protected function _aliasColTypes($colTypes)
    {
        $repository = $this->manager()->getRepository();
        if (!method_exists($repository, 'aliasField')) {
            return $colTypes;
        }

        $return = [];
        foreach ($colTypes as $field => $colType) {
            $return[$repository->aliasField($field)] = $colType;
        }

        return $return;
    }