Check CQL version with Cassandra and cqlsh?

Question

How do you check which cql version is currently being used in cqlsh?

In sql, you do this:

Select @@version 

Answer 1

There are a couple of ways to go about this.

From within cqlsh, you can simply show version.

aploetz@cqlsh> show version [cqlsh 5.0.1 | Cassandra 2.1.8 | CQL spec 3.2.0 | Native protocol v3] 

However, that only works from within cqlsh. Fortunately, you can also query system.local for that information as well.

aploetz@cqlsh> SELECT cql_version FROM system.local;   cql_version -------------        3.2.0  (1 rows) 

The system.local table has other useful bits of information about your current node, cluster, and Cassandra tool versions as well. For more info, check it out with either SELECT * FROM system.local; (only has 1 row) or desc table system.local.