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 'LARGE PLATED%'
	and p_size in (29, 3, 13, 17, 11, 4, 26, 30)
	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=456275.53..456344.89 rows=27744 width=40) (actual time=47367.373..47371.180 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=149305 read=63140 written=15
   ->  GroupAggregate  (cost=446552.30..454228.04 rows=27744 width=40) (actual time=45969.635..47008.783 rows=27839 loops=1)
         Buffers: shared hit=149289 read=63140 written=15
         ->  Sort  (cost=446552.30..448031.96 rows=591864 width=40) (actual time=45969.534..46285.488 rows=1188137 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141976kB
               Buffers: shared hit=149289 read=63140 written=15
               ->  Hash Join  (cost=57930.97..389807.61 rows=591864 width=40) (actual time=1390.827..13861.741 rows=1188137 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=149289 read=63140 written=15
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=1.403..6222.305 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=108766 read=62249 written=15
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.111..1.280 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54223.34..54223.34 rows=295932 width=40) (actual time=1389.172..1389.172 rows=297200 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21536kB
                           Buffers: shared hit=40523 read=891
                           ->  Bitmap Heap Scan on part  (cost=5728.17..54223.34 rows=295932 width=40) (actual time=168.475..1173.618 rows=297200 loops=1)
                                 Recheck Cond: (p_size = ANY ('{29,3,13,17,11,4,26,30}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#12'::bpchar) AND ((p_type)::text !~~ 'LARGE PLATED%'::text))
                                 Rows Removed by Filter: 22797
                                 Buffers: shared hit=40523 read=891
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5654.19 rows=318927 width=0) (actual time=148.417..148.417 rows=319997 loops=1)
                                       Index Cond: (p_size = ANY ('{29,3,13,17,11,4,26,30}'::integer[]))
                                       Buffers: shared hit=9 read=891
 Total runtime: 47391.519 ms
(32 rows)

COMMIT;
COMMIT