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 'PROMO PLATED%'
	and p_size in (43, 29, 50, 44, 23, 37, 21, 20)
	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=456287.37..456356.94 rows=27828 width=40) (actual time=47382.896..47384.654 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=173279 read=39169 written=5
   ->  GroupAggregate  (cost=446559.88..454233.07 rows=27828 width=40) (actual time=46017.781..47015.348 rows=27840 loops=1)
         Buffers: shared hit=173263 read=39169 written=5
         ->  Sort  (cost=446559.88..448038.86 rows=591593 width=40) (actual time=46017.669..46341.402 rows=1184933 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141725kB
               Buffers: shared hit=173263 read=39169 written=5
               ->  Hash Join  (cost=57969.20..389843.13 rows=591593 width=40) (actual time=1307.079..14409.509 rows=1184933 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=173263 read=39169 written=5
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.287..6068.250 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=138070 read=32945 written=5
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.063..1.198 rows=56 loops=1)
                                   Buffers: shared hit=57
                     ->  Hash  (cost=54250.40..54250.40 rows=296826 width=40) (actual time=1305.455..1305.455 rows=296396 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21481kB
                           Buffers: shared hit=35193 read=6224
                           ->  Bitmap Heap Scan on part  (cost=5734.57..54250.40 rows=296826 width=40) (actual time=172.233..1079.862 rows=296396 loops=1)
                                 Recheck Cond: (p_size = ANY ('{43,29,50,44,23,37,21,20}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#54'::bpchar) AND ((p_type)::text !~~ 'PROMO PLATED%'::text))
                                 Rows Removed by Filter: 23215
                                 Buffers: shared hit=35193 read=6224
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5660.37 rows=319753 width=0) (actual time=144.571..144.571 rows=319611 loops=1)
                                       Index Cond: (p_size = ANY ('{43,29,50,44,23,37,21,20}'::integer[]))
                                       Buffers: shared hit=123 read=776
 Total runtime: 47404.728 ms
(32 rows)

COMMIT;
COMMIT