[ADMIN] plpgsql installation

[Rahul Hatalkar]

hi
I tried installing plpgsql by doing the following .

1) CREATE FUNCTION plpgsql_call_handler ()
    RETURNS OPAQUE AS  '/usr/local/pgsql/lib/plpgsql.so' LANGUAGE 'C';

2) CREATE TRUSTED PROCEDURAL LANGUAGE 'plpgsql'   HANDLER
plpgsql_call_handler
             LANCOMPILER 'PL/pgSQL';

The create function command runs fine, the create trusted procedural
language command gives the following error
parser : parse error at or near trusted

Is there anything else I need todo to install plpgsql.

Rahul