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
				('27', '14', '29', '30', '26', '12', '28')
			and c_acctbal > (
				select
					avg(c_acctbal)
				from
					customer
				where
					c_acctbal > 0.00
					and substring(c_phone from 1 for 2) in
						('27', '14', '29', '30', '26', '12', '28')
			)
			and not exists (
				select
					*
				from
					orders
				where
					o_custkey = c_custkey
			)
	) as vip
group by
	cntrycode
order by
	cntrycode;
NOTICE:  duration: 437.040 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
				('27', '14', '29', '30', '26', '12', '28')
			and c_acctbal > (
				select
					avg(c_acctbal)
				from
					customer
				where
					c_acctbal > 0.00
					and substring(c_phone from 1 for 2) in
						('27', '14', '29', '30', '26', '12', '28')
			)
			and not exists (
				select
					*
				from
					orders
				where
					o_custkey = c_custkey
			)
	) as vip
group by
	cntrycode
order by
	cntrycode;
Finalize GroupAggregate  (cost=122531.68..122538.45 rows=25 width=72) (actual time=430.274..437.028 rows=7 loops=1)
  Group Key: (SUBSTRING(customer.c_phone FROM 1 FOR 2))
  InitPlan 1 (returns $1)
    ->  Finalize Aggregate  (cost=50276.32..50276.33 rows=1 width=32) (actual time=150.595..151.939 rows=1 loops=1)
          ->  Gather  (cost=50276.10..50276.31 rows=2 width=32) (actual time=150.324..151.928 rows=3 loops=1)
                Workers Planned: 2
                Workers Launched: 2
                ->  Partial Aggregate  (cost=49276.10..49276.11 rows=1 width=32) (actual time=147.551..147.552 rows=1 loops=3)
                      ->  Parallel Bitmap Heap Scan on customer customer_1  (cost=8765.30..48872.20 rows=161558 width=6) (actual time=50.477..132.310 rows=127038 loops=3)
                            Recheck Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{27,14,29,30,26,12,28}'::text[])) AND (c_acctbal > 0.00))
                            Heap Blocks: exact=12175
                            ->  Bitmap Index Scan on customer_c_phone_c_acctbal_c_custkey_idx  (cost=0.00..8668.36 rows=387740 width=0) (actual time=46.951..46.952 rows=381115 loops=1)
                                  Index Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{27,14,29,30,26,12,28}'::text[])) AND (c_acctbal > 0.00))
  ->  Gather Merge  (cost=72255.35..72261.18 rows=50 width=72) (actual time=430.263..435.661 rows=21 loops=1)
        Workers Planned: 2
        Params Evaluated: $1
        Workers Launched: 2
        ->  Sort  (cost=71255.32..71255.39 rows=25 width=72) (actual time=276.129..276.131 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=71254.31..71254.74 rows=25 width=72) (actual time=276.089..276.093 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=3365.98..71064.40 rows=25321 width=38) (actual time=32.275..269.386 rows=21224 loops=3)
                          ->  Parallel Bitmap Heap Scan on customer  (cost=3365.54..40792.19 rows=59453 width=26) (actual time=32.220..105.064 rows=63525 loops=3)
                                Recheck Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{27,14,29,30,26,12,28}'::text[])) AND (c_acctbal > $1))
                                Heap Blocks: exact=12368
                                ->  Bitmap Index Scan on customer_c_phone_c_acctbal_c_custkey_idx  (cost=0.00..3329.87 rows=142688 width=0) (actual time=28.724..28.724 rows=190576 loops=1)
                                      Index Cond: ((SUBSTRING(c_phone FROM 1 FOR 2) = ANY ('{27,14,29,30,26,12,28}'::text[])) AND (c_acctbal > $1))
                          ->  Index Only Scan using orders_o_custkey_idx on orders  (cost=0.43..1.14 rows=17 width=4) (actual time=0.002..0.002 rows=1 loops=190576)
                                Index Cond: (o_custkey = customer.c_custkey)
                                Heap Fetches: 7
 cntrycode | numcust | totacctbal  
-----------+---------+-------------
 12        |    9050 | 67863719.22
 14        |    9014 | 67806653.74
 26        |    9019 | 67735004.20
 27        |    9016 | 67650907.79
 28        |    9027 | 67660096.94
 29        |    9202 | 69030431.09
 30        |    9344 | 70123835.79
(7 rows)

COMMIT;
COMMIT