Merge pull request #413 from lblod/enhancement/remove-empty-literals

Enhancement/remove empty literals
2024-04-17 10:06:19 +02:00
parent cdf6f8f75f 976b2b02df
commit 30504c9135
1 changed files with 20 additions and 0 deletions
--- a/config/migrations/2024/20240327131000-delete-all-empty-literals.sparql
+++ b/config/migrations/2024/20240327131000-delete-all-empty-literals.sparql
@@ -0,0 +1,20 @@
+DELETE {
+  GRAPH ?g { 
+    ?s ?p ?o .
+  }
+}
+WHERE {
+  VALUES ?g {
+    <http://mu.semte.ch/graphs/administrative-unit>
+    <http://mu.semte.ch/graphs/worship-service>
+    <http://mu.semte.ch/graphs/public>
+    <http://mu.semte.ch/graphs/privacy-centric-graph>
+    <http://mu.semte.ch/graphs/worship-privacy-centric-graph>
+  }
+  graph ?g {
+    ?s ?p ?o
+
+    FILTER (isLiteral(?o))
+    FILTER regex(str(?o), "^\\s*$")
+  }
+}