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 >= '1993-07-01'
		and l_shipdate < date'1993-07-01' + 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=2361528.10..2366626.53 rows=3798 width=79) (actual time=35079.494..35079.499 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue11.supplier_no)
   Buffers: shared hit=771556 read=547334 dirtied=153 written=21917
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1172087.69..1172087.70 rows=1 width=8) (actual time=13679.194..13679.194 rows=1 loops=1)
           Buffers: shared hit=547360 read=111321 written=8393
           ->  HashAggregate  (cost=1172002.24..1172040.22 rows=3798 width=12) (actual time=13630.764..13669.242 rows=100000 loops=1)
                 Buffers: shared hit=547360 read=111321 written=8393
                 ->  Bitmap Heap Scan on lineitem  (cost=48437.59..1149166.38 rows=2283586 width=12) (actual time=2730.490..9777.650 rows=2246890 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-07-01'::date) AND (l_shipdate < '1993-09-29 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=547360 read=111321 written=8393
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47866.69 rows=2283586 width=0) (actual time=2320.988..2320.988 rows=2251292 loops=1)
                             Index Cond: ((l_shipdate >= '1993-07-01'::date) AND (l_shipdate < '1993-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=819 read=5324 written=25
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.040..20.071 rows=55988 loops=1)
         Buffers: shared hit=1527
   ->  Sort  (cost=1189440.40..1189449.89 rows=3798 width=12) (actual time=35054.092..35054.094 rows=1 loops=1)
         Sort Key: revenue11.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=770029 read=547334 dirtied=153 written=21917
         ->  Subquery Scan on revenue11  (cost=1189129.13..1189214.59 rows=3798 width=12) (actual time=35026.714..35054.037 rows=1 loops=1)
               Buffers: shared hit=770029 read=547334 dirtied=153 written=21917
               ->  HashAggregate  (cost=1189129.13..1189176.61 rows=3798 width=12) (actual time=35026.710..35054.031 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=770029 read=547334 dirtied=153 written=21917
                     ->  Bitmap Heap Scan on lineitem  (cost=48437.59..1149166.38 rows=2283586 width=12) (actual time=2767.371..17038.548 rows=2246890 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-07-01'::date) AND (l_shipdate < '1993-09-29 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=222669 read=436013 dirtied=153 written=13524
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47866.69 rows=2283586 width=0) (actual time=2251.733..2251.733 rows=2249015 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-07-01'::date) AND (l_shipdate < '1993-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6144
 Total runtime: 35101.933 ms
(33 rows)

drop view revenue11;
DROP VIEW
COMMIT;
COMMIT