3.8->4.1.10 step 102 in 4.0a was skipped. plz help run manually

[ru55ian]

can anyone help?

[ru55ian]

Gents, i have recently perfomed an upgrade from 3.8 to 4.1 in the upgrade to 4.0.a there was a step 102, where everytime i ran it, it would give me memory errors. I had to skip it and continue. Everything is working great, however in that step 102 was crusial adjustments to attchements, since i am not able to view most of the attachements.
here is the code for that step 102, anyone can help me apply it manually?

/**
 * Step #102
 *
 */
 function step_102()
 {
  $this->show_message(sprintf($this->phrase['vbphrase']['update_table'], TABLE_PREFIX . 'attachment'));
  require_once(DIR . '/includes/adminfunctions_attachment.php');
  build_attachment_permissions();
  // Kill duplicate files in the filedata table
  $files = $this->db->query_read("
   SELECT count(*) AS count, filehash, filesize
   FROM " . TABLE_PREFIX . "filedata
   GROUP BY filehash, filesize
   HAVING count > 1
  ");
  while ($file = $this->db->fetch_array($files))
  {
   $refcount = 0;
   $filedataid = 0;
   $killfiles = array();
   $files2 = $this->db->query("
    SELECT
     filedataid, refcount, userid
    FROM " . TABLE_PREFIX . "filedata
    WHERE
     filehash = '$file[filehash]'
      AND
     filesize = $file[filesize]
   ");
   while ($file2 = $this->db->fetch_array($files2))
   {
    $refcount += $file2['refcount'];
    if (!$filedataid)
    {
     $filedataid = $file2['filedataid'];
    }
    else
    {
     $killfiles[$file2['filedataid']] = $file2['userid'];
    }
   }
   $this->db->query_write("UPDATE " . TABLE_PREFIX . "filedata SET refcount = $refcount WHERE filedataid = $filedataid");
   $this->db->query_write("UPDATE " . TABLE_PREFIX . "attachment SET filedataid = $filedataid WHERE filedataid IN (" . implode(",", array_keys($killfiles)) . ")");
   $this->db->query_write("DELETE FROM " . TABLE_PREFIX . "filedata WHERE filedataid IN (" . implode(",", array_keys($killfiles)) . ")");
   foreach ($killfiles AS $filedataid => $userid)
   {
    if ($this->registry->GPC['attachtype'] == ATTACH_AS_FILES_NEW)
    {
     $path = $this->registry->options['attachpath'] . '/' . implode('/', preg_split('//', $userid,  -1, PREG_SPLIT_NO_EMPTY));
    }
    else
    {
     $path = $this->registry->options['attachpath'] . '/' . $userid;
    }
    @unlink($path . '/' . $filedataid . '.attach');
    @unlink($path . '/' . $filedataid . '.thumb');
   }
  }
 }
 /**
 * Step #103
 *
 */