From a205915dc2e32dd0a836130b965c028e8591abf1 Mon Sep 17 00:00:00 2001
From: brianjlowe <brianjlowe@440791e1-c2bf-4c1e-ad7c-caf3f8b0ebe8>
Date: Fri, 6 Jul 2012 17:25:02 +0000
Subject: [PATCH] NIHVIVO-3879 fixed blank node deletion root finder query

---
 .../vitro/webapp/rdfservice/impl/jena/RDFServiceJena.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/webapp/src/edu/cornell/mannlib/vitro/webapp/rdfservice/impl/jena/RDFServiceJena.java b/webapp/src/edu/cornell/mannlib/vitro/webapp/rdfservice/impl/jena/RDFServiceJena.java
index 5fbb544bc..76acdb839 100644
--- a/webapp/src/edu/cornell/mannlib/vitro/webapp/rdfservice/impl/jena/RDFServiceJena.java
+++ b/webapp/src/edu/cornell/mannlib/vitro/webapp/rdfservice/impl/jena/RDFServiceJena.java
@@ -93,7 +93,7 @@ public abstract class RDFServiceJena extends RDFServiceImpl implements RDFServic
             log.warn("This likely indicates a problem; excessive data may be deleted.");
         }
         
-        String rootFinder = "SELECT ?s WHERE { ?s ?p ?o OPTIONAL { ?ss ?pp ?s FILTER(!isBlank(?ss)) } FILTER (!bound(?ss)) }";
+        String rootFinder = "SELECT ?s WHERE { ?s ?p ?o OPTIONAL { ?ss ?pp ?s } FILTER (!isBlank(?s) || !bound(?ss)) }";
         Query rootFinderQuery = QueryFactory.create(rootFinder);
         QueryExecution qe = QueryExecutionFactory.create(rootFinderQuery, blankNodeModel);
         try {