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 = 'BRAZIL'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4818472.59..4818472.59 rows=1 width=26) (actual time=152359.156..152359.184 rows=100 loops=1)
   Buffers: shared hit=10047882 read=1490260 written=1152, temp read=161683 written=161677
   ->  Sort  (cost=4818472.59..4818472.59 rows=1 width=26) (actual time=152359.153..152359.165 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10047882 read=1490260 written=1152, temp read=161683 written=161677
         ->  HashAggregate  (cost=4818472.57..4818472.58 rows=1 width=26) (actual time=152351.678..152353.944 rows=3995 loops=1)
               Buffers: shared hit=10047874 read=1490260 written=1152, temp read=161683 written=161677
               ->  Nested Loop Anti Join  (cost=2662442.40..4818472.56 rows=1 width=26) (actual time=53170.360..152196.832 rows=39578 loops=1)
                     Buffers: shared hit=10047874 read=1490260 written=1152, temp read=161683 written=161677
                     ->  Nested Loop  (cost=2662442.40..4818457.59 rows=1 width=34) (actual time=53163.422..134113.290 rows=704978 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7132664 read=865746 written=170, temp read=161683 written=161677
                           ->  Hash Semi Join  (cost=2662442.40..4818455.63 rows=1 width=38) (actual time=53163.150..115857.793 rows=1462283 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 378197
                                 Buffers: shared hit=1378186 read=763012 written=91, temp read=161683 written=161677
                                 ->  Hash Join  (cost=2441.58..1908240.78 rows=803009 width=34) (actual time=49.085..47749.979 rows=1516407 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=775828 read=295704 written=91
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1822487.01 rows=20075227 width=8) (actual time=0.026..31425.523 rows=37966584 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078719
                                             Buffers: shared hit=773976 read=295690 written=91
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=48.860..48.860 rows=3995 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 250kB
                                             Buffers: shared hit=1849 read=14
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.292..46.443 rows=3995 loops=1)
                                                   Buffers: shared hit=1849 read=14
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.007..0.019 rows=1 loops=1)
                                                         Filter: (n_name = 'BRAZIL'::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=1.281..44.911 rows=3995 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1848 read=14
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=0.970..0.970 rows=3995 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1671922.81..1671922.81 rows=60225681 width=8) (actual time=53091.068..53091.068 rows=60045303 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586635kB
                                       Buffers: shared hit=602358 read=467308, temp written=153901
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1671922.81 rows=60225681 width=8) (actual time=0.026..28088.482 rows=60045303 loops=1)
                                             Buffers: shared hit=602358 read=467308
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.95 rows=1 width=4) (actual time=0.011..0.011 rows=0 loops=1462283)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5754478 read=102734 written=79
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.46 rows=5 width=8) (actual time=0.025..0.025 rows=1 loops=704978)
                           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=2915210 read=624514 written=982
 Total runtime: 152362.456 ms
(56 rows)

COMMIT;
COMMIT