BEGIN;
BEGIN
create or replace view revenue19 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1993-06-01'
		and l_shipdate < date'1993-06-01' + 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,
	revenue19
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue19
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2366314.67..2371412.67 rows=3769 width=79) (actual time=98748.199..98748.203 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue19.supplier_no)
   Buffers: shared hit=675642 read=645441 written=2
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1174536.18..1174536.19 rows=1 width=8) (actual time=46446.696..46446.696 rows=1 loops=1)
           Buffers: shared hit=365021 read=295255
           ->  HashAggregate  (cost=1174451.38..1174489.07 rows=3769 width=12) (actual time=46357.566..46430.874 rows=100000 loops=1)
                 Buffers: shared hit=365021 read=295255
                 ->  Bitmap Heap Scan on lineitem  (cost=48057.33..1151760.16 rows=2269122 width=12) (actual time=2987.874..41531.831 rows=2248010 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-06-01'::date) AND (l_shipdate < '1993-08-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=365021 read=295255
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47490.05 rows=2269122 width=0) (actual time=2542.091..2542.091 rows=2254677 loops=1)
                             Index Cond: ((l_shipdate >= '1993-06-01'::date) AND (l_shipdate < '1993-08-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6140
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.099..15.940 rows=18896 loops=1)
         Buffers: shared hit=529 read=1
   ->  Sort  (cost=1191778.48..1191787.90 rows=3769 width=12) (actual time=98729.049..98729.050 rows=1 loops=1)
         Sort Key: revenue19.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=675113 read=645440 written=2
         ->  Subquery Scan on revenue19  (cost=1191469.79..1191554.60 rows=3769 width=12) (actual time=98706.031..98729.019 rows=1 loops=1)
               Buffers: shared hit=675113 read=645440 written=2
               ->  HashAggregate  (cost=1191469.79..1191516.91 rows=3769 width=12) (actual time=98706.029..98729.015 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=675113 read=645440 written=2
                     ->  Bitmap Heap Scan on lineitem  (cost=48057.33..1151760.16 rows=2269122 width=12) (actual time=2940.104..47156.375 rows=2248010 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-06-01'::date) AND (l_shipdate < '1993-08-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=310092 read=350185 written=2
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47490.05 rows=2269122 width=0) (actual time=2559.398..2559.398 rows=2254677 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-06-01'::date) AND (l_shipdate < '1993-08-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6141
 Total runtime: 98763.682 ms
(33 rows)

drop view revenue19;
DROP VIEW
COMMIT;
COMMIT