如何合并两个带不同ON CONFLICT子句的PostgreSQL INSERT语句？

INSERT INTO users_list
  (
    account_id,
    name,
    email,
    workspace_id,
    user_state,
    outside_organisation,
    company_user_id,
    service_name
  )
  SELECT
    service_data.account_id,
    new_user_name,
    sent_to,
    workspace_id_value,
    service_data.user_state,
    outside_organisation_value,
    company_user_id_value,
    service_data.service_name
  FROM unnest(email_mapping) AS service_data
  ON CONFLICT (service_name, email) DO UPDATE SET
    account_id = EXCLUDED.account_id,
    user_state = EXCLUDED.user_state;

  INSERT INTO users_list
  (
    account_id,
    name,
    email,
    workspace_id,
    user_state,
    outside_organisation,
    company_user_id,
    service_name
  )
  SELECT
    service_data.account_id,
    new_user_name,
    sent_to,
    workspace_id_value,
    service_data.user_state,
    outside_organisation_value,
    company_user_id_value,
    service_data.service_name
  FROM unnest(name_mapping) AS service_data
  ON CONFLICT (account_id, service_name) DO UPDATE SET
    user_state = EXCLUDED.user_state;
END;

请问是否可以简化这段代码，使其更简洁美观？

补充说明 #

映射表结构 #

email_mapping和name_mapping均为数据表，结构如下：

其中email_mapping的mapping字段值为email，name_mapping的mapping字段值为name。

函数与目标表说明 #

这是一个PostgreSQL函数，数据通过函数参数传入。

users_list表结构如下：

内容的提问来源于stack exchange，提问作者Alwaysblue