Hi Albe,
Thanks. I will study it.
Regards.
Grace
At 2012-06-14 15:33:07,"Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at> wrote:
>leaf_yxj wrote:
>> Thanks for your answers. I really appreciate it. Although I don't
>understand the whole things you guys
>> mentioned to me. I think maybe I should do it by myself. I need to do
>a test. If there is any good
>> guide/white paper, please give me a link for me to study.
>
>I think the documentation is quite good and comprehensive:
>
>http://www.postgresql.org/docs/current/static/xfunc-c.html
>
>If you look for samples, the contrib modules will serve.
>
>Yours,
>Laurenz Albe