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=4856817.53..4856817.53 rows=1 width=26) (actual time=159466.126..159466.153 rows=100 loops=1)
   Buffers: shared hit=9778135 read=1777917 dirtied=1070 written=3979, temp read=161687 written=161681
   ->  Sort  (cost=4856817.53..4856817.53 rows=1 width=26) (actual time=159466.120..159466.134 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=9778135 read=1777917 dirtied=1070 written=3979, temp read=161687 written=161681
         ->  HashAggregate  (cost=4856817.51..4856817.52 rows=1 width=26) (actual time=159458.001..159460.914 rows=3995 loops=1)
               Buffers: shared hit=9778127 read=1777917 dirtied=1070 written=3979, temp read=161687 written=161681
               ->  Nested Loop Anti Join  (cost=2683620.04..4856817.50 rows=1 width=26) (actual time=55871.564..159309.530 rows=39562 loops=1)
                     Buffers: shared hit=9778127 read=1777917 dirtied=1070 written=3979, temp read=161687 written=161681
                     ->  Nested Loop  (cost=2683620.04..4856802.34 rows=1 width=34) (actual time=55869.128..140865.977 rows=704970 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6786550 read=1228700 dirtied=1067 written=1271, temp read=161687 written=161681
                           ->  Hash Semi Join  (cost=2683620.04..4856800.35 rows=1 width=38) (actual time=55869.062..123324.939 rows=1462245 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 378194
                                 Buffers: shared hit=940893 read=1217349 dirtied=1066 written=937, temp read=161687 written=161681
                                 ->  Hash Join  (cost=2441.58..1923416.68 rows=809399 width=34) (actual time=58.208..55236.585 rows=1516347 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=313268 read=766786 dirtied=1066 written=937
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1836999.93 rows=20234985 width=8) (actual time=0.040..37393.735 rows=37966174 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078820
                                             Buffers: shared hit=311416 read=766772 dirtied=1066 written=937
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=58.113..58.113 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=1.939..55.860 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=0.009..0.019 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=1.923..54.377 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=1.527..1.527 rows=3995 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1685237.54..1685237.54 rows=60704954 width=8) (actual time=55787.012..55787.012 rows=60044994 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586568kB
                                       Buffers: shared hit=627625 read=450563, temp written=153905
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1685237.54 rows=60704954 width=8) (actual time=0.057..31569.406 rows=60044994 loops=1)
                                             Buffers: shared hit=627625 read=450563
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.011..0.011 rows=0 loops=1462245)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5845657 read=11351 dirtied=1 written=334
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.56 rows=5 width=8) (actual time=0.025..0.025 rows=1 loops=704970)
                           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=2991577 read=549217 dirtied=3 written=2708
 Total runtime: 159467.966 ms
(56 rows)

COMMIT;
COMMIT