text: delete from message;
  
  insert into message(id, text, tag, user_id) values
  (1, 'first', 'my-tag', 1),
  (2, 'second', 'more', 1),
  (3, 'third', 'my-tag', 1),
  (4, 'fourth', 'another', 2);
  
  alter sequence hibernate_sequence restart with 10;