title: HQL Many to Many how to query
body: <p>i have two entities : <code>Customer</code> and <code>User</code>. They have a many to many relationship. Assume I have the following data in database.</p>
  
  <pre>
  Customer
  -------------
  id  | name 
  1   | customer
  
  User
  -------------
  id  | name 
  1   | user1 
  2   | user2 
  
  Customer_use
  -------------
  customer_id  | user_id
  1            | 1
  1            | 2
  </pre>
  
  <p>My question is how to return a query result like below:</p>
  
  <pre>
  customer | users 
  customer | user1,user2
  </pre>