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#41'
	and p_type not like 'STANDARD PLATED%'
	and p_size in (31, 11, 48, 37, 41, 19, 15, 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=456046.49..456115.69 rows=27680 width=40) (actual time=46821.088..46825.353 rows=27840 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2968kB
   Buffers: shared hit=211553 read=893
   ->  GroupAggregate  (cost=446348.29..454004.18 rows=27680 width=40) (actual time=45542.256..46450.749 rows=27840 loops=1)
         Buffers: shared hit=211537 read=893
         ->  Sort  (cost=446348.29..447824.11 rows=590327 width=40) (actual time=45542.113..45828.232 rows=1184831 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141717kB
               Buffers: shared hit=211537 read=893
               ->  Hash Join  (cost=57900.77..389762.04 rows=590327 width=40) (actual time=1135.905..13046.330 rows=1184831 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=211537 read=893
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=2.331..5233.484 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=171013 read=2
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.067..2.255 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54201.69..54201.69 rows=295248 width=40) (actual time=1133.226..1133.226 rows=296381 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21441kB
                           Buffers: shared hit=40524 read=891
                           ->  Bitmap Heap Scan on part  (cost=5723.02..54201.69 rows=295248 width=40) (actual time=178.686..919.924 rows=296381 loops=1)
                                 Recheck Cond: (p_size = ANY ('{31,11,48,37,41,19,15,46}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#41'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text))
                                 Rows Removed by Filter: 23093
                                 Buffers: shared hit=40524 read=891
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5649.21 rows=318267 width=0) (actual time=165.275..165.275 rows=319474 loops=1)
                                       Index Cond: (p_size = ANY ('{31,11,48,37,41,19,15,46}'::integer[]))
                                       Buffers: shared hit=7 read=891
 Total runtime: 46847.923 ms
(32 rows)

COMMIT;
COMMIT