fragment_downloaded_cb({"url":"defining-ontologies.html#defining-indexes","fragment":"Defining indexes\nIt may be the case that SPARQL queries performed on the endpoint are\nknown to match, sort, or filter on certain properties more often than others.\nIn this case, the ontology may use nrl:domainIndex in the class definition:\nClasses may define multiple domain indexes.\nNote: Be frugal with indexes, do not add these proactively. An index in the wrong\nplace might not affect query performance positively, but all indexes come at\na cost in disk size.\n"});