BEGIN;
BEGIN
create or replace view revenue13 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1993-11-01'
		and l_shipdate < date'1993-11-01' + 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,
	revenue13
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue13
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2387122.15..2392218.91 rows=3686 width=79) (actual time=38321.162..38321.166 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue13.supplier_no)
   Buffers: shared hit=350212 read=984683 written=191
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1185020.73..1185020.74 rows=1 width=8) (actual time=18383.533..18383.533 rows=1 loops=1)
           Buffers: shared hit=183637 read=483699
           ->  HashAggregate  (cost=1184937.79..1184974.65 rows=3686 width=12) (actual time=18290.138..18366.075 rows=100000 loops=1)
                 Buffers: shared hit=183637 read=483699
                 ->  Bitmap Heap Scan on lineitem  (cost=47348.02..1162454.68 rows=2248311 width=12) (actual time=2375.212..14177.951 rows=2244680 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=183637 read=483699
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46785.94 rows=2248311 width=0) (actual time=1958.531..1958.531 rows=2275376 loops=1)
                             Index Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6129
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.071..5.048 rows=7917 loops=1)
         Buffers: shared hit=221 read=1
   ->  Sort  (cost=1202101.42..1202110.63 rows=3686 width=12) (actual time=38314.774..38314.774 rows=1 loops=1)
         Sort Key: revenue13.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=349991 read=984682 written=191
         ->  Subquery Scan on revenue13  (cost=1201800.12..1201883.06 rows=3686 width=12) (actual time=38308.185..38314.736 rows=1 loops=1)
               Buffers: shared hit=349991 read=984682 written=191
               ->  HashAggregate  (cost=1201800.12..1201846.20 rows=3686 width=12) (actual time=38308.183..38314.732 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=349991 read=984682 written=191
                     ->  Bitmap Heap Scan on lineitem  (cost=47348.02..1162454.68 rows=2248311 width=12) (actual time=2402.099..15781.181 rows=2244680 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=166354 read=500983 written=191
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46785.94 rows=2248311 width=0) (actual time=2028.279..2028.279 rows=2275376 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6130 written=5
 Total runtime: 38344.238 ms
(33 rows)

drop view revenue13;
DROP VIEW
COMMIT;
COMMIT