On top of creating custom aggregate functions, Cassandra provides certain standard aggregate functions by default. These include max, min, avg, count, and sum. You can read more about these functions at https://docs.datastax.com/en/cql/3.3/cql/cql_using/useQueryStdAggregate.html.
Standard aggregate functions
Get Learning Apache Cassandra - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.