BEGIN;
BEGIN
create or replace view revenue17 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-08-01'
		and l_shipdate < date'1996-08-01' + 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,
	revenue17
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue17
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2372293.69..2377390.90 rows=3716 width=79) (actual time=58184.283..58184.285 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue17.supplier_no)
   Buffers: shared hit=609588 read=717789 dirtied=1098 written=17712
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1177614.72..1177614.73 rows=1 width=8) (actual time=28710.710..28710.710 rows=1 loops=1)
           Buffers: shared hit=267120 read=395722 written=729
           ->  HashAggregate  (cost=1177531.11..1177568.27 rows=3716 width=12) (actual time=28612.431..28694.630 rows=100000 loops=1)
                 Buffers: shared hit=267120 read=395722 written=729
                 ->  Bitmap Heap Scan on lineitem  (cost=47466.81..1155072.59 rows=2245852 width=12) (actual time=2342.889..24443.239 rows=2244998 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-08-01'::date) AND (l_shipdate < '1996-10-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=267120 read=395722 written=729
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46905.35 rows=2245852 width=0) (actual time=1925.514..1925.514 rows=2265021 loops=1)
                             Index Cond: ((l_shipdate >= '1996-08-01'::date) AND (l_shipdate < '1996-10-30 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=53 read=6085 written=366
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.090..42.703 rows=61965 loops=1)
         Buffers: shared hit=1691 read=1
   ->  Sort  (cost=1194678.96..1194688.25 rows=3716 width=12) (actual time=58133.927..58133.928 rows=1 loops=1)
         Sort Key: revenue17.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=607897 read=717788 dirtied=1098 written=17712
         ->  Subquery Scan on revenue17  (cost=1194375.00..1194458.61 rows=3716 width=12) (actual time=58092.182..58133.884 rows=1 loops=1)
               Buffers: shared hit=607897 read=717788 dirtied=1098 written=17712
               ->  HashAggregate  (cost=1194375.00..1194421.45 rows=3716 width=12) (actual time=58092.180..58133.877 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=607897 read=717788 dirtied=1098 written=17712
                     ->  Bitmap Heap Scan on lineitem  (cost=47466.81..1155072.59 rows=2245852 width=12) (actual time=2763.931..24865.377 rows=2244998 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-08-01'::date) AND (l_shipdate < '1996-10-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=340777 read=322066 dirtied=1098 written=16983
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46905.35 rows=2245852 width=0) (actual time=2100.121..2100.121 rows=2262820 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-08-01'::date) AND (l_shipdate < '1996-10-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=11 read=6128
 Total runtime: 58196.365 ms
(33 rows)

drop view revenue17;
DROP VIEW
COMMIT;
COMMIT