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=4804035.49..4804035.49 rows=1 width=26) (actual time=131865.464..131865.492 rows=100 loops=1)
   Buffers: shared hit=10386867 read=1182869 dirtied=77 written=18592, temp read=161559 written=161553
   ->  Sort  (cost=4804035.49..4804035.49 rows=1 width=26) (actual time=131865.461..131865.468 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10386867 read=1182869 dirtied=77 written=18592, temp read=161559 written=161553
         ->  HashAggregate  (cost=4804035.47..4804035.48 rows=1 width=26) (actual time=131858.178..131860.707 rows=4009 loops=1)
               Buffers: shared hit=10386859 read=1182869 dirtied=77 written=18592, temp read=161559 written=161553
               ->  Nested Loop Anti Join  (cost=2654483.24..4804035.46 rows=1 width=26) (actual time=45916.148..131712.327 rows=40061 loops=1)
                     Buffers: shared hit=10386859 read=1182869 dirtied=77 written=18592, temp read=161559 written=161553
                     ->  Nested Loop  (cost=2654483.24..4804020.57 rows=1 width=34) (actual time=45906.877..115420.925 rows=708419 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7259755 read=751509 dirtied=77 written=97, temp read=161559 written=161553
                           ->  Hash Semi Join  (cost=2654483.24..4804018.61 rows=1 width=38) (actual time=45906.690..98694.490 rows=1467108 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 380957
                                 Buffers: shared hit=1534063 read=600742 dirtied=64 written=42, temp read=161559 written=161553
                                 ->  Hash Join  (cost=2441.58..1902532.27 rows=799562 width=34) (actual time=25.576..35698.040 rows=1521737 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=636876 read=431454
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1817038.70 rows=20015032 width=8) (actual time=0.014..24214.188 rows=37928797 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22056532
                                             Buffers: shared hit=635073 read=431402
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=25.515..25.515 rows=4009 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 251kB
                                             Buffers: shared hit=1800 read=52
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=4.609..23.413 rows=4009 loops=1)
                                                   Buffers: shared hit=1800 read=52
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.008..0.020 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=4.594..21.913 rows=4009 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1799 read=52
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=4.192..4.192 rows=4009 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=2 read=12
                                 ->  Hash  (cost=1666925.96..1666925.96 rows=60045096 width=8) (actual time=45864.059..45864.059 rows=59985329 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586039kB
                                       Buffers: shared hit=897187 read=169288 dirtied=64 written=42, temp written=153747
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1666925.96 rows=60045096 width=8) (actual time=0.030..23128.682 rows=59985329 loops=1)
                                             Buffers: shared hit=897187 read=169288 dirtied=64 written=42
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.94 rows=1 width=4) (actual time=0.010..0.010 rows=0 loops=1467108)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5725692 read=150767 dirtied=13 written=55
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.42 rows=5 width=8) (actual time=0.022..0.022 rows=1 loops=708419)
                           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=3127104 read=431360 written=18495
 Total runtime: 131869.443 ms
(56 rows)

COMMIT;
COMMIT