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 = 'UNITED STATES'
group by
	s_name
order by
	numwait desc,
	s_name
LIMIT 100;
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Limit  (cost=4866383.69..4866383.69 rows=1 width=26) (actual time=388576.146..388576.175 rows=100 loops=1)
   Buffers: shared hit=9856142 read=1738088 written=10027, temp read=161712 written=161706
   ->  Sort  (cost=4866383.69..4866383.69 rows=1 width=26) (actual time=388576.142..388576.150 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=9856142 read=1738088 written=10027, temp read=161712 written=161706
         ->  HashAggregate  (cost=4866383.67..4866383.68 rows=1 width=26) (actual time=388568.265..388571.044 rows=4004 loops=1)
               Buffers: shared hit=9856134 read=1738088 written=10027, temp read=161712 written=161706
               ->  Nested Loop Anti Join  (cost=2688905.13..4866383.66 rows=1 width=26) (actual time=98009.093..388313.856 rows=40131 loops=1)
                     Buffers: shared hit=9856134 read=1738088 written=10027, temp read=161712 written=161706
                     ->  Nested Loop  (cost=2688905.13..4866368.45 rows=1 width=34) (actual time=98007.814..288066.239 rows=708280 loops=1)
                           Join Filter: (l1.l_orderkey = orders.o_orderkey)
                           Buffers: shared hit=6953151 read=1084703 written=3869, temp read=161712 written=161706
                           ->  Hash Semi Join  (cost=2688905.13..4866366.45 rows=1 width=38) (actual time=98007.753..211741.487 rows=1466849 loops=1)
                                 Hash Cond: (l1.l_orderkey = l2.l_orderkey)
                                 Join Filter: (l2.l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Join Filter: 380745
                                 Buffers: shared hit=1178949 read=983565 written=2184, temp read=161712 written=161706
                                 ->  Hash Join  (cost=2441.58..1927204.34 rows=810854 width=34) (actual time=66.777..98529.449 rows=1521034 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=725601 read=356594
                                       ->  Seq Scan on lineitem l1  (cost=0.00..1840623.75 rows=20274793 width=8) (actual time=0.050..70110.211 rows=37966096 loops=1)
                                             Filter: (l_receiptdate > l_commitdate)
                                             Rows Removed by Filter: 22078937
                                             Buffers: shared hit=723739 read=356580
                                       ->  Hash  (cost=2391.58..2391.58 rows=4000 width=30) (actual time=66.442..66.442 rows=4004 loops=1)
                                             Buckets: 1024  Batches: 1  Memory Usage: 251kB
                                             Buffers: shared hit=1859 read=14
                                             ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=30) (actual time=2.383..63.890 rows=4004 loops=1)
                                                   Buffers: shared hit=1859 read=14
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.013..0.014 rows=1 loops=1)
                                                         Filter: (n_name = 'UNITED STATES'::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=2.362..62.419 rows=4004 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Buffers: shared hit=1858 read=14
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.994..1.994 rows=4004 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared read=14
                                 ->  Hash  (cost=1688562.80..1688562.80 rows=60824380 width=8) (actual time=97420.777..97420.777 rows=60045033 loops=1)
                                       Buckets: 4194304  Batches: 4  Memory Usage: 586575kB
                                       Buffers: shared hit=453348 read=626971 written=2184, temp written=153905
                                       ->  Seq Scan on lineitem l2  (cost=0.00..1688562.80 rows=60824380 width=8) (actual time=0.020..69304.473 rows=60045033 loops=1)
                                             Buffers: shared hit=453348 read=626971 written=2184
                           ->  Index Scan using pk_orders on orders  (cost=0.00..1.98 rows=1 width=4) (actual time=0.050..0.051 rows=0 loops=1466849)
                                 Index Cond: (o_orderkey = l2.l_orderkey)
                                 Filter: (o_orderstatus = 'F'::bpchar)
                                 Rows Removed by Filter: 1
                                 Buffers: shared hit=5774202 read=101138 written=1685
                     ->  Index Scan using pk_lineitem on lineitem l3  (cost=0.00..7.58 rows=5 width=8) (actual time=0.140..0.140 rows=1 loops=708280)
                           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=2902983 read=653385 written=6158
 Total runtime: 388578.006 ms
(56 rows)

COMMIT;
COMMIT