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#34'
	and p_type not like 'LARGE BRUSHED%'
	and p_size in (36, 11, 37, 44, 18, 34, 13, 25)
	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=455724.73..455793.99 rows=27702 width=40) (actual time=45643.657..45645.695 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=40594 read=171849 written=266
   ->  GroupAggregate  (cost=446057.71..453680.64 rows=27702 width=40) (actual time=44338.479..45271.404 rows=27839 loops=1)
         Buffers: shared hit=40578 read=171849 written=266
         ->  Sort  (cost=446057.71..447526.89 rows=587673 width=40) (actual time=44338.347..44645.009 rows=1185928 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141803kB
               Buffers: shared hit=40578 read=171849 written=266
               ->  Hash Join  (cost=57910.23..389744.96 rows=587673 width=40) (actual time=786.373..12955.560 rows=1185928 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=40578 read=171849 written=266
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.984..5123.356 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=56 read=170959 written=266
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.101..0.931 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54208.25..54208.25 rows=295480 width=40) (actual time=785.167..785.167 rows=296642 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21489kB
                           Buffers: shared hit=40522 read=890
                           ->  Bitmap Heap Scan on part  (cost=5724.58..54208.25 rows=295480 width=40) (actual time=83.577..621.869 rows=296642 loops=1)
                                 Recheck Cond: (p_size = ANY ('{36,11,37,44,18,34,13,25}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#34'::bpchar) AND ((p_type)::text !~~ 'LARGE BRUSHED%'::text))
                                 Rows Removed by Filter: 23076
                                 Buffers: shared hit=40522 read=890
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5650.71 rows=318467 width=0) (actual time=72.939..72.939 rows=319718 loops=1)
                                       Index Cond: (p_size = ANY ('{36,11,37,44,18,34,13,25}'::integer[]))
                                       Buffers: shared hit=9 read=890
 Total runtime: 45677.475 ms
(32 rows)

COMMIT;
COMMIT