Method OrderByDescendingRedb<TKey>(Expression<Func<IRedbObject, TKey>>)
Sort descending by IRedbObject base fields.
Uses IRedbObject for compile-time safety - Props not visible in IntelliSense!
IOrderedRedbQueryable<TProps> OrderByDescendingRedb<TKey>(Expression<Func<IRedbObject, TKey>> keySelector)