def GetIndexList(self):
    tuple_index_list = super(Iterator, self).index_list()
    return [index for index, state in tuple_index_list]
Get the distinct values in this column, as a tuple.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/datastore.py/Iterator.GetIndexList--crossover with--dataset/ETHPy150Open wireservice/agate/agate/columns.py/Column.values_distinct