title: how to do the query in cassandra If i have two cluster key in column family
body: <p>I have a column family and syntax like this:</p>
  
  <pre><code>CREATE TABLE sr_number_callrecord ( 
    id int, 
    callerph text, 
    sr_number text, 
    callid text, 
    start_time text, 
    plan_id int, 
    PRIMARY KEY((sr_number), start_time, callerph) 
  );
  </code></pre>
  
  <p>I want to do the query like :</p>
  
  <pre><code>  a) select * from dummy where sr_number='+919xxxx8383' 
                     and start_time &gt;='2014-12-02 08:23:18' limit 10;
  
    b)  select * from dummy where sr_number='+919xxxxxx83' 
                            and start_time &gt;='2014-12-02 08:23:18' 
                            and callerph='+9120xxxxxxxx0' limit 10;
  </code></pre>
  
  <p>First query works fine but second query is giving error like </p>
  
  <pre><code>Bad Request: PRIMARY KEY column "callerph" cannot be restricted 
  (preceding column "start_time" is either not restricted or by a non-EQ 
  relation)  
  </code></pre>
  
  <p>If I get the result in first query, In second query I am just adding one<br>
    more cluster key to get filter result and the row will be less</p>