title: upgrade to postgresSql 12.2 getting continuous logs LOG: Failed to reopen the file pg_stat/global.stat retrying
body: <p>Getting below message in postgres logs, after upgrading my db from 9.0.4 to 12.2</p>
  <p>LOG: Failed to reopen the file pg_stat/global.stat retrying.</p>
  <p>I have checked the pg_stat directory and im not seeing any file named global.stat.</p>
  <p>Any help ?</p>