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#24'
	and p_type not like 'SMALL POLISHED%'
	and p_size in (20, 11, 24, 8, 44, 6, 12, 34)
	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=456724.39..456794.10 rows=27884 width=40) (actual time=44115.687..44117.455 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=16897 read=195549
   ->  GroupAggregate  (cost=446951.22..454665.56 rows=27884 width=40) (actual time=42851.859..43768.670 rows=27838 loops=1)
         Buffers: shared hit=16881 read=195549
         ->  Sort  (cost=446951.22..448438.32 rows=594840 width=40) (actual time=42851.763..43149.391 rows=1189191 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142058kB
               Buffers: shared hit=16881 read=195549
               ->  Hash Join  (cost=57993.29..389899.69 rows=594840 width=40) (actual time=1177.544..12799.571 rows=1189191 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=16881 read=195549
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.008..4904.623 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=16870 read=154145
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.087..0.947 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54267.06..54267.06 rows=297420 width=40) (actual time=1176.279..1176.279 rows=297460 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21533kB
                           Buffers: shared hit=11 read=41404
                           ->  Bitmap Heap Scan on part  (cost=5738.56..54267.06 rows=297420 width=40) (actual time=88.567..984.214 rows=297460 loops=1)
                                 Recheck Cond: (p_size = ANY ('{20,11,24,8,44,6,12,34}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'SMALL POLISHED%'::text))
                                 Rows Removed by Filter: 22613
                                 Buffers: shared hit=11 read=41404
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5664.21 rows=320260 width=0) (actual time=77.825..77.825 rows=320073 loops=1)
                                       Index Cond: (p_size = ANY ('{20,11,24,8,44,6,12,34}'::integer[]))
                                       Buffers: shared hit=8 read=893
 Total runtime: 44146.197 ms
(32 rows)

COMMIT;
COMMIT