CommentQuery: Provide `service_host' additionally to `service_host_name'

refs #8613

modules/monitoring/library/Monitoring/Backend/Ido/Query/CommentQuery.php

@@ -22,6 +22,7 @@ class CommentQuery extends IdoQuery
             'host_name'             => 'CASE WHEN ho.name1 IS NULL THEN so.name1 ELSE ho.name1 END',
             'service'               => 'so.name2 COLLATE latin1_general_ci',
             'service_description'   => 'so.name2',
+            'service_host'          => 'so.name1 COLLATE latin1_general_ci',
             'service_host_name'     => 'so.name1'
         ),
         'hosts' => array(

modules/monitoring/library/Monitoring/DataView/Comment.php

@@ -60,6 +60,6 @@ class Comment extends DataView
      */
     public function getFilterColumns()
     {
-        return array('host', 'service');
+        return array('host', 'service', 'service_host');
     }
 }