title: Neo4j Load csv on create set if not null
body: <p>Is there a way in Neo4j to use ON CREATE SET with an IF NOT NULL?</p>
  
  <p>I have a cvs file as such:</p>
  
  <pre><code>employeeid,firstname,lastname,suffix,title
  1,john,baker,,mr
  2,ellie,johnston,,mrs,
  3,bob,smith,jr,,
  </code></pre>
  
  <p>My current load statement:</p>
  
  <pre><code>LOAD CSV from 'file://file' AS line
  WITH line
  MERGE (a:Employee {id:TOINT(line.`employeeid`)}) 
  ON CREATE SET a.firstname = line.`firstname`, a.lastname = line.`lastname`, a.suffix = line.`suffix`
  </code></pre>
  
  <p>How would I change this so it won't set an attribute if null but still set those that have values?</p>