First off I understand that it is a horrible idea to run extremely large/long running reports. I am aware that Microsoft has a rule of thumb stating that a SSRS report shoul
Obviously, its a huge report, in fact it's closer to a 1.3 GB database, than a report.
Have you thought of finding a way to split it into multiple pieces and then combine them together? (use one of several different ways to combine PDFs listed on this site.)