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 'PROMO ANODIZED%'
	and p_size in (6, 13, 48, 22, 50, 37, 35, 3)
	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=412777.80..412847.53 rows=27893 width=40) (actual time=11102.852..11105.958 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=5572 read=205987 written=30
   ->  GroupAggregate  (cost=403076.26..410718.23 rows=27893 width=40) (actual time=10280.454..11043.630 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=5558 read=205987 written=30
         ->  Sort  (cost=403076.26..404548.87 rows=589043 width=40) (actual time=10280.394..10447.162 rows=1189442 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142078kB
               Buffers: shared hit=5558 read=205987 written=30
               ->  Hash Join  (cost=54773.91..346622.34 rows=589043 width=40) (actual time=1289.432..6731.240 rows=1189442 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=5558 read=205987 written=30
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.570..3765.783 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=5549 read=165465 written=30
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.034..0.524 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=51038.71..51038.71 rows=297518 width=40) (actual time=1286.399..1286.399 rows=297536 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25634kB
                           Buffers: shared hit=9 read=40522
                           ->  Bitmap Heap Scan on part  (cost=2493.39..51038.71 rows=297518 width=40) (actual time=34.925..1162.141 rows=297536 loops=1)
                                 Recheck Cond: (p_size = ANY ('{6,13,48,22,50,37,35,3}'::integer[]))
                                 Rows Removed by Index Recheck: 1679493
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'PROMO ANODIZED%'::text))
                                 Rows Removed by Filter: 22971
                                 Heap Blocks: lossy=40522
                                 Buffers: shared hit=9 read=40522
                                 ->  Bitmap Index Scan on part_p_size_brin_idx  (cost=0.00..2419.01 rows=320933 width=0) (actual time=34.857..34.857 rows=3246080 loops=1)
                                       Index Cond: (p_size = ANY ('{6,13,48,22,50,37,35,3}'::integer[]))
                                       Buffers: shared hit=7 read=2
 Planning time: 3.940 ms
 Execution time: 11118.879 ms
(36 rows)

COMMIT;
COMMIT