BEGIN;
BEGIN
create or replace view revenue9 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1995-06-01'
		and l_shipdate < date'1995-06-01' + 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,
	revenue9
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue9
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2371300.25..2376397.72 rows=3734 width=79) (actual time=68749.118..68749.123 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue9.supplier_no)
   Buffers: shared hit=571260 read=755774 dirtied=570 written=15775
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1177084.97..1177084.98 rows=1 width=8) (actual time=26207.745..26207.745 rows=1 loops=1)
           Buffers: shared hit=280120 read=382435 written=77
           ->  HashAggregate  (cost=1177000.95..1177038.29 rows=3734 width=12) (actual time=26140.530..26195.948 rows=100000 loops=1)
                 Buffers: shared hit=280120 read=382435 written=77
                 ->  Bitmap Heap Scan on lineitem  (cost=47671.45..1154455.95 rows=2254500 width=12) (actual time=3600.371..21609.894 rows=2244011 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=280120 read=382435 written=77
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47107.83 rows=2254500 width=0) (actual time=3212.127..3212.127 rows=2262297 loops=1)
                             Index Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=1 read=6134 written=3
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.083..35.795 rows=70652 loops=1)
         Buffers: shared hit=1923
   ->  Sort  (cost=1194215.27..1194224.60 rows=3734 width=12) (actual time=68705.459..68705.461 rows=1 loops=1)
         Sort Key: revenue9.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=569337 read=755774 dirtied=570 written=15775
         ->  Subquery Scan on revenue9  (cost=1193909.70..1193993.72 rows=3734 width=12) (actual time=68663.857..68705.422 rows=1 loops=1)
               Buffers: shared hit=569337 read=755774 dirtied=570 written=15775
               ->  HashAggregate  (cost=1193909.70..1193956.38 rows=3734 width=12) (actual time=68663.855..68705.417 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=569337 read=755774 dirtied=570 written=15775
                     ->  Bitmap Heap Scan on lineitem  (cost=47671.45..1154455.95 rows=2254500 width=12) (actual time=3094.512..37408.367 rows=2244011 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=289217 read=373339 dirtied=570 written=15698
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47107.83 rows=2254500 width=0) (actual time=2348.926..2348.926 rows=2260290 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-06-01'::date) AND (l_shipdate < '1995-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=322 read=5814
 Total runtime: 68766.514 ms
(33 rows)

drop view revenue9;
DROP VIEW
COMMIT;
COMMIT