This graphic is a process diagram. The bottom box is labeled DFO 0 and contains an oval containing the words "dimension scan." The box on top is labeled DFO 1. The "dimension scan" oval points to the "KEY VECTOR CREATE" oval in DFO 1. This oval points up to the "GROUP BY vector" oval in DFO 1. This oval points to an oval placed above the two DFO boxes that is labeled "temporary table create."