Execution example::

  table_create Tweets TABLE_NO_KEY
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Tweets content COLUMN_SCALAR ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  table_create Lexicon TABLE_HASH_KEY|KEY_NORMALIZE ShortText --default_tokenizer TokenBigram
  # [[0, 1337566253.89858, 0.000355720520019531], true]
