BEGIN;
BEGIN
create or replace view revenue13 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-01-01'
		and l_shipdate < date'1996-01-01' + 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,
	revenue13
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue13
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2393591.80..2398690.28 rows=3801 width=79) (actual time=62166.135..62166.140 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue13.supplier_no)
   Buffers: shared hit=654706 read=682226
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1188008.61..1188008.62 rows=1 width=8) (actual time=24969.757..24969.757 rows=1 loops=1)
           Buffers: shared hit=314361 read=353151
           ->  HashAggregate  (cost=1187923.08..1187961.09 rows=3801 width=12) (actual time=24872.493..24952.179 rows=100000 loops=1)
                 Buffers: shared hit=314361 read=353151
                 ->  Bitmap Heap Scan on lineitem  (cost=48712.53..1164791.66 rows=2313142 width=12) (actual time=2701.912..20229.751 rows=2242974 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1996-03-31 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=314361 read=353151
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48134.25 rows=2313142 width=0) (actual time=2299.121..2299.121 rows=2274813 loops=1)
                             Index Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1996-03-31 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6127
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.141..29.838 rows=69999 loops=1)
         Buffers: shared hit=1906 read=1
   ->  Sort  (cost=1205583.18..1205592.69 rows=3801 width=12) (actual time=62128.932..62128.934 rows=1 loops=1)
         Sort Key: revenue13.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=652800 read=682225
         ->  Subquery Scan on revenue13  (cost=1205271.65..1205357.17 rows=3801 width=12) (actual time=62105.574..62128.893 rows=1 loops=1)
               Buffers: shared hit=652800 read=682225
               ->  HashAggregate  (cost=1205271.65..1205319.16 rows=3801 width=12) (actual time=62105.572..62128.889 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=652800 read=682225
                     ->  Bitmap Heap Scan on lineitem  (cost=48712.53..1164791.66 rows=2313142 width=12) (actual time=2680.956..32471.410 rows=2242974 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1996-03-31 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=338439 read=329074
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48134.25 rows=2313142 width=0) (actual time=2296.319..2296.319 rows=2274813 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1996-03-31 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6128
 Total runtime: 62179.884 ms
(33 rows)

drop view revenue13;
DROP VIEW
COMMIT;
COMMIT