Cassandra sorting results by count

Question

I am recording data on users searching for various keywords. What I\'d like to produce is a report of all of the unique keywords that the users have searched for, sorted in

Answer 1

You could use each keyword as a row key, and use a counter column for each row to track the number of searches. You could then produce a report by scanning over every row and reading the counters. Cassandra won't sort the results (assuming you use the default RandomPartitioner rather than an OrderPreservingPartitioner), but given that there will presumably only be a few tens of thousands of keywords, you can easily sort them at the client.