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#35'
	and p_type not like 'STANDARD PLATED%'
	and p_size in (6, 46, 45, 27, 44, 24, 15, 50)
	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=416433.45..416502.91 rows=27785 width=40) (actual time=10823.052..10825.527 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=63790 read=148648 written=102
   ->  GroupAggregate  (cost=406695.56..414382.64 rows=27785 width=40) (actual time=9870.592..10771.562 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=63776 read=148648 written=102
         ->  Sort  (cost=406695.56..408177.41 rows=592738 width=40) (actual time=9870.508..10153.173 rows=1184469 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141689kB
               Buffers: shared hit=63776 read=148648 written=102
               ->  Hash Join  (cost=57975.39..349860.77 rows=592738 width=40) (actual time=998.550..6323.458 rows=1184469 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=63776 read=148648 written=102
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.409..3784.477 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=63764 read=107250 written=102
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.038..0.354 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54254.55..54254.55 rows=296369 width=40) (actual time=995.037..995.037 rows=296281 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25524kB
                           Buffers: shared hit=12 read=41398
                           ->  Bitmap Heap Scan on part  (cost=5736.38..54254.55 rows=296369 width=40) (actual time=76.577..864.806 rows=296281 loops=1)
                                 Recheck Cond: (p_size = ANY ('{6,46,45,27,44,24,15,50}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text))
                                 Rows Removed by Filter: 23148
                                 Heap Blocks: exact=40513
                                 Buffers: shared hit=12 read=41398
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5662.29 rows=319847 width=0) (actual time=66.941..66.941 rows=319429 loops=1)
                                       Index Cond: (p_size = ANY ('{6,46,45,27,44,24,15,50}'::integer[]))
                                       Buffers: shared hit=10 read=887
 Planning time: 4.440 ms
 Execution time: 10849.495 ms
(35 rows)

COMMIT;
COMMIT