Execution example::

  table_create Entries TABLE_HASH_KEY ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Entries title COLUMN_SCALAR ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Entries body COLUMN_SCALAR ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  load --table Entries
  [
  {"_key": "http://example.com/entry1", "title":"Hello Groonga.", "body":"This is my first entry."},
  {"_key": "http://example.com/entry2", "title":"Hello world.", "body":"I love Groonga!"},
  {"_key": "http://example.com/entry3", "title":"Hello Mroonga, bye Groonga.", "body":"I use Mroonga."},
  {"_key": "http://example.com/entry4", "title":"Say, Hello Groonga!", "body":"I'm back."}
  ]
  # [[0, 1337566253.89858, 0.000355720520019531], 4]
  table_create Terms TABLE_PAT_KEY ShortText --default_tokenizer TokenBigram --normalizer NormalizerAuto
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Terms entries_title COLUMN_INDEX|WITH_POSITION Entries title
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Terms entries_body COLUMN_INDEX|WITH_POSITION Entries body
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Terms entries_whole COLUMN_INDEX|WITH_POSITION|WITH_SECTION Entries title,body
  # [[0, 1337566253.89858, 0.000355720520019531], true]
