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 >= '1995-11-01'
		and l_shipdate < date'1995-11-01' + 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,
	revenue14
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue14
	)
order by
	s_suppkey;
                                                                                      QUERY PLAN                                                                                       
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2379273.03..2384371.63 rows=3826 width=79) (actual time=17891.641..17891.647 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue14.supplier_no)
   Buffers: shared hit=881398 read=446179 written=561
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1180838.12..1180838.13 rows=1 width=8) (actual time=8614.055..8614.055 rows=1 loops=1)
           Buffers: shared hit=379285 read=283376 written=261
           ->  HashAggregate  (cost=1180752.03..1180790.29 rows=3826 width=12) (actual time=8571.027..8603.566 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=379285 read=283376 written=261
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=48937.96..1157593.60 rows=2315843 width=12) (actual time=1202.393..6787.619 rows=2243536 loops=1)
                       Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=656533
                       Buffers: shared hit=379285 read=283376 written=261
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48359.00 rows=2315843 width=0) (actual time=917.763..917.763 rows=2259357 loops=1)
                             Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6128 written=1
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.032..34.112 rows=82975 loops=1)
         Buffers: shared hit=2255
   ->  Sort  (cost=1198434.62..1198444.18 rows=3826 width=12) (actual time=17849.354..17849.356 rows=1 loops=1)
         Sort Key: revenue14.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=879143 read=446179 written=561
         ->  Subquery Scan on revenue14  (cost=1198120.85..1198206.94 rows=3826 width=12) (actual time=17841.016..17849.322 rows=1 loops=1)
               Buffers: shared hit=879143 read=446179 written=561
               ->  HashAggregate  (cost=1198120.85..1198168.68 rows=3826 width=12) (actual time=17841.014..17849.317 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=879143 read=446179 written=561
                     ->  Bitmap Heap Scan on lineitem  (cost=48937.96..1157593.60 rows=2315843 width=12) (actual time=1291.241..6944.631 rows=2243536 loops=1)
                           Recheck Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=656533
                           Buffers: shared hit=499858 read=162803 written=300
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..48359.00 rows=2315843 width=0) (actual time=985.005..985.005 rows=2259357 loops=1)
                                 Index Cond: ((l_shipdate >= '1995-11-01'::date) AND (l_shipdate < '1996-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6128 written=9
 Planning time: 3.305 ms
 Execution time: 17908.317 ms
(38 rows)

drop view revenue14;
DROP VIEW
COMMIT;
COMMIT