QueryAsync not passing parameters in OdbcConnection and Sybase (SQL Anywhere)

Hi

I'm trying to execute a procedure to a Sybase database with the following code:

        DynamicParameters parameters = new();
        parameters.Add("TESTPARAM", userId, DbType.Int64, ParameterDirection.Input);

        using (var db = new OdbcConnection(_configuration["ConnectionString"]))
        {
            result.AddRange(await db.QueryAsync<T>("TESTPROCEDURE", parameters, commandType: CommandType.StoredProcedure));
        }

When I check the procedure in the dabase, I can see that the parameter is empty.

When executing as the following, the parameters are send correctly.

        DynamicParameters parameters = new();
        parameters.Add("TESTPARAM", userId, DbType.Int64, ParameterDirection.Input);
        var query = "EXEC TESTPROCEDURE @TESTPARAM=?"

        using (var db = new OdbcConnection(_configuration["ConnectionString"]))
        {
            result.AddRange(await db.QueryAsync<T>(query, parameters));
        }

I also can't seem to work with named Parameters, I need to use the ? and add the parameters in the correct position.

Anything I'm doing wrong here? :)

Thank you

Start at the QueryAsync call using OdbcConnection and compare its stored-procedure invocation with the working EXEC TESTPROCEDURE @TESTPARAM=? example. Reproduce against Sybase SQL Anywhere and trace how parameters are bound; done means the stored-procedure form passes TESTPARAM correctly, or the limitation is clearly documented with a targeted test if the repository has one.