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=1952672.94..1952672.94 rows=1 width=26) (actual time=53699.076..53699.096 rows=100 loops=1)
   Buffers: shared hit=14069991 read=404327 written=6
   ->  Sort  (cost=1952672.94..1952672.94 rows=1 width=26) (actual time=53699.073..53699.080 rows=100 loops=1)
         Sort Key: (count(*)), supplier.s_name
         Sort Method: top-N heapsort  Memory: 32kB
         Buffers: shared hit=14069991 read=404327 written=6
         ->  HashAggregate  (cost=1952672.92..1952672.93 rows=1 width=26) (actual time=53696.370..53697.879 rows=3974 loops=1)
               Group Key: supplier.s_name
               Buffers: shared hit=14069983 read=404327 written=6
               ->  Nested Loop Anti Join  (cost=2443.74..1952672.91 rows=1 width=26) (actual time=18.926..53582.723 rows=39363 loops=1)
                     Buffers: shared hit=14069983 read=404327 written=6
                     ->  Nested Loop Semi Join  (cost=2443.17..1952671.61 rows=1 width=34) (actual time=17.753..49810.321 rows=702192 loops=1)
                           Join Filter: (orders.o_orderkey = l2.l_orderkey)
                           Buffers: shared hit=10551531 read=403444 written=6
                           ->  Nested Loop  (cost=2442.61..1433336.65 rows=388697 width=38) (actual time=17.730..43921.206 rows=728692 loops=1)
                                 Buffers: shared hit=6972077 read=333349 written=5
                                 ->  Hash Join  (cost=2442.17..1011465.62 rows=801411 width=34) (actual time=17.705..33256.160 rows=1507377 loops=1)
                                       Hash Cond: (l1.l_suppkey = supplier.s_suppkey)
                                       Buffers: shared hit=960029 read=307769 written=5
                                       ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l1  (cost=0.56..925877.67 rows=20035263 width=8) (actual time=0.062..20929.531 rows=37966905 loops=1)
                                             Buffers: shared hit=958184 read=307757 written=5
                                       ->  Hash  (cost=2391.61..2391.61 rows=4000 width=30) (actual time=17.552..17.552 rows=3974 loops=1)
                                             Buckets: 4096  Batches: 1  Memory Usage: 281kB
                                             Buffers: shared hit=1842 read=12
                                             ->  Nested Loop  (cost=79.29..2391.61 rows=4000 width=30) (actual time=1.334..16.415 rows=3974 loops=1)
                                                   Buffers: shared hit=1842 read=12
                                                   ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.009..0.015 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=1.319..15.587 rows=3974 loops=1)
                                                         Recheck Cond: (s_nationkey = nation.n_nationkey)
                                                         Heap Blocks: exact=1840
                                                         Buffers: shared hit=1841 read=12
                                                         ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.29 rows=4000 width=0) (actual time=1.023..1.023 rows=3974 loops=1)
                                                               Index Cond: (s_nationkey = nation.n_nationkey)
                                                               Buffers: shared hit=1 read=12
                                 ->  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=1507377)
                                       Index Cond: (o_orderkey = l1.l_orderkey)
                                       Filter: (o_orderstatus = 'F'::bpchar)
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=6012048 read=25580
                           ->  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=728692)
                                 Index Cond: (l_orderkey = l1.l_orderkey)
                                 Filter: (l_suppkey <> l1.l_suppkey)
                                 Rows Removed by Filter: 0
                                 Buffers: shared hit=3579454 read=70095 written=1
                     ->  Index Scan using lineitem_l_orderkey_idx_part1 on lineitem l3  (cost=0.56..0.91 rows=5 width=8) (actual time=0.005..0.005 rows=1 loops=702192)
                           Index Cond: (l_orderkey = l1.l_orderkey)
                           Filter: (l_suppkey <> l1.l_suppkey)
                           Rows Removed by Filter: 0
                           Buffers: shared hit=3518452 read=883
 Planning time: 10.310 ms
 Execution time: 53699.531 ms
(54 rows)

COMMIT;
COMMIT