Oracle 23c SQL Diagnostic Report Tips

drop table t1 purge;
create table t1 as select * from dba_objects;
select /*+ test01 */object_id,object_name,object_type from t1 where object_id = 9527;
create index idx_object_id0 on t1(object_id,0);
select /*+ test01 */object_id,object_name,object_type from t1 where object_id = 9527;
create or replace directory mydir as '/home/oracle';
grant read,write on directory mydir to public;
!ora text2sqlid test01
alter index idx_object_id0 invisible;
select /*+ test01 */object_id,object_name,object_type from t1 where object_id = 9527;
exec dbms_stats.gather_table_stats('system','t1',cascade=>true,no_invalidate=>false);
select /*+ test01 */object_id,object_name,object_type from t1 where object_id = 9527;
declare my_report clob; 
begin  
  my_report := dbms_sqldiag.report_sql('ggyuy60qqy2w2',directory=>'MYDIR',level=>'ALL'); 
end;
/