--------------------+-----------
> > > >  default_czech | word     | Word        | Stěhule | {cz_ispell,simple} |
> > > >  default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
> > > >  default_czech | word     | Word        | bydlím  | {cz_ispell,simple} |
> > > > 'bydlet'
> > > >
> > > >
> >
> > If tsearch didn't find word in dictionary, then erase this from result.
> > True? My surname, fo example isn't in dictionary, but I wont save this
> > word in result (tsvector).
> >
> > I use
> >
> > tsearch2=# select version();
> >                                                 version
> > -------------------------------------------------------------------------------------------------------
> >  PostgreSQL 7.4RC2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3
> > 20030715 (Red Hat Linux 3.3-14)
> >
> >
>
>     Regards,
>         Oleg
> _____________________________________________________________
> Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
> Sternberg Astronomical Institute, Moscow University (Russia)
> Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
> phone: +007(095)939-16-83, +007(095)939-23-83
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match
>

Re: Solved: questions about tsearch2 (for czech language)

From

Teodor Sigaev

Date:

23 December 2003, 08:09:41

> You has true. After restart of postmaster all works fine.
One comment, you don't need restart postmaster, you should reconnect to
postgresql by exit and start psql. Every new connect creates new child of
postmaster.


>
> tsearch2=# select to_tsvector('default_czech','Jmenuji se Pavel Stěhule');
>             to_tsvector
> ------------------------------------
>  'pavel':3 'stěhule':4 'jmenovat':1
>
> Thank You very much
>
> Pavel Stehule
>
>
> On Mon, 22 Dec 2003, Oleg Bartunov wrote:
>
>
>>Pavel,
>>
>>did you restart psql session after modifying tsearch2 configuration ?
>>btw, there is czech dictionary available from http://lingucomponent.openoffice.org/download_dictionary.html
>>We have utility to convert myspell dicts to ispell one. It's included
>>in 7.5 development. Patch for 7.4 could be downloaded from
>>http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
>>
>>Also, historically, we use openfts mailing list for discussion of
>>tsearch2.
>>
>>    Oleg
>>On Mon, 22 Dec 2003, Pavel Stehule wrote:
>>
>>
>>>>>result. Why? Have I problem with my configuration?
>>>>
>>>>did you specify stop words in dictionaries configuration ?
>>>>
>>>>select * from pg_ts_dict;
>>>>
>>>
>>>tsearch2=# select * from pg_ts_dict where dict_name ='cz_ispell';
>>>-[ RECORD 1

>>>]---+--------------------------------------------------------------------------------------------------------------------------
>>>dict_name       | cz_ispell
>>>dict_init       | 173405
>>>dict_initoption |

>>>DictFile="/usr/lib/ispell/czech",AffFile="/usr/lib/ispell/czech.aff",StopFile="/usr/local/pgsql/share/contrib/czech.stop"
>>>dict_lexize     | 173406
>>>dict_comment    |
>>>
>>>[postgres@usop root]$ cat /usr/local/pgsql/share/contrib/czech.stop|grep -e "^[sv]."
>>>se
>>>sem
>>>si
>>>svůj
>>>ve
>>>vám
>>>váš
>>>viz
>>>vy
>>>
>>>
>>>>>2. I use small czech dictionary. I need don't erase words which aren't in
>>>>>dictionary (in my sample Stěhule). Can I set it somewhere? I tryed add
>>>>>simple dict into cfg map, but witout sucess
>>>>>
>>>>
>>>>Example, please ! What do you mean 'erase words' ?
>>>>
>>>>
>>>>
>>>>>tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
>>>>>Skalici.');           ts_name    | tok_type | description |  token  |
>>>>>dict_name      | tsvector
>>>>>---------------+----------+-------------+---------+--------------------+-----------
>>>>> default_czech | word     | Word        | Stěhule | {cz_ispell,simple} |
>>>>> default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
>>>>> default_czech | word     | Word        | bydlím  | {cz_ispell,simple} |
>>>>>'bydlet'
>>>>>
>>>>>
>>>
>>>If tsearch didn't find word in dictionary, then erase this from result.
>>>True? My surname, fo example isn't in dictionary, but I wont save this
>>>word in result (tsvector).
>>>
>>>I use
>>>
>>>tsearch2=# select version();
>>>                                                version
>>>-------------------------------------------------------------------------------------------------------
>>> PostgreSQL 7.4RC2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3
>>>20030715 (Red Hat Linux 3.3-14)
>>>
>>>
>>
>>    Regards,
>>        Oleg
>>_____________________________________________________________
>>Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
>>Sternberg Astronomical Institute, Moscow University (Russia)
>>Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
>>phone: +007(095)939-16-83, +007(095)939-23-83
>>
>>---------------------------(end of broadcast)---------------------------
>>TIP 9: the planner will ignore your desire to choose an index scan if your
>>      joining column's datatypes do not match
>>
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: if posting/reading through Usenet, please send an appropriate
>       subscribe-nomail command to majordomo@postgresql.org so that your
>       message can get through to the mailing list cleanly

--
Teodor Sigaev                                  E-mail: teodor@sigaev.ru

Re: Solved: questions about tsearch2 (for czech language)

From

Pavel Stehule

Date:

23 December 2003, 08:17:49


On Tue, 23 Dec 2003, Teodor Sigaev wrote:

> > You has true. After restart of postmaster all works fine.
> One comment, you don't need restart postmaster, you should reconnect to
> postgresql by exit and start psql. Every new connect creates new child of
> postmaster.
>
>
true, but I like hard solutions, :->
"/etc/init.d/postgresql restart" is my top command

I work only one on this database, a can use en force.

Pavel

> >
> > tsearch2=# select to_tsvector('default_czech','Jmenuji se Pavel Stěhule');
> >             to_tsvector
> > ------------------------------------
> >  'pavel':3 'stěhule':4 'jmenovat':1
> >
> > Thank You very much
> >
> > Pavel Stehule
> >
> >
> > On Mon, 22 Dec 2003, Oleg Bartunov wrote:
> >
> >
> >>Pavel,
> >>
> >>did you restart psql session after modifying tsearch2 configuration ?
> >>btw, there is czech dictionary available from http://lingucomponent.openoffice.org/download_dictionary.html
> >>We have utility to convert myspell dicts to ispell one. It's included
> >>in 7.5 development. Patch for 7.4 could be downloaded from
> >>http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
> >>
> >>Also, historically, we use openfts mailing list for discussion of
> >>tsearch2.
> >>
> >>    Oleg
> >>On Mon, 22 Dec 2003, Pavel Stehule wrote:
> >>
> >>
> >>>>>result. Why? Have I problem with my configuration?
> >>>>
> >>>>did you specify stop words in dictionaries configuration ?
> >>>>
> >>>>select * from pg_ts_dict;
> >>>>
> >>>
> >>>tsearch2=# select * from pg_ts_dict where dict_name ='cz_ispell';
> >>>-[ RECORD 1
>
>>>]---+--------------------------------------------------------------------------------------------------------------------------
> >>>dict_name       | cz_ispell
> >>>dict_init       | 173405
> >>>dict_initoption |
>
>>>DictFile="/usr/lib/ispell/czech",AffFile="/usr/lib/ispell/czech.aff",StopFile="/usr/local/pgsql/share/contrib/czech.stop"
> >>>dict_lexize     | 173406
> >>>dict_comment    |
> >>>
> >>>[postgres@usop root]$ cat /usr/local/pgsql/share/contrib/czech.stop|grep -e "^[sv]."
> >>>se
> >>>sem
> >>>si
> >>>svůj
> >>>ve
> >>>vám
> >>>váš
> >>>viz
> >>>vy
> >>>
> >>>
> >>>>>2. I use small czech dictionary. I need don't erase words which aren't in
> >>>>>dictionary (in my sample Stěhule). Can I set it somewhere? I tryed add
> >>>>>simple dict into cfg map, but witout sucess
> >>>>>
> >>>>
> >>>>Example, please ! What do you mean 'erase words' ?
> >>>>
> >>>>
> >>>>
> >>>>>tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve
> >>>>>Skalici.');           ts_name    | tok_type | description |  token  |
> >>>>>dict_name      | tsvector
> >>>>>---------------+----------+-------------+---------+--------------------+-----------
> >>>>> default_czech | word     | Word        | Stěhule | {cz_ispell,simple} |
> >>>>> default_czech | lword    | Latin word  | a       | {cz_ispell,simple} |
> >>>>> default_czech | word     | Word        | bydlím  | {cz_ispell,simple} |
> >>>>>'bydlet'
> >>>>>
> >>>>>
> >>>
> >>>If tsearch didn't find word in dictionary, then erase this from result.
> >>>True? My surname, fo example isn't in dictionary, but I wont save this
> >>>word in result (tsvector).
> >>>
> >>>I use
> >>>
> >>>tsearch2=# select version();
> >>>                                                version
> >>>-------------------------------------------------------------------------------------------------------
> >>> PostgreSQL 7.4RC2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3
> >>>20030715 (Red Hat Linux 3.3-14)
> >>>
> >>>
> >>
> >>    Regards,
> >>        Oleg
> >>_____________________________________________________________
> >>Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
> >>Sternberg Astronomical Institute, Moscow University (Russia)
> >>Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
> >>phone: +007(095)939-16-83, +007(095)939-23-83
> >>
> >>---------------------------(end of broadcast)---------------------------
> >>TIP 9: the planner will ignore your desire to choose an index scan if your
> >>      joining column's datatypes do not match
> >>
> >
> >
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 3: if posting/reading through Usenet, please send an appropriate
> >       subscribe-nomail command to majordomo@postgresql.org so that your
> >       message can get through to the mailing list cleanly
>
>