Execution example::

  table_create ColumnNormalizations TABLE_NO_KEY
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create ColumnNormalizations target_column COLUMN_SCALAR ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create ColumnNormalizations normalized COLUMN_SCALAR ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  table_create Targets TABLE_PAT_KEY ShortText
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  column_create Targets column_normalizations_target_column \
     COLUMN_INDEX ColumnNormalizations target_column
  # [[0, 1337566253.89858, 0.000355720520019531], true]
  load --table ColumnNormalizations
  [
  {"target_column": "a", "normalized": "<A>"},
  {"target_column": "ac", "normalized": "<AC>"}
  ]
  # [[0, 1337566253.89858, 0.000355720520019531], 2]
