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#22'
	and p_type not like 'LARGE ANODIZED%'
	and p_size in (33, 6, 3, 20, 35, 29, 46, 19)
	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=416678.45..416748.35 rows=27961 width=40) (actual time=9340.847..9342.535 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=81 read=212360
   ->  GroupAggregate  (cost=406912.32..414613.37 rows=27961 width=40) (actual time=8464.885..9291.962 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=67 read=212360
         ->  Sort  (cost=406912.32..408396.61 rows=593715 width=40) (actual time=8464.752..8715.477 rows=1188370 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141994kB
               Buffers: shared hit=67 read=212360
               ->  Hash Join  (cost=58081.65..349976.80 rows=593715 width=40) (actual time=973.954..5836.066 rows=1188370 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=67 read=212360
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.816..3523.705 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=57 read=170957
                           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..0.757 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54337.39..54337.39 rows=298243 width=40) (actual time=970.719..970.719 rows=297270 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25615kB
                           Buffers: shared hit=10 read=41403
                           ->  Bitmap Heap Scan on part  (cost=5777.39..54337.39 rows=298243 width=40) (actual time=72.591..851.917 rows=297270 loops=1)
                                 Recheck Cond: (p_size = ANY ('{33,6,3,20,35,29,46,19}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#22'::bpchar) AND ((p_type)::text !~~ 'LARGE ANODIZED%'::text))
                                 Rows Removed by Filter: 23048
                                 Heap Blocks: exact=40514
                                 Buffers: shared hit=10 read=41403
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5702.83 rows=321520 width=0) (actual time=62.902..62.902 rows=320318 loops=1)
                                       Index Cond: (p_size = ANY ('{33,6,3,20,35,29,46,19}'::integer[]))
                                       Buffers: shared hit=8 read=891
 Planning time: 6.326 ms
 Execution time: 9353.041 ms
(35 rows)

COMMIT;
COMMIT