Add support for prepared CQL queries about helenus

[devdazed]

How do the prepared cql queries work? Is the preparation stored server side? or is it a client side preparation. Also, how long is the prep good for, is it per connection or permanent?

[ctavan]

Preparations are stored serverside.

I still have to figure out if they survive connections. If not, we'll have to keep track on which connections of the pool a statement has already been prepared. It's probably best to have a look at http://code.google.com/a/apache-extras.org/p/cassandra-jdbc/

https://issues.apache.org/jira/browse/CASSANDRA-2475 has some more info but no definite answer whether prepared cql queries survive connections.

[ctavan]

The latest python cql driver also has support for prepared statements: http://pypi.python.org/pypi/cql/

[ctavan]

I'm actually working on this but it seems a bit more complicated than I thought...

[devdazed]

Would you like me to push it out to a later milestone?

[ctavan]

Yeah, I think 0.8 would be more realistic, thanks.

CQL 3 is beta in Cassandra 1.1 anyways and 1.1.0 is not even released yet, so I think it's quite ok to have only partial CQL3 support for now.