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#42'
	and p_type not like 'STANDARD BRUSHED%'
	and p_size in (43, 36, 49, 34, 44, 35, 30, 46)
	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=456150.05..456219.32 rows=27707 width=40) (actual time=51694.937..51697.141 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=56910 read=155536 written=8847
   ->  GroupAggregate  (cost=446440.21..454105.56 rows=27707 width=40) (actual time=50315.653..51297.097 rows=27839 loops=1)
         Buffers: shared hit=56894 read=155536 written=8847
         ->  Sort  (cost=446440.21..447917.87 rows=591062 width=40) (actual time=50315.539..50619.846 rows=1188100 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141973kB
               Buffers: shared hit=56894 read=155536 written=8847
               ->  Hash Join  (cost=57909.58..389778.20 rows=591062 width=40) (actual time=1603.443..17254.456 rows=1188100 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=56894 read=155536 written=8847
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.498..8521.892 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=56880 read=114135 written=8847
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.090..1.409 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54206.96..54206.96 rows=295531 width=40) (actual time=1601.652..1601.652 rows=297176 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21495kB
                           Buffers: shared hit=14 read=41401
                           ->  Bitmap Heap Scan on part  (cost=5724.29..54206.96 rows=295531 width=40) (actual time=172.052..1381.117 rows=297176 loops=1)
                                 Recheck Cond: (p_size = ANY ('{43,36,49,34,44,35,30,46}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#42'::bpchar) AND ((p_type)::text !~~ 'STANDARD BRUSHED%'::text))
                                 Rows Removed by Filter: 23146
                                 Buffers: shared hit=14 read=41401
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5650.41 rows=318427 width=0) (actual time=147.816..147.816 rows=320322 loops=1)
                                       Index Cond: (p_size = ANY ('{43,36,49,34,44,35,30,46}'::integer[]))
                                       Buffers: shared hit=12 read=887
 Total runtime: 51717.519 ms
(32 rows)

COMMIT;
COMMIT