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#45'
	and p_type not like 'ECONOMY POLISHED%'
	and p_size in (11, 36, 42, 12, 14, 15, 8, 22)
	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=456526.77..456596.34 rows=27828 width=40) (actual time=44465.179..44469.008 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=191617 read=20826
   ->  GroupAggregate  (cost=446775.56..454472.47 rows=27828 width=40) (actual time=43212.385..44088.773 rows=27839 loops=1)
         Buffers: shared hit=191601 read=20826
         ->  Sort  (cost=446775.56..448259.29 rows=593490 width=40) (actual time=43212.257..43479.170 rows=1186144 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141820kB
               Buffers: shared hit=191601 read=20826
               ->  Hash Join  (cost=57970.34..389863.24 rows=593490 width=40) (actual time=1138.639..12261.043 rows=1186144 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=191601 read=20826
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=5.038..4619.709 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=157426 read=13589
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.086..4.929 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54251.49..54251.49 rows=296830 width=40) (actual time=1133.300..1133.300 rows=296695 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21462kB
                           Buffers: shared hit=34175 read=7237
                           ->  Bitmap Heap Scan on part  (cost=5734.81..54251.49 rows=296830 width=40) (actual time=135.337..919.459 rows=296695 loops=1)
                                 Recheck Cond: (p_size = ANY ('{11,36,42,12,14,15,8,22}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#45'::bpchar) AND ((p_type)::text !~~ 'ECONOMY POLISHED%'::text))
                                 Rows Removed by Filter: 23018
                                 Buffers: shared hit=34175 read=7237
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5660.61 rows=319787 width=0) (actual time=119.758..119.758 rows=319713 loops=1)
                                       Index Cond: (p_size = ANY ('{11,36,42,12,14,15,8,22}'::integer[]))
                                       Buffers: shared hit=11 read=889
 Total runtime: 44491.799 ms
(32 rows)

COMMIT;
COMMIT