framework/db/Command.php
public function addCommentOnColumn($table, $column, $comment)
    {
        $sql = $this->db->getQueryBuilder()->addCommentOnColumn($table, $column, $comment);

        return $this->setSql($sql)->requireTableSchemaRefresh($table);
    }
public function addCommentOnColumn($table, $column, $comment)
    {
        $sql = $this->db->getQueryBuilder()->addCommentOnColumn($table, $column, $comment);

        return $this->setSql($sql)->requireTableSchemaRefresh($table);
    }
Builds a SQL command for adding comment to column.

@param string $table the table whose column is to be commented. The table name will be properly quoted by the method.
@param string $column the name of the column to be commented. The column 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.
@return $this the command object itself
@since 2.0.8