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 = 'ARGENTINA'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                                 QUERY PLAN                                                                                                 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=1961701.63..1961701.64 rows=1 width=26) (actual time=48900.925..48900.944 rows=100 loops=1)
   Buffers: shared hit=13820253 read=783524 dirtied=601 written=5422
   ->  Sort  (cost=1961701.63..1961701.64 rows=1 width=26) (actual time=48900.922..48900.927 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=13820253 read=783524 dirtied=601 written=5422
         ->  HashAggregate  (cost=1961701.61..1961701.62 rows=1 width=26) (actual time=48897.587..48899.682 rows=4007 loops=1)
               Group Key: supplier.s_name
               Buffers: shared hit=13820245 read=783524 dirtied=601 written=5422
               ->  Nested Loop Anti Join  (cost=2443.74..1961701.61 rows=1 width=26) (actual time=16.292..48800.644 rows=39878 loops=1)
                     Buffers: shared hit=13820245 read=783524 dirtied=601 written=5422
                     ->  Nested Loop Semi Join  (cost=2443.17..1961700.30 rows=1 width=34) (actual time=15.709..46034.008 rows=707784 loops=1)
                           Join Filter: (orders.o_orderkey = l2.l_orderkey)
                           Buffers: shared hit=10274923 read=781462 dirtied=601 written=5405
                           ->  Nested Loop  (cost=2442.61..1438591.74 rows=391494 width=38) (actual time=15.637..40528.259 rows=734308 loops=1)
                                 Buffers: shared hit=6751199 read=628030 dirtied=601 written=4374
                                 ->  Hash Join  (cost=2442.17..1015244.85 rows=804226 width=34) (actual time=15.563..31313.510 rows=1520499 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=709758 read=579261 dirtied=601 written=3970
                                       ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l1  (cost=0.56..929363.32 rows=20106043 width=8) (actual time=0.089..20772.704 rows=37929015 loops=1)
                                             Buffers: shared hit=707909 read=579248 dirtied=601 written=3970
                                       ->  Hash  (cost=2391.61..2391.61 rows=4000 width=30) (actual time=15.423..15.423 rows=4007 loops=1)
                                             Buckets: 4096  Batches: 1  Memory Usage: 283kB
                                             Buffers: shared hit=1846 read=13
                                             ->  Nested Loop  (cost=79.29..2391.61 rows=4000 width=30) (actual time=1.162..14.392 rows=4007 loops=1)
                                                   Buffers: shared hit=1846 read=13
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.007..0.014 rows=1 loops=1)
                                                         Filter: (n_name = 'ARGENTINA'::bpchar)
                                                         Rows Removed by Filter: 24
                                                         Buffers: shared hit=1
                                                   ->  Bitmap Heap Scan on supplier  (cost=79.29..2350.29 rows=4000 width=34) (actual time=1.149..13.491 rows=4007 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Heap Blocks: exact=1845
                                                         Buffers: shared hit=1845 read=13
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.29 rows=4000 width=0) (actual time=0.862..0.862 rows=4007 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=13
                                 ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.43..0.52 rows=1 width=4) (actual time=0.005..0.005 rows=0 loops=1520499)
                                       Index Cond: (o_orderkey = l1.l_orderkey)
                                       Filter: (o_orderstatus = 'F'::bpchar)
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=6041441 read=48769 written=404
                           ->  Index Scan using pk_lineitem on lineitem l2  (cost=0.56..1.15 rows=15 width=8) (actual time=0.007..0.007 rows=1 loops=734308)
                                 Index Cond: (l_orderkey = l1.l_orderkey)
                                 Filter: (l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Filter: 0
                                 Buffers: shared hit=3523724 read=153432 written=1031
                     ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l3  (cost=0.56..0.91 rows=5 width=8) (actual time=0.003..0.003 rows=1 loops=707784)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: (l_suppkey <> l1.l_suppkey)
                           Rows Removed by Filter: 0
                           Buffers: shared hit=3545322 read=2062 written=17
 Planning time: 10.839 ms
 Execution time: 48901.361 ms
(54 rows)

COMMIT;
COMMIT