Concurrent execution of the filtering step

[dyamon]

We could easily execute the filtering steps for different queries in parallel, but we need to understand how this affects RDFox performance and execution. In particular we should ask ourselves:

• Is RDFox able to undestand that each connection (filtering step) will work on a different named graph?
• Is RDFox going to parallelise the materialisation of all open connection? Or maybe the materialisation is restricted to a single materialisation step and request from different connections are handled in sequence?

The easiest way to find out is probably ask the developers.