Please,
take a look on contrib/dict_int and create your own dict_noop.
It should be easy. I think you could document it and share
with people (wiki.postgresql.org ?), since there were other people
interesting in noop dictionary. Also, don't forget to modify
your configuration - use ts_debug(), it will helps you.
Regards,
Oleg
On Sat, 3 Aug 2013, Krzysztof xaru Rajda wrote:
Hello,
I encountered such a problem. my goal is to extract links from a text using
tsearch2. Everything seemed to be well, unless I got some youtube links -
there are some small and big letters inside, and a tsearch parser is lowering
everything (from http://youtube.com/Y6dsHDX I got http://youtube.com/y6dshdx,
which is not working). I went through PostgreSQL docs, and it seem that each
of default dictionaries (simple, ispell, snowball) are lowering lexems during
normalization, and there is no option to disable it.
I started to look for some tutorials, how to create own dictionary, or modify
existing one (I'm talking about dictionary like snowball, with my own source
code - not just a dictionary created by 'CREATE DICTIONARY...' query), but
all I found is really out-of-date, and uses some mechanisms that are
deprecated in latest version of Postgres (I'm working on v 9.2) - like
'contrib/gendict' here:
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/docs/custom-dict.html
<http://www.sai.msu.su/%7Emegera/postgres/gist/tsearch/V2/docs/custom-dict.html>
So now, I have no idea what to do with my case sensitivity problem... Is
there any other way to overcome it, apart from creating own dictionary? If no
- how to create one on the Postgres 9.2?
Regards,
xaru
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: o...@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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