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#12'
	and p_type not like 'STANDARD BURNISHED%'
	and p_size in (47, 39, 2, 36, 22, 46, 50, 35)
	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=416356.36..416426.04 rows=27873 width=40) (actual time=11056.469..11059.968 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=127696 read=84746 written=358
   ->  GroupAggregate  (cost=406621.62..414298.41 rows=27873 width=40) (actual time=10064.159..11002.482 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=127682 read=84746 written=358
         ->  Sort  (cost=406621.62..408101.23 rows=591845 width=40) (actual time=10064.060..10359.079 rows=1187765 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141947kB
               Buffers: shared hit=127682 read=84746 written=358
               ->  Hash Join  (cost=58002.45..349878.90 rows=591845 width=40) (actual time=1054.010..6517.208 rows=1187765 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=127682 read=84746 written=358
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.471..3676.011 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=127067 read=43947 written=318
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.046..0.425 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54269.92..54269.92 rows=297304 width=40) (actual time=1049.807..1049.807 rows=297109 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25562kB
                           Buffers: shared hit=615 read=40799 written=40
                           ->  Bitmap Heap Scan on part  (cost=5740.09..54269.92 rows=297304 width=40) (actual time=78.888..901.530 rows=297109 loops=1)
                                 Recheck Cond: (p_size = ANY ('{47,39,2,36,22,46,50,35}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#12'::bpchar) AND ((p_type)::text !~~ 'STANDARD BURNISHED%'::text))
                                 Rows Removed by Filter: 23116
                                 Heap Blocks: exact=40515
                                 Buffers: shared hit=615 read=40799 written=40
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5665.77 rows=320313 width=0) (actual time=69.318..69.318 rows=320225 loops=1)
                                       Index Cond: (p_size = ANY ('{47,39,2,36,22,46,50,35}'::integer[]))
                                       Buffers: shared hit=11 read=888 written=7
 Planning time: 4.254 ms
 Execution time: 11072.015 ms
(35 rows)

COMMIT;
COMMIT