Optimize OneToMany and ManyToMany without join

 
/**
 * @Entity
 * @Table(name="users")
 */
class User {

    /**
     * @Column
     * @Id
     */
    public $user_id;

    /**
     * @Column
     */
    public $email;

    /**
     * @OneToMany(targetEntity="Language", mappedBy="user",fetch="EAGER")
     */
    public $languages;

}

/**
 * @Entity
 * @Table(name="user_languages")
 */
class Language {

    /**
     * @Column
     * @Id
     */
    public $user_language_id;

    /**
     * @ManyToOne(targetEntity="User", inversedBy="languages")
     * @JoinColumn(name="user_id", referencedColumnName="user_id")
     */
    public $user;

    /**
     * @Column
     */
    public $user_id;
}

$users = $em->getRepository('User')->findAll();

SELECT t0.user_id AS user_id1, t0.email AS email2 FROM users t0
SELECT t0.user_language_id AS user_language_id1, t0.user_id AS user_id2, t0.user_id AS user_id3 FROM user_languages t0 WHERE t0.user_id = ?
array(1) {
  [0]=>
  string(1) "1"
}
array(1) {
  [0]=>
  NULL
}
SELECT t0.user_language_id AS user_language_id1, t0.user_id AS user_id2, t0.user_id AS user_id3 FROM user_languages t0 WHERE t0.user_id = ?
array(1) {
  [0]=>
  string(1) "2"
}
array(1) {
  [0]=>
  NULL
}
SELECT t0.user_language_id AS user_language_id1, t0.user_id AS user_id2, t0.user_id AS user_id3 FROM user_languages t0 WHERE t0.user_id = ?
array(1) {
  [0]=>
  string(1) "3"
}
array(1) {
  [0]=>
  NULL
}

...

SELECT t0.user_id AS user_id1, t0.email AS email2 FROM users t0
SELECT u0_.user_language_id AS user_language_id0, u0_.user_id AS user_id1, u0_.user_id AS user_id2 FROM user_languages u0_ WHERE u0_.user_id IN (1, 2, 3)