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=1953487.79..1953487.79 rows=1 width=26) (actual time=41939.522..41939.540 rows=100 loops=1)
   Buffers: shared hit=13220106 read=1253153
   ->  Sort  (cost=1953487.79..1953487.79 rows=1 width=26) (actual time=41939.519..41939.525 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=13220106 read=1253153
         ->  HashAggregate  (cost=1953487.77..1953487.78 rows=1 width=26) (actual time=41937.468..41938.451 rows=3974 loops=1)
               Group Key: supplier.s_name
               Buffers: shared hit=13220098 read=1253153
               ->  Nested Loop Anti Join  (cost=2443.74..1953487.76 rows=1 width=26) (actual time=23.673..41889.017 rows=39354 loops=1)
                     Buffers: shared hit=13220098 read=1253153
                     ->  Nested Loop Semi Join  (cost=2443.17..1953486.46 rows=1 width=34) (actual time=22.427..39476.098 rows=702194 loops=1)
                           Join Filter: (orders.o_orderkey = l2.l_orderkey)
                           Buffers: shared hit=9703613 read=1250295
                           ->  Nested Loop  (cost=2442.61..1432449.20 rows=389979 width=38) (actual time=22.412..34724.272 rows=728687 loops=1)
                                 Buffers: shared hit=6218830 read=1085552
                                 ->  Hash Join  (cost=2442.17..1011006.90 rows=800609 width=34) (actual time=22.392..26228.530 rows=1507428 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=376260 read=890283
                                       ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l1  (cost=0.56..925502.09 rows=20015230 width=8) (actual time=0.117..20006.455 rows=37967116 loops=1)
                                             Buffers: shared hit=374416 read=890270
                                       ->  Hash  (cost=2391.61..2391.61 rows=4000 width=30) (actual time=22.177..22.177 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=1.279..20.986 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=0.008..0.014 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=1.263..20.082 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=0.942..0.942 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=0.005..0.005 rows=0 loops=1507428)
                                       Index Cond: (o_orderkey = l1.l_orderkey)
                                       Filter: (o_orderstatus = 'F'::bpchar)
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=5842570 read=195269
                           ->  Index Scan using lineitem_l_orderkey_idx on lineitem l2  (cost=0.56..1.15 rows=15 width=8) (actual time=0.006..0.006 rows=1 loops=728687)
                                 Index Cond: (l_orderkey = l1.l_orderkey)
                                 Filter: (l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Filter: 0
                                 Buffers: shared hit=3484783 read=164743
                     ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l3  (cost=0.56..0.91 rows=5 width=8) (actual time=0.003..0.003 rows=1 loops=702194)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: (l_suppkey <> l1.l_suppkey)
                           Rows Removed by Filter: 0
                           Buffers: shared hit=3516485 read=2858
 Planning time: 16.442 ms
 Execution time: 41939.935 ms
(54 rows)

COMMIT;
COMMIT