In order to count the pledge balance without counting pledge payments, we checked the box Pledge > Donation in our smart field. When we previewed the results of the smart field in query, it showed the full pledge amount and not just the balance.
We are currently evaluating this issue and will update this article when we have more information.
Steps to Duplicate
Go to Administration > Smart Fields
Click Add and select Constituent Revenue Application Amounts
On the Parameters tab, check the Pledge > Donation box in the Transaction type/Application section
Check Donation in the Revenue types, fill out any other needed details and Save
Click the drop-down next to the smart field and click Process Smart Field
Go to Analysis > Information Library > Add an ad-hoc query, select Constituents and click OK
In the left column expand Smart Fields and click the name of your smart field
Drag Value from the middle column to Results Fields to Display
Select the Preview Results tab and see that the value shows the full pledge amount instead of the pledge balance for each record