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#24'
	and p_type not like 'STANDARD BURNISHED%'
	and p_size in (39, 31, 22, 25, 14, 27, 37, 29)
	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=456532.92..456602.77 rows=27940 width=40) (actual time=43071.416..43073.970 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=211553 read=891
   ->  GroupAggregate  (cost=446781.13..454469.55 rows=27940 width=40) (actual time=41767.731..42695.245 rows=27840 loops=1)
         Buffers: shared hit=211537 read=891
         ->  Sort  (cost=446781.13..448262.94 rows=592721 width=40) (actual time=41767.623..42051.702 rows=1186333 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141835kB
               Buffers: shared hit=211537 read=891
               ->  Hash Join  (cost=58062.89..389948.10 rows=592721 width=40) (actual time=724.999..10898.376 rows=1186333 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=211537 read=891
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.778..4043.069 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=171012 read=3
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.041..0.717 rows=56 loops=1)
                                   Buffers: shared hit=57
                     ->  Hash  (cost=54329.19..54329.19 rows=298018 width=40) (actual time=724.024..724.024 rows=296758 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21443kB
                           Buffers: shared hit=40525 read=888
                           ->  Bitmap Heap Scan on part  (cost=5774.51..54329.19 rows=298018 width=40) (actual time=86.518..593.651 rows=296758 loops=1)
                                 Recheck Cond: (p_size = ANY ('{39,31,22,25,14,27,37,29}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'STANDARD BURNISHED%'::text))
                                 Rows Removed by Filter: 22718
                                 Buffers: shared hit=40525 read=888
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5700.01 rows=321307 width=0) (actual time=75.684..75.684 rows=319476 loops=1)
                                       Index Cond: (p_size = ANY ('{39,31,22,25,14,27,37,29}'::integer[]))
                                       Buffers: shared hit=11 read=888
 Total runtime: 43090.902 ms
(32 rows)

COMMIT;
COMMIT