Here is the table definition for these examples.
CREATE TABLE MyTable ( a INTEGER, b INTEGER, c JSON(64000) CHARACTER SET LATIN AUTO COLUMN);
This statement removes the auto column capability from column c.
ALTER TABLE MyTable c JSON(64000) CHARACTER SET LATIN NOT AUTO COLUMN;
This statement adds the column j with the JSON data type, a 4K byte length, BSON storage format, auto column capability, and a default value of NULL.
ALTER TABLE MyTable ADD j JSON(64000) STORAGE FORMAT BSON AUTO COLUMN NULL;