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#44'
	and p_type not like 'PROMO BRUSHED%'
	and p_size in (24, 37, 35, 15, 46, 36, 42, 4)
	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=456263.34..456332.69 rows=27740 width=40) (actual time=58950.702..58952.461 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=136547 read=75895
   ->  GroupAggregate  (cost=446541.44..454216.17 rows=27740 width=40) (actual time=57533.154..58560.196 rows=27839 loops=1)
         Buffers: shared hit=136531 read=75895
         ->  Sort  (cost=446541.44..448020.91 rows=591786 width=40) (actual time=57533.041..57870.830 rows=1191908 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142270kB
               Buffers: shared hit=136531 read=75895
               ->  Hash Join  (cost=57928.94..389804.80 rows=591786 width=40) (actual time=5072.823..24268.800 rows=1191908 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=136531 read=75895
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.378..11248.325 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=136517 read=34498
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.064..1.293 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54221.80..54221.80 rows=295893 width=40) (actual time=5071.032..5071.032 rows=298141 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21596kB
                           Buffers: shared hit=14 read=41397
                           ->  Bitmap Heap Scan on part  (cost=5727.80..54221.80 rows=295893 width=40) (actual time=277.133..4790.121 rows=298141 loops=1)
                                 Recheck Cond: (p_size = ANY ('{24,37,35,15,46,36,42,4}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'PROMO BRUSHED%'::text))
                                 Rows Removed by Filter: 23183
                                 Buffers: shared hit=14 read=41397
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5653.83 rows=318880 width=0) (actual time=258.803..258.803 rows=321324 loops=1)
                                       Index Cond: (p_size = ANY ('{24,37,35,15,46,36,42,4}'::integer[]))
                                       Buffers: shared hit=12 read=890
 Total runtime: 58979.848 ms
(32 rows)

COMMIT;
COMMIT