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 POLISHED%'
	and p_size in (10, 47, 21, 19, 8, 26, 31, 22)
	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=457276.64..457346.75 rows=28042 width=40) (actual time=41235.297..41237.015 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=109062 read=103387
   ->  GroupAggregate  (cost=447446.73..455205.00 rows=28042 width=40) (actual time=40042.202..40899.408 rows=27840 loops=1)
         Buffers: shared hit=109046 read=103387
         ->  Sort  (cost=447446.73..448942.30 rows=598228 width=40) (actual time=40042.091..40310.983 rows=1185354 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141758kB
               Buffers: shared hit=109046 read=103387
               ->  Hash Join  (cost=58105.46..390045.74 rows=598228 width=40) (actual time=1076.116..11177.080 rows=1185354 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=109046 read=103387
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.938..3940.549 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=108393 read=62622
                           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..0.869 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54358.06..54358.06 rows=299114 width=40) (actual time=1074.841..1074.841 rows=296510 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21442kB
                           Buffers: shared hit=653 read=40765
                           ->  Bitmap Heap Scan on part  (cost=5781.39..54358.06 rows=299114 width=40) (actual time=82.553..907.754 rows=296510 loops=1)
                                 Recheck Cond: (p_size = ANY ('{10,47,21,19,8,26,31,22}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'STANDARD POLISHED%'::text))
                                 Rows Removed by Filter: 22900
                                 Buffers: shared hit=653 read=40765
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5706.61 rows=322187 width=0) (actual time=71.666..71.666 rows=319410 loops=1)
                                       Index Cond: (p_size = ANY ('{10,47,21,19,8,26,31,22}'::integer[]))
                                       Buffers: shared hit=9 read=892
 Total runtime: 41256.071 ms
(32 rows)

COMMIT;
COMMIT