Property functions: Tracker SPARQL Library Reference Manual

## Property functions

The SPARQL documentation says:

“ In addition, SPARQL provides the ability to invoke arbitrary functions […]. These functions are invoked by name (an IRI) within a SPARQL query. ”

Tracker allows using all defined `rdf:Property` instances as functions. If the property has multiple values, it will propagate to the cursor as the `GROUP_CONCAT` (with comma separator) of the multiple values.