https://www.drupal.org/node/2921725
hosting-queued db handling broken [#2921725] | Drupal.org
Nov 23, 2017 - When hosting-queued.drush.inc was ported to D7, nobody noticed that the db handling code was no longer sane under the PDO model. This causes two problems. 1)...
hostingdbhandlingbrokendrupal