Execution example::

  logical_select \
    --logical_table Entries \
    --shard_key created_at \
    --min "2015/07/08 00:00:00" \
    --min_border "include" \
    --max "2015/07/09 00:00:00" \
    --max_border "exclude" \
    --limit 0 \
    --output_columns _id \
    --drilldowns[tag.n_likes].keys tag,n_likes \
    --drilldowns[tag.n_likes].output_columns _nsubrecs,_value.n_likes,_value.tag \
    --drilldowns[tag.n_likes].sort_keys -_nsubrecs,_value.n_likes,_value.tag
  # [
  #   [
  #     0,
  #     1337566253.89858,
  #     0.000355720520019531
  #   ],
  #   [
  #     [
  #       [
  #         3
  #       ],
  #       [
  #         [
  #           "_id",
  #           "UInt32"
  #         ]
  #       ]
  #     ],
  #     {
  #       "tag.n_likes": [
  #         [
  #           3
  #         ],
  #         [
  #           [
  #             "_nsubrecs",
  #             "Int32"
  #           ],
  #           [
  #             "n_likes",
  #             "UInt32"
  #           ],
  #           [
  #             "tag",
  #             "ShortText"
  #           ]
  #         ],
  #         [
  #           1,
  #           5,
  #           "Hello"
  #         ],
  #         [
  #           1,
  #           10,
  #           "Groonga"
  #         ],
  #         [
  #           1,
  #           15,
  #           "Groonga"
  #         ]
  #       ]
  #     }
  #   ]
  # ]
