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 'PROMO BRUSHED%'
	and p_size in (50, 35, 18, 30, 17, 47, 49, 10)
	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=457494.18..457564.45 rows=28109 width=40) (actual time=41818.035..41820.648 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=40104 read=172339 written=16
   ->  GroupAggregate  (cost=447640.36..455417.10 rows=28109 width=40) (actual time=40613.568..41463.408 rows=27839 loops=1)
         Buffers: shared hit=40088 read=172339 written=16
         ->  Sort  (cost=447640.36..449139.49 rows=599652 width=40) (actual time=40613.458..40872.838 rows=1187500 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141926kB
               Buffers: shared hit=40088 read=172339 written=16
               ->  Hash Join  (cost=58137.94..390092.46 rows=599652 width=40) (actual time=924.298..11407.321 rows=1187500 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=40088 read=172339 written=16
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.017..4583.325 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=26008 read=145007 written=16
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.060..0.955 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54381.64..54381.64 rows=299826 width=40) (actual time=922.950..922.950 rows=297041 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21517kB
                           Buffers: shared hit=14080 read=27332
                           ->  Bitmap Heap Scan on part  (cost=5786.96..54381.64 rows=299826 width=40) (actual time=88.432..781.063 rows=297041 loops=1)
                                 Recheck Cond: (p_size = ANY ('{50,35,18,30,17,47,49,10}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'PROMO BRUSHED%'::text))
                                 Rows Removed by Filter: 23122
                                 Buffers: shared hit=14080 read=27332
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5712.01 rows=322907 width=0) (actual time=74.097..74.097 rows=320163 loops=1)
                                       Index Cond: (p_size = ANY ('{50,35,18,30,17,47,49,10}'::integer[]))
                                       Buffers: shared hit=124 read=775
 Total runtime: 41838.816 ms
(32 rows)

COMMIT;
COMMIT