code: public function addCommentOnTable($table, $comment)
      {
          $time = $this->beginCommand("add comment on table $table");
          $this->db->createCommand()->addCommentOnTable($table, $comment)->execute();
          $this->endCommand($time);
      }
docs: Builds a SQL statement for adding comment to table.
  
  @param string $table the table to be commented. The table name will be properly quoted by the method.
  @param string $comment the text of the comment to be added. The comment will be properly quoted by the method.
  @since 2.0.8