title: ERROR 1356 (HY000): View 'mysql.user' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
body: <p>I have tried query but error
  <br>
  anybody solved the error?</p>
  <p>MariaDB [mysql]&gt; UPDATE user SET Host='%' WHERE User='root';</p>
  <p>ERROR 1356 (HY000): View 'mysql.user' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them</p>