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 >= '1994-07-01'
		and l_shipdate < date'1994-07-01' + 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=2359595.93..2364694.03 rows=3776 width=79) (actual time=31337.994..31337.997 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue11.supplier_no)
   Buffers: shared hit=475215 read=843104 written=38768
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1171194.73..1171194.74 rows=1 width=8) (actual time=12107.274..12107.274 rows=1 loops=1)
           Buffers: shared hit=456269 read=202625 written=10391
           ->  HashAggregate  (cost=1171109.77..1171147.53 rows=3776 width=12) (actual time=12014.317..12088.868 rows=100000 loops=1)
                 Buffers: shared hit=456269 read=202625 written=10391
                 ->  Bitmap Heap Scan on lineitem  (cost=48027.72..1148466.95 rows=2264282 width=12) (actual time=2397.915..8488.788 rows=2247932 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-07-01'::date) AND (l_shipdate < '1994-09-29 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=456269 read=202625 written=10391
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47461.65 rows=2264282 width=0) (actual time=1944.808..1944.808 rows=2252389 loops=1)
                             Index Cond: ((l_shipdate >= '1994-07-01'::date) AND (l_shipdate < '1994-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=589 read=5557 written=47
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.028..11.421 rows=18903 loops=1)
         Buffers: shared hit=530
   ->  Sort  (cost=1188401.19..1188410.63 rows=3776 width=12) (actual time=31323.271..31323.271 rows=1 loops=1)
         Sort Key: revenue11.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=474685 read=843104 written=38768
         ->  Subquery Scan on revenue11  (cost=1188091.88..1188176.84 rows=3776 width=12) (actual time=31317.032..31323.239 rows=1 loops=1)
               Buffers: shared hit=474685 read=843104 written=38768
               ->  HashAggregate  (cost=1188091.88..1188139.08 rows=3776 width=12) (actual time=31317.030..31323.234 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=474685 read=843104 written=38768
                     ->  Bitmap Heap Scan on lineitem  (cost=48027.72..1148466.95 rows=2264282 width=12) (actual time=3115.591..15490.518 rows=2247932 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-07-01'::date) AND (l_shipdate < '1994-09-29 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=18416 read=640479 written=28377
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47461.65 rows=2264282 width=0) (actual time=2750.060..2750.060 rows=2250192 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-07-01'::date) AND (l_shipdate < '1994-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=2 read=6145
 Total runtime: 31367.139 ms
(33 rows)

drop view revenue11;
DROP VIEW
COMMIT;
COMMIT