Execution example::

  load --table event_query --each 'suggest_preparer(_id, type, item, sequence, time, pair_query)'
  [
  {"sequence": "3", "time": 1312950803.86057, "item": "search engine", "type": "submit"},
  {"sequence": "3", "time": 1312950808.86057, "item": "web search realtime", "type": "submit"}
  ]
  # [[0, 1337566253.89858, 0.000355720520019531], 2]
