[Owncloud] unique value to identify files?

[lebowski at corvus.uberspace.de]

Hi,

if i move or rename a file, in the table OC_filecache the fileid get's 
a new value. Is there a way to get a unique and always valid value for a 
file, regardless of the file is renamed or moveed (but still is the same 
file)?

Thanks, Martin