Calling a private package routine by its 3-step name does not fail

SET sql_mode=ORACLE;

CREATE OR REPLACE DATABASE db1;

DELIMITER $$

CREATE OR REPLACE PACKAGE db1.pkg AS

  PROCEDURE p1;

END;

$$

CREATE PACKAGE BODY db1.pkg AS

  PROCEDURE p0 AS BEGIN SELECT 5; END;

  PROCEDURE p1 AS BEGIN CALL p0(); END;

END;

$$

DELIMITER ;

USE db1;

CALL pkg.p0() /* This fails, correct */;

ERROR 1305 (42000): PROCEDURE pkg.p0 does not exist

CALL db1.pkg.p0() /* This succeeds, wrong */;

+---+

| 5 |

+---+

| 5 |

+---+