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#22'
	and p_type not like 'PROMO BURNISHED%'
	and p_size in (43, 41, 18, 42, 39, 37, 17, 11)
	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=416276.80..416346.24 rows=27778 width=40) (actual time=9228.714..9230.796 rows=27840 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2968kB
   Buffers: shared hit=75 read=212366 written=8
   ->  GroupAggregate  (cost=406553.10..414226.55 rows=27778 width=40) (actual time=8482.192..9180.672 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=61 read=212366 written=8
         ->  Sort  (cost=406553.10..408032.23 rows=591654 width=40) (actual time=8482.107..8617.676 rows=1187251 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141906kB
               Buffers: shared hit=61 read=212366 written=8
               ->  Hash Join  (cost=57955.52..349830.06 rows=591654 width=40) (actual time=944.760..6037.596 rows=1187251 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=61 read=212366 written=8
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=1.160..3726.551 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=2 read=171012
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.044..1.097 rows=56 loops=1)
                                   Buffers: shared read=56
                     ->  Hash  (cost=54235.66..54235.66 rows=296291 width=40) (actual time=940.953..940.953 rows=296981 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25579kB
                           Buffers: shared hit=59 read=41354 written=8
                           ->  Bitmap Heap Scan on part  (cost=5731.98..54235.66 rows=296291 width=40) (actual time=70.488..818.318 rows=296981 loops=1)
                                 Recheck Cond: (p_size = ANY ('{43,41,18,42,39,37,17,11}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#22'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text))
                                 Rows Removed by Filter: 23007
                                 Heap Blocks: exact=40515
                                 Buffers: shared hit=59 read=41354 written=8
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5657.91 rows=319267 width=0) (actual time=60.697..60.697 rows=319988 loops=1)
                                       Index Cond: (p_size = ANY ('{43,41,18,42,39,37,17,11}'::integer[]))
                                       Buffers: shared hit=12 read=886
 Planning time: 5.374 ms
 Execution time: 9242.888 ms
(35 rows)

COMMIT;
COMMIT