Hi, We have a query with property paths which is very slow. We suspected that it's related to this Jena bug:
https://issues.apache.org/jira/browse/JENA-1195 I'm now on apache-jena-fuseki-2.4.1-SNAPSHOT of today and when I had a look at the log when executing the slow query I see tons of entries like [2016-08-24 10:45:08] BindingHashMap WARN Binding.add: null value - ignored Query we execute (endpoint is public): http://data.alod.ch/sparql/#query=PREFIX+%3A+%3Chttp%3A%2F%2Fvoc.zazuko.com%2Fzack%23%3E%0APREFIX++rdfs%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%0APREFIX++text%3A+%3Chttp%3A%2F%2Fjena.apache.org%2Ftext%23%3E%0APREFIX++rdf%3A++%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%0APREFIX++skos%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2004%2F02%2Fskos%2Fcore%23%3E%0APREFIX++xsd%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23%3E%0A%0ACONSTRUCT+%7B%0A++_%3Ab0+%3AnumberOfResults+%3Fcount.%0A++_%3Ab0+%3AqueryStart+%3Fquerystart.%0A++_%3Ab0+%3AqueryEnd+%3Fqueryend.%0A%7D%0AWHERE+%7B%0A++%7B+%0A++++SELECT+(COUNT(%3Fsub)+as+%3Fcount)+%7B%0A++++++GRAPH+%3Chttp%3A%2F%2Fdata.alod.ch%2Fgraph%2Finference-supertitle%3E+%7B%0A++++++++(%3Fsub+%3Fscore+%3Fliteral)+text%3Aquery+(skos%3AhiddenLabel+%22*%22)+.%0A++++++%7D%0A++++GRAPH+%3Fg+%7B%0A++++++%3Fsub+%5E%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2FhasPart%3E%2B+%22http%3A%2F%2Fdata.staatsarchiv-bs.ch%2Fid%2Farchivalresource%2FCH-000027-1%2Feisenbahn-a-19%22+.++++%0A++++%7D%0A++++%7D%0A++%7D%0A++UNION%0A++%7B%0A++++SELECT+(MIN(%3Fresourcestart)+as+%3Fquerystart)+(MAX(%3Fresourceend)+as+%3Fqueryend)+%7B%0A++++++GRAPH+%3Chttp%3A%2F%2Fdata.alod.ch%2Fgraph%2Finference-supertitle%3E+%7B%0A++++++++(%3Fsub+%3Fscore+%3Fliteral)+text%3Aquery+(skos%3AhiddenLabel+%22*%22)+.%0A++++++%7D%0A++++GRAPH+%3Fg+%7B%0A++++++%3Fsub+%5E%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2FhasPart%3E%2B+%22http%3A%2F%2Fdata.staatsarchiv-bs.ch%2Fid%2Farchivalresource%2FCH-000027-1%2Feisenbahn-a-19%22+.++++%0A++++%7D%0A++++++GRAPH+%3Ft+%7B%0A++++++++OPTIONAL+%7B%0A++++++++++%3Fsub+%3Chttp%3A%2F%2Fwww.w3.org%2F2006%2Ftime%23intervalEnds%3E+%3Fresourceend+.%0A++++++++%7D%0A++++++++OPTIONAL+%7B%0A++++++++++%3Fsub+%3Chttp%3A%2F%2Fwww.w3.org%2F2006%2Ftime%23intervalStarts%3E+%3Fresourcestart+.++%0A++++++++%7D%0A++++++++FILTER(+datatype(xsd%3Adate(%3Fresourcestart))+%3D+xsd%3Adate)%0A++++++++FILTER(+datatype(xsd%3Adate(%3Fresourceend))+%3D+xsd%3Adate)%0A++++++%7D%0A++++%7D%0A++%7D%0A%7D&contentTypeConstruct=text%2Fturtle&contentTypeSelect=application%2Fsparql-results%2Bjson&endpoint=http%3A%2F%2Fdata.admin.ch%3A3030%2Falod%2Fquery&requestMethod=POST&tabTitle=Query&outputFormat=table any ideas of what could be going wrong here? regards Adrian
