Cassandra Design Patterns - Second Edition

Denormalization pattern

Denormalize the data and store them as column families in Cassandra. This is a very common practice in NoSQL data stores. There are many reasons why you might do this in Cassandra. The most important aspect is that Cassandra doesn't support joins between the column families. Redundancy is acceptable in Cassandra as storage is cheap, and this is more relevant for Cassandra because Cassandra runs on commodity hardware while many RDBMS systems need much better hardware specifications for the optimal performance when deployed in production environments. Moreover, the read and write operations are highly efficient even if the column families are huge in terms of the number of columns or rows. In the traditional RDBMS, you can ...