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#13'
	and p_type not like 'STANDARD BURNISHED%'
	and p_size in (9, 40, 22, 32, 28, 45, 14, 3)
	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=456690.14..456759.82 rows=27874 width=40) (actual time=48887.907..48893.098 rows=27840 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2944kB
   Buffers: shared hit=21015 read=191434 written=294
   ->  GroupAggregate  (cost=446920.37..454632.11 rows=27874 width=40) (actual time=47613.994..48523.250 rows=27840 loops=1)
         Buffers: shared hit=20999 read=191434 written=294
         ->  Sort  (cost=446920.37..448406.97 rows=594640 width=40) (actual time=47613.884..47892.406 rows=1185001 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141731kB
               Buffers: shared hit=20999 read=191434 written=294
               ->  Hash Join  (cost=57985.07..389889.47 rows=594640 width=40) (actual time=1851.595..15938.118 rows=1185001 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=20999 read=191434 written=294
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=3.259..7129.662 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=11516 read=159499 written=17
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.100..3.149 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54260.09..54260.09 rows=297320 width=40) (actual time=1847.962..1847.962 rows=296424 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21417kB
                           Buffers: shared hit=9483 read=31935 written=277
                           ->  Bitmap Heap Scan on part  (cost=5736.92..54260.09 rows=297320 width=40) (actual time=203.235..1622.663 rows=296424 loops=1)
                                 Recheck Cond: (p_size = ANY ('{9,40,22,32,28,45,14,3}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#13'::bpchar) AND ((p_type)::text !~~ 'STANDARD BURNISHED%'::text))
                                 Rows Removed by Filter: 22975
                                 Buffers: shared hit=9483 read=31935 written=277
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5662.59 rows=320047 width=0) (actual time=187.772..187.772 rows=319399 loops=1)
                                       Index Cond: (p_size = ANY ('{9,40,22,32,28,45,14,3}'::integer[]))
                                       Buffers: shared hit=7 read=891 written=179
 Total runtime: 48913.268 ms
(32 rows)

COMMIT;
COMMIT