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 = 'INDIA'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4866410.24..4866410.25 rows=1 width=26) (actual time=160453.046..160453.062 rows=100 loops=1)
   Buffers: shared hit=10083797 read=1688634 dirtied=247 written=54252, temp read=161870 written=161864
   ->  Sort  (cost=4866410.24..4866410.25 rows=1 width=26) (actual time=160453.043..160453.048 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10083797 read=1688634 dirtied=247 written=54252, temp read=161870 written=161864
         ->  HashAggregate  (cost=4866410.22..4866410.23 rows=1 width=26) (actual time=160448.611..160450.360 rows=4079 loops=1)
               Buffers: shared hit=10083789 read=1688634 dirtied=247 written=54252, temp read=161870 written=161864
               ->  Nested Loop Anti Join  (cost=2688918.71..4866410.22 rows=1 width=26) (actual time=57023.597..160301.936 rows=40456 loops=1)
                     Buffers: shared hit=10083789 read=1688634 dirtied=247 written=54252, temp read=161870 written=161864
                     ->  Nested Loop  (cost=2688918.71..4866395.00 rows=1 width=34) (actual time=57021.915..145363.602 rows=721382 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6914895 read=1235298 dirtied=158 written=24203, temp read=161870 written=161864
                           ->  Hash Semi Join  (cost=2688918.71..4866393.01 rows=1 width=38) (actual time=57020.433..128309.903 rows=1494853 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 388642
                                 Buffers: shared hit=1096482 read=1066023 written=4, temp read=161870 written=161864
                                 ->  Hash Join  (cost=2441.58..1927212.87 rows=810999 width=34) (actual time=24.326..54624.555 rows=1550526 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=557598 read=524588 written=4
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1840630.19 rows=20274965 width=8) (actual time=0.029..35134.065 rows=37966096 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078937
                                             Buffers: shared hit=555745 read=524574 written=4
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=24.244..24.244 rows=4079 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 255kB
                                             Buffers: shared hit=1850 read=14
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.767..21.965 rows=4079 loops=1)
                                                   Buffers: shared hit=1850 read=14
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.010..0.018 rows=1 loops=1)
                                                         Filter: (n_name = 'INDIA'::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=1.750..20.521 rows=4079 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1849 read=14
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.367..1.367 rows=4079 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=1 read=13
                                 ->  Hash  (cost=1688567.95..1688567.95 rows=60824895 width=8) (actual time=56979.705..56979.705 rows=60045033 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586575kB
                                       Buffers: shared hit=538884 read=541435, temp written=153905
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1688567.95 rows=60824895 width=8) (actual time=0.060..27057.354 rows=60045033 loops=1)
                                             Buffers: shared hit=538884 read=541435
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.010..0.011 rows=0 loops=1494853)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5818413 read=169275 dirtied=158 written=24199
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.58 rows=5 width=8) (actual time=0.020..0.020 rows=1 loops=721382)
                           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=3168894 read=453336 dirtied=89 written=30049
 Total runtime: 160454.396 ms
(56 rows)

COMMIT;
COMMIT