BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	s_name,
	count(*) as numwait
from
	supplier,
	lineitem l1,
	orders,
	nation
where
	s_suppkey = l1.l_suppkey
	and o_orderkey = l1.l_orderkey
	and o_orderstatus = 'F'
	and l1.l_receiptdate > l1.l_commitdate
	and exists (
		select
			*
		from
			lineitem l2
		where
			l2.l_orderkey = l1.l_orderkey
			and l2.l_suppkey <> l1.l_suppkey
	)
	and not exists (
		select
			*
		from
			lineitem l3
		where
			l3.l_orderkey = l1.l_orderkey
			and l3.l_suppkey <> l1.l_suppkey
			and l3.l_receiptdate > l3.l_commitdate
	)
	and s_nationkey = n_nationkey
	and n_name = 'BRAZIL'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4861606.24..4861606.25 rows=1 width=26) (actual time=125108.651..125108.669 rows=100 loops=1)
   Buffers: shared hit=9707726 read=1850706 written=2896, temp read=161688 written=161682
   ->  Sort  (cost=4861606.24..4861606.25 rows=1 width=26) (actual time=125108.648..125108.655 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=9707726 read=1850706 written=2896, temp read=161688 written=161682
         ->  HashAggregate  (cost=4861606.22..4861606.23 rows=1 width=26) (actual time=125103.739..125105.689 rows=3995 loops=1)
               Buffers: shared hit=9707718 read=1850706 written=2896, temp read=161688 written=161682
               ->  Nested Loop Anti Join  (cost=2686280.86..4861606.22 rows=1 width=26) (actual time=41975.765..124970.475 rows=39575 loops=1)
                     Buffers: shared hit=9707718 read=1850706 written=2896, temp read=161688 written=161682
                     ->  Nested Loop  (cost=2686280.86..4861591.03 rows=1 width=34) (actual time=41969.954..110751.089 rows=704997 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6715918 read=1301586 written=514, temp read=161688 written=161682
                           ->  Hash Semi Join  (cost=2686280.86..4861589.03 rows=1 width=38) (actual time=41969.127..93448.863 rows=1462274 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 378189
                                 Buffers: shared hit=1247310 read=913080 written=117, temp read=161688 written=161682
                                 ->  Hash Join  (cost=2441.58..1925314.30 rows=809149 width=34) (actual time=40.989..39692.845 rows=1516373 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=442253 read=638875 written=98
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1838824.94 rows=20255012 width=8) (actual time=0.053..26394.396 rows=37966199 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22079098
                                             Buffers: shared hit=440401 read=638861 written=98
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=40.886..40.886 rows=3995 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 250kB
                                             Buffers: shared hit=1849 read=14
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=2.059..38.335 rows=3995 loops=1)
                                                   Buffers: shared hit=1849 read=14
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.032..0.043 rows=1 loops=1)
                                                         Filter: (n_name = 'BRAZIL'::bpchar)
                                                         Rows Removed by Filter: 24
                                                         Buffers: shared hit=1
                                                   ->  Bitmap Heap Scan on supplier  (cost=79.26..2350.26 rows=4000 width=34) (actual time=2.020..36.643 rows=3995 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1848 read=14
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.611..1.611 rows=3995 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1686912.35..1686912.35 rows=60765035 width=8) (actual time=41894.358..41894.358 rows=60045297 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586573kB
                                       Buffers: shared hit=805057 read=274205 written=19, temp written=153906
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1686912.35 rows=60765035 width=8) (actual time=0.059..21812.711 rows=60045297 loops=1)
                                             Buffers: shared hit=805057 read=274205 written=19
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.011..0.011 rows=0 loops=1462274)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5468608 read=388506 written=397
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.57 rows=5 width=8) (actual time=0.019..0.019 rows=1 loops=704997)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: ((l_receiptdate > l_commitdate) AND (l_suppkey <> l1.l_suppkey))
                           Rows Removed by Filter: 1
                           Buffers: shared hit=2991800 read=549120 written=2382
 Total runtime: 125110.065 ms
(56 rows)

COMMIT;
COMMIT