BEGIN;
BEGIN
create or replace view revenue5 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-07-01'
		and l_shipdate < date'1995-07-01' + 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,
	revenue5
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue5
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2358272.65..2363369.51 rows=3711 width=79) (actual time=22597.458..22597.463 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=629679 read=690189 written=8005
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1170662.69..1170662.70 rows=1 width=8) (actual time=10806.928..10806.928 rows=1 loops=1)
           Buffers: shared hit=277709 read=381665 written=7983
           ->  HashAggregate  (cost=1170579.19..1170616.30 rows=3711 width=12) (actual time=10751.295..10796.363 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=277709 read=381665 written=7983
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47276.72..1148276.60 rows=2230259 width=12) (actual time=1397.846..8423.633 rows=2247994 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=653235
                       Buffers: shared hit=277709 read=381665 written=7983
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46719.15 rows=2230259 width=0) (actual time=1073.303..1073.303 rows=2250248 loops=1)
                             Index Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6139
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.033..17.535 rows=40959 loops=1)
         Buffers: shared hit=1120
   ->  Sort  (cost=1187609.65..1187618.93 rows=3711 width=12) (actual time=22575.974..22575.976 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=628559 read=690189 written=8005
         ->  Subquery Scan on revenue5  (cost=1187306.14..1187389.63 rows=3711 width=12) (actual time=22566.611..22575.940 rows=1 loops=1)
               Buffers: shared hit=628559 read=690189 written=8005
               ->  HashAggregate  (cost=1187306.14..1187352.52 rows=3711 width=12) (actual time=22566.609..22575.935 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=628559 read=690189 written=8005
                     ->  Bitmap Heap Scan on lineitem  (cost=47276.72..1148276.60 rows=2230259 width=12) (actual time=1966.760..9134.394 rows=2247994 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=653235
                           Buffers: shared hit=350850 read=308524 written=22
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46719.15 rows=2230259 width=0) (actual time=1585.676..1585.676 rows=2250248 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6139
 Planning time: 2.689 ms
 Execution time: 22617.002 ms
(38 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT