SELECT TD_SESSIONIZE(time, 3600, td_client_id) as session_id, time, td_client_id, td_title
FROM (
  SELECT time, td_client_id, td_title
  FROM access_log
  WHERE TD_TIME_RANGE(time,'2017-01-15','2017-01-16','JST')
  ORDER BY td_client_id, time
) t