BEGIN;
BEGIN
create or replace view revenue14 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-05-01'
		and l_shipdate < date'1996-05-01' + 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,
	revenue14
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue14
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2377529.48..2382627.31 rows=3758 width=79) (actual time=35068.998..35069.001 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue14.supplier_no)
   Buffers: shared hit=443893 read=884927 dirtied=475 written=671
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1180112.22..1180112.23 rows=1 width=8) (actual time=15617.779..15617.780 rows=1 loops=1)
           Buffers: shared hit=197396 read=466035 written=671
           ->  HashAggregate  (cost=1180027.67..1180065.25 rows=3758 width=12) (actual time=15569.765..15606.838 rows=100000 loops=1)
                 Buffers: shared hit=197396 read=466035 written=671
                 ->  Bitmap Heap Scan on lineitem  (cost=48112.07..1157251.83 rows=2277584 width=12) (actual time=2073.046..12264.322 rows=2246262 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-05-01'::date) AND (l_shipdate < '1996-07-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=197396 read=466035 written=671
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47542.67 rows=2277584 width=0) (actual time=1690.034..1690.034 rows=2263816 loops=1)
                             Index Cond: ((l_shipdate >= '1996-05-01'::date) AND (l_shipdate < '1996-07-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6134
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.094..42.204 rows=71847 loops=1)
         Buffers: shared hit=1956 read=1
   ->  Sort  (cost=1197417.25..1197426.64 rows=3758 width=12) (actual time=35016.118..35016.119 rows=1 loops=1)
         Sort Key: revenue14.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=441937 read=884926 dirtied=475 written=671
         ->  Subquery Scan on revenue14  (cost=1197109.55..1197194.10 rows=3758 width=12) (actual time=35005.955..35016.088 rows=1 loops=1)
               Buffers: shared hit=441937 read=884926 dirtied=475 written=671
               ->  HashAggregate  (cost=1197109.55..1197156.52 rows=3758 width=12) (actual time=35005.953..35016.084 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=441937 read=884926 dirtied=475 written=671
                     ->  Bitmap Heap Scan on lineitem  (cost=48112.07..1157251.83 rows=2277584 width=12) (actual time=2561.592..15366.146 rows=2246262 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-05-01'::date) AND (l_shipdate < '1996-07-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=244541 read=418891 dirtied=475
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47542.67 rows=2277584 width=0) (actual time=2133.293..2133.293 rows=2263816 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-05-01'::date) AND (l_shipdate < '1996-07-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6135
 Total runtime: 35092.138 ms
(33 rows)

drop view revenue14;
DROP VIEW
COMMIT;
COMMIT