Rolling reload problem

[DavidGruzman]

Consider example when all but one files are fit in the node disk. So, during writing of latest file we will delete first one. It is ok.
Then consider we run the same query again, which access files in the same order. We will look for first file, find no place and delete second one. Then we will need second file ... As a result we will reload all the data instead of reloading just one file.
Solution I can see, is to look on all files needed for plan fragment, and then plan access and reload minimal required amount. If you see other approaches - please suggest