BEGIN;
BEGIN
create or replace view revenue14 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-06-01'
		and l_shipdate < date'1996-06-01' + 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,
	revenue14
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue14
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2374331.03..2379428.04 rows=3703 width=79) (actual time=35614.671..35614.675 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue14.supplier_no)
   Buffers: shared hit=357593 read=969681 dirtied=647 written=550
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1178634.84..1178634.85 rows=1 width=8) (actual time=17668.777..17668.777 rows=1 loops=1)
           Buffers: shared hit=162631 read=500840
           ->  HashAggregate  (cost=1178551.52..1178588.55 rows=3703 width=12) (actual time=17565.530..17652.012 rows=100000 loops=1)
                 Buffers: shared hit=162631 read=500840
                 ->  Bitmap Heap Scan on lineitem  (cost=47436.02..1156095.72 rows=2245580 width=12) (actual time=1787.061..13424.961 rows=2245464 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=162631 read=500840
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46874.63 rows=2245580 width=0) (actual time=1491.974..1491.974 rows=2263127 loops=1)
                             Index Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6132
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.106..8.044 rows=11829 loops=1)
         Buffers: shared hit=331
   ->  Sort  (cost=1195696.18..1195705.43 rows=3703 width=12) (actual time=35604.619..35604.619 rows=1 loops=1)
         Sort Key: revenue14.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=357262 read=969681 dirtied=647 written=550
         ->  Subquery Scan on revenue14  (cost=1195393.37..1195476.69 rows=3703 width=12) (actual time=35556.382..35604.580 rows=1 loops=1)
               Buffers: shared hit=357262 read=969681 dirtied=647 written=550
               ->  HashAggregate  (cost=1195393.37..1195439.66 rows=3703 width=12) (actual time=35556.380..35604.574 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=357262 read=969681 dirtied=647 written=550
                     ->  Bitmap Heap Scan on lineitem  (cost=47436.02..1156095.72 rows=2245580 width=12) (actual time=2085.497..14270.746 rows=2245464 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=194631 read=468841 dirtied=647 written=550
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46874.63 rows=2245580 width=0) (actual time=1730.522..1730.522 rows=2263127 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6133
 Total runtime: 35630.983 ms
(33 rows)

drop view revenue14;
DROP VIEW
COMMIT;
COMMIT