How do I change dynamic column names in MariaDB?

Question

I have created a table using the dynamic columns feature in MariaDB:

CREATE TABLE items
(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
 name varchar(100) NOT NULL,
 attributes BLOB);

INSERT INTO items (name, attributes) VALUES
('T-shirt', COLUMN_CREATE('color', 'blue', 'size', 'XL', 'price' '30.0'));

The dynamic column contains the columns color , size and price . How would I rename, for instance, the column price to amount , while actually retaining this column's content? I know about COLUMN_ADD and COLUMN_DELETE , but I haven't seen a COLUMN_RENAME function. Is there a way to do this?

Answer 1

我的猜测是，您将必须使用COLUMN_ADD然后使用COLUMN_DELETE以不同的名称重新添加相同的列数据，然后从动态列中删除先前的列名称。