title: Postgresql autovacuum to prevent wraparound stuck on corrupt table
body: <p>I have a process running that can not be killed safely:
  autovacuum: VACUUM public.mytable (to prevent wraparound)</p>
  
  <p>This table has been cleared (aside from some entries that can not be deleted due to the table's corruption during a hardware issue) and can not be dropped, because the vacuum is blocking this. I had to run a kill -9 to stop this process and restarted the database, but you can't disable this autovacuum (to prevent [transaction] wraparound), so the autovacuum is coming back up and immediately getting stuck by this corrupt table.</p>
  
  <p>Any insight into this?</p>