BEGIN;
BEGIN
create or replace view revenue14 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-07-01'
		and l_shipdate < date'1995-07-01' + 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,
	revenue14
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue14
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2377123.53..2382221.42 rows=3762 width=79) (actual time=31030.734..31030.739 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue14.supplier_no)
   Buffers: shared hit=440564 read=888348 dirtied=647 written=299
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1179924.42..1179924.43 rows=1 width=8) (actual time=16041.959..16041.959 rows=1 loops=1)
           Buffers: shared hit=131233 read=532662
           ->  HashAggregate  (cost=1179839.77..1179877.39 rows=3762 width=12) (actual time=15970.089..16030.985 rows=100000 loops=1)
                 Buffers: shared hit=131233 read=532662
                 ->  Bitmap Heap Scan on lineitem  (cost=48026.22..1157104.75 rows=2273502 width=12) (actual time=1795.890..12044.838 rows=2247668 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=131233 read=532662
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47457.85 rows=2273502 width=0) (actual time=1424.127..1424.127 rows=2265848 loops=1)
                             Index Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6139
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.099..17.220 rows=40959 loops=1)
         Buffers: shared hit=1120 read=1
   ->  Sort  (cost=1197199.10..1197208.50 rows=3762 width=12) (actual time=31009.092..31009.093 rows=1 loops=1)
         Sort Key: revenue14.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=439444 read=888347 dirtied=647 written=299
         ->  Subquery Scan on revenue14  (cost=1196891.04..1196975.68 rows=3762 width=12) (actual time=31003.146..31009.059 rows=1 loops=1)
               Buffers: shared hit=439444 read=888347 dirtied=647 written=299
               ->  HashAggregate  (cost=1196891.04..1196938.06 rows=3762 width=12) (actual time=31003.143..31009.054 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=439444 read=888347 dirtied=647 written=299
                     ->  Bitmap Heap Scan on lineitem  (cost=48026.22..1157104.75 rows=2273502 width=12) (actual time=1751.380..11086.266 rows=2247668 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=308211 read=355685 dirtied=647 written=299
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47457.85 rows=2273502 width=0) (actual time=1378.359..1378.359 rows=2265848 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-07-01'::date) AND (l_shipdate < '1995-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6140
 Total runtime: 31045.749 ms
(33 rows)

drop view revenue14;
DROP VIEW
COMMIT;
COMMIT