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#44'
	and p_type not like 'STANDARD BRUSHED%'
	and p_size in (37, 38, 32, 35, 30, 6, 19, 12)
	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=456118.22..456187.66 rows=27775 width=40) (actual time=45585.320..45592.108 rows=27839 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2967kB
   Buffers: shared hit=23698 read=188749 written=250
   ->  GroupAggregate  (cost=446409.60..454068.22 rows=27775 width=40) (actual time=44301.407..45202.732 rows=27839 loops=1)
         Buffers: shared hit=23682 read=188749 written=250
         ->  Sort  (cost=446409.60..447885.78 rows=590469 width=40) (actual time=44301.284..44575.967 rows=1188573 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142010kB
               Buffers: shared hit=23682 read=188749 written=250
               ->  Hash Join  (cost=57946.03..389808.72 rows=590469 width=40) (actual time=1457.711..13197.919 rows=1188573 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=23682 read=188749 written=250
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.079..6306.600 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=23670 read=147345 written=199
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.087..0.997 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54234.27..54234.27 rows=296262 width=40) (actual time=1456.341..1456.341 rows=297318 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21507kB
                           Buffers: shared hit=12 read=41404 written=51
                           ->  Bitmap Heap Scan on part  (cost=5730.77..54234.27 rows=296262 width=40) (actual time=111.319..1262.946 rows=297318 loops=1)
                                 Recheck Cond: (p_size = ANY ('{37,38,32,35,30,6,19,12}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'STANDARD BRUSHED%'::text))
                                 Rows Removed by Filter: 23012
                                 Buffers: shared hit=12 read=41404 written=51
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5656.71 rows=319260 width=0) (actual time=95.989..95.989 rows=320330 loops=1)
                                       Index Cond: (p_size = ANY ('{37,38,32,35,30,6,19,12}'::integer[]))
                                       Buffers: shared hit=10 read=889
 Total runtime: 45611.981 ms
(32 rows)

COMMIT;
COMMIT