Track support of Amazon Keyspaces (for Apache Cassandra)

[codefromthecrypt]

No one has yet asked for this, but I played with Amazon Keyspaces which seems a fork or emulation of Cassandra with some restricted features.

In case it comes up, here are some blockers cc @openzipkin/cassandra

Minimum version problem

Keyspaces thinks it is Cassandra 3.11.2. Zipkin's floor version 3.11.3. Note: 3.11.3 was released over 2 years ago!

Connected to Amazon Keyspaces at cassandra.ap-southeast-1.amazonaws.com:9142.
[cqlsh 5.0.1 | Cassandra 3.11.2 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cassandra-at-993194456877@cqlsh> show version
[cqlsh 5.0.1 | Cassandra 3.11.2 | CQL spec 3.4.4 | Native protocol v4]

UDT support problem

Zipkin's schema uses UDTs, but Keyspaces crashes on the statements to create them:

Connected to Amazon Keyspaces at cassandra.ap-southeast-1.amazonaws.com:9142.
[cqlsh 5.0.1 | Cassandra 3.11.2 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cassandra-at-993194456877@cqlsh> CREATE KEYSPACE IF NOT EXISTS zipkin2
   ...   WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}
   ...   AND durable_writes = false;
cassandra-at-993194456877@cqlsh> CREATE TYPE IF NOT EXISTS zipkin2.endpoint (
   ...     service      text,
   ...     ipv4         inet,
   ...     ipv6         inet,
   ...     port         int,
   ... );
InvalidRequest: Error from server: code=2200 [Invalid query] message="Unsupported statement: org.apache.cassandra.cql3.statements.CreateTypeStatement@76a6eb0f"