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#12'
	and p_type not like 'LARGE POLISHED%'
	and p_size in (1, 30, 13, 33, 14, 20, 50, 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=456460.21..456530.00 rows=27917 width=40) (actual time=53315.586..53317.664 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=183224 read=29218
   ->  GroupAggregate  (cost=446712.52..454398.69 rows=27917 width=40) (actual time=51890.597..52909.096 rows=27839 loops=1)
         Buffers: shared hit=183208 read=29218
         ->  Sort  (cost=446712.52..448193.92 rows=592560 width=40) (actual time=51890.496..52212.783 rows=1184704 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141708kB
               Buffers: shared hit=183208 read=29218
               ->  Hash Join  (cost=58012.49..389896.09 rows=592560 width=40) (actual time=3175.967..19537.235 rows=1184704 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=183208 read=29218
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=3.513..8550.709 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=165179 read=5836
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=1.115..3.419 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54281.84..54281.84 rows=297774 width=40) (actual time=3172.129..3172.129 rows=296342 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21450kB
                           Buffers: shared hit=18029 read=23382
                           ->  Bitmap Heap Scan on part  (cost=5742.01..54281.84 rows=297774 width=40) (actual time=213.983..2899.972 rows=296342 loops=1)
                                 Recheck Cond: (p_size = ANY ('{1,30,13,33,14,20,50,26}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#12'::bpchar) AND ((p_type)::text !~~ 'LARGE POLISHED%'::text))
                                 Rows Removed by Filter: 23094
                                 Buffers: shared hit=18029 read=23382
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5667.57 rows=320713 width=0) (actual time=198.485..198.485 rows=319436 loops=1)
                                       Index Cond: (p_size = ANY ('{1,30,13,33,14,20,50,26}'::integer[]))
                                       Buffers: shared hit=122 read=775
 Total runtime: 53342.457 ms
(32 rows)

COMMIT;
COMMIT