[Pgsql-ayuda] returns setof ... ERROR!!!

q puede estar mal ???
en language 'sql' funciona!!!
pero con 'plpgsql' NO..!!

dbtests=# select * from t3;
num | valor | ref_t2
-----+-------+--------
1 | ppp x | 1
2 | qqq z | 5
3 | rrr ? | 7
(3 rows)

dbtests=# create or replace function funcion_blabla()
dbtests=# returns setof t3 as '
dbtests'# declare
dbtests'# v_rec RECORD;
dbtests'# begin
dbtests'# create temporary table blabla(num integer,
dbtests=# valor varchar(10),ref_t2 integer);
dbtests'# FOR v_rec IN select * from t3 LOOP
dbtests'# insert into blabla(num,valor,ref_t2)
dbtests=# values(v_rec.num,v_rec.valor,v_rec.ref_t2);
dbtests'# IF NOT FOUND THEN
dbtests'# RAISE NOTICE ''ERROR!!! '';
dbtests'# END IF;
dbtests'# RAISE NOTICE ''Insertando % - % -% '',
dbtests=# v_rec.num,v_rec.valor,v_rec.ref_t2;
dbtests'# END LOOP;
dbtests'# return blabla;
dbtests'# end;
dbtests'# ' language 'plpgsql';
CREATE FUNCTION
dbtests=# select * from funcion_blabla();
NOTICE: Insertando 1 - ppp x -1
NOTICE: Insertando 2 - qqq z -5
NOTICE: Insertando 3 - rrr ? -7
num | valor | ref_t2
-----+-------+--------
(0 rows)

dbtests=#

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