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 'LARGE POLISHED%'
	and p_size in (45, 2, 9, 17, 18, 20, 43, 34)
	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=456395.18..456464.92 rows=27897 width=40) (actual time=49823.570..49828.120 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=211527 read=915
   ->  GroupAggregate  (cost=446654.67..454335.29 rows=27897 width=40) (actual time=48502.247..49420.377 rows=27839 loops=1)
         Buffers: shared hit=211511 read=915
         ->  Sort  (cost=446654.67..448135.00 rows=592132 width=40) (actual time=48502.128..48797.789 rows=1183648 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141625kB
               Buffers: shared hit=211511 read=915
               ->  Hash Join  (cost=58003.04..389882.36 rows=592132 width=40) (actual time=1799.267..16247.047 rows=1183648 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=211511 read=915
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.964..6739.744 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=170985 read=30
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.593..1.853 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54275.07..54275.07 rows=297559 width=40) (actual time=1796.922..1796.922 rows=296078 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21432kB
                           Buffers: shared hit=40526 read=885
                           ->  Bitmap Heap Scan on part  (cost=5740.40..54275.07 rows=297559 width=40) (actual time=175.890..1533.730 rows=296078 loops=1)
                                 Recheck Cond: (p_size = ANY ('{45,2,9,17,18,20,43,34}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#42'::bpchar) AND ((p_type)::text !~~ 'LARGE POLISHED%'::text))
                                 Rows Removed by Filter: 22827
                                 Buffers: shared hit=40526 read=885
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5666.01 rows=320507 width=0) (actual time=157.964..157.964 rows=318905 loops=1)
                                       Index Cond: (p_size = ANY ('{45,2,9,17,18,20,43,34}'::integer[]))
                                       Buffers: shared hit=10 read=885
 Total runtime: 49858.568 ms
(32 rows)

COMMIT;
COMMIT