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diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/IndexRoot.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/IndexRoot.java
new file mode 100644
index 000000000..8277ac51f
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/IndexRoot.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.common.request;
+
+import java.util.Collection;
+import java.util.HashSet;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+
+public class IndexRoot extends ResourceRead<Resource> {
+
+    public IndexRoot(Resource resource) {
+        super(resource);
+    }
+
+    @Override
+    public Resource perform(ReadGraph graph) throws DatabaseException {
+
+    	Layer0 L0 = Layer0.getInstance(graph);
+    	
+        if (graph.isInstanceOf(resource, L0.IndexRoot))
+            return resource;
+        
+        Collection<Resource> parents = new HashSet<Resource>(graph.getObjects(resource, L0.IsOwnedBy));
+        Resource parent = parents.size() == 1 ? parents.iterator().next() : null;
+        
+        // What is this?
+        if(resource.equals(parent))
+        	parent = null;
+
+        if (parent == null) {
+
+        	if(parents.size() > 1) {
+        		// Maybe we have a case where there is ConsistsOf and HasProperty that is incorrectly classified as IsComposedOf
+        		parent = graph.getPossibleObject(resource, L0.PartOf);
+        	} 
+
+        	// Assertion object?
+        	if(parent == null)
+        		parent = graph.getPossibleObject(resource, L0.HasObjectInverse);
+        	
+        	if(parent == null)
+        		throw new DatabaseException("Index root was not found for " + NameUtils.getSafeName(graph, resource, true));
+        	
+        } 
+        
+        try {
+        	return graph.syncRequest(new IndexRoot(parent));
+        } catch (DatabaseException e) {
+        	throw new DatabaseException("Index root was not found for " + NameUtils.getSafeName(graph, resource, true));
+        }
+
+    }
+
+}