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#25'
	and p_type not like 'STANDARD PLATED%'
	and p_size in (38, 32, 25, 28, 49, 11, 24, 46)
	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=416955.46..417025.31 rows=27943 width=40) (actual time=13297.603..13301.525 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=195420 read=17026
   ->  GroupAggregate  (cost=407160.98..414891.84 rows=27943 width=40) (actual time=12222.050..13239.729 rows=27840 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=195406 read=17026
         ->  Sort  (cost=407160.98..408651.27 rows=596114 width=40) (actual time=12221.923..12553.825 rows=1192316 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142302kB
               Buffers: shared hit=195406 read=17026
               ->  Hash Join  (cost=58058.93..349978.07 rows=596114 width=40) (actual time=1801.508..8262.284 rows=1192316 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=195406 read=17026
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.327..4134.449 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=165314 read=5700
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.019..0.252 rows=56 loops=1)
                                   Buffers: shared hit=56
                     ->  Hash  (cost=54316.99..54316.99 rows=298057 width=40) (actual time=1798.349..1798.349 rows=298231 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25668kB
                           Buffers: shared hit=30092 read=11326
                           ->  Bitmap Heap Scan on part  (cost=5772.66..54316.99 rows=298057 width=40) (actual time=169.044..1572.387 rows=298231 loops=1)
                                 Recheck Cond: (p_size = ANY ('{38,32,25,28,49,11,24,46}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#25'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text))
                                 Rows Removed by Filter: 22745
                                 Heap Blocks: exact=40517
                                 Buffers: shared hit=30092 read=11326
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5698.15 rows=320893 width=0) (actual time=143.557..143.557 rows=320976 loops=1)
                                       Index Cond: (p_size = ANY ('{38,32,25,28,49,11,24,46}'::integer[]))
                                       Buffers: shared hit=238 read=663
 Planning time: 4.180 ms
 Execution time: 13311.954 ms
(35 rows)

COMMIT;
COMMIT