Chinese sort order problem - Mailing list pgsql-general

hello Barry,
    in my machine "select getdatabaseencoding();" returns:
        EUC_CN
    and "\encoding" returns EUC_CN too.
    I have tested for createdb -E EUC_CN / SQL_ASII / LATIN1
    EUC_CN / SQL_ASII  results are same .
    So i want to know where is the source code of SQL "ORDER BY"
    maybe i have to traverse and study the source code for it.

Any suggestion is kind to me.
Thanks.
Malix