REDERIVE_ON_USE is a toggle which allows the system to query the employee data each time the people list is used to ensure that the people list has been built according to the most recent changes done in the system. By using this toggle, the Administrator would not have to manually update the people list each time there are HR changes.
If the Rederive on Use toggle is checked, the People tab will not contain any details and the Update Details button will be grayed out. When the details are requested, the where clause will be used in a query against the assignment details at runtime.
TIP: Depending on the where clause and the number of assignment detail records this may not give the best performance. If performance is an issue it would be better to use a people list that has the details pre-generated; however, the administrator is then responsible for updating the details.
