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#41'
	and p_type not like 'MEDIUM POLISHED%'
	and p_size in (35, 41, 38, 8, 47, 40, 46, 22)
	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=416532.19..416601.74 rows=27819 width=40) (actual time=13640.285..13644.387 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=196393 read=16046
   ->  GroupAggregate  (cost=406782.21..414478.62 rows=27819 width=40) (actual time=12573.641..13582.096 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=196379 read=16046
         ->  Sort  (cost=406782.21..408265.85 rows=593458 width=40) (actual time=12573.531..12900.164 rows=1190479 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142159kB
               Buffers: shared hit=196379 read=16046
               ->  Hash Join  (cost=57980.60..349873.18 rows=593458 width=40) (actual time=2140.960..8670.861 rows=1190479 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=196379 read=16046
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.365..4209.862 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=165632 read=5382
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.024..0.313 rows=56 loops=1)
                                   Buffers: shared hit=56
                     ->  Hash  (cost=54255.26..54255.26 rows=296729 width=40) (actual time=2137.558..2137.558 rows=297782 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25637kB
                           Buffers: shared hit=30747 read=10664
                           ->  Bitmap Heap Scan on part  (cost=5736.59..54255.26 rows=296729 width=40) (actual time=178.818..1914.201 rows=297782 loops=1)
                                 Recheck Cond: (p_size = ANY ('{35,41,38,8,47,40,46,22}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#41'::bpchar) AND ((p_type)::text !~~ 'MEDIUM POLISHED%'::text))
                                 Rows Removed by Filter: 23091
                                 Heap Blocks: exact=40510
                                 Buffers: shared hit=30747 read=10664
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5662.41 rows=319867 width=0) (actual time=161.268..161.268 rows=320873 loops=1)
                                       Index Cond: (p_size = ANY ('{35,41,38,8,47,40,46,22}'::integer[]))
                                       Buffers: shared hit=235 read=666
 Planning time: 3.877 ms
 Execution time: 13658.944 ms
(35 rows)

COMMIT;
COMMIT