BEGIN;
BEGIN
create or replace view revenue6 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1997-06-01'
		and l_shipdate < date'1997-06-01' + 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,
	revenue6
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue6
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2368175.73..2373274.78 rows=3839 width=79) (actual time=60584.892..60584.901 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue6.supplier_no)
   Buffers: shared hit=373038 read=948740 written=434
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1175317.01..1175317.02 rows=1 width=8) (actual time=31165.475..31165.475 rows=1 loops=1)
           Buffers: shared hit=215156 read=445143
           ->  HashAggregate  (cost=1175230.63..1175269.02 rows=3839 width=12) (actual time=31086.169..31152.907 rows=100000 loops=1)
                 Buffers: shared hit=215156 read=445143
                 ->  Bitmap Heap Scan on lineitem  (cost=48912.13..1152146.43 rows=2308420 width=12) (actual time=1895.125..26243.089 rows=2246170 loops=1)
                       Recheck Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=215156 read=445143
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48335.03 rows=2308420 width=0) (actual time=1431.753..1431.753 rows=2250638 loops=1)
                             Index Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6134
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.065..31.890 rows=42993 loops=1)
         Buffers: shared hit=1179
   ->  Sort  (cost=1192858.71..1192868.30 rows=3839 width=12) (actual time=60547.307..60547.309 rows=1 loops=1)
         Sort Key: revenue6.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=371859 read=948740 written=434
         ->  Subquery Scan on revenue6  (cost=1192543.78..1192630.16 rows=3839 width=12) (actual time=60538.538..60547.261 rows=1 loops=1)
               Buffers: shared hit=371859 read=948740 written=434
               ->  HashAggregate  (cost=1192543.78..1192591.77 rows=3839 width=12) (actual time=60538.535..60547.255 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=371859 read=948740 written=434
                     ->  Bitmap Heap Scan on lineitem  (cost=48912.13..1152146.43 rows=2308420 width=12) (actual time=2295.375..24699.625 rows=2246170 loops=1)
                           Recheck Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=156703 read=503597 written=434
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48335.03 rows=2308420 width=0) (actual time=1932.258..1932.258 rows=2250638 loops=1)
                                 Index Cond: ((l_shipdate >= '1997-06-01'::date) AND (l_shipdate < '1997-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=23 read=6112 written=69
 Total runtime: 60615.086 ms
(33 rows)

drop view revenue6;
DROP VIEW
COMMIT;
COMMIT