Question: How many items did Customer#000021159 order? Calculate those items total charges.
SQL: SELECT COUNT(T2.o_orderkey), SUM(T3.l_extendedprice * (1 - T3.l_discount) * (1 + T3.l_tax)) FROM customer AS T1 INNER JOIN orders AS T2 ON T1.c_custkey = T2.o_custkey INNER JOIN lineitem AS T3 ON T2.o_orderkey = T3.l_orderkey WHERE T1.c_name = 'Customer#000021159' GROUP BY T3.l_linenumber