Merge pull request #5138 from annando/optimize-workerqueue

Possibly fixes 5137: Only execute "optimize table" when allowed

src/Worker/Cron.php

@@ -102,7 +102,9 @@ Class Cron {
 			dba::delete('workerqueue', ['`done` AND `executed` < UTC_TIMESTAMP() - INTERVAL 1 HOUR']);
 
 			// Optimizing this table only last seconds
+			if (Config::get('system', 'optimize_workerqueue', false)) {
 				dba::e("OPTIMIZE TABLE `workerqueue`");
+			}
 
 			Config::set('system', 'last_cron_hourly', time());
 		}