BEGIN;
BEGIN
create or replace view revenue10 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-11-01'
		and l_shipdate < date'1995-11-01' + 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,
	revenue10
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue10
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2361329.09..2366426.86 rows=3754 width=79) (actual time=29709.117..29709.121 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue10.supplier_no)
   Buffers: shared hit=715101 read=603697 dirtied=224 written=485
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1172075.43..1172075.44 rows=1 width=8) (actual time=14185.526..14185.526 rows=1 loops=1)
           Buffers: shared hit=297056 read=361701 written=34
           ->  HashAggregate  (cost=1171990.96..1172028.50 rows=3754 width=12) (actual time=14110.114..14172.425 rows=100000 loops=1)
                 Buffers: shared hit=297056 read=361701 written=34
                 ->  Bitmap Heap Scan on lineitem  (cost=47927.14..1149383.83 rows=2260713 width=12) (actual time=1943.618..10458.620 rows=2243625 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=297056 read=361701 written=34
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47361.96 rows=2260713 width=0) (actual time=1553.799..1553.799 rows=2245876 loops=1)
                             Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=2 read=6126
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.067..23.764 rows=46963 loops=1)
         Buffers: shared hit=157 read=1126
   ->  Sort  (cost=1189253.65..1189263.04 rows=3754 width=12) (actual time=29680.594..29680.596 rows=1 loops=1)
         Sort Key: revenue10.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=714944 read=602571 dirtied=224 written=485
         ->  Subquery Scan on revenue10  (cost=1188946.31..1189030.77 rows=3754 width=12) (actual time=29664.347..29680.560 rows=1 loops=1)
               Buffers: shared hit=714944 read=602571 dirtied=224 written=485
               ->  HashAggregate  (cost=1188946.31..1188993.23 rows=3754 width=12) (actual time=29664.344..29680.557 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=714944 read=602571 dirtied=224 written=485
                     ->  Bitmap Heap Scan on lineitem  (cost=47927.14..1149383.83 rows=2260713 width=12) (actual time=2161.309..10168.324 rows=2243625 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=417888 read=240870 dirtied=224 written=451
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47361.96 rows=2260713 width=0) (actual time=1782.823..1782.823 rows=2245876 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=8 read=6121 written=2
 Total runtime: 29745.497 ms
(33 rows)

drop view revenue10;
DROP VIEW
COMMIT;
COMMIT