Как исправить ошибку «Ссылка на столбец X неоднозначна» в postgresql ..?

Question

Я пытаюсь объединить некоторые таблицы в своей базе данных, но обнаружил ошибку ..

Я использую Postgresql-9.6

SELECT
    customer_id
  , (select identity_card_number from basic_customer bc where bc.customer_id = ba.customer_id ) as identitu_card_number
  , (select fullname from customer_pedal cp where cp.customer_id = ba.customer_id ) as fullname
  , customer_id
  , category_code
  , (select is_cif_active_desc from basic_customer bc where bc.customer_id = ba.customer_id ) as is_active
  , ba.account_number
  , opening_date
  , closure_date
  , currency_code
  , (SELECT balance_date FROM basic_balance bb where bb.account_number = ba.account_number )  as balance_date
  , (SELECT balance_amount FROM basic_balance bb where bb.account_number = ba.account_number )  as balance_amount
  , (select description from customer_pedal cp where cp.customer_id = ba.customer_id ) as description
FROM basic_account ba
INNER JOIN customer_pedal cp on cp.customer_id = ba.customer_id
WHERE ba.customer_id is not  null;

Я ожидал, что данные, содержащие только идентификатор клиента изbasic_account и customer_pedal.

Вот таблицы структуры