title: Spring Data Cassandra Insert creating cell tombstones
body: <p>I'm using Spring Boot 1.5.1.RELEASE with spring-boot-starter-data-cassandra.</p>
  
  <p>I'm running into an issue where I'm using CassandraOperations.insert and it is causing a bunch of cell tombstones. This appears to be caused by: <a href="https://jira.spring.io/browse/DATACASS-182" rel="nofollow noreferrer">https://jira.spring.io/browse/DATACASS-182</a>. Since Spring Data now inserts an actual null for null values, that causes cell tombstones. I haven't found any way to tell Spring Data to not do this. Is there a configuration or something where I can say "for this insert, do not insert actual null values"?</p>