create or replace function dbo.test_print()
returns record
as
$$
declare 
   v_i int;
   v_str text;
   v_res record;
begin
create temporary table tmp_test (ref1 refcursor) on commit drop;

v_str := 'do $' || '$
declare v_ref refcursor;
begin
Open v_ref for
select 1 as value;
insert into tmp_test (ref1)
values (v_ref);
end;
$' || '$';

execute (v_str);

v_i := 2;
while v_i < 5 loop

v_str := 'do $' || '$
declare v_ref refcursor;
begin
alter table tmp_test add column ref' || cast(v_i as varchar) || ' refcursor;
Open v_ref for
select ' || cast(v_i as varchar) || ' as value;
update tmp_test 
set ref' || cast(v_i as varchar) || ' = v_ref;
end;
$' || '$';

execute (v_str);
v_i := v_i + 1;
end loop;

select *
into v_res
from tmp_test;

return v_res;    
end;
$$ language plpgsql;

select * from dbo.test_print() as t (rev1 refcursor, rev2 refcursor, rev3 refcursor, rev4 refcursor);