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#44'
	and p_type not like 'MEDIUM POLISHED%'
	and p_size in (7, 13, 37, 14, 10, 9, 26, 36)
	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=456887.81..456957.82 rows=28002 width=40) (actual time=46391.067..46395.438 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=171264 read=41185
   ->  GroupAggregate  (cost=447098.34..454819.41 rows=28002 width=40) (actual time=45140.097..46000.643 rows=27839 loops=1)
         Buffers: shared hit=171248 read=41185
         ->  Sort  (cost=447098.34..448586.55 rows=595284 width=40) (actual time=45139.993..45396.250 rows=1186116 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141818kB
               Buffers: shared hit=171248 read=41185
               ->  Hash Join  (cost=58090.19..390001.03 rows=595284 width=40) (actual time=1547.030..13428.016 rows=1186116 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=171248 read=41185
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.184..5269.992 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=157596 read=13419
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.244..1.097 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54348.23..54348.23 rows=298678 width=40) (actual time=1545.411..1545.411 rows=296688 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21461kB
                           Buffers: shared hit=13652 read=27766
                           ->  Bitmap Heap Scan on part  (cost=5779.06..54348.23 rows=298678 width=40) (actual time=123.299..1293.622 rows=296688 loops=1)
                                 Recheck Cond: (p_size = ANY ('{7,13,37,14,10,9,26,36}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#44'::bpchar) AND ((p_type)::text !~~ 'MEDIUM POLISHED%'::text))
                                 Rows Removed by Filter: 23345
                                 Buffers: shared hit=13652 read=27766
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5704.39 rows=321887 width=0) (actual time=107.830..107.830 rows=320033 loops=1)
                                       Index Cond: (p_size = ANY ('{7,13,37,14,10,9,26,36}'::integer[]))
                                       Buffers: shared hit=345 read=555
 Total runtime: 46411.249 ms
(32 rows)

COMMIT;
COMMIT