BEGIN; BEGIN EXPLAIN select l_orderkey, sum(l_extendedprice * (1 - l_discount)) as revenue, o_orderdate, o_shippriority from customer, orders, lineitem where c_mktsegment = 'AUTOMOBILE' and c_custkey = o_custkey and l_orderkey = o_orderkey and o_orderdate < date '1995-03-01' and l_shipdate > date '1995-03-01' group by l_orderkey, o_orderdate, o_shippriority order by revenue desc, o_orderdate LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=2540283.96..2540283.98 rows=10 width=20) -> Sort (cost=2540283.96..2548175.04 rows=3156435 width=20) Sort Key: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount)))), orders.o_orderdate -> HashAggregate (cost=2440510.18..2472074.53 rows=3156435 width=20) Group Key: lineitem.l_orderkey, orders.o_orderdate, orders.o_shippriority -> Hash Join (cost=762941.57..2393163.65 rows=3156435 width=20) Hash Cond: (lineitem.l_orderkey = orders.o_orderkey) -> Bitmap Heap Scan on lineitem (cost=253959.18..1729805.06 rows=32749830 width=12) Recheck Cond: (l_shipdate > '1995-03-01'::date) -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey_brin_idx (cost=0.00..245771.73 rows=32749830 width=0) Index Cond: (l_shipdate > '1995-03-01'::date) -> Hash (cost=490893.04..490893.04 rows=1447147 width=12) -> Hash Join (cost=105707.58..490893.04 rows=1447147 width=12) Hash Cond: (orders.o_custkey = customer.c_custkey) -> Bitmap Heap Scan on orders (cost=55931.57..399601.25 rows=7211815 width=16) Recheck Cond: (o_orderdate < '1995-03-01'::date) -> Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx (cost=0.00..54128.61 rows=7211815 width=0) Index Cond: (o_orderdate < '1995-03-01'::date) -> Hash (cost=46013.58..46013.58 rows=300995 width=4) -> Bitmap Heap Scan on customer (cost=6973.14..46013.58 rows=300995 width=4) Recheck Cond: (c_mktsegment = 'AUTOMOBILE'::bpchar) -> Bitmap Index Scan on customer_c_mktsegment_c_custkey_idx (cost=0.00..6897.89 rows=300995 width=0) Index Cond: (c_mktsegment = 'AUTOMOBILE'::bpchar) Planning time: 2.530 ms (24 rows) COMMIT; COMMIT