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 >= '1994-08-01'
		and l_shipdate < date'1994-08-01' + 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=2360477.62..2365575.01 rows=3746 width=79) (actual time=26321.796..26321.801 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=553844 read=765854 written=13614
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1171681.27..1171681.28 rows=1 width=8) (actual time=12767.534..12767.534 rows=1 loops=1)
           Buffers: shared hit=245279 read=413915 written=13602
           ->  HashAggregate  (cost=1171596.99..1171634.45 rows=3746 width=12) (actual time=12717.734..12757.830 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=245279 read=413915 written=13602
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47742.89..1149073.75 rows=2252324 width=12) (actual time=2290.390..10276.390 rows=2247704 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-08-01'::date) AND (l_shipdate < '1994-10-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=653054
                       Buffers: shared hit=245279 read=413915 written=13602
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47179.81 rows=2252324 width=0) (actual time=1766.332..1766.332 rows=2249910 loops=1)
                             Index Cond: ((l_shipdate >= '1994-08-01'::date) AND (l_shipdate < '1994-10-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6140
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.029..18.801 rows=47970 loops=1)
         Buffers: shared hit=1310
   ->  Sort  (cost=1188796.05..1188805.41 rows=3746 width=12) (actual time=26298.616..26298.618 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=552534 read=765854 written=13614
         ->  Subquery Scan on revenue5  (cost=1188489.42..1188573.70 rows=3746 width=12) (actual time=26296.707..26298.585 rows=1 loops=1)
               Buffers: shared hit=552534 read=765854 written=13614
               ->  HashAggregate  (cost=1188489.42..1188536.24 rows=3746 width=12) (actual time=26296.706..26298.582 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=552534 read=765854 written=13614
                     ->  Bitmap Heap Scan on lineitem  (cost=47742.89..1149073.75 rows=2252324 width=12) (actual time=3214.509..10860.454 rows=2247704 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-08-01'::date) AND (l_shipdate < '1994-10-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=653054
                           Buffers: shared hit=307255 read=351939 written=12
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47179.81 rows=2252324 width=0) (actual time=2681.960..2681.960 rows=2249910 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-08-01'::date) AND (l_shipdate < '1994-10-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6140
 Planning time: 2.764 ms
 Execution time: 26338.770 ms
(38 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT