MySQL - Virtual Column not handled in INSERT, UPDATE

Please consider the following table:

CREATE TABLE `products` (
  `ProductID` int(11) NOT NULL,
  `ProductName` char(255) NOT NULL,
  `data` json NOT NULL,
  `jsonID` int(11) GENERATED ALWAYS AS (json_extract(`data`,'$.jsonID')) VIRTUAL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

if I retrieve data from the DB, linq2sql behaviour is normal, but if I InsertOrReplace and item, this exception is fired: “The value specified for generated column ‘jsonID’ in table ‘products’ is not allowed” It happens because the MySQL connector tries to set a value in a column that is virtually generated (alias read-only). Please add a property attribute such as “ReadOnly” or “Virtual” that we can apply to the C# class to indicate linq2db that the column should not be inserted in the INSERT or UPDATE queries, but only in the SELECT query Thanks in advance, Luca

C# Class implementation

[Table(Name = "Products")]
    public class Product
    {
        [PrimaryKey]
        public int ProductID { get; set; }

        [Column(Name = "ProductName"), NotNull]
        public string Name { get; set; }

        [Column(Name = "data")]
        public string data { get; set; }

        [Column(Name = "jsonID")]
        public int jsonID { get; internal set;}
    }

[Eykhler]

Try to use ColumnAttribute boolean properties: SkipOnInsert and SkipOnUpdate.

[sdanyliv]

@visual1993, it is not a bug, this attribute works for different configurations. But i agree it would be great to throw informative exception that for the same configuration two attributes are defined.