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 = 'INDONESIA'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4855190.91..4855190.91 rows=1 width=26) (actual time=218155.158..218155.179 rows=100 loops=1)
   Buffers: shared hit=10321377 read=1175509 dirtied=204 written=953, temp read=161483 written=161477
   ->  Sort  (cost=4855190.91..4855190.91 rows=1 width=26) (actual time=218155.154..218155.161 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10321377 read=1175509 dirtied=204 written=953, temp read=161483 written=161477
         ->  HashAggregate  (cost=4855190.89..4855190.90 rows=1 width=26) (actual time=218150.104..218152.025 rows=3974 loops=1)
               Buffers: shared hit=10321369 read=1175509 dirtied=204 written=953, temp read=161483 written=161477
               ->  Nested Loop Anti Join  (cost=2682725.45..4855190.88 rows=1 width=26) (actual time=77624.963..217976.475 rows=39327 loops=1)
                     Buffers: shared hit=10321369 read=1175509 dirtied=204 written=953, temp read=161483 written=161477
                     ->  Nested Loop  (cost=2682725.45..4855175.73 rows=1 width=34) (actual time=77568.492..186417.016 rows=701397 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7171009 read=802804 dirtied=204 written=243, temp read=161483 written=161477
                           ->  Hash Semi Join  (cost=2682725.45..4855173.74 rows=1 width=38) (actual time=77564.635..151329.393 rows=1452131 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 376435
                                 Buffers: shared hit=1365422 read=792094 dirtied=204 written=225, temp read=161483 written=161477
                                 ->  Hash Join  (cost=2441.58..1922773.28 rows=808862 width=34) (actual time=78.224..57919.352 rows=1505813 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=775284 read=304403 written=20
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1836387.26 rows=20228220 width=8) (actual time=0.035..39262.276 rows=37927978 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22056848
                                             Buffers: shared hit=773438 read=304391 written=18
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=78.136..78.136 rows=3974 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 249kB
                                             Buffers: shared hit=1843 read=12 written=2
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.771..75.625 rows=3974 loops=1)
                                                   Buffers: shared hit=1843 read=12 written=2
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.008..0.016 rows=1 loops=1)
                                                         Filter: (n_name = 'INDONESIA'::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=1.758..74.039 rows=3974 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1842 read=12 written=2
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.358..1.358 rows=3974 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=2 read=12 written=2
                                 ->  Hash  (cost=1684675.61..1684675.61 rows=60684661 width=8) (actual time=77459.337..77459.337 rows=59984826 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 585983kB
                                       Buffers: shared hit=590138 read=487691 dirtied=204 written=205, temp written=153751
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1684675.61 rows=60684661 width=8) (actual time=0.021..50905.657 rows=59984826 loops=1)
                                             Buffers: shared hit=590138 read=487691 dirtied=204 written=205
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.97 rows=1 width=4) (actual time=0.023..0.023 rows=0 loops=1452131)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5805587 read=10710 written=18
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.55 rows=5 width=8) (actual time=0.044..0.044 rows=1 loops=701397)
                           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=3150360 read=372705 written=710
 Total runtime: 218158.142 ms
(56 rows)

COMMIT;
COMMIT