BEGIN;
BEGIN
create or replace view revenue11 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1993-01-01'
		and l_shipdate < date'1993-01-01' + 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,
	revenue11
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue11
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2359025.20..2364122.77 rows=3758 width=79) (actual time=22017.698..22017.703 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue11.supplier_no)
   Buffers: shared hit=642962 read=677058 written=17226
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1170930.80..1170930.81 rows=1 width=8) (actual time=7988.870..7988.870 rows=1 loops=1)
           Buffers: shared hit=403417 read=255857 written=5990
           ->  HashAggregate  (cost=1170846.25..1170883.83 rows=3758 width=12) (actual time=7940.456..7978.556 rows=100000 loops=1)
                 Group Key: lineitem_1.l_suppkey
                 Buffers: shared hit=403417 read=255857 written=5990
                 ->  Bitmap Heap Scan on lineitem lineitem_1  (cost=47904.10..1148259.39 rows=2258686 width=12) (actual time=1192.498..6042.074 rows=2247367 loops=1)
                       Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1993-04-01 00:00:00'::timestamp without time zone))
                       Heap Blocks: exact=653130
                       Buffers: shared hit=403417 read=255857 written=5990
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47339.43 rows=2258686 width=0) (actual time=922.450..922.450 rows=2251470 loops=1)
                             Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1993-04-01 00:00:00'::timestamp without time zone))
                             Buffers: shared hit=517 read=5627 written=287
   ->  Index Scan using pk_supplier on supplier  (cost=0.29..4791.49 rows=100000 width=71) (actual time=0.021..20.732 rows=53897 loops=1)
         Buffers: shared hit=1472
   ->  Sort  (cost=1188094.09..1188103.49 rows=3758 width=12) (actual time=21991.637..21991.640 rows=1 loops=1)
         Sort Key: revenue11.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=641490 read=677058 written=17226
         ->  Subquery Scan on revenue11  (cost=1187786.39..1187870.95 rows=3758 width=12) (actual time=21946.679..21991.602 rows=1 loops=1)
               Buffers: shared hit=641490 read=677058 written=17226
               ->  HashAggregate  (cost=1187786.39..1187833.37 rows=3758 width=12) (actual time=21946.678..21991.599 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=641490 read=677058 written=17226
                     ->  Bitmap Heap Scan on lineitem  (cost=47904.10..1148259.39 rows=2258686 width=12) (actual time=2100.198..10765.325 rows=2247367 loops=1)
                           Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1993-04-01 00:00:00'::timestamp without time zone))
                           Heap Blocks: exact=653130
                           Buffers: shared hit=238073 read=421201 written=11236
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..47339.43 rows=2258686 width=0) (actual time=1719.913..1719.913 rows=2249543 loops=1)
                                 Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1993-04-01 00:00:00'::timestamp without time zone))
                                 Buffers: shared hit=2 read=6142
 Planning time: 2.221 ms
 Execution time: 22026.473 ms
(38 rows)

drop view revenue11;
DROP VIEW
COMMIT;
COMMIT