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#35'
	and p_type not like 'SMALL POLISHED%'
	and p_size in (10, 29, 47, 35, 19, 44, 21, 5)
	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=416833.01..416902.76 rows=27900 width=40) (actual time=9142.559..9144.610 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=164879 read=47567
   ->  GroupAggregate  (cost=407053.90..414772.88 rows=27900 width=40) (actual time=8350.016..9089.739 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=164865 read=47567
         ->  Sort  (cost=407053.90..408541.90 rows=595198 width=40) (actual time=8349.934..8524.696 rows=1187761 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141946kB
               Buffers: shared hit=164865 read=47567
               ->  Hash Join  (cost=58055.48..349965.46 rows=595198 width=40) (actual time=964.461..5547.351 rows=1187761 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=164865 read=47567
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.394..3124.772 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=164855 read=6159
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.042..0.342 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54319.26..54319.26 rows=297599 width=40) (actual time=961.803..961.803 rows=297118 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25605kB
                           Buffers: shared hit=10 read=41408
                           ->  Bitmap Heap Scan on part  (cost=5773.09..54319.26 rows=297599 width=40) (actual time=79.539..833.566 rows=297118 loops=1)
                                 Recheck Cond: (p_size = ANY ('{10,29,47,35,19,44,21,5}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'SMALL POLISHED%'::text))
                                 Rows Removed by Filter: 23294
                                 Heap Blocks: exact=40517
                                 Buffers: shared hit=10 read=41408
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5698.69 rows=320967 width=0) (actual time=70.118..70.118 rows=320412 loops=1)
                                       Index Cond: (p_size = ANY ('{10,29,47,35,19,44,21,5}'::integer[]))
                                       Buffers: shared hit=7 read=894
 Planning time: 4.071 ms
 Execution time: 9158.337 ms
(35 rows)

COMMIT;
COMMIT