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 >= '1994-11-01'
		and l_shipdate < date'1994-11-01' + 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=2377507.75..2382604.79 rows=3723 width=79) (actual time=23496.701..23496.706 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue24.supplier_no)
   Buffers: shared hit=701965 read=629072 written=1474
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1180181.30..1180181.31 rows=1 width=8) (actual time=9267.506..9267.506 rows=1 loops=1)
           Buffers: shared hit=332148 read=332647 written=1017
           ->  HashAggregate  (cost=1180097.53..1180134.76 rows=3723 width=12) (actual time=9221.200..9256.625 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=332148 read=332647 written=1017
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47638.08..1157532.15 rows=2256538 width=12) (actual time=1274.385..7279.055 rows=2246705 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=658658
                       Buffers: shared hit=332148 read=332647 written=1017
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47073.95 rows=2256538 width=0) (actual time=967.380..967.380 rows=2267178 loops=1)
                             Index Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6137 written=9
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.030..19.649 rows=52960 loops=1)
         Buffers: shared hit=1447
   ->  Sort  (cost=1197326.15..1197335.46 rows=3723 width=12) (actual time=23471.599..23471.601 rows=1 loops=1)
         Sort Key: revenue24.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=700518 read=629072 written=1474
         ->  Subquery Scan on revenue24  (cost=1197021.56..1197105.33 rows=3723 width=12) (actual time=23450.199..23471.563 rows=1 loops=1)
               Buffers: shared hit=700518 read=629072 written=1474
               ->  HashAggregate  (cost=1197021.56..1197068.10 rows=3723 width=12) (actual time=23450.197..23471.558 rows=1 loops=1)
                     Group Key: lineitem.l_suppkey
                     Filter: (sum((lineitem.l_extendedprice * (1::double precision - lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=700518 read=629072 written=1474
                     ->  Bitmap Heap Scan on lineitem  (cost=47638.08..1157532.15 rows=2256538 width=12) (actual time=3037.864..10178.190 rows=2246705 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=658658
                           Buffers: shared hit=368370 read=296425 written=457
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47073.95 rows=2256538 width=0) (actual time=2611.776..2611.776 rows=2267178 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=1 read=6136 written=3
 Planning time: 3.139 ms
 Execution time: 23511.927 ms
(38 rows)

drop view revenue24;
DROP VIEW
COMMIT;
COMMIT