public function getSqlTitleField()
	{
		return array(
			array(
				'table' => 'quiz',
				'field' => 'title',
				'has_index' => 'title'
			),
			array(
				'table' => 'quiz_answer',
				'field' => 'answer'
			),
			array(
				'table' => 'quiz_question',
				'field' => 'question'
			),
			array(
				'table' => 'quiz',
				'field' => 'description'
			)
		);
	}