I have a question on this page. I m thinking of changing the source type of Item List to TEMPORARY. The source table is Item. Since there are a lot of actions/nav/reports associated with this, I am just a little careful making the change. The reason I want to make it temporary is so I can populate a new column with calculated fields which need to be run real time. Creating a formfield column will not do as the logic requires more than summation, lookups or what have you. If I change to temporary, I gather I can modify the new column only without actually saving as it's not supposed to update the real table.
My question for you: do you see any repercussions when changing the source type of Item List Page to Temporary? Am I over simplifying the concept of changing to sourcetype to Temporary? My ultimate goal is to allow users to filter on the new column once I populate it at run time.