BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	ps_partkey,
	sum(ps_supplycost * ps_availqty) as value
from
	partsupp,
	supplier,
	nation
where
	ps_suppkey = s_suppkey
	and s_nationkey = n_nationkey
	and n_name = 'UNITED STATES'
group by
	ps_partkey having
		sum(ps_supplycost * ps_availqty) > (
			select
				sum(ps_supplycost * ps_availqty) * 0.0000100000
			from
				partsupp,
				supplier,
				nation
			where
				ps_suppkey = s_suppkey
				and s_nationkey = n_nationkey
				and n_name = 'UNITED STATES'
		)
order by
	value desc;
                                                                                 QUERY PLAN                                                                                 
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=135989.33..136789.33 rows=320000 width=12) (actual time=7597.021..7598.166 rows=9348 loops=1)
   Sort Key: (sum((public.partsupp.ps_supplycost * (public.partsupp.ps_availqty)::double precision)))
   Sort Method: quicksort  Memory: 823kB
   Buffers: shared hit=663866 read=6322 written=245
   InitPlan 1 (returns $2)
     ->  Aggregate  (cost=49764.49..49764.50 rows=1 width=8) (actual time=3549.453..3549.453 rows=1 loops=1)
           Buffers: shared hit=334925 read=167
           ->  Nested Loop  (cost=79.26..47364.49 rows=320000 width=8) (actual time=1.496..3431.211 rows=320320 loops=1)
                 Buffers: shared hit=334925 read=167
                 ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=4) (actual time=1.468..40.410 rows=4004 loops=1)
                       Buffers: shared hit=1872
                       ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.023..0.026 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=8) (actual time=1.429..37.722 rows=4004 loops=1)
                             Recheck Cond: (s_nationkey = public.nation.n_nationkey)
                             Buffers: shared hit=1871
                             ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=1.045..1.045 rows=4004 loops=1)
                                   Index Cond: (s_nationkey = public.nation.n_nationkey)
                                   Buffers: shared hit=13
                 ->  Index Scan using partsupp_ps_suppkey_idx on partsupp  (cost=0.00..10.44 rows=80 width=12) (actual time=0.048..0.819 rows=80 loops=4004)
                       Index Cond: (ps_suppkey = public.supplier.s_suppkey)
                       Buffers: shared hit=333053 read=167
   ->  HashAggregate  (cost=52964.49..56964.49 rows=320000 width=12) (actual time=7461.644..7590.833 rows=9348 loops=1)
         Filter: (sum((public.partsupp.ps_supplycost * (public.partsupp.ps_availqty)::double precision)) > $2)
         Rows Removed by Filter: 292171
         Buffers: shared hit=663863 read=6322 written=245
         ->  Nested Loop  (cost=79.26..47364.49 rows=320000 width=12) (actual time=5.395..3461.515 rows=320320 loops=1)
               Buffers: shared hit=328938 read=6155 written=245
               ->  Nested Loop  (cost=79.26..2391.58 rows=4000 width=4) (actual time=5.255..52.391 rows=4004 loops=1)
                     Buffers: shared hit=1859 read=14 written=4
                     ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.024..0.026 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=8) (actual time=5.217..50.211 rows=4004 loops=1)
                           Recheck Cond: (s_nationkey = public.nation.n_nationkey)
                           Buffers: shared hit=1858 read=14 written=4
                           ->  Bitmap Index Scan on supplier_s_nationkey_s_suppkey_idx  (cost=0.00..78.26 rows=4000 width=0) (actual time=4.799..4.799 rows=4004 loops=1)
                                 Index Cond: (s_nationkey = public.nation.n_nationkey)
                                 Buffers: shared read=14 written=4
               ->  Index Scan using partsupp_ps_suppkey_idx on partsupp  (cost=0.00..10.44 rows=80 width=16) (actual time=0.074..0.817 rows=80 loops=4004)
                     Index Cond: (ps_suppkey = public.supplier.s_suppkey)
                     Buffers: shared hit=327079 read=6141 written=241
 Total runtime: 7607.009 ms
(46 rows)

COMMIT;
COMMIT