text: drop table if exists dt_load;
  
  create table dt_load (
      time datetime(6) not null,
      note text
  );
  
  insert into dt_load (time, note) values
  ('2016-11-02 01:00:01', 'first'),
  ('2016-11-02 02:00:02', 'first'),
  ('2016-11-02 03:00:03', 'first'),
  ('2016-11-02 04:00:04', 'first'),
  ('2016-11-02 04:00:05.111001', 'first'),
  ('2016-11-02 04:00:05.222002', 'first'),
  ('2016-11-02 04:00:05.333003', 'first');
  
  