BEGIN;
BEGIN
create or replace view revenue8 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1994-03-01'
		and l_shipdate < date'1994-03-01' + 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,
	revenue8
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue8
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2363368.58..2368466.37 rows=3755 width=79) (actual time=34569.980..34569.984 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue8.supplier_no)
   Buffers: shared hit=703149 read=616316 dirtied=352 written=40
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1173096.51..1173096.52 rows=1 width=8) (actual time=16214.841..16214.842 rows=1 loops=1)
           Buffers: shared hit=377297 read=281697
           ->  HashAggregate  (cost=1173012.03..1173049.58 rows=3755 width=12) (actual time=16127.100..16200.062 rows=100000 loops=1)
                 Buffers: shared hit=377297 read=281697
                 ->  Bitmap Heap Scan on lineitem  (cost=47895.38..1150408.57 rows=2260346 width=12) (actual time=2106.651..12009.109 rows=2244801 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-03-01'::date) AND (l_shipdate < '1994-05-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=377297 read=281697
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47330.29 rows=2260346 width=0) (actual time=1614.313..1614.313 rows=2249540 loops=1)
                             Index Cond: ((l_shipdate >= '1994-03-01'::date) AND (l_shipdate < '1994-05-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6131
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.042..23.396 rows=53995 loops=1)
         Buffers: shared hit=1476
   ->  Sort  (cost=1190272.05..1190281.44 rows=3755 width=12) (actual time=34540.936..34540.937 rows=1 loops=1)
         Sort Key: revenue8.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=701673 read=616316 dirtied=352 written=40
         ->  Subquery Scan on revenue8  (cost=1189964.62..1190049.11 rows=3755 width=12) (actual time=34533.328..34540.905 rows=1 loops=1)
               Buffers: shared hit=701673 read=616316 dirtied=352 written=40
               ->  HashAggregate  (cost=1189964.62..1190011.56 rows=3755 width=12) (actual time=34533.324..34540.901 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=701673 read=616316 dirtied=352 written=40
                     ->  Bitmap Heap Scan on lineitem  (cost=47895.38..1150408.57 rows=2260346 width=12) (actual time=2868.146..14348.904 rows=2244801 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-03-01'::date) AND (l_shipdate < '1994-05-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=324376 read=334619 dirtied=352 written=40
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47330.29 rows=2260346 width=0) (actual time=2473.815..2473.815 rows=2249540 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-03-01'::date) AND (l_shipdate < '1994-05-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=4 read=6128 written=15
 Total runtime: 34590.631 ms
(33 rows)

drop view revenue8;
DROP VIEW
COMMIT;
COMMIT