lithium\data\source\Database::alias PHP Method

    public function alias($alias, $context)
    {
        if (!$alias && ($model = $context->model())) {
            $alias = $model::meta('name');
        }
        return $alias ? "AS " . $this->name($alias) : null;
    }

 public function alias($alias, $context)
 {
     if ($context->type() === 'update' || $context->type() === 'delete') {
         return;
     }
     return parent::alias($alias, $context);
 }