  select  
        subq_0.c0 as c0
      from 
        (select  
              ref_0.c_s7edob as c0
            from 
              t_dmvax as ref_0
            where ref_0.c_s7edob not in (
              select  
                  ref_1.c_wwyiz as c0
                from 
                  t_dmvax as ref_1)
            ) as subq_0
      where subq_0.c0 = ( 
        select  
              ref_3.c_wwyiz as c0
            from 
              (t_dmvax as ref_2
                cross join t_dmvax as ref_3)
          union
          select  
              ref_4.c_wwyiz as c0
            from 
              t_dmvax as ref_4);

