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https://issues.apache.org/jira/browse/JENA-1893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17098351#comment-17098351
] Marco Neumann commented on JENA-1893: ------------------------------------- thanks for commenting Andy, still looks like Blazegraph is more "forgiving" on types by casting function arguments to strings by default. In any event this specific answers my question for now. Do I have to close this question in some way now on Jira to mark it as solved? > Variable not in scope for property function > -------------------------------------------- > > Key: JENA-1893 > URL: https://issues.apache.org/jira/browse/JENA-1893 > Project: Apache Jena > Issue Type: Question > Components: ARQ > Affects Versions: Jena 3.14.0 > Environment: ubunutu 19.10 > java 13 > Reporter: Marco Neumann > Priority: Trivial > > following query doesn't produce results for ?subpop > PREFIX loticoowl: <http://www.lotico.com/ontology/> > PREFIX fn:<http://www.w3.org/2005/xpath-functions#> > SELECT ?pop (fn:substring(?pop ,0,4) AS ?subpop) WHERE{ > ?x loticoowl:memberCount ?pop > } > http://query.lotico.com/#PREFIX%20loticoowl%3A%20%3Chttp%3A%2F%2Fwww.lotico.com%2Fontology%2F%3E%0APREFIX%20afn%3A%20%3Chttp%3A%2F%2Fjena.apache.org%2FARQ%2Ffunction%23%3E%0APREFIX%20fn%3A%3Chttp%3A%2F%2Fwww.w3.org%2F2005%2Fxpath-functions%23%3E%0A%0ASELECT%20%3Fpop%20%28fn%3Asubstring%28%3Fpop%20%2C0%2C4%29%20AS%20%3Fsubpop%29%20WHERE%7B%0A%20%20%20%20%20%20%20%3Fx%20loticoowl%3AmemberCount%20%3Fpop%0A%7D%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20 > a similar query on wikidata.org produces results as expected > https://query.wikidata.org/#PREFIX%20loticoowl%3A%20%3Chttp%3A%2F%2Fwww.lotico.com%2Fontology%2F%3E%0APREFIX%20afn%3A%20%3Chttp%3A%2F%2Fjena.apache.org%2FARQ%2Ffunction%23%3E%0APREFIX%20fn%3A%3Chttp%3A%2F%2Fwww.w3.org%2F2005%2Fxpath-functions%23%3E%0A%0ASELECT%20%3Fx%20%3Fpop%20%28fn%3Asubstring%28%3Fpop%20%2C0%2C3%29%20AS%20%3Fsubpop%29%20WHERE%7B%0A%20%20%20%20%20%20%20%3Fx%20wdt%3AP1082%20%3Fpop.%0A%20%20%20%20%20%20%20%3Fx%20wdt%3AP31%20wd%3AQ6256%0A%7D%20LIMIT%2010 -- This message was sent by Atlassian Jira (v8.3.4#803005)
