两次关联相同表， setlectFunc concat(%s, %s) ，如何设置相同表的别名

MPJLambdaWrapper<Transfer> transferWrapper = new MPJLambdaWrapper<Transfer>()
                .selectFunc("concat(%s, %s)", arg -> arg.accept(Account::getAccountName, Account::getAccountName), Trade::getAccountName)
                .leftJoin(Account.class, "af", Account::getId, Transfer::getAccountFromId)
                .leftJoin(Account.class, "at", Account::getId, Transfer::getAccountToId)

对应sql

SELECT concat(af.account_name, af.account_name) AS accountName FROM transfer t LEFT JOIN account af ON (af.id = t.account_from_id) LEFT JOIN account at ON (at.id = t.account_to_id);

请问如何做到这种效果， concat(at,account_name, af.account_name)

SELECT concat(af.account_name, at.account_name) AS accountName FROM transfer t LEFT JOIN account af ON (af.id = t.account_from_id) LEFT JOIN account at ON (at.id = t.account_to_id);

yulichang / mybatis-plus-join

两次关联相同表， setlectFunc concat(%s, %s) ，如何设置相同表的别名 #55