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#24'
	and p_type not like 'SMALL ANODIZED%'
	and p_size in (49, 44, 25, 14, 5, 6, 18, 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=455864.22..455933.58 rows=27743 width=40) (actual time=43631.001..43634.689 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=77223 read=135221
   ->  GroupAggregate  (cost=446182.56..453816.81 rows=27743 width=40) (actual time=42355.080..43268.632 rows=27840 loops=1)
         Buffers: shared hit=77207 read=135221
         ->  Sort  (cost=446182.56..447653.92 rows=588546 width=40) (actual time=42354.972..42649.987 rows=1183614 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141622kB
               Buffers: shared hit=77207 read=135221
               ->  Hash Join  (cost=57936.39..389779.85 rows=588546 width=40) (actual time=794.097..11686.869 rows=1183614 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=77207 read=135221
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.165..4714.239 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=36570 read=134445
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.117..1.029 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54228.93..54228.93 rows=295919 width=40) (actual time=792.686..792.686 rows=296082 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21431kB
                           Buffers: shared hit=40637 read=776
                           ->  Bitmap Heap Scan on part  (cost=5729.43..54228.93 rows=295919 width=40) (actual time=96.249..575.471 rows=296082 loops=1)
                                 Recheck Cond: (p_size = ANY ('{49,44,25,14,5,6,18,40}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'SMALL ANODIZED%'::text))
                                 Rows Removed by Filter: 23015
                                 Buffers: shared hit=40637 read=776
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5655.45 rows=319100 width=0) (actual time=85.484..85.484 rows=319097 loops=1)
                                       Index Cond: (p_size = ANY ('{49,44,25,14,5,6,18,40}'::integer[]))
                                       Buffers: shared hit=120 read=776
 Total runtime: 43662.311 ms
(32 rows)

COMMIT;
COMMIT