Индексы SQL Server. Поиск дубликатов

Запрос покажет все дублирующие индексы в базе данных SQL Server

-- Ищем дубликаты индексов (создает нагрузку на процессор)
select t1.tablename,t1.indexname,t1.columnlist,t2.indexname,t2.columnlist from
   (select distinct object_name(i.object_id) tablename,i.name indexname,
             (select distinct stuff((select ', ' + c.name
                                       from sys.index_columns ic1 inner join
                                            sys.columns c on ic1.object_id=c.object_id and
                                                             ic1.column_id=c.column_id
                                      where ic1.index_id = ic.index_id and
                                            ic1.object_id=i.object_id and
                                            ic1.index_id=i.index_id
                                      order by index_column_id FOR XML PATH('')),1,2,'')
                from sys.index_columns ic
               where object_id=i.object_id and index_id=i.index_id) as columnlist
       from sys.indexes i inner join
    	    sys.index_columns ic on i.object_id=ic.object_id and
                                    i.index_id=ic.index_id inner join
            sys.objects o on i.object_id=o.object_id
      where o.is_ms_shipped=0) t1 inner join
   (select distinct object_name(i.object_id) tablename,i.name indexname,
             (select distinct stuff((select ', ' + c.name
                                       from sys.index_columns ic1 inner join
                                            sys.columns c on ic1.object_id=c.object_id and
                                                             ic1.column_id=c.column_id
                                      where ic1.index_id = ic.index_id and
                                            ic1.object_id=i.object_id and
                                            ic1.index_id=i.index_id
                                      order by index_column_id FOR XML PATH('')),1,2,'')
                from sys.index_columns ic
               where object_id=i.object_id and index_id=i.index_id) as columnlist
       from sys.indexes i inner join
    	    sys.index_columns ic on i.object_id=ic.object_id and
                                    i.index_id=ic.index_id inner join
            sys.objects o on i.object_id=o.object_id
 where o.is_ms_shipped=0) t2 on t1.tablename=t2.tablename and
       substring(t2.columnlist,1,len(t1.columnlist))=t1.columnlist and
       (t1.columnlist<>t2.columnlist or
         (t1.columnlist=t2.columnlist and t1.indexname<>t2.indexname))