title: PostgreSQL ERROR: could not open file "base/.../..."
body: <p>There are many queue_promotion_n tables where n is from 1 to 100.
  There is an error on the 73 table with a fairly simple query</p>
  
  <pre><code>SELECT count(DISTINCT queue_id)
  FROM "queue_promotion_73"
  WHERE status_new &gt; NOW() - interval '3 days';
  </code></pre>
  
  <blockquote>
    <p>ERROR:  could not open file "base/16387/357386324.1" (target block
    200005): No such file or directory</p>
  </blockquote>
  
  <p>Uptime DB 23 days. How to fix it?</p>