I have dates, which I would like to convert and group on month-year basis, so I could use it as a filter in QS app.
When I do conversion Date(POSTING_DATE,'MM-YYYY') then as a result, I get duplicate results. For example, for each date, which is in January 2019, I get '01-2019'. However, I would like to have only one '01-2019' per all the dates, which are in January 2019. How to achieve this?