adjustJoin example

    // Make sure $alias isn't already used; if it, start adding stuff.     $alias_base = $alias;
    $count = 1;
    while (!empty($this->relationships[$alias])) {
      $alias = $alias_base . '_' . $count++;
    }

    // Make sure this join is adjusted for our relationship.     if ($link_point && isset($this->relationships[$link_point])) {
      $join = $this->adjustJoin($join, $link_point);
    }

    // Add the table directly to the queue to avoid accidentally marking     // it.     $this->tableQueue[$alias] = [
      'table' => $join->table,
      'num' => 1,
      'alias' => $alias,
      'join' => $join,
      'relationship' => $link_point,
    ];