BEGIN;
BEGIN
create or replace view revenue17 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1993-03-01'
		and l_shipdate < date'1993-03-01' + 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,
	revenue17
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue17
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2377591.42..2382689.36 rows=3765 width=79) (actual time=112234.863..112234.865 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue17.supplier_no)
   Buffers: shared hit=391162 read=939904 written=17776
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1180140.79..1180140.80 rows=1 width=8) (actual time=56674.513..56674.514 rows=1 loops=1)
           Buffers: shared hit=193966 read=470681 written=17348
           ->  HashAggregate  (cost=1180056.07..1180093.72 rows=3765 width=12) (actual time=56602.615..56662.261 rows=100000 loops=1)
                 Buffers: shared hit=193966 read=470681 written=17348
                 ->  Bitmap Heap Scan on lineitem  (cost=48126.00..1157274.44 rows=2278163 width=12) (actual time=2756.421..51567.597 rows=2250196 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-03-01'::date) AND (l_shipdate < '1993-05-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=193966 read=470681 written=17348
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47556.46 rows=2278163 width=0) (actual time=2413.171..2413.171 rows=2268475 loops=1)
                             Index Cond: ((l_shipdate >= '1993-03-01'::date) AND (l_shipdate < '1993-05-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=527 read=5617 written=354
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.092..73.771 rows=64983 loops=1)
         Buffers: shared hit=1771
   ->  Sort  (cost=1197450.62..1197460.03 rows=3765 width=12) (actual time=112150.369..112150.370 rows=1 loops=1)
         Sort Key: revenue17.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=389391 read=939904 written=17776
         ->  Subquery Scan on revenue17  (cost=1197142.30..1197227.01 rows=3765 width=12) (actual time=112115.597..112150.329 rows=1 loops=1)
               Buffers: shared hit=389391 read=939904 written=17776
               ->  HashAggregate  (cost=1197142.30..1197189.36 rows=3765 width=12) (actual time=112115.595..112150.325 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=389391 read=939904 written=17776
                     ->  Bitmap Heap Scan on lineitem  (cost=48126.00..1157274.44 rows=2278163 width=12) (actual time=3136.410..50222.779 rows=2250196 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-03-01'::date) AND (l_shipdate < '1993-05-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=195425 read=469223 written=428
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47556.46 rows=2278163 width=0) (actual time=2626.911..2626.911 rows=2267835 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-03-01'::date) AND (l_shipdate < '1993-05-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6145
 Total runtime: 112247.862 ms
(33 rows)

drop view revenue17;
DROP VIEW
COMMIT;
COMMIT