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 >= '1997-02-01'
		and l_shipdate < date'1997-02-01' + 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=2379416.71..2384515.47 rows=3837 width=79) (actual time=20809.998..20810.001 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue14.supplier_no)
   Buffers: shared hit=762074 read=566682 dirtied=1 written=17426
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1180904.28..1180904.29 rows=1 width=8) (actual time=10166.076..10166.076 rows=1 loops=1)
           Buffers: shared hit=322848 read=340511 dirtied=1 written=17117
           ->  HashAggregate  (cost=1180817.94..1180856.31 rows=3837 width=12) (actual time=10098.785..10155.784 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=322848 read=340511 dirtied=1 written=17117
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=48968.47..1157645.35 rows=2317259 width=12) (actual time=1396.200..7344.096 rows=2249895 loops=1)
                       Recheck Cond: ((l_shipdate >= '1997-02-01'::date) AND (l_shipdate < '1997-05-02 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=657215
                       Buffers: shared hit=322848 read=340511 dirtied=1 written=17117
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48389.15 rows=2317259 width=0) (actual time=1047.314..1047.314 rows=2265540 loops=1)
                             Index Cond: ((l_shipdate >= '1997-02-01'::date) AND (l_shipdate < '1997-05-02 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6144 written=32
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.035..27.304 rows=74945 loops=1)
         Buffers: shared hit=2038
   ->  Sort  (cost=1198512.13..1198521.72 rows=3837 width=12) (actual time=20775.253..20775.254 rows=1 loops=1)
         Sort Key: revenue14.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=760036 read=566682 dirtied=1 written=17426
         ->  Subquery Scan on revenue14  (cost=1198197.39..1198283.72 rows=3837 width=12) (actual time=20753.692..20775.220 rows=1 loops=1)
               Buffers: shared hit=760036 read=566682 dirtied=1 written=17426
               ->  HashAggregate  (cost=1198197.39..1198245.35 rows=3837 width=12) (actual time=20753.690..20775.216 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=760036 read=566682 dirtied=1 written=17426
                     ->  Bitmap Heap Scan on lineitem  (cost=48968.47..1157645.35 rows=2317259 width=12) (actual time=2098.157..7965.130 rows=2249895 loops=1)
                           Recheck Cond: ((l_shipdate >= '1997-02-01'::date) AND (l_shipdate < '1997-05-02 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=657215
                           Buffers: shared hit=437188 read=226171 written=309
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48389.15 rows=2317259 width=0) (actual time=1613.125..1613.125 rows=2265540 loops=1)
                                 Index Cond: ((l_shipdate >= '1997-02-01'::date) AND (l_shipdate < '1997-05-02 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6144 written=28
 Planning time: 3.008 ms
 Execution time: 20825.548 ms
(38 rows)

drop view revenue14;
DROP VIEW
COMMIT;
COMMIT