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#13'
	and p_type not like 'SMALL BURNISHED%'
	and p_size in (19, 3, 25, 21, 18, 24, 40, 34)
	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=456413.46..456482.94 rows=27789 width=40) (actual time=47923.744..47927.340 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=112727 read=99717 written=7734
   ->  GroupAggregate  (cost=446674.11..454362.33 rows=27789 width=40) (actual time=46635.419..47566.257 rows=27839 loops=1)
         Buffers: shared hit=112711 read=99717 written=7734
         ->  Sort  (cost=446674.11..448156.18 rows=592826 width=40) (actual time=46635.290..46928.335 rows=1185466 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141767kB
               Buffers: shared hit=112711 read=99717 written=7734
               ->  Hash Join  (cost=57943.99..389830.25 rows=592826 width=40) (actual time=1220.715..14837.601 rows=1185466 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=112711 read=99717 written=7734
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.509..6643.865 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=72194 read=98821 written=7734
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.108..1.393 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54230.35..54230.35 rows=296413 width=40) (actual time=1218.874..1218.874 rows=296537 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21450kB
                           Buffers: shared hit=40517 read=896
                           ->  Bitmap Heap Scan on part  (cost=5729.85..54230.35 rows=296413 width=40) (actual time=177.933..1008.091 rows=296537 loops=1)
                                 Recheck Cond: (p_size = ANY ('{19,3,25,21,18,24,40,34}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#13'::bpchar) AND ((p_type)::text !~~ 'SMALL BURNISHED%'::text))
                                 Rows Removed by Filter: 23148
                                 Buffers: shared hit=40517 read=896
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5655.75 rows=319140 width=0) (actual time=155.312..155.312 rows=319685 loops=1)
                                       Index Cond: (p_size = ANY ('{19,3,25,21,18,24,40,34}'::integer[]))
                                       Buffers: shared hit=11 read=888
 Total runtime: 47949.680 ms
(32 rows)

COMMIT;
COMMIT