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=1966369.18..1966369.19 rows=1 width=26) (actual time=53310.948..53310.969 rows=100 loops=1)
   Buffers: shared hit=13726209 read=745084 dirtied=298 written=5549
   ->  Sort  (cost=1966369.18..1966369.19 rows=1 width=26) (actual time=53310.945..53310.950 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=13726209 read=745084 dirtied=298 written=5549
         ->  HashAggregate  (cost=1966369.16..1966369.17 rows=1 width=26) (actual time=53308.192..53309.607 rows=3960 loops=1)
               Group Key: supplier.s_name
               Buffers: shared hit=13726201 read=745084 dirtied=298 written=5549
               ->  Nested Loop Anti Join  (cost=2443.74..1966369.16 rows=1 width=26) (actual time=24.782..53206.634 rows=39337 loops=1)
                     Buffers: shared hit=13726201 read=745084 dirtied=298 written=5549
                     ->  Nested Loop Semi Join  (cost=2443.17..1966367.85 rows=1 width=34) (actual time=24.296..50166.905 rows=700691 loops=1)
                           Join Filter: (orders.o_orderkey = l2.l_orderkey)
                           Buffers: shared hit=10216507 read=743208 dirtied=298 written=5537
                           ->  Nested Loop  (cost=2442.61..1443343.47 rows=391403 width=38) (actual time=24.262..44480.801 rows=727220 loops=1)
                                 Buffers: shared hit=6714041 read=603510 dirtied=298 written=4418
                                 ->  Hash Join  (cost=2442.17..1018489.55 rows=806988 width=34) (actual time=24.099..34488.953 rows=1504711 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=763449 read=527084 dirtied=298 written=4089
                                       ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l1  (cost=0.56..932322.92 rows=20174706 width=8) (actual time=0.167..22182.345 rows=37965325 loops=1)
                                             Buffers: shared hit=761616 read=527071 dirtied=298 written=4089
                                       ->  Hash  (cost=2391.61..2391.61 rows=4000 width=30) (actual time=23.867..23.867 rows=3961 loops=1)
                                             Buckets: 4096  Batches: 1  Memory Usage: 280kB
                                             Buffers: shared hit=1830 read=13
                                             ->  Nested Loop  (cost=79.29..2391.61 rows=4000 width=30) (actual time=1.639..22.144 rows=3961 loops=1)
                                                   Buffers: shared hit=1830 read=13
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.013..0.022 rows=1 loops=1)
                                                         Filter: (n_name = 'FRANCE'::bpchar)
                                                         Rows Removed by Filter: 24
                                                         Buffers: shared hit=1
                                                   ->  Bitmap Heap Scan on supplier  (cost=79.29..2350.29 rows=4000 width=34) (actual time=1.618..20.571 rows=3961 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Heap Blocks: exact=1829
                                                         Buffers: shared hit=1829 read=13
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.29 rows=4000 width=0) (actual time=1.267..1.267 rows=3961 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=0.006..0.006 rows=0 loops=1504711)
                                       Index Cond: (o_orderkey = l1.l_orderkey)
                                       Filter: (o_orderstatus = 'F'::bpchar)
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=5950592 read=76426 written=329
                           ->  Index Scan using lineitem_l_orderkey_idx on lineitem l2  (cost=0.56..1.15 rows=15 width=8) (actual time=0.007..0.007 rows=1 loops=727220)
                                 Index Cond: (l_orderkey = l1.l_orderkey)
                                 Filter: (l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Filter: 0
                                 Buffers: shared hit=3502466 read=139698 written=1119
                     ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l3  (cost=0.56..0.91 rows=5 width=8) (actual time=0.004..0.004 rows=1 loops=700691)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: (l_suppkey <> l1.l_suppkey)
                           Rows Removed by Filter: 0
                           Buffers: shared hit=3509694 read=1876 written=12
 Planning time: 15.088 ms
 Execution time: 53311.497 ms
(54 rows)

COMMIT;
COMMIT