CDRS query request (frame)

cdrs-query-request.rs

use cdrs::consistency::Consistency;
use cdrs::frames::Frame;
// establish session first

let select_query = String::from("SELECT * FROM db.messages;");

let res_frame: Frame = try!(session.query(
  select_query,      // CQL query string
  Consistency::One,  // consistency
  None,              // query values
  None,              // with names
  None,              // page size
  None,              // paging state
  None,              // serial consistency
  None               // timestamp
));