BEGIN;
BEGIN
create or replace view revenue29 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1993-09-01'
		and l_shipdate < date'1993-09-01' + 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,
	revenue29
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue29
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2380974.93..2386071.66 rows=3702 width=79) (actual time=20904.664..20904.668 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue29.supplier_no)
   Buffers: shared hit=797676 read=535942 written=533
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1181942.43..1181942.44 rows=1 width=8) (actual time=10093.918..10093.918 rows=1 loops=1)
           Buffers: shared hit=400191 read=265626 written=170
           ->  HashAggregate  (cost=1181859.14..1181896.16 rows=3702 width=12) (actual time=10048.137..10083.056 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=400191 read=265626 written=170
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47436.69..1159365.36 rows=2249378 width=12) (actual time=2195.182..8126.338 rows=2249421 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=659676
                       Buffers: shared hit=400191 read=265626 written=170
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46874.35 rows=2249378 width=0) (actual time=1830.388..1830.388 rows=2273484 loops=1)
                             Index Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6141 written=4
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.051..29.794 rows=72980 loops=1)
         Buffers: shared hit=1984
   ->  Sort  (cost=1199032.19..1199041.44 rows=3702 width=12) (actual time=20867.420..20867.422 rows=1 loops=1)
         Sort Key: revenue29.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=795692 read=535942 written=533
         ->  Subquery Scan on revenue29  (cost=1198729.47..1198812.77 rows=3702 width=12) (actual time=20850.562..20867.386 rows=1 loops=1)
               Buffers: shared hit=795692 read=535942 written=533
               ->  HashAggregate  (cost=1198729.47..1198775.75 rows=3702 width=12) (actual time=20850.560..20867.382 rows=1 loops=1)
                     Group Key: lineitem.l_suppkey
                     Filter: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=795692 read=535942 written=533
                     ->  Bitmap Heap Scan on lineitem  (cost=47436.69..1159365.36 rows=2249378 width=12) (actual time=1348.376..8663.376 rows=2249421 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=659676
                           Buffers: shared hit=395501 read=270316 written=363
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46874.35 rows=2249378 width=0) (actual time=1049.388..1049.388 rows=2273484 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6141 written=6
 Planning time: 4.223 ms
 Execution time: 20918.585 ms
(38 rows)

drop view revenue29;
DROP VIEW
COMMIT;
COMMIT