Issue #3504277 by jsacksick: Add a index on advancedqueue.type.

advancedqueue.install

@@ -91,6 +91,7 @@ function advancedqueue_schema() {
       'queue_expires' => ['expires'],
       'fingerprint' => ['fingerprint'],
       'queue_processed' => ['processed'],
+      'type' => ['type'],
     ],
   ];
 
@@ -135,3 +136,14 @@ function advancedqueue_update_8104() {
     $schema->addIndex('advancedqueue', 'fingerprint', ['fingerprint'], $spec['advancedqueue']);
   }
 }
+
+/**
+ * Add an index on the "type" column.
+ */
+function advancedqueue_update_8105() {
+  $spec = advancedqueue_schema();
+  $schema = \Drupal::database()->schema();
+  if (!$schema->indexExists('advancedqueue', 'type')) {
+    $schema->addIndex('advancedqueue', 'type', ['type'], $spec['advancedqueue']);
+  }
+}