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#44'
	and p_type not like 'STANDARD POLISHED%'
	and p_size in (16, 48, 46, 11, 35, 17, 3, 6)
	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=456353.00..456422.74 rows=27896 width=40) (actual time=46808.808..46815.678 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=6669 read=205778
   ->  GroupAggregate  (cost=446616.91..454293.20 rows=27896 width=40) (actual time=45458.919..46408.894 rows=27840 loops=1)
         Buffers: shared hit=6653 read=205778
         ->  Sort  (cost=446616.91..448096.38 rows=591786 width=40) (actual time=45458.813..45762.521 rows=1191349 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142227kB
               Buffers: shared hit=6653 read=205778
               ->  Hash Join  (cost=58004.41..389880.27 rows=591786 width=40) (actual time=1498.071..14441.933 rows=1191349 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=6653 read=205778
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.357..5814.961 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=56 read=170959
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.093..1.252 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54276.58..54276.58 rows=297548 width=40) (actual time=1495.238..1495.238 rows=297999 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21548kB
                           Buffers: shared hit=6597 read=34819
                           ->  Bitmap Heap Scan on part  (cost=5740.75..54276.58 rows=297548 width=40) (actual time=133.471..1139.191 rows=297999 loops=1)
                                 Recheck Cond: (p_size = ANY ('{16,48,46,11,35,17,3,6}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'STANDARD POLISHED%'::text))
                                 Rows Removed by Filter: 22995
                                 Buffers: shared hit=6597 read=34819
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5666.37 rows=320553 width=0) (actual time=118.453..118.453 rows=320994 loops=1)
                                       Index Cond: (p_size = ANY ('{16,48,46,11,35,17,3,6}'::integer[]))
                                       Buffers: shared hit=8 read=894
 Total runtime: 46842.906 ms
(32 rows)

COMMIT;
COMMIT