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 = 'HOUSEHOLD' and c_custkey = o_custkey and l_orderkey = o_orderkey and o_orderdate < date '1995-03-15' and l_shipdate > date '1995-03-15' group by l_orderkey, o_orderdate, o_shippriority order by revenue desc, o_orderdate LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=2534773.36..2534773.39 rows=10 width=20) -> Sort (cost=2534773.36..2542680.17 rows=3162723 width=20) Sort Key: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount)))), orders.o_orderdate -> HashAggregate (cost=2434800.83..2466428.06 rows=3162723 width=20) Group Key: lineitem.l_orderkey, orders.o_orderdate, orders.o_shippriority -> Hash Join (cost=762792.06..2387359.98 rows=3162723 width=20) Hash Cond: (lineitem.l_orderkey = orders.o_orderkey) -> Bitmap Heap Scan on lineitem (cost=251232.59..1722680.74 rows=32398012 width=12) Recheck Cond: (l_shipdate > '1995-03-15'::date) -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey_brin_idx (cost=0.00..243133.09 rows=32398012 width=0) Index Cond: (l_shipdate > '1995-03-15'::date) -> Hash (cost=493237.26..493237.26 rows=1465776 width=12) -> Hash Join (cost=106410.11..493237.26 rows=1465776 width=12) Hash Cond: (orders.o_custkey = customer.c_custkey) -> Bitmap Heap Scan on orders (cost=56625.68..401414.90 rows=7301378 width=16) Recheck Cond: (o_orderdate < '1995-03-15'::date) -> Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx (cost=0.00..54800.33 rows=7301378 width=0) Index Cond: (o_orderdate < '1995-03-15'::date) -> Hash (cost=46020.31..46020.31 rows=301130 width=4) -> Bitmap Heap Scan on customer (cost=6978.19..46020.31 rows=301130 width=4) Recheck Cond: (c_mktsegment = 'HOUSEHOLD'::bpchar) -> Bitmap Index Scan on customer_c_mktsegment_c_custkey_idx (cost=0.00..6902.90 rows=301130 width=0) Index Cond: (c_mktsegment = 'HOUSEHOLD'::bpchar) Planning time: 2.438 ms (24 rows) COMMIT; COMMIT