text: DELIMITER $$
  CREATE FUNCTION hello_js (str VARCHAR(50)) RETURNS VARCHAR(50) LANGUAGE JS
  function(x)
  {
  return x + " JavaScript,";
  }
  $$
  CREATE FUNCTION hello_ruby (str VARCHAR(50)) RETURNS VARCHAR(50) LANGUAGE RUBY
  proc { |a|
   a + " Ruby,"
  }
  $$
  CREATE FUNCTION hello_python (str VARCHAR(50)) RETURNS VARCHAR(50) LANGUAGE PYTHON
  def test_func(x):
   return x + " Python,"
  test_func
  $$
  DELIMITER ;
  select concat(hello_js(hello_ruby(hello_python("Hello, from"))), " and many future languages!");
  