in both Advanced for FileMaker 14 and Advanced for FileMaker 15, there is an advantage in using PSOS that I can't understand:
Some cases have to do with improving the performance of a system in some way:
Periodic updates of calculated values, such as inventory quantity-on-hand or student grade point average, because searching on stored, updated values is likely to work much faster than searching on unstored calculation field data.
Searching on stored values will always be faster than searching on unstored values, it has nothing to where the script executed . Is there something I don't get ?