Cassandra: Collection types (map, set, list)

Cassandra support collection types like map, set and list to store the data.

At the time of writing this post, collections have below limitations

a.   Collections are meant to store small amount of data.

b.   Collections data is always read completely to the memory, reading of single information is not possible.

c.    Collections can’t have more than 65535 elements. (https://issues.apache.org/jira/browse/CASSANDRA-5428)

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