From Dwayne Wright PMP, PMI-ACP, CSM
Certified FileMaker Developer
Unicode Indexing is an option for field indexing that uses an international internal number code to distinguish the characters in a field. This form of indexing is case sensitive (a nice option sometimes but does put an extra burden on searches and sorts).
I was told once that the indexing option you choose for a field doesn’t affect the speed of sorting records. If this is true, this doesn’t mean that the index language chosen for a sort will affect the sorting results. This can definitely affect the results of your sort order.