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 >= '1996-12-01'
		and l_shipdate < date'1996-12-01' + 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=2357246.65..2362343.20 rows=3690 width=79) (actual time=23028.812..23028.814 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=637400 read=681881 written=6454
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1170188.84..1170188.85 rows=1 width=8) (actual time=10579.804..10579.804 rows=1 loops=1)
           Buffers: shared hit=388525 read=270964 written=6422
           ->  HashAggregate  (cost=1170105.81..1170142.71 rows=3690 width=12) (actual time=10511.510..10569.331 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=388525 read=270964 written=6422
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47059.64..1147905.74 rows=2220007 width=12) (actual time=2092.148..7868.142 rows=2246097 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-12-01'::date) AND (l_shipdate < '1997-03-01 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=653353
                       Buffers: shared hit=388525 read=270964 written=6422
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46504.64 rows=2220007 width=0) (actual time=1643.796..1643.796 rows=2248430 loops=1)
                             Index Cond: ((l_shipdate >= '1996-12-01'::date) AND (l_shipdate < '1997-03-01 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6136
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.043..4.105 rows=10906 loops=1)
         Buffers: shared hit=303
   ->  Sort  (cost=1187057.51..1187066.74 rows=3690 width=12) (actual time=23023.601..23023.602 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=637097 read=681881 written=6454
         ->  Subquery Scan on revenue5  (cost=1186755.86..1186838.89 rows=3690 width=12) (actual time=22988.893..23023.563 rows=1 loops=1)
               Buffers: shared hit=637097 read=681881 written=6454
               ->  HashAggregate  (cost=1186755.86..1186801.99 rows=3690 width=12) (actual time=22988.891..23023.559 rows=1 loops=1)
                     Group Key: lineitem.l_suppkey
                     Filter: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=637097 read=681881 written=6454
                     ->  Bitmap Heap Scan on lineitem  (cost=47059.64..1147905.74 rows=2220007 width=12) (actual time=1492.467..9292.637 rows=2246097 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-12-01'::date) AND (l_shipdate < '1997-03-01 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=653353
                           Buffers: shared hit=248572 read=410917 written=32
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46504.64 rows=2220007 width=0) (actual time=1114.274..1114.274 rows=2248430 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-12-01'::date) AND (l_shipdate < '1997-03-01 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6136
 Planning time: 3.550 ms
 Execution time: 23047.186 ms
(38 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT