Exceeded maximum size allowed when using join tables

Hi Guys,

If I pass the following code with DAX in directquery I get the message; exceeded the maxmum allowed size of '1000000' rows. I think it has to do with the +0 in my code. Anyone know what I did wrong here. 

tablnew = 
VAR A =
    SELECTCOLUMNS (
        'Loan',
        "LoanID", 'LoanPart'[LoanID]+0,
        "Balance", 'LoanPart'[Balance]
    )
VAR B =
    SELECTCOLUMNS (
        'Pipeline',
        "LoanID", 'Pipeline'[LoanID]+0,
        "Groupproduct", 'Pipeline[Groupproduct]
    )
VAR Result =
    NATURALLEFTOUTERJOIN ( A, B )
RETURN
    Result