BEGIN;
BEGIN
create or replace view revenue0 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-06-01'
		and l_shipdate < date'1995-06-01' + interval '90 days'
	group by
		l_suppkey;
CREATE VIEW
EXPLAIN (ANALYZE, BUFFERS)
select
	s_suppkey,
	s_name,
	s_address,
	s_phone,
	total_revenue
from
	supplier,
	revenue0
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue0
	)
order by
	s_suppkey;
                                                                                      QUERY PLAN                                                                                       
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2356513.93..2361611.26 rows=3724 width=79) (actual time=13250.031..13250.035 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue0.supplier_no)
   Buffers: shared hit=737926 read=581240
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1169771.05..1169771.06 rows=1 width=8) (actual time=3722.442..3722.442 rows=1 loops=1)
           Buffers: shared hit=657419 read=1202
           ->  HashAggregate  (cost=1169687.26..1169724.50 rows=3724 width=12) (actual time=3692.192..3712.721 rows=100000 loops=1)
                 Buffers: shared hit=657419 read=1202
                 ->  Bitmap Heap Scan on lineitem  (cost=47375.78..1147352.67 rows=2233459 width=12) (actual time=802.616..2492.719 rows=2246437 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=657419 read=1202
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46817.42 rows=2233459 width=0) (actual time=582.848..582.848 rows=2246437 loops=1)
                             Index Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=6135
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.066..28.349 rows=70652 loops=1)
         Buffers: shared hit=1498 read=425
   ->  Sort  (cost=1186742.87..1186752.18 rows=3724 width=12) (actual time=13215.192..13215.193 rows=1 loops=1)
         Sort Key: revenue0.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=736428 read=580815
         ->  Subquery Scan on revenue0  (cost=1186438.20..1186521.99 rows=3724 width=12) (actual time=13197.981..13215.141 rows=1 loops=1)
               Buffers: shared hit=736428 read=580815
               ->  HashAggregate  (cost=1186438.20..1186484.75 rows=3724 width=12) (actual time=13197.980..13215.137 rows=1 loops=1)
                     Filter: (sum((public.lineitem.l_extendedprice * (1::double precision - public.lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=736428 read=580815
                     ->  Bitmap Heap Scan on lineitem  (cost=47375.78..1147352.67 rows=2233459 width=12) (actual time=895.239..7806.618 rows=2246437 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=79009 read=579613
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46817.42 rows=2233459 width=0) (actual time=675.941..675.941 rows=2246437 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6136
 Total runtime: 13258.874 ms
(33 rows)

drop view revenue0;
DROP VIEW
COMMIT;
COMMIT