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 = 'FURNITURE' and c_custkey = o_custkey and l_orderkey = o_orderkey and o_orderdate < date '1995-03-17' and l_shipdate > date '1995-03-17' group by l_orderkey, o_orderdate, o_shippriority order by revenue desc, o_orderdate LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=2531241.22..2531241.25 rows=10 width=20) -> Sort (cost=2531241.22..2539063.25 rows=3128809 width=20) Sort Key: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount)))), orders.o_orderdate -> HashAggregate (cost=2432340.70..2463628.79 rows=3128809 width=20) Group Key: lineitem.l_orderkey, orders.o_orderdate, orders.o_shippriority -> Hash Join (cost=762132.61..2385408.56 rows=3128809 width=20) Hash Cond: (lineitem.l_orderkey = orders.o_orderkey) -> Bitmap Heap Scan on lineitem (cost=250778.16..1721493.36 rows=32339376 width=12) Recheck Cond: (l_shipdate > '1995-03-17'::date) -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey_brin_idx (cost=0.00..242693.32 rows=32339376 width=0) Index Cond: (l_shipdate > '1995-03-17'::date) -> Hash (cost=493195.85..493195.85 rows=1452688 width=12) -> Hash Join (cost=106337.87..493195.85 rows=1452688 width=12) Hash Cond: (orders.o_custkey = customer.c_custkey) -> Bitmap Heap Scan on orders (cost=56702.80..401616.41 rows=7311329 width=16) Recheck Cond: (o_orderdate < '1995-03-17'::date) -> Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx (cost=0.00..54874.97 rows=7311329 width=0) Index Cond: (o_orderdate < '1995-03-17'::date) -> Hash (cost=45909.64..45909.64 rows=298035 width=4) -> Bitmap Heap Scan on customer (cost=6906.20..45909.64 rows=298035 width=4) Recheck Cond: (c_mktsegment = 'FURNITURE'::bpchar) -> Bitmap Index Scan on customer_c_mktsegment_c_custkey_idx (cost=0.00..6831.69 rows=298035 width=0) Index Cond: (c_mktsegment = 'FURNITURE'::bpchar) Planning time: 2.566 ms (24 rows) COMMIT; COMMIT