http://u.qdnx.org/file/erkan-20141030T090806-5mpwbe4.html
@aqeeliz for 1: demand /support "parent retrieval" (A) or if it never comes: make an account on your instance who follows many. E.g. @question follows >800 accounts and here I follow >1000 accounts. (A) http://oracle.skilledtests.com/search/notice?q=parent+retrieval