title: SQL statement parameter values are logged as ? (question mark) in Spring boot
body: <p>The following is my <code>application.properties</code>: </p>
  
  <pre><code>spring.jpa.show-sql=true
  spring.jpa.hibernate.ddl-auto=update
  
  logging.level.org.hibernate.SQL=debug
  logging.level.org.hibernate.type=trace
  logging.level.org.springframework.web=debug
  logging.level.org.hibernate.transaction=trace
  
  server.port=8443
  server.ssl.enabled=false
  </code></pre>
  
  <p>but I still get this in the console: </p>
  
  <pre><code>Hibernate: insert into group_user (`member_groups_id`, member_id) values (?, ?)
  </code></pre>
  
  <p>Why do I still get question mark in the log ? </p>