Add duration type

[tzach]

Cassandra added duration type in 3.10

INSERT INTO RiderResults (rider, race, result) VALUES ('Christopher Froome', 'Tour de France', 89h4m48s);
INSERT INTO RiderResults (rider, race, result) VALUES ('BARDET Romain', 'Tour de France', PT89H8M53S);
INSERT INTO RiderResults (rider, race, result) VALUES ('QUINTANA Nairo', 'Tour de France', P0000-00-00T89:09:09);

https://issues.apache.org/jira/browse/CASSANDRA-13174

[hakuch]

I've finished porting the underlying Duration type, including its representation, parsing, and pretty-printing.

However, it looks like this feature was introduced in the 3.10 release of Cassandra, so we may want to wait before supporting the new type in CQL.

I could prepare a patch for merging the support for the underlying type and we could revisit this in the future.

Do you have any input, @tzach?

[hakuch]

For reference, the patch which adds this feature is discussed here.

[avikivity]

By itself the fact it was added to Cassandra only in 3.10 shouldn't block us.

But it looks like duration can't be represented in cql binary protocol < v5, and we only support v4 so far.

[penberg]

@avikivity CQL protocol v5 is work-in-progress, hidden behind some feature flag in the drivers. We can definitely add support for that in ScyllaDB for the duration type.

[tzach]

@hakuch what driver can work with this new type? (and v5)?

[hakuch]

@tzach, the Datastax Java driver version 3.2.0 appears to support it (as well as additional functionality related to duration that we do not yet support). cqlsh should also support it. I'm not sure about the status of all available drivers, however.

Does that answer your question?

[tzach]

Yes it does. Thanks