Switch from FILTER NOT EXISTS to MINUS to avoid Jena 3.8+ performance…

… issue. Fixes NatLibFi#829
tfrancart · Dec 17, 2018 · 00eabb3 · 00eabb3
1 parent 0abb274
commit 00eabb3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/model/sparql/GenericSparql.php b/model/sparql/GenericSparql.php
@@ -367,7 +367,7 @@ private function generateConceptInfoQuery($uris, $arrayClass, $vocabs) {
                       ?x skos:prefLabel ?xl .
                       FILTER NOT EXISTS {
                         ?x skos:member ?other .
-                        FILTER NOT EXISTS { ?other skos:broader ?uri }
+                        MINUS { ?other skos:broader ?uri }
                       }
                     }";
         }