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#21'
	and p_type not like 'LARGE POLISHED%'
	and p_size in (10, 46, 12, 33, 13, 39, 34, 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=456619.46..456689.31 rows=27943 width=40) (actual time=43044.491..43047.629 rows=27837 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=205657 read=6787
   ->  GroupAggregate  (cost=446857.20..454555.84 rows=27943 width=40) (actual time=41726.135..42663.754 rows=27837 loops=1)
         Buffers: shared hit=205641 read=6787
         ->  Sort  (cost=446857.20..448341.04 rows=593537 width=40) (actual time=41726.037..42033.280 rows=1186196 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141824kB
               Buffers: shared hit=205641 read=6787
               ->  Hash Join  (cost=58046.66..389940.03 rows=593537 width=40) (actual time=1046.990..10941.450 rows=1186196 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=205641 read=6787
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=0.936..3782.261 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=168364 read=2651
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.058..0.869 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54312.51..54312.51 rows=298054 width=40) (actual time=1045.768..1045.768 rows=296708 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21478kB
                           Buffers: shared hit=37277 read=4136
                           ->  Bitmap Heap Scan on part  (cost=5770.68..54312.51 rows=298054 width=40) (actual time=149.448..836.320 rows=296708 loops=1)
                                 Recheck Cond: (p_size = ANY ('{10,46,12,33,13,39,34,25}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#21'::bpchar) AND ((p_type)::text !~~ 'LARGE POLISHED%'::text))
                                 Rows Removed by Filter: 23141
                                 Buffers: shared hit=37277 read=4136
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5696.17 rows=320793 width=0) (actual time=129.426..129.426 rows=319849 loops=1)
                                       Index Cond: (p_size = ANY ('{10,46,12,33,13,39,34,25}'::integer[]))
                                       Buffers: shared hit=12 read=887
 Total runtime: 43068.317 ms
(32 rows)

COMMIT;
COMMIT