def get_columns_from_list(schema_list):
    """
    Create a column name list
    :param schema_list: Columns definitions separate by  "," character,
        A column definition is NAME: TYPE
    :return: column name list
    """
    columns_name = []
    columns_def = schema_list.split(',')
    for column_def in columns_def:
        column_name, column_type = column_def.split(':')
        columns_name.append(column_name)
    return columns_name