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#33'
	and p_type not like 'SMALL ANODIZED%'
	and p_size in (22, 38, 23, 17, 16, 41, 3, 8)
	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=417163.11..417233.12 rows=28002 width=40) (actual time=9964.877..9966.958 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=5166 read=207278 written=16456
   ->  GroupAggregate  (cost=407347.64..415094.71 rows=28002 width=40) (actual time=9098.506..9913.524 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=5152 read=207278 written=16456
         ->  Sort  (cost=407347.64..408841.05 rows=597364 width=40) (actual time=9098.426..9327.113 rows=1191332 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142225kB
               Buffers: shared hit=5152 read=207278 written=16456
               ->  Hash Join  (cost=58104.15..350035.79 rows=597364 width=40) (actual time=894.946..6159.763 rows=1191332 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=5152 read=207278 written=16456
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.709..3861.796 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=56 read=170958 written=12896
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.035..0.654 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54354.40..54354.40 rows=298682 width=40) (actual time=891.367..891.367 rows=297994 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25668kB
                           Buffers: shared hit=5096 read=36320 written=3560
                           ->  Bitmap Heap Scan on part  (cost=5781.40..54354.40 rows=298682 width=40) (actual time=64.294..767.687 rows=297994 loops=1)
                                 Recheck Cond: (p_size = ANY ('{22,38,23,17,16,41,3,8}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#33'::bpchar) AND ((p_type)::text !~~ 'SMALL ANODIZED%'::text))
                                 Rows Removed by Filter: 23105
                                 Heap Blocks: exact=40512
                                 Buffers: shared hit=5096 read=36320 written=3560
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5706.73 rows=322040 width=0) (actual time=55.658..55.658 rows=321099 loops=1)
                                       Index Cond: (p_size = ANY ('{22,38,23,17,16,41,3,8}'::integer[]))
                                       Buffers: shared hit=11 read=893 written=60
 Planning time: 3.844 ms
 Execution time: 9987.941 ms
(35 rows)

COMMIT;
COMMIT