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 = 'INDONESIA'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                                 QUERY PLAN                                                                                                 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=1971711.42..1971711.42 rows=1 width=26) (actual time=48398.176..48398.194 rows=100 loops=1)
   Buffers: shared hit=13669477 read=816283 dirtied=1369 written=3250
   ->  Sort  (cost=1971711.42..1971711.42 rows=1 width=26) (actual time=48398.172..48398.179 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=13669477 read=816283 dirtied=1369 written=3250
         ->  HashAggregate  (cost=1971711.40..1971711.41 rows=1 width=26) (actual time=48394.766..48396.866 rows=3974 loops=1)
               Group Key: supplier.s_name
               Buffers: shared hit=13669469 read=816283 dirtied=1369 written=3250
               ->  Nested Loop Anti Join  (cost=2443.74..1971711.39 rows=1 width=26) (actual time=18.761..48320.993 rows=39327 loops=1)
                     Buffers: shared hit=13669469 read=816283 dirtied=1369 written=3250
                     ->  Nested Loop Semi Join  (cost=2443.17..1971710.08 rows=1 width=34) (actual time=17.471..45199.200 rows=701397 loops=1)
                           Join Filter: (orders.o_orderkey = l2.l_orderkey)
                           Buffers: shared hit=10156177 read=814237 dirtied=1369 written=3240
                           ->  Nested Loop  (cost=2442.61..1447235.92 rows=392466 width=38) (actual time=17.440..39495.513 rows=727849 loops=1)
                                 Buffers: shared hit=6676652 read=648444 dirtied=1369 written=2302
                                 ->  Hash Join  (cost=2442.17..1021249.41 rows=809181 width=34) (actual time=17.415..29933.216 rows=1505813 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=719803 read=573994 dirtied=1369 written=2133
                                       ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l1  (cost=0.56..934855.27 rows=20229526 width=8) (actual time=0.094..20540.104 rows=37927978 loops=1)
                                             Buffers: shared hit=717959 read=573981 dirtied=1369 written=2133
                                       ->  Hash  (cost=2391.61..2391.61 rows=4000 width=30) (actual time=17.199..17.199 rows=3974 loops=1)
                                             Buckets: 4096  Batches: 1  Memory Usage: 281kB
                                             Buffers: shared hit=1841 read=13
                                             ->  Nested Loop  (cost=79.29..2391.61 rows=4000 width=30) (actual time=1.296..15.967 rows=3974 loops=1)
                                                   Buffers: shared hit=1841 read=13
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.010..0.019 rows=1 loops=1)
                                                         Filter: (n_name = 'INDONESIA'::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=1.279..15.159 rows=3974 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Heap Blocks: exact=1840
                                                         Buffers: shared hit=1840 read=13
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.29 rows=4000 width=0) (actual time=0.978..0.978 rows=3974 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=1505813)
                                       Index Cond: (o_orderkey = l1.l_orderkey)
                                       Filter: (o_orderstatus = 'F'::bpchar)
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=5956849 read=74450 written=169
                           ->  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=727849)
                                 Index Cond: (l_orderkey = l1.l_orderkey)
                                 Filter: (l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Filter: 0
                                 Buffers: shared hit=3479525 read=165793 written=938
                     ->  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=701397)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: (l_suppkey <> l1.l_suppkey)
                           Rows Removed by Filter: 0
                           Buffers: shared hit=3513292 read=2046 written=10
 Planning time: 11.240 ms
 Execution time: 48398.615 ms
(54 rows)

COMMIT;
COMMIT