在使用EntityFramework时，如何限制INSERT中使用的列数？

public class MyEntity
{
    public int Id { get; set; }
    
    public string Column1 { get; set; }
    
    [NotMapped]
    public string Column2 { get; set; }
    
    public string Column3 { get; set; }
}

public class MyContext : DbContext
{
    public DbSet<MyEntity> MyEntities { get; set; }
    
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<MyEntity>()
            .Ignore(e => e.Column2);
    }
}