BEGIN;
BEGIN
create or replace view revenue3 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-11-01'
		and l_shipdate < date'1995-11-01' + 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,
	revenue3
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue3
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2381658.27..2386756.03 rows=3753 width=79) (actual time=35472.950..35472.953 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue3.supplier_no)
   Buffers: shared hit=467540 read=864019 written=1627
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1182179.03..1182179.04 rows=1 width=8) (actual time=15942.848..15942.848 rows=1 loops=1)
           Buffers: shared hit=327589 read=337062 written=1
           ->  HashAggregate  (cost=1182094.59..1182132.12 rows=3753 width=12) (actual time=15843.168..15925.437 rows=100000 loops=1)
                 Buffers: shared hit=327589 read=337062 written=1
                 ->  Bitmap Heap Scan on lineitem  (cost=48049.94..1159324.73 rows=2276986 width=12) (actual time=2135.685..11826.626 rows=2243664 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=327589 read=337062 written=1
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47480.69 rows=2276986 width=0) (actual time=1765.185..1765.185 rows=2266492 loops=1)
                             Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6128
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.108..52.612 rows=82975 loops=1)
         Buffers: shared hit=2255 read=1
   ->  Sort  (cost=1199479.24..1199488.62 rows=3753 width=12) (actual time=35406.726..35406.727 rows=1 loops=1)
         Sort Key: revenue3.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=465285 read=864018 written=1627
         ->  Subquery Scan on revenue3  (cost=1199171.98..1199256.42 rows=3753 width=12) (actual time=35398.982..35406.692 rows=1 loops=1)
               Buffers: shared hit=465285 read=864018 written=1627
               ->  HashAggregate  (cost=1199171.98..1199218.89 rows=3753 width=12) (actual time=35398.979..35406.686 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=465285 read=864018 written=1627
                     ->  Bitmap Heap Scan on lineitem  (cost=48049.94..1159324.73 rows=2276986 width=12) (actual time=2285.077..15272.652 rows=2243664 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=137696 read=526956 written=1626
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47480.69 rows=2276986 width=0) (actual time=1755.184..1755.184 rows=2266492 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=69 read=6060 written=420
 Total runtime: 35489.074 ms
(33 rows)

drop view revenue3;
DROP VIEW
COMMIT;
COMMIT