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#12'
	and p_type not like 'STANDARD PLATED%'
	and p_size in (31, 18, 21, 47, 1, 4, 38, 19)
	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=455453.04..455522.08 rows=27614 width=40) (actual time=58603.308..58605.346 rows=27838 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=47728 read=164714 written=6281
   ->  GroupAggregate  (cost=445813.29..453416.08 rows=27614 width=40) (actual time=57269.997..58211.762 rows=27838 loops=1)
         Buffers: shared hit=47712 read=164714 written=6281
         ->  Sort  (cost=445813.29..447278.62 rows=586132 width=40) (actual time=57269.886..57552.920 rows=1185240 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141749kB
               Buffers: shared hit=47712 read=164714 written=6281
               ->  Hash Join  (cost=57839.99..389659.31 rows=586132 width=40) (actual time=3635.268..24252.017 rows=1185240 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=47712 read=164714 written=6281
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=3.654..11946.186 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=47701 read=123314 written=6281
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.143..3.542 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54149.71..54149.71 rows=294544 width=40) (actual time=3631.262..3631.262 rows=296479 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21446kB
                           Buffers: shared hit=11 read=41400
                           ->  Bitmap Heap Scan on part  (cost=5689.38..54149.71 rows=294544 width=40) (actual time=244.089..3354.178 rows=296479 loops=1)
                                 Recheck Cond: (p_size = ANY ('{31,18,21,47,1,4,38,19}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#12'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text))
                                 Rows Removed by Filter: 23214
                                 Buffers: shared hit=11 read=41400
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5615.75 rows=317533 width=0) (actual time=223.182..223.182 rows=319693 loops=1)
                                       Index Cond: (p_size = ANY ('{31,18,21,47,1,4,38,19}'::integer[]))
                                       Buffers: shared hit=9 read=890
 Total runtime: 58631.441 ms
(32 rows)

COMMIT;
COMMIT