BEGIN;
BEGIN
create or replace view revenue19 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1996-11-01'
		and l_shipdate < date'1996-11-01' + 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,
	revenue19
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue19
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2366954.37..2372052.53 rows=3780 width=79) (actual time=73870.090..73870.093 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue19.supplier_no)
   Buffers: shared hit=579088 read=743589 written=63
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1174831.51..1174831.52 rows=1 width=8) (actual time=32997.358..32997.358 rows=1 loops=1)
           Buffers: shared hit=288016 read=372640 written=31
           ->  HashAggregate  (cost=1174746.46..1174784.26 rows=3780 width=12) (actual time=32906.521..32978.571 rows=100000 loops=1)
                 Buffers: shared hit=288016 read=372640 written=31
                 ->  Bitmap Heap Scan on lineitem  (cost=48191.36..1151990.82 rows=2275564 width=12) (actual time=2943.024..28325.035 rows=2246079 loops=1)
                       Recheck Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=288016 read=372640 written=31
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47622.47 rows=2275564 width=0) (actual time=2491.777..2491.777 rows=2253051 loops=1)
                             Index Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6138
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.077..68.605 rows=49906 loops=1)
         Buffers: shared hit=1364
   ->  Sort  (cost=1192122.85..1192132.30 rows=3780 width=12) (actual time=73793.030..73793.031 rows=1 loops=1)
         Sort Key: revenue19.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=577724 read=743589 written=63
         ->  Subquery Scan on revenue19  (cost=1191813.19..1191898.24 rows=3780 width=12) (actual time=73771.146..73792.992 rows=1 loops=1)
               Buffers: shared hit=577724 read=743589 written=63
               ->  HashAggregate  (cost=1191813.19..1191860.44 rows=3780 width=12) (actual time=73771.144..73792.988 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=577724 read=743589 written=63
                     ->  Bitmap Heap Scan on lineitem  (cost=48191.36..1151990.82 rows=2275564 width=12) (actual time=2605.368..35525.183 rows=2246079 loops=1)
                           Recheck Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=289708 read=370949 written=32
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47622.47 rows=2275564 width=0) (actual time=2243.216..2243.216 rows=2253051 loops=1)
                                 Index Cond: ((l_shipdate >= '1996-11-01'::date) AND (l_shipdate < '1997-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6139
 Total runtime: 73883.486 ms
(33 rows)

drop view revenue19;
DROP VIEW
COMMIT;
COMMIT