BEGIN;
BEGIN
create or replace view revenue8 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-07-01'
		and l_shipdate < date'1996-07-01' + 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,
	revenue8
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue8
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2361128.36..2366225.68 rows=3724 width=79) (actual time=31182.696..31182.700 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue8.supplier_no)
   Buffers: shared hit=861322 read=459085 dirtied=330 written=937
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1172061.51..1172061.52 rows=1 width=8) (actual time=13957.260..13957.260 rows=1 loops=1)
           Buffers: shared hit=471718 read=187653
           ->  HashAggregate  (cost=1171977.72..1172014.96 rows=3724 width=12) (actual time=13880.966..13938.982 rows=100000 loops=1)
                 Buffers: shared hit=471718 read=187653
                 ->  Bitmap Heap Scan on lineitem  (cost=47421.57..1149598.46 rows=2237926 width=12) (actual time=3505.304..10600.112 rows=2245790 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=471718 read=187653
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46862.09 rows=2237926 width=0) (actual time=3017.453..3017.453 rows=2250224 loops=1)
                             Index Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=6131 read=3
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.070..28.840 rows=60982 loops=1)
         Buffers: shared hit=169 read=1495
   ->  Sort  (cost=1189066.84..1189076.15 rows=3724 width=12) (actual time=31146.689..31146.690 rows=1 loops=1)
         Sort Key: revenue8.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=861153 read=457590 dirtied=330 written=937
         ->  Subquery Scan on revenue8  (cost=1188762.17..1188845.96 rows=3724 width=12) (actual time=31091.091..31146.655 rows=1 loops=1)
               Buffers: shared hit=861153 read=457590 dirtied=330 written=937
               ->  HashAggregate  (cost=1188762.17..1188808.72 rows=3724 width=12) (actual time=31091.089..31146.652 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=861153 read=457590 dirtied=330 written=937
                     ->  Bitmap Heap Scan on lineitem  (cost=47421.57..1149598.46 rows=2237926 width=12) (actual time=4240.646..13326.663 rows=2245790 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=389435 read=269937 dirtied=330 written=937
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46862.09 rows=2237926 width=0) (actual time=3767.467..3767.467 rows=2250224 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=130 read=6005 written=400
 Total runtime: 31206.199 ms
(33 rows)

drop view revenue8;
DROP VIEW
COMMIT;
COMMIT