in my qlikview data model, I have a fact table with an invoice date and an invoice date, whith each combinging to a seperate date dimension, so invoicedate and order date. I'd like to have a chart look at the relationship between the two, so DATE at the bottom, with seperate lines for invoice and order date. How do I achieve this, as the date is not a common field, they have seperate names, inv_date and order_date.
