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#11'
	and p_type not like 'SMALL PLATED%'
	and p_size in (4, 50, 43, 19, 23, 44, 14, 27)
	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=416403.10..416472.56 rows=27784 width=40) (actual time=13213.125..13216.179 rows=27839 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2967kB
   Buffers: shared hit=190336 read=22102
   ->  GroupAggregate  (cost=406665.60..414352.37 rows=27784 width=40) (actual time=12238.076..13159.388 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=190322 read=22102
         ->  Sort  (cost=406665.60..408147.39 rows=592714 width=40) (actual time=12237.993..12521.540 rows=1186059 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141813kB
               Buffers: shared hit=190322 read=22102
               ->  Hash Join  (cost=57948.15..349833.29 rows=592714 width=40) (actual time=1762.355..8092.278 rows=1186059 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=190322 read=22102
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.446..4195.864 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=159241 read=11773
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.028..0.353 rows=56 loops=1)
                                   Buffers: shared hit=56
                     ->  Hash  (cost=54227.46..54227.46 rows=296357 width=40) (actual time=1758.868..1758.868 rows=296686 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25595kB
                           Buffers: shared hit=31081 read=10329
                           ->  Bitmap Heap Scan on part  (cost=5730.14..54227.46 rows=296357 width=40) (actual time=173.885..1527.654 rows=296686 loops=1)
                                 Recheck Cond: (p_size = ANY ('{4,50,43,19,23,44,14,27}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#11'::bpchar) AND ((p_type)::text !~~ 'SMALL PLATED%'::text))
                                 Rows Removed by Filter: 22914
                                 Heap Blocks: exact=40513
                                 Buffers: shared hit=31081 read=10329
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5656.05 rows=319013 width=0) (actual time=155.608..155.608 rows=319600 loops=1)
                                       Index Cond: (p_size = ANY ('{4,50,43,19,23,44,14,27}'::integer[]))
                                       Buffers: shared hit=122 read=775
 Planning time: 4.844 ms
 Execution time: 13231.962 ms
(35 rows)

COMMIT;
COMMIT