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 = 'JAPAN'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4856816.07..4856816.08 rows=1 width=26) (actual time=143915.232..143915.259 rows=100 loops=1)
   Buffers: shared hit=9791407 read=1809795 dirtied=1283 written=19103, temp read=161724 written=161718
   ->  Sort  (cost=4856816.07..4856816.08 rows=1 width=26) (actual time=143915.227..143915.236 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=9791407 read=1809795 dirtied=1283 written=19103, temp read=161724 written=161718
         ->  HashAggregate  (cost=4856816.05..4856816.06 rows=1 width=26) (actual time=143907.647..143910.215 rows=4009 loops=1)
               Buffers: shared hit=9791399 read=1809795 dirtied=1283 written=19103, temp read=161724 written=161718
               ->  Nested Loop Anti Join  (cost=2683619.14..4856816.05 rows=1 width=26) (actual time=49279.530..143751.386 rows=40101 loops=1)
                     Buffers: shared hit=9791399 read=1809795 dirtied=1283 written=19103, temp read=161724 written=161718
                     ->  Nested Loop  (cost=2683619.14..4856800.88 rows=1 width=34) (actual time=49259.163..125034.526 rows=709150 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6843889 read=1196366 dirtied=1174 written=4705, temp read=161724 written=161718
                           ->  Hash Semi Join  (cost=2683619.14..4856798.89 rows=1 width=38) (actual time=49256.131..106502.199 rows=1468513 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 381319
                                 Buffers: shared hit=1075772 read=1082459 dirtied=1069 written=98, temp read=161724 written=161718
                                 ->  Hash Join  (cost=2441.58..1923416.13 rows=809399 width=34) (actual time=30.475..44624.877 rows=1523150 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=371061 read=708982 written=98
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1836999.43 rows=20234971 width=8) (actual time=0.023..29640.691 rows=37966174 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078820
                                             Buffers: shared hit=369220 read=708968 written=98
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=30.402..30.402 rows=4009 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 251kB
                                             Buffers: shared hit=1838 read=14
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.387..28.205 rows=4009 loops=1)
                                                   Buffers: shared hit=1838 read=14
                                                   ->  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 = 'JAPAN'::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=1.374..26.773 rows=4009 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1837 read=14
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.067..1.067 rows=4009 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1685237.14..1685237.14 rows=60704914 width=8) (actual time=49198.381..49198.381 rows=60044994 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586568kB
                                       Buffers: shared hit=704711 read=373477 dirtied=1069, temp written=153905
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1685237.14 rows=60704914 width=8) (actual time=0.059..26741.974 rows=60044994 loops=1)
                                             Buffers: shared hit=704711 read=373477 dirtied=1069
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.011..0.012 rows=0 loops=1468513)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5768117 read=113907 dirtied=105 written=4607
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.56 rows=5 width=8) (actual time=0.025..0.025 rows=1 loops=709150)
                           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=2947510 read=613429 dirtied=109 written=14398
 Total runtime: 143917.302 ms
(56 rows)

COMMIT;
COMMIT