Result Validation

[liss-h]

For general correctness tests of triplestores it would be handy if IGUANA could validate query results.

Two major problems:

1. If there is no pre-generated ground-truth: Where do we get that from?
2. If there is pre-generate ground-truth provided by the user: Blank nodes are problematic as their labels could differ while still being the same entity. To correctly determine equality IGUANA would need a way to solve the graph isomorphism problem.

This is by no means a simple task and probably needs further research/thinking, just opening this issue so we can keep track of it.

Ordering is relevant if the outermost query uses ORDER BY.