BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	p_brand,
	p_type,
	p_size,
	count(distinct ps_suppkey) as supplier_cnt
from
	partsupp,
	part
where
	p_partkey = ps_partkey
	and p_brand <> 'Brand#45'
	and p_type not like 'PROMO POLISHED%'
	and p_size in (37, 49, 22, 28, 35, 43, 48, 40)
	and ps_suppkey not in (
		select
			s_suppkey
		from
			supplier
		where
			s_comment like '%Customer%Complaints%'
	)
group by
	p_brand,
	p_type,
	p_size
order by
	supplier_cnt desc,
	p_brand,
	p_type,
	p_size;
                                                                               QUERY PLAN                                                                               
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=456512.95..456582.75 rows=27917 width=40) (actual time=45235.933..45238.548 rows=27840 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2968kB
   Buffers: shared hit=192369 read=20072
   ->  GroupAggregate  (cost=446760.11..454451.44 rows=27917 width=40) (actual time=43985.026..44858.529 rows=27840 loops=1)
         Buffers: shared hit=192353 read=20072
         ->  Sort  (cost=446760.11..448242.54 rows=592973 width=40) (actual time=43984.892..44252.440 rows=1188323 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141990kB
               Buffers: shared hit=192353 read=20072
               ->  Hash Join  (cost=58013.37..389901.10 rows=592973 width=40) (actual time=1226.061..13245.327 rows=1188323 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=192353 read=20072
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.362..5171.831 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=163421 read=7594
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.079..1.275 rows=56 loops=1)
                                   Buffers: shared hit=57
                     ->  Hash  (cost=54282.75..54282.75 rows=297771 width=40) (actual time=1224.099..1224.099 rows=297249 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21519kB
                           Buffers: shared hit=28932 read=12478
                           ->  Bitmap Heap Scan on part  (cost=5742.25..54282.75 rows=297771 width=40) (actual time=121.626..1003.174 rows=297249 loops=1)
                                 Recheck Cond: (p_size = ANY ('{37,49,22,28,35,43,48,40}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#45'::bpchar) AND ((p_type)::text !~~ 'PROMO POLISHED%'::text))
                                 Rows Removed by Filter: 23291
                                 Buffers: shared hit=28932 read=12478
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5667.81 rows=320740 width=0) (actual time=106.937..106.937 rows=320540 loops=1)
                                       Index Cond: (p_size = ANY ('{37,49,22,28,35,43,48,40}'::integer[]))
                                       Buffers: shared hit=238 read=661
 Total runtime: 45257.050 ms
(32 rows)

COMMIT;
COMMIT