public function dropIndex($name, $table = null)
    {
        return $this->db->dropIndex($table, $name)
                        ->execute();
    }
public function dropIndex($name, $table = null)
    {
        return $this->db->dropIndex($table, $name)
                        ->execute();
    }
public function dropIndex ( $ name , $ table = null ) { return $ this -> db -> dropIndex ( $ table , $ name ) -> execute ( ) ; }
Drops an INDEX

@param string $name Index name
@param string $table Table name. By default it uses mapper's table
@return boolean
Drops an INDEX