> "select name from permissions"

$this->Model->find(array('fields'=>'Model.fieldName'))

$this->Model->find(array('fields'=>array('Model.fieldName')))

$this->Model->findAllBy<fieldName>(string $value, array $fields, array $order, int $limit, int $page, int $recursive);

$this->Permission->findAllByName('Some Name');

$workshop_lists = ClassRegistry::init('Workshop')->find('all',array(
    'fields'=>array('user_id', 'title')
    ),
     array(
       'conditions' => array('user_id' => $this->Auth->user('id')),
       'group' => 'Workshop.user_id',
        'order' => 'posted DESC',
    ));

$this->Model->find('list',$params);

$params=array('fields'=>array('name'));

$arrayOfNames= $this->Model->find('list',array('fields'=>array('name')));

$this->Model->find('list', ['valueField' => 'fieldName']);