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 >= '1993-11-01'
		and l_shipdate < date'1993-11-01' + 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,
	revenue0
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue0
	)
order by
	s_suppkey;
                                                                                      QUERY PLAN                                                                                       
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2353082.26..2358178.35 rows=3659 width=79) (actual time=16477.278..16477.279 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue0.supplier_no)
   Buffers: shared hit=306917 read=1009734 written=10
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1168185.12..1168185.13 rows=1 width=8) (actual time=6378.326..6378.326 rows=1 loops=1)
           Buffers: shared hit=304719 read=353496 written=10
           ->  HashAggregate  (cost=1168102.79..1168139.38 rows=3659 width=12) (actual time=6348.605..6369.058 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=304719 read=353496 written=10
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=46643.94..1146109.25 rows=2199354 width=12) (actual time=832.322..4914.577 rows=2244040 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=652086
                       Buffers: shared hit=304719 read=353496 written=10
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46094.11 rows=2199354 width=0) (actual time=617.691..617.691 rows=2244040 loops=1)
                             Index Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6129
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.047..3.547 rows=7917 loops=1)
         Buffers: shared hit=28 read=193
   ->  Sort  (cost=1184896.84..1184905.99 rows=3659 width=12) (actual time=16473.010..16473.010 rows=1 loops=1)
         Sort Key: revenue0.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=306889 read=1009541 written=10
         ->  Subquery Scan on revenue0  (cost=1184597.95..1184680.28 rows=3659 width=12) (actual time=16471.388..16472.956 rows=1 loops=1)
               Buffers: shared hit=306889 read=1009541 written=10
               ->  HashAggregate  (cost=1184597.95..1184643.69 rows=3659 width=12) (actual time=16471.386..16472.953 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=306889 read=1009541 written=10
                     ->  Bitmap Heap Scan on lineitem  (cost=46643.94..1146109.25 rows=2199354 width=12) (actual time=929.826..8363.915 rows=2244040 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=652086
                           Buffers: shared hit=2170 read=656045
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46094.11 rows=2199354 width=0) (actual time=714.023..714.023 rows=2244040 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-11-01'::date) AND (l_shipdate < '1994-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6129
 Planning time: 4.569 ms
 Execution time: 16483.213 ms
(38 rows)

drop view revenue0;
DROP VIEW
COMMIT;
COMMIT