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#33'
	and p_type not like 'STANDARD POLISHED%'
	and p_size in (36, 8, 46, 18, 48, 35, 24, 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=456826.72..456896.48 rows=27903 width=40) (actual time=42356.378..42358.089 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=89739 read=122711 written=12
   ->  GroupAggregate  (cost=447046.76..454766.34 rows=27903 width=40) (actual time=41133.175..42025.336 rows=27840 loops=1)
         Buffers: shared hit=89723 read=122711 written=12
         ->  Sort  (cost=447046.76..448534.87 rows=595244 width=40) (actual time=41133.023..41421.592 rows=1191236 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142218kB
               Buffers: shared hit=89723 read=122711 written=12
               ->  Hash Join  (cost=58043.13..389953.57 rows=595244 width=40) (actual time=1585.364..13207.532 rows=1191236 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=89723 read=122711 written=12
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.497..4935.870 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=89712 read=81303 written=12
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.140..1.402 rows=56 loops=1)
                                   Buffers: shared hit=52 read=5
                     ->  Hash  (cost=54314.38..54314.38 rows=297622 width=40) (actual time=1583.346..1583.346 rows=297973 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21546kB
                           Buffers: shared hit=11 read=41408
                           ->  Bitmap Heap Scan on part  (cost=5771.05..54314.38 rows=297622 width=40) (actual time=136.175..1355.637 rows=297973 loops=1)
                                 Recheck Cond: (p_size = ANY ('{36,8,46,18,48,35,24,11}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#33'::bpchar) AND ((p_type)::text !~~ 'STANDARD POLISHED%'::text))
                                 Rows Removed by Filter: 23174
                                 Buffers: shared hit=11 read=41408
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5696.65 rows=320853 width=0) (actual time=120.878..120.878 rows=321147 loops=1)
                                       Index Cond: (p_size = ANY ('{36,8,46,18,48,35,24,11}'::integer[]))
                                       Buffers: shared hit=9 read=892
 Total runtime: 42373.796 ms
(32 rows)

COMMIT;
COMMIT