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#45'
	and p_type not like 'STANDARD ANODIZED%'
	and p_size in (22, 5, 7, 27, 36, 16, 23, 8)
	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=412335.41..412404.81 rows=27760 width=40) (actual time=11215.143..11218.069 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=9726 read=201833 written=3561
   ->  GroupAggregate  (cost=402681.03..410286.62 rows=27760 width=40) (actual time=10421.986..11155.967 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=9712 read=201833 written=3561
         ->  Sort  (cost=402681.03..404146.63 rows=586239 width=40) (actual time=10421.922..10566.137 rows=1188359 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141993kB
               Buffers: shared hit=9712 read=201833 written=3561
               ->  Hash Join  (cost=54695.64..346516.03 rows=586239 width=40) (actual time=1299.814..6866.363 rows=1188359 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=9712 read=201833 written=3561
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.510..4045.756 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=581 read=170433 written=763
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.035..0.469 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=50978.13..50978.13 rows=296102 width=40) (actual time=1297.369..1297.369 rows=297249 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25590kB
                           Buffers: shared hit=9131 read=31400 written=2798
                           ->  Bitmap Heap Scan on part  (cost=2479.13..50978.13 rows=296102 width=40) (actual time=34.729..1174.410 rows=297249 loops=1)
                                 Recheck Cond: (p_size = ANY ('{22,5,7,27,36,16,23,8}'::integer[]))
                                 Rows Removed by Index Recheck: 1679638
                                 Filter: ((p_brand <> 'Brand#45'::bpchar) AND ((p_type)::text !~~ 'STANDARD ANODIZED%'::text))
                                 Rows Removed by Filter: 23113
                                 Heap Blocks: lossy=40522
                                 Buffers: shared hit=9131 read=31400 written=2798
                                 ->  Bitmap Index Scan on part_p_size_brin_idx  (cost=0.00..2405.11 rows=319080 width=0) (actual time=34.676..34.676 rows=3246080 loops=1)
                                       Index Cond: (p_size = ANY ('{22,5,7,27,36,16,23,8}'::integer[]))
                                       Buffers: shared hit=7 read=2
 Planning time: 3.765 ms
 Execution time: 11227.794 ms
(36 rows)

COMMIT;
COMMIT