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#55'
	and p_type not like 'STANDARD ANODIZED%'
	and p_size in (11, 16, 49, 42, 29, 22, 15, 14)
	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=416536.50..416606.06 rows=27822 width=40) (actual time=12173.945..12182.155 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=59968 read=152477 written=451
   ->  GroupAggregate  (cost=406785.37..414482.69 rows=27822 width=40) (actual time=11180.959..12113.033 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=59954 read=152477 written=451
         ->  Sort  (cost=406785.37..408269.19 rows=593528 width=40) (actual time=11180.868..11483.785 rows=1186100 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141817kB
               Buffers: shared hit=59954 read=152477 written=451
               ->  Hash Join  (cost=57975.85..349869.13 rows=593528 width=40) (actual time=1125.115..7619.894 rows=1186100 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=59954 read=152477 written=451
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.485..4397.862 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=49076 read=121938 written=170
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.059..0.432 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54250.07..54250.07 rows=296764 width=40) (actual time=1119.173..1119.173 rows=296698 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25550kB
                           Buffers: shared hit=10878 read=30539 written=281
                           ->  Bitmap Heap Scan on part  (cost=5735.40..54250.07 rows=296764 width=40) (actual time=139.113..951.114 rows=296698 loops=1)
                                 Recheck Cond: (p_size = ANY ('{11,16,49,42,29,22,15,14}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#55'::bpchar) AND ((p_type)::text !~~ 'STANDARD ANODIZED%'::text))
                                 Rows Removed by Filter: 23217
                                 Heap Blocks: exact=40517
                                 Buffers: shared hit=10878 read=30539 written=281
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5661.21 rows=319707 width=0) (actual time=121.705..121.705 rows=319915 loops=1)
                                       Index Cond: (p_size = ANY ('{11,16,49,42,29,22,15,14}'::integer[]))
                                       Buffers: shared hit=10 read=890 written=4
 Planning time: 5.313 ms
 Execution time: 12205.363 ms
(35 rows)

COMMIT;
COMMIT