title: Will Cassandra avoid calculating the row MD5 if the value already is an MD5?
body: <p>From various documents about Cassandra, it clearly says that it converts row keys to an MD5 before saving them in the database.</p>
  
  <p>If my row keys already are MD5 sums, is there a way to let Cassandra know and thus avoid having it calculate the MD5 of that MD5?</p>
  
  <p>P.S. The table I am talking about has files in it and the keys are the files MD5 sums.</p>