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 = 'FRANCE'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4804074.34..4804074.35 rows=1 width=26) (actual time=80132.492..80132.508 rows=100 loops=1)
   Buffers: shared hit=10099134 read=1365524, temp read=161624 written=161618
   ->  Sort  (cost=4804074.34..4804074.35 rows=1 width=26) (actual time=80132.482..80132.485 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=10099134 read=1365524, temp read=161624 written=161618
         ->  HashAggregate  (cost=4804074.32..4804074.33 rows=1 width=26) (actual time=80127.724..80129.783 rows=3960 loops=1)
               Buffers: shared hit=10099126 read=1365524, temp read=161624 written=161618
               ->  Nested Loop Anti Join  (cost=2654504.08..4804074.32 rows=1 width=26) (actual time=29724.258..80055.573 rows=39274 loops=1)
                     Buffers: shared hit=10099126 read=1365524, temp read=161624 written=161618
                     ->  Nested Loop  (cost=2654504.08..4804059.42 rows=1 width=34) (actual time=29708.113..72775.273 rows=700562 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6991358 read=954493, temp read=161624 written=161618
                           ->  Hash Semi Join  (cost=2654504.08..4804057.46 rows=1 width=38) (actual time=29708.025..65635.673 rows=1450782 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 376708
                                 Buffers: shared hit=1281845 read=852952, temp read=161624 written=161618
                                 ->  Hash Join  (cost=2441.58..1902544.79 rows=799724 width=34) (actual time=18.869..25368.230 rows=1504530 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=568489 read=499833
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1817048.61 rows=20015296 width=8) (actual time=0.016..18377.191 rows=37967116 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078553
                                             Buffers: shared hit=566657 read=499818
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=18.833..18.833 rows=3961 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 248kB
                                             Buffers: shared hit=1829 read=15
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=1.199..17.477 rows=3961 loops=1)
                                                   Buffers: shared hit=1829 read=15
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.007..0.012 rows=1 loops=1)
                                                         Filter: (n_name = 'FRANCE'::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=1.187..16.571 rows=3961 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1828 read=15
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=0.852..0.852 rows=3961 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1666933.89..1666933.89 rows=60045889 width=8) (actual time=29658.333..29658.333 rows=60045669 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586630kB
                                       Buffers: shared hit=713356 read=353119, temp written=153903
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1666933.89 rows=60045889 width=8) (actual time=0.011..16438.874 rows=60045669 loops=1)
                                             Buffers: shared hit=713356 read=353119
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.94 rows=1 width=4) (actual time=0.004..0.004 rows=0 loops=1450782)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5709513 read=101541
                     ->  Index Scan using lineitem_l_orderkey_idx on lineitem l3  (cost=0.00..7.42 rows=5 width=8) (actual time=0.010..0.010 rows=1 loops=700562)
                           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=3107768 read=411031
 Total runtime: 80133.402 ms
(56 rows)

COMMIT;
COMMIT