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 'PROMO BURNISHED%'
	and p_size in (37, 50, 46, 28, 4, 1, 15, 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=456247.48..456317.01 rows=27812 width=40) (actual time=45583.741..45587.749 rows=27838 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=211535 read=910
   ->  GroupAggregate  (cost=446525.56..454194.48 rows=27812 width=40) (actual time=44223.756..45188.385 rows=27838 loops=1)
         Buffers: shared hit=211519 read=910
         ->  Sort  (cost=446525.56..448003.72 rows=591264 width=40) (actual time=44223.643..44533.412 rows=1185047 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141734kB
               Buffers: shared hit=211519 read=910
               ->  Hash Join  (cost=57972.09..389842.73 rows=591264 width=40) (actual time=1224.560..12271.662 rows=1185047 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=211519 read=910
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.965..4910.914 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=171003 read=12
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.084..0.901 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54255.35..54255.35 rows=296661 width=40) (actual time=1223.275..1223.275 rows=296428 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21441kB
                           Buffers: shared hit=40516 read=898
                           ->  Bitmap Heap Scan on part  (cost=5735.67..54255.35 rows=296661 width=40) (actual time=191.178..1018.371 rows=296428 loops=1)
                                 Recheck Cond: (p_size = ANY ('{37,50,46,28,4,1,15,5}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text))
                                 Rows Removed by Filter: 23064
                                 Buffers: shared hit=40516 read=898
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5661.51 rows=319907 width=0) (actual time=166.914..166.914 rows=319492 loops=1)
                                       Index Cond: (p_size = ANY ('{37,50,46,28,4,1,15,5}'::integer[]))
                                       Buffers: shared hit=9 read=888
 Total runtime: 45605.920 ms
(32 rows)

COMMIT;
COMMIT