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=4818421.15..4818421.15 rows=1 width=26) (actual time=360133.225..360133.257 rows=100 loops=1)
   Buffers: shared hit=9678454 read=1859702 written=1867, temp read=161683 written=161677
   ->  Sort  (cost=4818421.15..4818421.15 rows=1 width=26) (actual time=360133.221..360133.238 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=9678454 read=1859702 written=1867, temp read=161683 written=161677
         ->  HashAggregate  (cost=4818421.13..4818421.14 rows=1 width=26) (actual time=360125.967..360128.510 rows=3995 loops=1)
               Buffers: shared hit=9678446 read=1859702 written=1867, temp read=161683 written=161677
               ->  Nested Loop Anti Join  (cost=2662413.90..4818421.12 rows=1 width=26) (actual time=104205.824..359903.027 rows=39578 loops=1)
                     Buffers: shared hit=9678446 read=1859702 written=1867, temp read=161683 written=161677
                     ->  Nested Loop  (cost=2662413.90..4818406.15 rows=1 width=34) (actual time=104197.477..279890.020 rows=704978 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6739910 read=1258508 written=488, temp read=161683 written=161677
                           ->  Hash Semi Join  (cost=2662413.90..4818404.19 rows=1 width=38) (actual time=104196.314..216009.731 rows=1462283 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 378197
                                 Buffers: shared hit=939193 read=1202005 written=31, temp read=161683 written=161677
                                 ->  Hash Join  (cost=2441.58..1908224.30 rows=802858 width=34) (actual time=76.155..94287.581 rows=1516407 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=676836 read=394696 written=30
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1822473.40 rows=20074864 width=8) (actual time=0.033..66948.520 rows=37966584 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078719
                                             Buffers: shared hit=674984 read=394682 written=30
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=75.973..75.973 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=2.086..73.431 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=0.006..0.016 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=2.071..71.878 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=1.680..1.680 rows=3995 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1671911.92..1671911.92 rows=60224592 width=8) (actual time=104096.038..104096.038 rows=60045303 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586635kB
                                       Buffers: shared hit=262357 read=807309 written=1, temp written=153901
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1671911.92 rows=60224592 width=8) (actual time=0.021..76192.659 rows=60045303 loops=1)
                                             Buffers: shared hit=262357 read=807309 written=1
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.95 rows=1 width=4) (actual time=0.042..0.042 rows=0 loops=1462283)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5800717 read=56503 written=457
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.46 rows=5 width=8) (actual time=0.112..0.112 rows=1 loops=704978)
                           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=2938536 read=601194 written=1379
 Total runtime: 360139.224 ms
(56 rows)

COMMIT;
COMMIT