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=4804070.64..4804070.64 rows=1 width=26) (actual time=197742.841..197742.871 rows=100 loops=1)
   Buffers: shared hit=10401223 read=1122015 dirtied=68 written=15719, temp read=161520 written=161514
   ->  Sort  (cost=4804070.64..4804070.64 rows=1 width=26) (actual time=197742.837..197742.848 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10401223 read=1122015 dirtied=68 written=15719, temp read=161520 written=161514
         ->  HashAggregate  (cost=4804070.62..4804070.63 rows=1 width=26) (actual time=197735.044..197737.741 rows=3995 loops=1)
               Buffers: shared hit=10401215 read=1122015 dirtied=68 written=15719, temp read=161520 written=161514
               ->  Nested Loop Anti Join  (cost=2654491.08..4804070.61 rows=1 width=26) (actual time=57369.965..197559.518 rows=39548 loops=1)
                     Buffers: shared hit=10401215 read=1122015 dirtied=68 written=15719, temp read=161520 written=161514
                     ->  Nested Loop  (cost=2654491.08..4804055.71 rows=1 width=34) (actual time=57369.915..162259.085 rows=704248 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=7320281 read=665735 dirtied=68 written=3644, temp read=161520 written=161514
                           ->  Hash Semi Join  (cost=2654491.08..4804053.76 rows=1 width=38) (actual time=57368.841..127375.372 rows=1460780 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 377745
                                 Buffers: shared hit=1563115 read=571701 dirtied=68 written=3, temp read=161520 written=161514
                                 ->  Hash Join  (cost=2441.58..1902544.23 rows=800341 width=34) (actual time=124.594..50182.762 rows=1514828 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=634780 read=433561
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1817042.50 rows=20015133 width=8) (actual time=0.041..34874.335 rows=37928797 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22056532
                                             Buffers: shared hit=633634 read=432841
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=124.491..124.491 rows=3995 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 250kB
                                             Buffers: shared hit=1143 read=720
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.326..121.676 rows=3995 loops=1)
                                                   Buffers: shared hit=1143 read=720
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.007..0.031 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=1.313..120.047 rows=3995 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1142 read=720
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.005..1.005 rows=3995 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=2 read=12
                                 ->  Hash  (cost=1666929.00..1666929.00 rows=60045400 width=8) (actual time=57191.490..57191.490 rows=59985329 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586039kB
                                       Buffers: shared hit=928335 read=138140 dirtied=68 written=3, temp written=153747
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1666929.00 rows=60045400 width=8) (actual time=0.024..30138.717 rows=59985329 loops=1)
                                             Buffers: shared hit=928335 read=138140 dirtied=68 written=3
                           ->  Index Scan using orders_o_orderkey_o_orderdate_idx on orders  (cost=0.00..1.94 rows=1 width=4) (actual time=0.022..0.023 rows=0 loops=1460780)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5757166 read=94034 written=3641
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.42 rows=5 width=8) (actual time=0.049..0.049 rows=1 loops=704248)
                           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=3080934 read=456280 written=12075
 Total runtime: 197744.449 ms
(56 rows)

COMMIT;
COMMIT