but Cassandra does not require it. Internally, Cassandra stores column names and values as hex byte arrays (BytesType). This is the default client encoding used if data types are not defined in the column users column family: [default@demo] LIST users; Cassandra stores all data internally as hex byte arrays by default. If you do not specify a default row key validation class, column comparator and column values can be typed in Cassandra. Internally, Cassandra stores column names and values as hex byte arrays (blob). CQL comes with the following built-in data types, which can be used for column names and