如何解决Postgresql中的“列引用X不明确”错误？？

Question

我正在尝试联接数据库中的某些表，但是发现错误。

我使用的是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;

我希望数据中仅包含basic_account和customer_pedal中的客户ID。

这是结构表