BEGIN;
BEGIN
create or replace view revenue11 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1994-04-01'
		and l_shipdate < date'1994-04-01' + 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,
	revenue11
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue11
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2357513.24..2362610.56 rows=3741 width=79) (actual time=27627.059..27627.063 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue11.supplier_no)
   Buffers: shared hit=367847 read=949958 written=20814
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1170231.84..1170231.85 rows=1 width=8) (actual time=11335.509..11335.509 rows=1 loops=1)
           Buffers: shared hit=251711 read=406631 written=6607
           ->  HashAggregate  (cost=1170147.66..1170185.07 rows=3741 width=12) (actual time=11282.817..11325.246 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=251711 read=406631 written=6607
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47581.81..1147711.32 rows=2243634 width=12) (actual time=1774.312..8847.420 rows=2243279 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-04-01'::date) AND (l_shipdate < '1994-06-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=652208
                       Buffers: shared hit=251711 read=406631 written=6607
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47020.90 rows=2243634 width=0) (actual time=1385.808..1385.808 rows=2247728 loops=1)
                             Index Cond: ((l_shipdate >= '1994-04-01'::date) AND (l_shipdate < '1994-06-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=554 read=5580 written=265
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.034..16.252 rows=40970 loops=1)
         Buffers: shared hit=1121
   ->  Sort  (cost=1187281.10..1187290.46 rows=3741 width=12) (actual time=27606.862..27606.864 rows=1 loops=1)
         Sort Key: revenue11.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=366726 read=949958 written=20814
         ->  Subquery Scan on revenue11  (cost=1186974.92..1187059.09 rows=3741 width=12) (actual time=27592.513..27606.820 rows=1 loops=1)
               Buffers: shared hit=366726 read=949958 written=20814
               ->  HashAggregate  (cost=1186974.92..1187021.68 rows=3741 width=12) (actual time=27592.512..27606.817 rows=1 loops=1)
                     Group Key: lineitem.l_suppkey
                     Filter: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=366726 read=949958 written=20814
                     ->  Bitmap Heap Scan on lineitem  (cost=47581.81..1147711.32 rows=2243634 width=12) (actual time=3064.030..13101.655 rows=2243279 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-04-01'::date) AND (l_shipdate < '1994-06-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=652208
                           Buffers: shared hit=115015 read=543327 written=14207
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47020.90 rows=2243634 width=0) (actual time=2599.206..2599.206 rows=2245705 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-04-01'::date) AND (l_shipdate < '1994-06-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=2 read=6132
 Planning time: 2.665 ms
 Execution time: 27649.093 ms
(38 rows)

drop view revenue11;
DROP VIEW
COMMIT;
COMMIT