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#25'
	and p_type not like 'STANDARD PLATED%'
	and p_size in (38, 49, 8, 44, 46, 47, 30, 10)
	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=416074.98..416144.18 rows=27681 width=40) (actual time=11129.867..11133.814 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=150660 read=61780 written=1135
   ->  GroupAggregate  (cost=406374.26..414032.59 rows=27681 width=40) (actual time=10280.114..11072.879 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=150646 read=61780 written=1135
         ->  Sort  (cost=406374.26..407850.56 rows=590522 width=40) (actual time=10280.048..10474.117 rows=1188815 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142029kB
               Buffers: shared hit=150646 read=61780 written=1135
               ->  Hash Join  (cost=57904.69..349767.91 rows=590522 width=40) (actual time=896.134..6884.328 rows=1188815 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=150646 read=61780 written=1135
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.643..4292.088 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=115059 read=55955 written=1135
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.053..0.562 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54197.70..54197.70 rows=295261 width=40) (actual time=891.043..891.043 rows=297361 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25606kB
                           Buffers: shared hit=35587 read=5825
                           ->  Bitmap Heap Scan on part  (cost=5723.02..54197.70 rows=295261 width=40) (actual time=131.586..744.764 rows=297361 loops=1)
                                 Recheck Cond: (p_size = ANY ('{38,49,8,44,46,47,30,10}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#25'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text))
                                 Rows Removed by Filter: 22965
                                 Heap Blocks: exact=40512
                                 Buffers: shared hit=35587 read=5825
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5649.21 rows=318107 width=0) (actual time=115.449..115.449 rows=320326 loops=1)
                                       Index Cond: (p_size = ANY ('{38,49,8,44,46,47,30,10}'::integer[]))
                                       Buffers: shared hit=9 read=891
 Planning time: 5.784 ms
 Execution time: 11151.653 ms
(35 rows)

COMMIT;
COMMIT