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#31'
	and p_type not like 'ECONOMY ANODIZED%'
	and p_size in (34, 47, 37, 50, 3, 27, 14, 11)
	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=416661.44..416731.19 rows=27900 width=40) (actual time=10352.179..10354.299 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=42918 read=169527
   ->  GroupAggregate  (cost=406895.50..414601.30 rows=27900 width=40) (actual time=9356.034..10296.431 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=42904 read=169527
         ->  Sort  (cost=406895.50..408380.86 rows=594144 width=40) (actual time=9355.932..9629.566 rows=1185252 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141750kB
               Buffers: shared hit=42904 read=169527
               ->  Hash Join  (cost=58016.31..349915.75 rows=594144 width=40) (actual time=686.896..6258.214 rows=1185252 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=42904 read=169527
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=1.188..3940.942 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=7784 read=163230
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.075..1.092 rows=56 loops=1)
                                   Buffers: shared hit=47 read=9
                     ->  Hash  (cost=54280.18..54280.18 rows=297592 width=40) (actual time=682.289..682.289 rows=296481 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25542kB
                           Buffers: shared hit=35120 read=6297
                           ->  Bitmap Heap Scan on part  (cost=5742.51..54280.18 rows=297592 width=40) (actual time=67.302..558.187 rows=296481 loops=1)
                                 Recheck Cond: (p_size = ANY ('{34,47,37,50,3,27,14,11}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#31'::bpchar) AND ((p_type)::text !~~ 'ECONOMY ANODIZED%'::text))
                                 Rows Removed by Filter: 23109
                                 Heap Blocks: exact=40518
                                 Buffers: shared hit=35120 read=6297
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5668.11 rows=320627 width=0) (actual time=57.708..57.708 rows=319590 loops=1)
                                       Index Cond: (p_size = ANY ('{34,47,37,50,3,27,14,11}'::integer[]))
                                       Buffers: shared hit=7 read=892
 Planning time: 6.521 ms
 Execution time: 10364.267 ms
(35 rows)

COMMIT;
COMMIT