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#14'
	and p_type not like 'STANDARD BURNISHED%'
	and p_size in (3, 42, 4, 33, 14, 16, 47, 32)
	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=456943.55..457013.60 rows=28019 width=40) (actual time=48822.043..48826.737 rows=27839 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2943kB
   Buffers: shared hit=29728 read=182719 written=12
   ->  GroupAggregate  (cost=447147.99..454873.77 rows=28019 width=40) (actual time=47560.257..48480.153 rows=27839 loops=1)
         Buffers: shared hit=29712 read=182719 written=12
         ->  Sort  (cost=447147.99..448637.11 rows=595647 width=40) (actual time=47560.153..47847.414 rows=1190018 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142123kB
               Buffers: shared hit=29712 read=182719 written=12
               ->  Hash Join  (cost=58098.77..390013.24 rows=595647 width=40) (actual time=1348.614..15521.549 rows=1190018 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=29712 read=182719 written=12
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.832..6566.687 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=16817 read=154198 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=0.076..0.770 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54354.54..54354.54 rows=298860 width=40) (actual time=1346.961..1346.961 rows=297676 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21507kB
                           Buffers: shared hit=12895 read=28521
                           ->  Bitmap Heap Scan on part  (cost=5780.54..54354.54 rows=298860 width=40) (actual time=88.633..1130.160 rows=297676 loops=1)
                                 Recheck Cond: (p_size = ANY ('{3,42,4,33,14,16,47,32}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#14'::bpchar) AND ((p_type)::text !~~ 'STANDARD BURNISHED%'::text))
                                 Rows Removed by Filter: 23070
                                 Buffers: shared hit=12895 read=28521
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5705.83 rows=322080 width=0) (actual time=77.597..77.597 rows=320746 loops=1)
                                       Index Cond: (p_size = ANY ('{3,42,4,33,14,16,47,32}'::integer[]))
                                       Buffers: shared hit=9 read=893
 Total runtime: 48849.811 ms
(32 rows)

COMMIT;
COMMIT