title: Oracle 19C dbms_stats.gather_table_stats Slowness and return invalid identifier error
body: <p>I'm are using Oracle 19C db and used to gather table stats.   dbms_stats.gather_table_stats(ownname =&gt;'xx', tabname =&gt;'yyy', cascade=&gt;true, no_invalidate=&gt;false);</p>
  <p>it is too slow and some tables return following error as well.</p>
  <p>ORA-00904 : invalid identifier.</p>
  <p>Can assist find solution for this ? Row count around 80Millions</p>