BEGIN;
BEGIN
create or replace view revenue24 (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,
	revenue24
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue24
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2388786.96..2393885.38 rows=3797 width=79) (actual time=98521.392..98521.395 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue24.supplier_no)
   Buffers: shared hit=691515 read=642464 dirtied=665 written=9143
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1185631.53..1185631.54 rows=1 width=8) (actual time=52144.540..52144.540 rows=1 loops=1)
           Buffers: shared hit=313698 read=352445 written=9014
           ->  HashAggregate  (cost=1185546.10..1185584.07 rows=3797 width=12) (actual time=52050.739..52128.433 rows=100000 loops=1)
                 Buffers: shared hit=313698 read=352445 written=9014
                 ->  Bitmap Heap Scan on lineitem  (cost=48623.62..1162481.91 rows=2306419 width=12) (actual time=2948.913..47005.698 rows=2247415 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=313698 read=352445 written=9014
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48047.02 rows=2306419 width=0) (actual time=2511.309..2511.309 rows=2274343 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=1 read=6137
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.060..69.264 rows=61965 loops=1)
         Buffers: shared hit=1692
   ->  Sort  (cost=1203155.42..1203164.91 rows=3797 width=12) (actual time=98441.145..98441.146 rows=1 loops=1)
         Sort Key: revenue24.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=689823 read=642464 dirtied=665 written=9143
         ->  Subquery Scan on revenue24  (cost=1202844.24..1202929.67 rows=3797 width=12) (actual time=98398.332..98441.105 rows=1 loops=1)
               Buffers: shared hit=689823 read=642464 dirtied=665 written=9143
               ->  HashAggregate  (cost=1202844.24..1202891.70 rows=3797 width=12) (actual time=98398.331..98441.102 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=689823 read=642464 dirtied=665 written=9143
                     ->  Bitmap Heap Scan on lineitem  (cost=48623.62..1162481.91 rows=2306419 width=12) (actual time=2988.696..41592.866 rows=2247415 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=376125 read=290019 dirtied=665 written=129
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48047.02 rows=2306419 width=0) (actual time=2575.625..2575.625 rows=2274343 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=2 read=6137
 Total runtime: 98535.178 ms
(33 rows)

drop view revenue24;
DROP VIEW
COMMIT;
COMMIT