Github user bbende commented on the issue:
https://github.com/apache/nifi/pull/2518
I think we are saying the same thing, the authorizations can come from
anywhere, but I was just using end-user as an example.
In Accumulo you would issue an operation and pass in an array of labels
like [TS, S].
Cells that have (TS), (S), (TS || S), or (TS & S) would all match.
Cells that have (TS & FOO) would not.---
