text: call rdebug_compile_routine('test_cs', 'dbg_iterate_numbers', true);
  select 
      count(*) = 2 and 
      sum(variable_name in ('done', 'current_value')) = 2 
    from 
      _rdebug_routine_variables 
    where 
      routine_schema='test_cs'
      and routine_name='dbg_iterate_numbers';
  