Re: tsearch2 anomoly?

Thanks and I didn't know about ts_debug, so thanks for that also.

For the record, I see how to use my own processing function (e.g.
dropatsymbol) to get what I need:
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/docs/tsearch-V2-intro
.html

However, can you explain the logic behind the parsing difference if I just
add a ".s" to a string:

ossdb=# select ts_debug('gallery2-httpd-2.1-conf.');
ts_debug
-----------------------------------------------------------------------
(default,hword,"Hyphenated word",gallery2-httpd-2,{simple},"'2' 'httpd'
'gallery2' 'gallery2-httpd-2'")
(default,part_hword,"Part of hyphenated word",gallery2,{simple},'gallery2')
(default,lpart_hword,"Latin part of hyphenated
word",httpd,{en_stem},'httpd')
(default,float,"Decimal notation",2.1,{simple},'2.1')
(default,lpart_hword,"Latin part of hyphenated word",conf,{en_stem},'conf')
(5 rows)

ossdb=# select ts_debug('gallery2-httpd-2.1-conf.s');
ts_debug
---------------------------------------------------------------------
(default,host,Host,gallery2-httpd-2.1-conf.s,{simple},'gallery2-httpd-2.1-c
onf.s')
(1 row)

Thanks again,
Bob

On 9/6/07 11:19 AM, "Oleg Bartunov" <oleg(at)sai(dot)msu(dot)su> wrote:

> This is how default parser works. See output from
> select * from ts_debug('gallery2-httpd-conf');
> and
> select * from ts_debug('httpd-2.2.3-5.src.rpm');
>
> All token type:
>
> select * from token_type();
>
>
> On Thu, 6 Sep 2007, RC Gobeille wrote:
>
>> I'm having trouble understanding to_tsvector. (PostreSQL 8.1.9 contrib)
>>
>> In this first case converting 'gallery2-httpd-conf' makes sense to me and is
>> exactly what I want. It looks like the entire string is indexed plus the
>> substrings broken by '-' are indexed.
>>
>>
>> ossdb=# select to_tsvector('gallery2-httpd-conf');
>> to_tsvector
>> ---------------------------------------------------------
>> 'conf':4 'httpd':3 'gallery2':2 'gallery2-httpd-conf':1
>>
>>
>> However, I'd expect the same to happen in the httpd example - but it does not
>> appear to.
>>
>> ossdb=# select to_tsvector('httpd-2.2.3-5.src.rpm');
>> to_tsvector
>> ---------------------------
>> 'httpd-2.2.3-5.src.rpm':1
>>
>> Why don't I get: 'httpd', 'src', 'rpm', 'httpd-2.2.3-5.src.rpm' ?
>>
>> Is this a bug or design?
>>
>>
>> Thank you!
>> Bob
>
> 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