title: (PostgreSQL) ERROR: could not open relation
body: <p>I get this strange error</p>
  
  <pre><code>Caused by: org.postgresql.util.PSQLException: ERROR: could not open
  relation base/17369/1684: No such file or directory
  </code></pre>
  
  <p>How do I recover from it ? 
  Any ideas ?</p>
  
  <p>Thanks</p>