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 'ECONOMY PLATED%'
	and p_size in (33, 17, 47, 8, 1, 13, 40, 4)
	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=457208.51..457278.76 rows=28099 width=40) (actual time=37676.589..37678.314 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=82 read=212362
   ->  GroupAggregate  (cost=447384.29..455132.24 rows=28099 width=40) (actual time=36527.478..37344.650 rows=27839 loops=1)
         Buffers: shared hit=66 read=212362
         ->  Sort  (cost=447384.29..448877.68 rows=597357 width=40) (actual time=36527.223..36777.664 rows=1187668 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141939kB
               Buffers: shared hit=66 read=212362
               ->  Hash Join  (cost=58141.59..390073.16 rows=597357 width=40) (actual time=849.024..9576.470 rows=1187668 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=66 read=212362
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.316..3544.760 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=57 read=170958
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.120..1.211 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54386.64..54386.64 rows=299718 width=40) (actual time=847.398..847.398 rows=297079 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21504kB
                           Buffers: shared hit=9 read=41404
                           ->  Bitmap Heap Scan on part  (cost=5788.14..54386.64 rows=299718 width=40) (actual time=84.054..734.117 rows=297079 loops=1)
                                 Recheck Cond: (p_size = ANY ('{33,17,47,8,1,13,40,4}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#54'::bpchar) AND ((p_type)::text !~~ 'ECONOMY PLATED%'::text))
                                 Rows Removed by Filter: 22858
                                 Buffers: shared hit=9 read=41404
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5713.21 rows=323060 width=0) (actual time=74.289..74.289 rows=319937 loops=1)
                                       Index Cond: (p_size = ANY ('{33,17,47,8,1,13,40,4}'::integer[]))
                                       Buffers: shared hit=7 read=891
 Total runtime: 37691.117 ms
(32 rows)

COMMIT;
COMMIT