mysql - yii FULLTEXT インデックス マッチング クエリ

Question

次のような yii フレームワークで SQL クエリを作成したいと考えています。

mysql> SELECT id, body, MATCH (title,body) AGAINST
-> ('Security implications of running MySQL as root') AS score
-> FROM articles WHERE MATCH (title,body) AGAINST
-> ('Security implications of running MySQL as root');

私はこれを試してみましたが、うまくいきません:

    $dataProvider = new CActiveDataProvider('data', array(
            'criteria'=>array(
                'condition' => 'MATCH (title,body) AGAINST ('Security implications of running MySQL as root') AS score', 
WHERE MATCH (title,body) AGAINST ('Security implications of running MySQL as root')
                'limit' => '20',            ),
            'pagination' => false
        ));