tablename.columnname%TYPE in Functions & Types

My ref:
http://developer.postgresql.org/docs/postgres/plpgsql-declarations.html


WHAT AM I MISSING in my ORACLE to PG Port?

--1) I write
CREATE FUNCTION func1( var_1 INOUT T_TABLE1.C_COL1%TYPE, var_2 IN
INTEGER) AS.....
--2) It works but,
NOTICE:  type reference T_TABLE1.C_COL1%TYPE converted to character
varying
--3) It says
CREATE OR REPLACE FUNCTION func1(INOUT var_1 "varchar", IN var_2 int4)
AS...

It kinda works but looks static, now I kinda wanted it to STAY %TYPE.

ALSO
--1) CREATE TYPE type1 AS (tvar_1 T_TABLE1.C_COL1%TYPE, tvar_2
INTEGER);
XX ERROR:  syntax error at or near "%"
--2) CREATE TYPE type1 AS (tvar_1 T_TABLE1.C_COL1, tvar_2 INTEGER);
XX ERROR:  schema "T_TABLE1" does not exist

I don't want to asign it at the ROW level just Column. I got this stuff
all over and need a good conversion solution.

Any help is appreciated...

Thanks
Troy