BEGIN;
BEGIN
create or replace view revenue9 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-11-01'
		and l_shipdate < date'1996-11-01' + 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,
	revenue9
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue9
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2375158.26..2380256.17 rows=3763 width=79) (actual time=103598.075..103598.079 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue9.supplier_no)
   Buffers: shared hit=449624 read=878301 written=44
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1178937.97..1178937.98 rows=1 width=8) (actual time=46837.427..46837.427 rows=1 loops=1)
           Buffers: shared hit=249535 read=413745 written=10
           ->  HashAggregate  (cost=1178853.31..1178890.94 rows=3763 width=12) (actual time=46744.855..46821.835 rows=100000 loops=1)
                 Buffers: shared hit=249535 read=413745 written=10
                 ->  Bitmap Heap Scan on lineitem  (cost=48072.56..1156108.21 rows=2274510 width=12) (actual time=2633.320..41823.474 rows=2246058 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=249535 read=413745 written=10
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47503.93 rows=2274510 width=0) (actual time=2237.930..2237.930 rows=2262069 loops=1)
                             Index Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6138
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.070..40.369 rows=49906 loops=1)
         Buffers: shared hit=1364
   ->  Sort  (cost=1196220.28..1196229.69 rows=3763 width=12) (actual time=103550.409..103550.410 rows=1 loops=1)
         Sort Key: revenue9.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=448260 read=878301 written=44
         ->  Subquery Scan on revenue9  (cost=1195912.13..1195996.80 rows=3763 width=12) (actual time=103536.380..103550.378 rows=1 loops=1)
               Buffers: shared hit=448260 read=878301 written=44
               ->  HashAggregate  (cost=1195912.13..1195959.17 rows=3763 width=12) (actual time=103536.378..103550.375 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=448260 read=878301 written=44
                     ->  Bitmap Heap Scan on lineitem  (cost=48072.56..1156108.21 rows=2274510 width=12) (actual time=2887.577..51369.941 rows=2246058 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=198725 read=464556 written=34
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47503.93 rows=2274510 width=0) (actual time=2494.518..2494.518 rows=2262069 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6139
 Total runtime: 103614.192 ms
(33 rows)

drop view revenue9;
DROP VIEW
COMMIT;
COMMIT