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#14'
	and p_type not like 'ECONOMY BRUSHED%'
	and p_size in (40, 23, 15, 41, 27, 2, 6, 4)
	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=456094.25..456163.47 rows=27687 width=40) (actual time=36672.680..36674.331 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=85 read=212357
   ->  GroupAggregate  (cost=446391.30..454051.37 rows=27687 width=40) (actual time=35660.607..36337.701 rows=27839 loops=1)
         Buffers: shared hit=69 read=212357
         ->  Sort  (cost=446391.30..447867.94 rows=590656 width=40) (actual time=35660.424..35827.880 rows=1184994 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141730kB
               Buffers: shared hit=69 read=212357
               ->  Hash Join  (cost=57906.58..389771.14 rows=590656 width=40) (actual time=826.113..8831.876 rows=1184994 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=69 read=212357
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.385..3418.243 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=57 read=170958
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.151..1.288 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54206.50..54206.50 rows=295328 width=40) (actual time=824.419..824.419 rows=296423 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21440kB
                           Buffers: shared hit=12 read=41399
                           ->  Bitmap Heap Scan on part  (cost=5724.18..54206.50 rows=295328 width=40) (actual time=84.558..717.299 rows=296423 loops=1)
                                 Recheck Cond: (p_size = ANY ('{40,23,15,41,27,2,6,4}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#14'::bpchar) AND ((p_type)::text !~~ 'ECONOMY BRUSHED%'::text))
                                 Rows Removed by Filter: 23036
                                 Buffers: shared hit=12 read=41399
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5650.35 rows=318413 width=0) (actual time=74.923..74.923 rows=319459 loops=1)
                                       Index Cond: (p_size = ANY ('{40,23,15,41,27,2,6,4}'::integer[]))
                                       Buffers: shared hit=10 read=886
 Total runtime: 36686.963 ms
(32 rows)

COMMIT;
COMMIT