Here, we are using the capture snapshot feature in the plan view to capture the snapshot for a plan in RTC, and we want to demonstrate the work items related with a snapshot in a RRDI report, but we do not know how to get the related work items of a plan snapshot from the DW. What we know currently is that there have a request baseline table and a request history table in the DW, but we are not sure whether we could get the needed information from these tables.