Any reason we dont have CompositeType data structure for key_validation_class ( ref: http://www.datastax.com/docs/0.8/configuration/storage_configuration#key-validation-class) ? I would like to create row_names in the form username:yyyymmddhhmm ( e.g. joe:201206092312 ). I can still do that key_validation_class=UTF8Type but was wonderign if there is any in-built validation for these kind of row_names.
Thanks, -Prasenjit
