title: Operator does not exist
body: <p>When trying to create an entity in a Spring-roo PostGres project, I get the following error :</p>
  
  <pre><code>ERROR org.hibernate.util.JDBCExceptionReporter - ERROR: operator does not exist: integer ~~ unknown
  Hint: No operator matches the given name and argument type(s). You might need to add explicit type casts.
  Position: 433
  </code></pre>
  
  <p>What could be the solution ?</p>