Execution example::

  plugin_register functions/string
  # [[0,1337566253.89858,0.000355720520019531],true]
  logical_range_filter \
    --logical_table Entries \
    --shard_key created_at \
    --columns[content_length].stage initial \
    --columns[content_length].type UInt32 \
    --columns[content_length].value 'string_length(content)' \
    --output_columns _id,content,content_length
  # [
  #   [
  #     0,
  #     1337566253.89858,
  #     0.000355720520019531
  #   ],
  #   [
  #     [
  #       [
  #         "_id",
  #         "UInt32"
  #       ],
  #       [
  #         "content",
  #         "Text"
  #       ],
  #       [
  #         "content_length",
  #         "UInt32"
  #       ]
  #     ],
  #     [
  #       1,
  #       "Welcome! This is my first post!",
  #       31
  #     ],
  #     [
  #       2,
  #       "I started to use Groonga. It's very fast!",
  #       41
  #     ],
  #     [
  #       3,
  #       "I also started to use Mroonga. It's also very fast! Really fast!",
  #       64
  #     ],
  #     [
  #       1,
  #       "I migrated all Senna system!",
  #       28
  #     ],
  #     [
  #       2,
  #       "I also migrated all Tritonn system!",
  #       35
  #     ]
  #   ]
  # ]
