Filter dynamic column with ExpressionMethod throws Exception

LinQToDb: 2.7.4 Firebird: 2.1

Hi,

is it possible to use dynamic columns with ExpressionMethods? I have the following:

[Table("PERSON")]
public class Person{
    [COLUMN("AGE")]
    public int Age {get; set;}
    [COLUMN("NAME")]
    public string Name {get; set;}

    [ExpressionMethod(nameOf(GetTypeExpr), IsColumn = true)]
    public int Type {get; set;}

    public static Expression<Func<Person, int>> GetTypeExpr(){
        return p => (Sql.Property<int>(p, "OPTIONS")& 0xF);
    }
}

The table looks like this:

Tablename PERSON, Columns: AGE (int), NAME (int), OPTIONS (string)

The real context looks complexer…

This works:

using(var db = new MyDb()){
    var result = db.GetTable<Person>().ToList();
}

result has all Types set with the right values. But if I put in a Where filter, it throws an ArgumentOutOfRangeException (TableContext.cs line 335)

using(var db = new MyDb()){
    var result = db.GetTable<Person>().Where(p => p.Type == 4).ToList();
}

[sdanyliv]

Sql.Expr<int>("BIN_AND(OPTIONS, 1)")

[frankiDotNet]

Thanks!