If i'm correct, currently only the file/folder name and the path stored, and tracked in the database? Is it possible in the future to store extra file/folder properties like 'Date Created' or 'Date Modifitied'.
What i'm saying is this, i use the following on a daily basis:
this query takes like 10seconds to run. Obviously it's not the end of the world, but i got used to get a result immediately. So i would sacrifice performance (or anything like that) to get a result asap.