Q:

Cassandra: Select count of collections

I'm looking to see if its possible to select the count how many items are in a collection like:
SELECT count(emails[]) FROM users WHERE id = '101'
I can't seem to find how in the docs, maybe I'm missing something. 

A:

https://issues.apache.org/jira/browse/CASSANDRA-5313
There is no such thing at the moment

