presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraHandleResolver.java/CassandraHandleResolver/getOutputTableHandleClass
class CassandraHandleResolver:    @Override
    public Class<? extends ConnectorOutputTableHandle> getOutputTableHandleClass()
    {
        return CassandraOutputTableHandle.class;
    }