Re: Slow search.. quite clueless

On Mon, 26 Sep 2005, Yonatan Ben-Nes wrote:

> Hi again everyone,
>
> Oleg I tried tsearch2 and happily it does work wonderfully for me returning
> results extremly fast and actually its working even better then I wanted with
> all of those neat features like: lexem, weight & stop words.
>
> I got only one problem which is when I want the results to be ordered by a
> diffrent field (like print INT field) it takes quite alot of time for it to
> do it if the query can return lots of results (for example search for the
> word "computer") and thats even if I limit the results.
> The best way to improve its speed for such quereies (that I've found...) is
> to create an index on the field which I want to order by and using it CLUSTER
> the table, after the clustering I drop the the index so it won't be used when
> I run queries with ORDER BY on that field, that seem to improve the speed, if
> anyone got a better idea ill be glad to hear it.

what's your actual query ?  have you tried multicolumn index ?


>
> Anyway thanks alot everyone!
>  Ben-Nes Yonatan
>

     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