title: JPA Native Query set null parameter
body: <p>Here is my code part:</p>
  
  <pre><code>Query q = em.createNativeQuery("insert into table_name (value_one, value_two, value_three) values (?,?,?)");
  q.setParameter(1, value1);
  q.setParameter(2, value2);
  q.setParameter(3, value3);
  q.executeUpdate();
  </code></pre>
  
  <p><code>value3</code> sometimes can be null (Date class object). And if it is null the following exception is thrown:</p>
  
  <pre><code>  Caused by: org.postgresql.util.PSQLException: ERROR: column "value_three" is of type timestamp without time zone but expression is of type bytea
    Hint: You will need to rewrite or cast the expression.
    Position: 88
      at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2102)
      at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1835)
      at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
      at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)
      at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)
      at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:334)
      at org.hibernate.engine.query.NativeSQLQueryPlan.performExecuteUpdate(NativeSQLQueryPlan.java:189)
      ... 11 more
  </code></pre>
  
  <p>How is it possible to get this code working and to persist null value into database?</p>