Fix/mnt 23290 slow group membership (#1637)

* MNT-23290 - Change query to get the root groups

data-model/src/main/java/org/alfresco/service/cmr/repository/NodeService.java

@@ -2,7 +2,7 @@
  * #%L
  * Alfresco Data model classes
  * %%
- * Copyright (C) 2005 - 2016 Alfresco Software Limited
+ * Copyright (C) 2005 - 2022 Alfresco Software Limited
  * %%
  * This file is part of the Alfresco software. 
  * If the software was purchased under a paid Alfresco license, the terms of 
@@ -714,6 +714,18 @@ public interface NodeService
             final NodeRef parent,
             final QName assocTypeQName);
 
+    /**
+     * Gets the list of the localnames of the child associations without parent node
+     *
+     * @param parent
+     *            the parent node reference
+     * @return a list of the local names of the child associations
+     */
+    @Auditable(parameters = {"parent"})
+    public List<String> findAssocsNotLinkedByTwoOtherAssocs(
+            final NodeRef parent);
+
+
     /**
      * Create a peer association between two nodes.
      * <p/>