BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	s_name,
	s_address
from
	supplier,
	nation
where
	s_suppkey in (
		select
			distinct (ps_suppkey)
		from
			partsupp,
			part
		where
			ps_partkey=p_partkey
			and p_name like 'dodger%'
			and ps_availqty > (
				select
					0.5 * sum(l_quantity)
				from
					lineitem
				where
					l_partkey = ps_partkey
					and l_suppkey = ps_suppkey
					and l_shipdate >= '1994-01-01'
					and l_shipdate < cast(date '1994-01-01' + interval '1 year' as date)
			)
	)
	and s_nationkey = n_nationkey
	and n_name = 'ARGENTINA'
order by
	s_name;
                                                                                                  QUERY PLAN                                                                                                   
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=13095266.70..13095269.63 rows=1169 width=51) (actual time=41351.376..41351.570 rows=1806 loops=1)
   Sort Key: supplier.s_name
   Sort Method: quicksort  Memory: 259kB
   Buffers: shared hit=2761664 read=339270 dirtied=5364 written=134
   ->  Nested Loop  (cost=13090801.92..13095207.14 rows=1169 width=51) (actual time=41154.324..41333.973 rows=1806 loops=1)
         Join Filter: (supplier.s_nationkey = nation.n_nationkey)
         Rows Removed by Join Filter: 42842
         Buffers: shared hit=2761659 read=339270 dirtied=5364 written=134
         ->  Seq Scan on nation  (cost=0.00..1.31 rows=1 width=4) (actual time=0.014..0.034 rows=1 loops=1)
               Filter: (n_name = 'ARGENTINA'::bpchar)
               Rows Removed by Filter: 24
               Buffers: shared hit=1
         ->  Hash Semi Join  (cost=13090801.92..13094840.64 rows=29215 width=55) (actual time=41154.228..41324.778 rows=44648 loops=1)
               Hash Cond: (supplier.s_suppkey = partsupp.ps_suppkey)
               Buffers: shared hit=2761658 read=339270 dirtied=5364 written=134
               ->  Seq Scan on supplier  (cost=0.00..3179.00 rows=100000 width=59) (actual time=0.027..50.221 rows=100000 loops=1)
                     Buffers: shared hit=2179
               ->  Hash  (cost=13090436.73..13090436.73 rows=29215 width=4) (actual time=41154.153..41154.153 rows=44648 loops=1)
                     Buckets: 4096  Batches: 1  Memory Usage: 1570kB
                     Buffers: shared hit=2759479 read=339270 dirtied=5364 written=134
                     ->  HashAggregate  (cost=13089852.43..13090144.58 rows=29215 width=4) (actual time=41104.458..41134.314 rows=44648 loops=1)
                           Buffers: shared hit=2759479 read=339270 dirtied=5364 written=134
                           ->  Nested Loop  (cost=0.00..13089779.39 rows=29215 width=4) (actual time=3.930..40926.831 rows=58806 loops=1)
                                 Buffers: shared hit=2759479 read=339270 dirtied=5364 written=134
                                 ->  Seq Scan on part  (cost=0.00..65522.00 rows=22022 width=4) (actual time=0.064..2332.088 rows=21625 loops=1)
                                       Filter: ((p_name)::text ~~ 'dodger%'::text)
                                       Rows Removed by Filter: 1978375
                                       Buffers: shared hit=7168 read=33354 written=20
                                 ->  Index Scan using pk_partsupp on partsupp  (cost=0.00..591.41 rows=1 width=8) (actual time=1.214..1.780 rows=3 loops=21625)
                                       Index Cond: (ps_partkey = part.p_partkey)
                                       Filter: ((ps_availqty)::double precision > (SubPlan 1))
                                       Rows Removed by Filter: 1
                                       Buffers: shared hit=2752311 read=305916 dirtied=5364 written=114
                                       SubPlan 1
                                         ->  Aggregate  (cost=144.95..144.96 rows=1 width=4) (actual time=0.415..0.416 rows=1 loops=86500)
                                               Buffers: shared hit=2691697 read=277201 dirtied=5364 written=106
                                               ->  Index Scan using lineitem_l_partkey_l_quantity_l_shipmode_idx on lineitem  (cost=0.00..144.94 rows=1 width=4) (actual time=0.265..0.412 rows=1 loops=86500)
                                                     Index Cond: (l_partkey = partsupp.ps_partkey)
                                                     Filter: ((l_shipdate >= '1994-01-01'::date) AND (l_shipdate < '1995-01-01'::date) AND (l_suppkey = partsupp.ps_suppkey))
                                                     Rows Removed by Filter: 29
                                                     Buffers: shared hit=2691697 read=277201 dirtied=5364 written=106
 Total runtime: 41354.077 ms
(42 rows)

COMMIT;
COMMIT