Hello every body, sorry for my bad english.

I create views "webform_views_postuler_526" in my database.

In "structure" > "data table" i update my view webform 526.

I wish join my fields "cv" and "motivation_letter" at field "file_managed.fid". But, only one is possible.

I'd like something that looks like this in my scheme :

// ...
$data_table->meta = array(
  'fields' => array(
    'sid' => array(),
    'uid' => array(),
    'nom' => array(),
    'prenom' => array(),
    'type_de_poste' => array(),
    'civilite' => array(),
    'mail' => array(),
    'telephone' => array(),
    'num_rue' => array(),
    'complement' => array(),
    'code_postal' => array(),
    'ville' => array(),
    'message' => array(),
    'cv' => array(),
    'lettre_motivation' => array(),
    'email_gestionnaire' => array(),
    'submitted' => array(),
    'remote_addr' => array(),
  ),
  'join' => array(
    'webform_submissions' => array(
      'left_field' => 'sid',
      'field' => 'sid',
      'inner_join' => '0',
    ),
    'node' => array(
      'left_field' => 'nid',
      'field' => 'type_de_poste',
      'inner_join' => '0',
    ),
    'file_managed' => array(
      'left_field' => 'fid',
      'field' => 'cv',
      'inner_join' => '0',
    ),
    'file_managed' => array(
      'left_field' => 'fid',
      'field' => 'lettre_motivation',
      'inner_join' => '0',
    ),
  ),
);

It's possible ?
How i can do this ?

Thanks for your help !