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 = 'UNITED STATES'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4866363.84..4866363.84 rows=1 width=26) (actual time=130580.015..130580.037 rows=100 loops=1)
   Buffers: shared hit=10064315 read=1531075 dirtied=114 written=9, temp read=161712 written=161706
   ->  Sort  (cost=4866363.84..4866363.84 rows=1 width=26) (actual time=130580.012..130580.020 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10064315 read=1531075 dirtied=114 written=9, temp read=161712 written=161706
         ->  HashAggregate  (cost=4866363.82..4866363.83 rows=1 width=26) (actual time=130575.764..130577.446 rows=4004 loops=1)
               Buffers: shared hit=10064307 read=1531075 dirtied=114 written=9, temp read=161712 written=161706
               ->  Nested Loop Anti Join  (cost=2688908.86..4866363.81 rows=1 width=26) (actual time=50510.130..130461.439 rows=40131 loops=1)
                     Buffers: shared hit=10064307 read=1531075 dirtied=114 written=9, temp read=161712 written=161706
                     ->  Nested Loop  (cost=2688908.86..4866348.60 rows=1 width=34) (actual time=50507.397..119229.426 rows=708280 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7066430 read=971415 dirtied=114, temp read=161712 written=161706
                           ->  Hash Semi Join  (cost=2688908.86..4866346.60 rows=1 width=38) (actual time=50506.869..108178.578 rows=1466849 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 380745
                                 Buffers: shared hit=1284739 read=877775, temp read=161712 written=161706
                                 ->  Hash Join  (cost=2441.58..1927197.49 rows=809941 width=34) (actual time=28.729..45917.677 rows=1521034 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=487028 read=595167
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1840625.83 rows=20274849 width=8) (actual time=0.038..30129.330 rows=37966096 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078937
                                             Buffers: shared hit=485152 read=595167
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=28.570..28.570 rows=4004 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 251kB
                                             Buffers: shared hit=1873
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.130..27.255 rows=4004 loops=1)
                                                   Buffers: shared hit=1873
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.009..0.010 rows=1 loops=1)
                                                         Filter: (n_name = 'UNITED STATES'::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=1.116..26.274 rows=4004 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1872
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=0.815..0.815 rows=4004 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=14
                                 ->  Hash  (cost=1688564.46..1688564.46 rows=60824546 width=8) (actual time=50450.256..50450.256 rows=60045033 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586575kB
                                       Buffers: shared hit=797711 read=282608, temp written=153905
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1688564.46 rows=60824546 width=8) (actual time=0.014..24874.881 rows=60045033 loops=1)
                                             Buffers: shared hit=797711 read=282608
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.007..0.007 rows=0 loops=1466849)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5781691 read=93640 dirtied=114
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.58 rows=5 width=8) (actual time=0.015..0.015 rows=1 loops=708280)
                           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=2997877 read=559660 written=9
 Total runtime: 130581.124 ms
(56 rows)

COMMIT;
COMMIT