title: Cassandra - advantages of custom type
body: <p>I am planning to use a Java object as a custom type and store it Cassandra. I am taking out 2 data members from the class and making them into primary key and keeping the rest of the data members in the custom type. 
  <code>data members of my class: name, date_of_birth, occupation, last_visit, family_members, total_income</code>
  <code>primary key: name, date_of_birth</code>
  <code>cassandra custom type members: occupation, last_visit, family_members, total_income</code>
  Will the custom data type have any performance benefits while writing or reading when compared to storing the individual data members in terms of Cassandra data types.</p>