BEGIN;
BEGIN
create or replace view revenue7 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-06-01'
		and l_shipdate < date'1996-06-01' + 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,
	revenue7
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue7
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2389000.71..2394098.58 rows=3760 width=79) (actual time=35245.209..35245.212 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue7.supplier_no)
   Buffers: shared hit=527738 read=806146 written=35795
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1185808.88..1185808.89 rows=1 width=8) (actual time=14080.705..14080.705 rows=1 loops=1)
           Buffers: shared hit=374968 read=291808 written=109
           ->  HashAggregate  (cost=1185724.28..1185761.88 rows=3760 width=12) (actual time=13999.135..14068.294 rows=100000 loops=1)
                 Buffers: shared hit=374968 read=291808 written=109
                 ->  Bitmap Heap Scan on lineitem  (cost=48206.38..1162844.72 rows=2287956 width=12) (actual time=2040.265..10452.063 rows=2243929 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=374968 read=291808 written=109
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47634.39 rows=2287956 width=0) (actual time=1620.540..1620.540 rows=2276824 loops=1)
                             Index Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=6 read=6126 written=5
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.087..7.865 rows=11829 loops=1)
         Buffers: shared hit=330 read=1
   ->  Sort  (cost=1203191.83..1203201.23 rows=3760 width=12) (actual time=35235.417..35235.418 rows=1 loops=1)
         Sort Key: revenue7.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=527408 read=806145 written=35795
         ->  Subquery Scan on revenue7  (cost=1202883.95..1202968.55 rows=3760 width=12) (actual time=35193.322..35235.385 rows=1 loops=1)
               Buffers: shared hit=527408 read=806145 written=35795
               ->  HashAggregate  (cost=1202883.95..1202930.95 rows=3760 width=12) (actual time=35193.320..35235.379 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=527408 read=806145 written=35795
                     ->  Bitmap Heap Scan on lineitem  (cost=48206.38..1162844.72 rows=2287956 width=12) (actual time=2244.260..16908.535 rows=2243929 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=152440 read=514337 written=35686
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47634.39 rows=2287956 width=0) (actual time=1770.266..1770.266 rows=2274804 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-06-01'::date) AND (l_shipdate < '1996-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=158 read=5975 written=14
 Total runtime: 35271.054 ms
(33 rows)

drop view revenue7;
DROP VIEW
COMMIT;
COMMIT