\c test_part0
create or replace function test_ret_table(id int)
returns table(id int, t text) as $$
    select * from (values(1, 'test'),(2, 'toto') ) as toto;
$$ language sql;
select * from test_ret_table(0);
 id |  t   
----+------
  1 | test
  2 | toto
(2 rows)

\c regression
create or replace function test_ret_table_normal(in _id integer, out id integer, out t text)
returns setof record as $$
    cluster 'testcluster';
    run on _id;
    target test_ret_table;
$$ language plproxy;
select * from test_ret_table_normal(0);
 id |  t   
----+------
  1 | test
  2 | toto
(2 rows)

create or replace function test_ret_table(in _id integer)
returns table (id integer, t text) as $$
    cluster 'testcluster';
    run on _id;
$$ language plproxy;
select * from test_ret_table(0);
 id |  t   
----+------
  1 | test
  2 | toto
(2 rows)