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 'SMALL PLATED%'
	and p_size in (5, 24, 31, 33, 35, 36, 12, 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=416612.82..416682.42 rows=27843 width=40) (actual time=10760.713..10764.083 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=44295 read=168149 written=2012
   ->  GroupAggregate  (cost=406854.12..414557.30 rows=27843 width=40) (actual time=9907.708..10704.982 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=44281 read=168149 written=2012
         ->  Sort  (cost=406854.12..408339.07 rows=593980 width=40) (actual time=9907.609..10120.947 rows=1189082 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142050kB
               Buffers: shared hit=44281 read=168149 written=2012
               ->  Hash Join  (cost=57993.48..349891.28 rows=593980 width=40) (actual time=743.620..6754.767 rows=1189082 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=44281 read=168149 written=2012
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.444..4473.191 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=5390 read=165624 written=2012
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.052..0.387 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54264.88..54264.88 rows=296990 width=40) (actual time=740.310..740.310 rows=297441 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25651kB
                           Buffers: shared hit=38891 read=2525
                           ->  Bitmap Heap Scan on part  (cost=5738.88..54264.88 rows=296990 width=40) (actual time=85.693..622.302 rows=297441 loops=1)
                                 Recheck Cond: (p_size = ANY ('{5,24,31,33,35,36,12,50}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'SMALL PLATED%'::text))
                                 Rows Removed by Filter: 23137
                                 Heap Blocks: exact=40516
                                 Buffers: shared hit=38891 read=2525
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5664.63 rows=320160 width=0) (actual time=75.426..75.426 rows=320578 loops=1)
                                       Index Cond: (p_size = ANY ('{5,24,31,33,35,36,12,50}'::integer[]))
                                       Buffers: shared hit=9 read=891
 Planning time: 4.046 ms
 Execution time: 10783.529 ms
(35 rows)

COMMIT;
COMMIT