Link do banco de dados Oracle - conecte-se ao proxy com caracteres especiais no nome de usuário

CREATE USER "AUSER" IDENTIFIED BY "a";
CREATE USER bar IDENTIFIED BY "random-trash";
ALTER USER bar GRANT CONNECT THROUGH "AUSER";
GRANT CREATE SESSION TO "AUSER";
GRANT CREATE SESSION TO "BAR";

CREATE PUBLIC DATABASE LINK dbl CONNECT TO "AUSER[BAR]" IDENTIFIED BY "a" using 'MYDB';
SELECT * FROM [email protected];

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X

CREATE USER "A-USER" IDENTIFIED BY "a";
CREATE USER foo IDENTIFIED BY "random-trash";
ALTER USER foo GRANT CONNECT THROUGH "A-USER";
GRANT CREATE SESSION TO "A-USER";
GRANT CREATE SESSION TO "FOO";

DROP PUBLIC DATABASE LINK dbl;
CREATE PUBLIC DATABASE LINK dbl CONNECT TO "A-USER[FOO]" IDENTIFIED BY "a" using 'MYDB';
SELECT * FROM [email protected];

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X

select * from [email protected]
                   *
ERROR at line 1:
ORA-01017: invalid username/password; logon denied
ORA-02063: preceding line from DBL