BEGIN;
BEGIN
create or replace view revenue0 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-07-01'
		and l_shipdate < date'1996-07-01' + 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,
	revenue0
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue0
	)
order by
	s_suppkey;
                                                                                      QUERY PLAN                                                                                       
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2359202.71..2364300.71 rows=3769 width=79) (actual time=13211.375..13211.381 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue0.supplier_no)
   Buffers: shared hit=731964 read=585841
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1171012.99..1171013.00 rows=1 width=8) (actual time=3764.459..3764.460 rows=1 loops=1)
           Buffers: shared hit=657007 read=1063
           ->  HashAggregate  (cost=1170928.19..1170965.88 rows=3769 width=12) (actual time=3734.363..3754.913 rows=100000 loops=1)
                 Buffers: shared hit=657007 read=1063
                 ->  Bitmap Heap Scan on lineitem  (cost=47943.71..1148324.40 rows=2260379 width=12) (actual time=808.224..2524.301 rows=2245864 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=657007 read=1063
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47378.62 rows=2260379 width=0) (actual time=586.563..586.563 rows=2245864 loops=1)
                             Index Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=6134
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.058..26.358 rows=60982 loops=1)
         Buffers: shared hit=1293 read=371
   ->  Sort  (cost=1188189.71..1188199.13 rows=3769 width=12) (actual time=13179.359..13179.361 rows=1 loops=1)
         Sort Key: revenue0.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=730671 read=585470
         ->  Subquery Scan on revenue0  (cost=1187881.03..1187965.83 rows=3769 width=12) (actual time=13163.117..13179.303 rows=1 loops=1)
               Buffers: shared hit=730671 read=585470
               ->  HashAggregate  (cost=1187881.03..1187928.14 rows=3769 width=12) (actual time=13163.117..13179.302 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=730671 read=585470
                     ->  Bitmap Heap Scan on lineitem  (cost=47943.71..1148324.40 rows=2260379 width=12) (actual time=913.769..7733.153 rows=2245864 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=73664 read=584407
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47378.62 rows=2260379 width=0) (actual time=696.767..696.767 rows=2245864 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-07-01'::date) AND (l_shipdate < '1996-09-29 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6135
 Total runtime: 13218.492 ms
(33 rows)

drop view revenue0;
DROP VIEW
COMMIT;
COMMIT