select case
           when (select count(*)
                 from store_sales
                 where ss_quantity between 1 and 20) > 74129
               then (select avg(ss_ext_discount_amt)
                     from store_sales
                     where ss_quantity between 1 and 20)
           else (select avg(ss_net_paid)
                 from store_sales
                 where ss_quantity between 1 and 20) end   bucket1,
       case
           when (select count(*)
                 from store_sales
                 where ss_quantity between 21 and 40) > 122840
               then (select avg(ss_ext_discount_amt)
                     from store_sales
                     where ss_quantity between 21 and 40)
           else (select avg(ss_net_paid)
                 from store_sales
                 where ss_quantity between 21 and 40) end  bucket2,
       case
           when (select count(*)
                 from store_sales
                 where ss_quantity between 41 and 60) > 56580
               then (select avg(ss_ext_discount_amt)
                     from store_sales
                     where ss_quantity between 41 and 60)
           else (select avg(ss_net_paid)
                 from store_sales
                 where ss_quantity between 41 and 60) end  bucket3,
       case
           when (select count(*)
                 from store_sales
                 where ss_quantity between 61 and 80) > 10097
               then (select avg(ss_ext_discount_amt)
                     from store_sales
                     where ss_quantity between 61 and 80)
           else (select avg(ss_net_paid)
                 from store_sales
                 where ss_quantity between 61 and 80) end  bucket4,
       case
           when (select count(*)
                 from store_sales
                 where ss_quantity between 81 and 100) > 165306
               then (select avg(ss_ext_discount_amt)
                     from store_sales
                     where ss_quantity between 81 and 100)
           else (select avg(ss_net_paid)
                 from store_sales
                 where ss_quantity between 81 and 100) end bucket5
from reason
where r_reason_sk = 1

