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 >= '1993-09-01'
		and l_shipdate < date'1993-09-01' + 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=2360748.75..2365845.98 rows=3718 width=79) (actual time=27152.063..27152.067 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=579506 read=742290 written=303
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1171885.89..1171885.90 rows=1 width=8) (actual time=11983.938..11983.938 rows=1 loops=1)
           Buffers: shared hit=361135 read=298770 written=99
           ->  HashAggregate  (cost=1171802.24..1171839.42 rows=3718 width=12) (actual time=11932.290..11972.996 rows=100000 loops=1)
                 Buffers: shared hit=361135 read=298770 written=99
                 ->  Bitmap Heap Scan on lineitem  (cost=47339.34..1149460.28 rows=2234196 width=12) (actual time=1467.714..8593.679 rows=2248874 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=361135 read=298770 written=99
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46780.79 rows=2234196 width=0) (actual time=993.124..993.124 rows=2253113 loops=1)
                             Index Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6141
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.080..30.374 rows=72980 loops=1)
         Buffers: shared hit=1604 read=381
   ->  Sort  (cost=1188862.85..1188872.14 rows=3718 width=12) (actual time=27114.137..27114.139 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=577902 read=741909 written=303
         ->  Subquery Scan on revenue5  (cost=1188558.71..1188642.36 rows=3718 width=12) (actual time=27086.556..27114.106 rows=1 loops=1)
               Buffers: shared hit=577902 read=741909 written=303
               ->  HashAggregate  (cost=1188558.71..1188605.18 rows=3718 width=12) (actual time=27086.553..27114.101 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=577902 read=741909 written=303
                     ->  Bitmap Heap Scan on lineitem  (cost=47339.34..1149460.28 rows=2234196 width=12) (actual time=2183.972..11534.367 rows=2248874 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=216767 read=443139 written=204
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46780.79 rows=2234196 width=0) (actual time=1721.605..1721.605 rows=2253113 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-09-01'::date) AND (l_shipdate < '1993-11-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6142
 Total runtime: 27164.909 ms
(33 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT