[PERFORM] Nls sorting in Postgresql-8.3.3

Hello,

I installed postgresql-8.3.3 in our local server  with option  --enable-nls . After successful installion , I create database and import data.But I am not aware how to use nls sort in this postgresql-8.3.3 .

Please tell me  syntax how to use nls sort in query , if some one know.

Thanks in advance.

Praveen Malik.