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=4861624.08..4861624.08 rows=1 width=26) (actual time=369856.161..369856.180 rows=100 loops=1)
   Buffers: shared hit=10293986 read=1476417 dirtied=237 written=11630, temp read=161870 written=161864
   ->  Sort  (cost=4861624.08..4861624.08 rows=1 width=26) (actual time=369856.157..369856.164 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10293986 read=1476417 dirtied=237 written=11630, temp read=161870 written=161864
         ->  HashAggregate  (cost=4861624.06..4861624.07 rows=1 width=26) (actual time=369851.239..369853.106 rows=4079 loops=1)
               Buffers: shared hit=10293978 read=1476417 dirtied=237 written=11630, temp read=161870 written=161864
               ->  Nested Loop Anti Join  (cost=2686276.13..4861624.05 rows=1 width=26) (actual time=99474.692..369617.918 rows=40455 loops=1)
                     Buffers: shared hit=10293978 read=1476417 dirtied=237 written=11630, temp read=161870 written=161864
                     ->  Nested Loop  (cost=2686276.13..4861608.86 rows=1 width=34) (actual time=99471.011..279647.060 rows=721396 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7304328 read=843759 dirtied=237 written=352, temp read=161870 written=161864
                           ->  Hash Semi Join  (cost=2686276.13..4861606.87 rows=1 width=38) (actual time=99470.937..211968.652 rows=1494855 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 388660
                                 Buffers: shared hit=1347262 read=813129 dirtied=237 written=44, temp read=161870 written=161864
                                 ->  Hash Join  (cost=2441.58..1925321.13 rows=810061 width=34) (actual time=111.028..96194.232 rows=1550507 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=676311 read=404818 written=26
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1838822.86 rows=20254956 width=8) (actual time=0.046..68302.216 rows=37966199 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22079098
                                             Buffers: shared hit=674458 read=404804 written=26
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=110.928..110.928 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=3.702..108.377 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=0.693..0.704 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=3.002..106.053 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=2.199..2.199 rows=4079 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1686910.69..1686910.69 rows=60764869 width=8) (actual time=99337.013..99337.013 rows=60045297 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586573kB
                                       Buffers: shared hit=670951 read=408311 dirtied=237 written=18, temp written=153906
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1686910.69 rows=60764869 width=8) (actual time=0.020..72628.675 rows=60045297 loops=1)
                                             Buffers: shared hit=670951 read=408311 dirtied=237 written=18
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.043..0.044 rows=0 loops=1494855)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5957066 read=30630 written=308
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.57 rows=5 width=8) (actual time=0.123..0.123 rows=1 loops=721396)
                           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=2989650 read=632658 written=11278
 Total runtime: 369858.479 ms
(56 rows)

COMMIT;
COMMIT