CGridView bug?

Maybe this is a bug?




<?php $this->widget('zii.widgets.grid.CGridView', array(

    'id'=>'lang-grid',

    'dataProvider'=>$model->search(),

    'filter'=>$model,

    'columns'=>array(

        'lang_id',

        'lang_title',        

                array(

                    'name'=>'default',

                    'value'=>'$data->default',

                    'type'=>'boolean',

                    'filter'=>array(1=>'Yes', 2=>'No'),

                    ),

        array(

            'class'=>'CButtonColumn',

        ),

    ),

)); ?>



Can not filter by the "default" Column, because the word "default" is a MySQL keyword.