Query Rewriting

select c_nationkey, sum(o_totalprice)

from oorder, customer

where c_custkey = o_custkey

group by c_nationkey;

select c_nationkey, 20*sum(o_totalprice), sumerror(o_totalprice) from bs_oorder, js_customer

where (c_custkey = o_custkey)

group by c_nationkey;