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 >= '1996-04-01'
		and l_shipdate < date'1996-04-01' + 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=2358078.52..2363175.03 rows=3670 width=79) (actual time=105267.267..105267.270 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=616549 read=703622 dirtied=1 written=10889
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1170652.41..1170652.42 rows=1 width=8) (actual time=44594.870..44594.870 rows=1 loops=1)
           Buffers: shared hit=419713 read=239811 dirtied=1 written=3910
           ->  HashAggregate  (cost=1170569.84..1170606.54 rows=3670 width=12) (actual time=44515.908..44583.198 rows=100000 loops=1)
                 Buffers: shared hit=419713 read=239811 dirtied=1 written=3910
                 ->  Bitmap Heap Scan on lineitem  (cost=46773.89..1148494.66 rows=2207518 width=12) (actual time=3211.634..39496.104 rows=2246466 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-04-01'::date) AND (l_shipdate < '1996-06-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=419713 read=239811 dirtied=1 written=3910
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46222.01 rows=2207518 width=0) (actual time=2633.010..2633.010 rows=2252538 loops=1)
                             Index Cond: ((l_shipdate >= '1996-04-01'::date) AND (l_shipdate < '1996-06-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=433 read=5702 written=215
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=3.070..48.168 rows=40980 loops=1)
         Buffers: shared hit=1121 read=1
   ->  Sort  (cost=1187426.09..1187435.27 rows=3670 width=12) (actual time=105213.434..105213.435 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=615428 read=703621 dirtied=1 written=10889
         ->  Subquery Scan on revenue5  (cost=1187126.22..1187208.80 rows=3670 width=12) (actual time=105204.492..105213.375 rows=1 loops=1)
               Buffers: shared hit=615428 read=703621 dirtied=1 written=10889
               ->  HashAggregate  (cost=1187126.22..1187172.10 rows=3670 width=12) (actual time=105204.489..105213.370 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=615428 read=703621 dirtied=1 written=10889
                     ->  Bitmap Heap Scan on lineitem  (cost=46773.89..1148494.66 rows=2207518 width=12) (actual time=3075.504..55407.349 rows=2246466 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-04-01'::date) AND (l_shipdate < '1996-06-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=195715 read=463810 written=6979
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46222.01 rows=2207518 width=0) (actual time=2717.174..2717.174 rows=2250787 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-04-01'::date) AND (l_shipdate < '1996-06-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6136
 Total runtime: 105284.781 ms
(33 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT