writing a plpgsql query for the first time

Hi,

I am having trouble writing my first plpgsql query. Any idea why the
following plpgsql does not work??

test=# drop function if exists testfunc() ;
DROP FUNCTION
test=# create function testfunc()
test-# returns table (id int, code char(1)) as $$
test$#  BEGIN
test$#                  return query select id, code  from
record_table where id > 2;
test$#  END;
test$# $$ language plpgsql;
CREATE FUNCTION
test=#
test=# select * from testfunc();
 id | code
----+------
(0 rows)


test=# select * from record_table;
 id | code
----+------
  1 | 1
  3 | 3
(2 rows)


If I take out "id > 2" from the function, in the where clause, it returns:
test=# select * from testfunc();
NOTICE:  hi
 id | code
----+------
    |
    |
(2 rows)

2 rows...but no actual data??

Here is the table definition:
test=# \d record_table;
                         Table "public.record_table"
 Column |     Type     |                      Modifiers
--------+--------------+-----------------------------------------------------
 id     | integer      | not null default nextval('record_id_seq'::regclass)
 code   | character(1) |
Indexes:
    "record_pkey" PRIMARY KEY, btree (id)


Any idea what's happening?

thanks