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 >= '1997-06-01'
		and l_shipdate < date'1997-06-01' + 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,
	revenue13
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue13
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2390720.16..2395817.34 rows=3715 width=79) (actual time=57798.610..57798.614 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue13.supplier_no)
   Buffers: shared hit=275259 read=1063477 written=65
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1186761.71..1186761.72 rows=1 width=8) (actual time=16671.868..16671.868 rows=1 loops=1)
           Buffers: shared hit=82336 read=586442
           ->  HashAggregate  (cost=1186678.12..1186715.27 rows=3715 width=12) (actual time=16591.884..16660.832 rows=100000 loops=1)
                 Buffers: shared hit=82336 read=586442
                 ->  Bitmap Heap Scan on lineitem  (cost=47643.97..1164042.86 rows=2263526 width=12) (actual time=1974.288..12798.087 rows=2246314 loops=1)
                       Recheck Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=82336 read=586442
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47078.09 rows=2263526 width=0) (actual time=1622.911..1622.911 rows=2279970 loops=1)
                             Index Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=1 read=6133
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.142..19.756 rows=42993 loops=1)
         Buffers: shared hit=1179
   ->  Sort  (cost=1203958.44..1203967.72 rows=3715 width=12) (actual time=57774.221..57774.222 rows=1 loops=1)
         Sort Key: revenue13.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=274080 read=1063477 written=65
         ->  Subquery Scan on revenue13  (cost=1203654.57..1203738.15 rows=3715 width=12) (actual time=57759.626..57774.185 rows=1 loops=1)
               Buffers: shared hit=274080 read=1063477 written=65
               ->  HashAggregate  (cost=1203654.57..1203701.00 rows=3715 width=12) (actual time=57759.625..57774.182 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=274080 read=1063477 written=65
                     ->  Bitmap Heap Scan on lineitem  (cost=47643.97..1164042.86 rows=2263526 width=12) (actual time=2857.630..36167.436 rows=2246314 loops=1)
                           Recheck Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=191744 read=477035 written=65
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47078.09 rows=2263526 width=0) (actual time=2512.832..2512.832 rows=2279970 loops=1)
                                 Index Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6135
 Total runtime: 57810.385 ms
(33 rows)

drop view revenue13;
DROP VIEW
COMMIT;
COMMIT