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 'ECONOMY BRUSHED%'
	and p_size in (30, 41, 38, 21, 48, 16, 32, 26)
	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=416578.51..416648.09 rows=27830 width=40) (actual time=9565.135..9566.848 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=81 read=212363
   ->  GroupAggregate  (cost=406824.43..414524.05 rows=27830 width=40) (actual time=8602.815..9515.637 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=67 read=212363
         ->  Sort  (cost=406824.43..408308.69 rows=593706 width=40) (actual time=8602.716..8901.596 rows=1189643 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142093kB
               Buffers: shared hit=67 read=212363
               ->  Hash Join  (cost=57994.78..349889.84 rows=593706 width=40) (actual time=900.189..5854.982 rows=1189643 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=67 read=212363
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=1.260..3601.159 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=57 read=170957
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.071..1.155 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54267.89..54267.89 rows=296853 width=40) (actual time=894.794..894.794 rows=297571 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25622kB
                           Buffers: shared hit=10 read=41406
                           ->  Bitmap Heap Scan on part  (cost=5739.56..54267.89 rows=296853 width=40) (actual time=73.494..776.872 rows=297571 loops=1)
                                 Recheck Cond: (p_size = ANY ('{30,41,38,21,48,16,32,26}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'ECONOMY BRUSHED%'::text))
                                 Rows Removed by Filter: 23356
                                 Heap Blocks: exact=40515
                                 Buffers: shared hit=10 read=41406
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5665.35 rows=320253 width=0) (actual time=63.784..63.784 rows=320927 loops=1)
                                       Index Cond: (p_size = ANY ('{30,41,38,21,48,16,32,26}'::integer[]))
                                       Buffers: shared hit=8 read=893
 Planning time: 7.017 ms
 Execution time: 9575.774 ms
(35 rows)

COMMIT;
COMMIT