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#44'
	and p_type not like 'LARGE PLATED%'
	and p_size in (17, 26, 40, 50, 47, 34, 8, 5)
	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=457021.70..457091.80 rows=28043 width=40) (actual time=45990.651..45993.473 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=202901 read=9547
   ->  GroupAggregate  (cost=447217.48..454949.97 rows=28043 width=40) (actual time=44686.954..45611.929 rows=27839 loops=1)
         Buffers: shared hit=202885 read=9547
         ->  Sort  (cost=447217.48..448707.89 rows=596165 width=40) (actual time=44686.856..44976.163 rows=1184862 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141720kB
               Buffers: shared hit=202885 read=9547
               ->  Hash Join  (cost=58109.65..390029.30 rows=596165 width=40) (actual time=947.571..12544.895 rows=1184862 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=202885 read=9547
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.196..4745.859 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=166871 read=4144
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.043..1.082 rows=56 loops=1)
                                   Buffers: shared hit=57
                     ->  Hash  (cost=54362.17..54362.17 rows=299120 width=40) (actual time=945.922..945.922 rows=296381 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21480kB
                           Buffers: shared hit=36014 read=5403
                           ->  Bitmap Heap Scan on part  (cost=5782.35..54362.17 rows=299120 width=40) (actual time=128.097..781.100 rows=296381 loops=1)
                                 Recheck Cond: (p_size = ANY ('{17,26,40,50,47,34,8,5}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'LARGE PLATED%'::text))
                                 Rows Removed by Filter: 23146
                                 Buffers: shared hit=36014 read=5403
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5707.57 rows=322313 width=0) (actual time=112.922..112.922 rows=319527 loops=1)
                                       Index Cond: (p_size = ANY ('{17,26,40,50,47,34,8,5}'::integer[]))
                                       Buffers: shared hit=127 read=773
 Total runtime: 46013.585 ms
(32 rows)

COMMIT;
COMMIT