Merge pull request php-enqueue#1191 from commercewerft/master

php-enqueue#1190 add index on delivery_id to prevent slow queries

Author: makasim

pkg/dbal/DbalContext.php

@@ -238,6 +238,7 @@ public function createDataBaseTable(): void
 
         $table->addIndex(['redeliver_after', 'delivery_id']);
         $table->addIndex(['time_to_live', 'delivery_id']);
+        $table->addIndex(['delivery_id']);
 
         $sm->createTable($table);
     }