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#22'
	and p_type not like 'ECONOMY ANODIZED%'
	and p_size in (43, 19, 6, 9, 25, 8, 27, 31)
	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=416420.20..416489.92 rows=27890 width=40) (actual time=9590.953..9593.965 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=168874 read=43563 written=8
   ->  GroupAggregate  (cost=406679.33..414360.88 rows=27890 width=40) (actual time=8824.924..9537.449 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=168860 read=43563 written=8
         ->  Sort  (cost=406679.33..408159.86 rows=592212 width=40) (actual time=8824.853..8983.536 rows=1184359 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141681kB
               Buffers: shared hit=168860 read=43563 written=8
               ->  Hash Join  (cost=58018.65..349898.77 rows=592212 width=40) (actual time=986.607..6005.352 rows=1184359 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=168860 read=43563 written=8
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.548..3399.643 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=168847 read=2167
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.043..0.497 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54283.82..54283.82 rows=297488 width=40) (actual time=982.659..982.659 rows=296250 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25526kB
                           Buffers: shared hit=13 read=41396 written=8
                           ->  Bitmap Heap Scan on part  (cost=5743.32..54283.82 rows=297488 width=40) (actual time=74.091..845.065 rows=296250 loops=1)
                                 Recheck Cond: (p_size = ANY ('{43,19,6,9,25,8,27,31}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#22'::bpchar) AND ((p_type)::text !~~ 'ECONOMY ANODIZED%'::text))
                                 Rows Removed by Filter: 22806
                                 Heap Blocks: exact=40514
                                 Buffers: shared hit=13 read=41396 written=8
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5668.95 rows=320740 width=0) (actual time=64.612..64.612 rows=319056 loops=1)
                                       Index Cond: (p_size = ANY ('{43,19,6,9,25,8,27,31}'::integer[]))
                                       Buffers: shared hit=10 read=885
 Planning time: 4.147 ms
 Execution time: 9606.976 ms
(35 rows)

COMMIT;
COMMIT