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#54'
	and p_type not like 'LARGE PLATED%'
	and p_size in (21, 16, 50, 35, 49, 43, 19, 11)
	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=455898.53..455967.63 rows=27638 width=40) (actual time=47517.626..47519.451 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=169939 read=42505
   ->  GroupAggregate  (cost=446213.30..453859.63 rows=27638 width=40) (actual time=46357.534..47179.021 rows=27840 loops=1)
         Buffers: shared hit=169923 read=42505
         ->  Sort  (cost=446213.30..447687.29 rows=589596 width=40) (actual time=46357.391..46615.905 rows=1185562 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141775kB
               Buffers: shared hit=169923 read=42505
               ->  Hash Join  (cost=57848.43..389702.39 rows=589596 width=40) (actual time=3042.582..16385.967 rows=1185562 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=169923 read=42505
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.603..6423.293 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=158530 read=12485
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.096..1.517 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54154.97..54154.97 rows=294798 width=40) (actual time=3040.336..3040.336 rows=296550 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21493kB
                           Buffers: shared hit=11393 read=30020
                           ->  Bitmap Heap Scan on part  (cost=5690.65..54154.97 rows=294798 width=40) (actual time=219.518..2808.941 rows=296550 loops=1)
                                 Recheck Cond: (p_size = ANY ('{21,16,50,35,49,43,19,11}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#54'::bpchar) AND ((p_type)::text !~~ 'LARGE PLATED%'::text))
                                 Rows Removed by Filter: 23206
                                 Buffers: shared hit=11393 read=30020
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5616.95 rows=317693 width=0) (actual time=202.120..202.120 rows=319756 loops=1)
                                       Index Cond: (p_size = ANY ('{21,16,50,35,49,43,19,11}'::integer[]))
                                       Buffers: shared hit=12 read=886
 Total runtime: 47540.199 ms
(32 rows)

COMMIT;
COMMIT