title: how to avoid sorting on clustering key columns in cassandra
body: <p>I am a bit new to cassandra.
  I have created a table like below
  <strong>create table events(day text, hour text, sip text, dip text, count, counter,
  primary key((day,hour), sip,dip));</strong></p>
  
  <p>our use case is, application receives many events per second. we would like to have a seprate partition per hour of a day and we need to update the counter if the same event is received again. and also we would like to have unique entries for the combination of dip and sip columns hence I have included those as part of the primary key.</p>
  
  <p>Here as dip, sip columns are forming a clustering key, sorting is taking place while inserting the records into the table. In our case sorting is not required for these columns, sorting is a overhead while we include millions of rows in a table. How to avoid this sorting overhead, Can any one help me?</p>