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#54'
	and p_type not like 'PROMO BURNISHED%'
	and p_size in (41, 1, 8, 13, 30, 46, 26, 35)
	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=456976.88..457046.75 rows=27948 width=40) (actual time=44034.970..44036.643 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=153106 read=59336
   ->  GroupAggregate  (cost=447180.68..454912.86 rows=27948 width=40) (actual time=42889.912..43700.191 rows=27839 loops=1)
         Buffers: shared hit=153090 read=59336
         ->  Sort  (cost=447180.68..448671.22 rows=596216 width=40) (actual time=42889.795..43138.861 rows=1189488 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142081kB
               Buffers: shared hit=153090 read=59336
               ->  Hash Join  (cost=58067.08..389987.24 rows=596216 width=40) (actual time=2440.223..14399.639 rows=1189488 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=153090 read=59336
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.136..4887.690 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=150904 read=20111
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.101..1.030 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54332.25..54332.25 rows=298108 width=40) (actual time=2438.264..2438.264 rows=297535 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21522kB
                           Buffers: shared hit=2186 read=39225
                           ->  Bitmap Heap Scan on part  (cost=5775.25..54332.25 rows=298108 width=40) (actual time=219.057..2185.867 rows=297535 loops=1)
                                 Recheck Cond: (p_size = ANY ('{41,1,8,13,30,46,26,35}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#54'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text))
                                 Rows Removed by Filter: 22928
                                 Buffers: shared hit=2186 read=39225
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5700.73 rows=321400 width=0) (actual time=201.002..201.002 rows=320463 loops=1)
                                       Index Cond: (p_size = ANY ('{41,1,8,13,30,46,26,35}'::integer[]))
                                       Buffers: shared hit=8 read=891
 Total runtime: 44054.813 ms
(32 rows)

COMMIT;
COMMIT