load 'auto_explain';
LOAD
set auto_explain.log_min_duration to 0;
SET
set auto_explain.log_analyze to on;
SET
set auto_explain.log_wal to on;
SET
set auto_explain.log_timing to on;
SET
set auto_explain.log_level to notice;
SET
BEGIN;
BEGIN
select
	cntrycode,
	count(*) as numcust,
	sum(c_acctbal) as totacctbal
from
	(
		select
			substring(c_phone from 1 for 2) as cntrycode,
			c_acctbal
		from
			customer
		where
			substring(c_phone from 1 for 2) in
				('31', '11', '22', '10', '30', '15', '25')
			and c_acctbal > (
				select
					avg(c_acctbal)
				from
					customer
				where
					c_acctbal > 0.00
					and substring(c_phone from 1 for 2) in
						('31', '11', '22', '10', '30', '15', '25')
			)
			and not exists (
				select
					*
				from
					orders
				where
					o_custkey = c_custkey
			)
	) as vip
group by
	cntrycode
order by
	cntrycode;
NOTICE:  duration: 1239.962 ms  plan:
Query Text: select
	cntrycode,
	count(*) as numcust,
	sum(c_acctbal) as totacctbal
from
	(
		select
			substring(c_phone from 1 for 2) as cntrycode,
			c_acctbal
		from
			customer
		where
			substring(c_phone from 1 for 2) in
				('31', '11', '22', '10', '30', '15', '25')
			and c_acctbal > (
				select
					avg(c_acctbal)
				from
					customer
				where
					c_acctbal > 0.00
					and substring(c_phone from 1 for 2) in
						('31', '11', '22', '10', '30', '15', '25')
			)
			and not exists (
				select
					*
				from
					orders
				where
					o_custkey = c_custkey
			)
	) as vip
group by
	cntrycode
order by
	cntrycode;
Finalize GroupAggregate  (cost=122015.65..122022.43 rows=25 width=72) (actual time=1229.598..1239.942 rows=7 loops=1)
  Group Key: (SUBSTRING(customer.c_phone FROM 1 FOR 2))
  InitPlan 1 (returns $1)
    ->  Finalize Aggregate  (cost=50111.54..50111.55 rows=1 width=32) (actual time=466.389..468.434 rows=1 loops=1)
          ->  Gather  (cost=50111.32..50111.53 rows=2 width=32) (actual time=458.865..468.409 rows=3 loops=1)
                Workers Planned: 2
                Workers Launched: 2
                ->  Partial Aggregate  (cost=49111.32..49111.33 rows=1 width=32) (actual time=451.333..451.334 rows=1 loops=3)
                      ->  Parallel Bitmap Heap Scan on customer customer_1  (cost=8665.62..48713.08 rows=159294 width=6) (actual time=106.925..392.696 rows=127114 loops=3)
                            Recheck Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{31,11,22,10,30,15,25}'::text[])) AND (c_acctbal > 0.00))
                            Heap Blocks: exact=15700
                            ->  Bitmap Index Scan on customer_c_phone_c_acctbal_c_custkey_idx  (cost=0.00..8570.04 rows=382305 width=0) (actual time=103.403..103.404 rows=381341 loops=1)
                                  Index Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{31,11,22,10,30,15,25}'::text[])) AND (c_acctbal > 0.00))
  ->  Gather Merge  (cost=71904.10..71909.94 rows=50 width=72) (actual time=1229.576..1237.853 rows=21 loops=1)
        Workers Planned: 2
        Params Evaluated: $1
        Workers Launched: 2
        ->  Sort  (cost=70904.08..70904.14 rows=25 width=72) (actual time=740.776..740.779 rows=7 loops=3)
              Sort Key: (SUBSTRING(customer.c_phone FROM 1 FOR 2))
              Sort Method: quicksort  Memory: 25kB
              Worker 0:  Sort Method: quicksort  Memory: 25kB
              Worker 1:  Sort Method: quicksort  Memory: 25kB
              ->  Partial HashAggregate  (cost=70903.06..70903.50 rows=25 width=72) (actual time=740.695..740.703 rows=7 loops=3)
                    Group Key: SUBSTRING(customer.c_phone FROM 1 FOR 2)
                    Batches: 1  Memory Usage: 24kB
                    Worker 0:  Batches: 1  Memory Usage: 24kB
                    Worker 1:  Batches: 1  Memory Usage: 24kB
                    ->  Nested Loop Anti Join  (cost=3321.46..70715.82 rows=24966 width=38) (actual time=65.654..726.324 rows=21202 loops=3)
                          ->  Parallel Bitmap Heap Scan on customer  (cost=3321.02..40725.80 rows=58620 width=26) (actual time=64.015..206.134 rows=63554 loops=3)
                                Recheck Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{31,11,22,10,30,15,25}'::text[])) AND (c_acctbal > $1))
                                Heap Blocks: exact=12860
                                ->  Bitmap Index Scan on customer_c_phone_c_acctbal_c_custkey_idx  (cost=0.00..3285.85 rows=140688 width=0) (actual time=67.383..67.383 rows=190661 loops=1)
                                      Index Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{31,11,22,10,30,15,25}'::text[])) AND (c_acctbal > $1))
                          ->  Index Only Scan using orders_o_custkey_idx on orders  (cost=0.43..1.17 rows=17 width=4) (actual time=0.007..0.007 rows=1 loops=190661)
                                Index Cond: (o_custkey = customer.c_custkey)
                                Heap Fetches: 7099
 cntrycode | numcust | totacctbal  
-----------+---------+-------------
 10        |    9053 | 67752399.56
 11        |    9007 | 67899527.62
 15        |    9036 | 67837467.01
 22        |    8991 | 67276842.61
 25        |    9106 | 68335809.72
 30        |    9336 | 70083836.84
 31        |    9076 | 68094522.06
(7 rows)

COMMIT;
COMMIT