BEGIN;
BEGIN
select
	l_returnflag,
	l_linestatus,
	sum(l_quantity) as sum_qty,
	sum(l_extendedprice) as sum_base_price,
	sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
	sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
	avg(l_quantity) as avg_qty,
	avg(l_extendedprice) as avg_price,
	avg(l_discount) as avg_disc,
	count(*) as count_order
from
	lineitem
where
	l_shipdate <= date '1998-12-01' - interval '108 days'
group by
	l_returnflag,
	l_linestatus
order by
	l_returnflag,
	l_linestatus;
 l_returnflag | l_linestatus |   sum_qty   | sum_base_price |  sum_disc_price  |    sum_charge    |     avg_qty      |    avg_price     |      avg_disc      | count_order 
--------------+--------------+-------------+----------------+------------------+------------------+------------------+------------------+--------------------+-------------
 A            | F            | 3.69547e+08 |    5.61105e+11 | 538295719386.639 | 559833654984.271 | 25.5001345559162 | 38236.3415475449 | 0.0500039274273816 |    14819118
 N            | F            | 9.86237e+06 |    1.47829e+10 |  14043767615.989 | 14606048920.5236 | 25.5235945983716 | 38258.4110568086 | 0.0499725674953434 |      386402
 N            | O            | 7.00462e+08 |     1.0707e+12 | 1046172241337.06 |  1088029982415.9 | 25.4968840222471 | 38232.3335832456 | 0.0499971341263206 |    28803800
 R            | F            | 3.69778e+08 |    5.61482e+11 | 538644402884.204 |  560189537917.09 | 25.5086391860925 | 38252.1406081246 | 0.0499956161971242 |    14822519
(4 rows)

COMMIT;
COMMIT