Using Aggregates
I need to count raw data from deliveries, to aggregate all recipients who were sent, clicked and opened an email. I need to present these metrics based on the country of the recipient, not the country of the campaign that sent the email. So individual recipients have received more than one delivery, but i don't care, I just need to aggregate the recipients by country and then calculate the open rates and click rates. So the question here is how to aggregate, based on primary key the number of emails sent to each of these recipients. Please help!!
