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 'SMALL POLISHED%'
	and p_size in (1, 41, 44, 9, 22, 39, 12, 30)
	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=456781.98..456851.70 rows=27888 width=40) (actual time=63862.827..63866.372 rows=27838 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=71361 read=141081
   ->  GroupAggregate  (cost=447007.29..454722.82 rows=27888 width=40) (actual time=62459.784..63445.554 rows=27838 loops=1)
         Buffers: shared hit=71345 read=141081
         ->  Sort  (cost=447007.29..448494.62 rows=594932 width=40) (actual time=62459.676..62774.927 rows=1186587 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141855kB
               Buffers: shared hit=71345 read=141081
               ->  Hash Join  (cost=58038.95..389946.27 rows=594932 width=40) (actual time=4647.489..29218.462 rows=1186587 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=71345 read=141081
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.186..15785.504 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=66709 read=104306
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.094..1.083 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54312.15..54312.15 rows=297466 width=40) (actual time=4645.955..4645.955 rows=296815 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21487kB
                           Buffers: shared hit=4636 read=36775
                           ->  Bitmap Heap Scan on part  (cost=5770.47..54312.15 rows=297466 width=40) (actual time=290.592..4362.958 rows=296815 loops=1)
                                 Recheck Cond: (p_size = ANY ('{1,41,44,9,22,39,12,30}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#54'::bpchar) AND ((p_type)::text !~~ 'SMALL POLISHED%'::text))
                                 Rows Removed by Filter: 22912
                                 Buffers: shared hit=4636 read=36775
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5696.11 rows=320787 width=0) (actual time=265.699..265.699 rows=319727 loops=1)
                                       Index Cond: (p_size = ANY ('{1,41,44,9,22,39,12,30}'::integer[]))
                                       Buffers: shared hit=7 read=892
 Total runtime: 63898.262 ms
(32 rows)

COMMIT;
COMMIT