diff --git a/src/helma/objectmodel/db/Relation.java b/src/helma/objectmodel/db/Relation.java
index 335618c0..b08dc171 100644
--- a/src/helma/objectmodel/db/Relation.java
+++ b/src/helma/objectmodel/db/Relation.java
@@ -882,11 +882,11 @@ public final class Relation {
                             }
                         }
                         if (value == null) {
-                            if (columnName.equals(dbmap.getIDField())) {
+                            if (columnName.equalsIgnoreCase(dbmap.getIDField())) {
                                 value = nonvirtual.getID();
-                            } else if (columnName.equals(dbmap.getNameField())) {
+                            } else if (columnName.equalsIgnoreCase(dbmap.getNameField())) {
                                 value = nonvirtual.getName();
-                            } else if (columnName.equals(dbmap.getPrototypeField())) {
+                            } else if (columnName.equalsIgnoreCase(dbmap.getPrototypeField())) {
                                 value = dbmap.getExtensionId();
                             }
                         }
@@ -1209,7 +1209,7 @@ public final class Relation {
     public Map getKeyParts(INode home) {
         Map map = new HashMap();
         for (int i=0; i<constraints.length; i++) {
-            if (ownType.getIDField().equals(constraints[i].localName)) {
+            if (ownType.getIDField().equalsIgnoreCase(constraints[i].localName)) {
                 map.put(constraints[i].foreignName, home.getID());
             } else {
                 map.put(constraints[i].foreignName, home.getString(constraints[i].localProperty()));
diff --git a/src/helma/objectmodel/db/UpdateableSubnodeList.java b/src/helma/objectmodel/db/UpdateableSubnodeList.java
index c8ffed6a..0eeb6819 100644
--- a/src/helma/objectmodel/db/UpdateableSubnodeList.java
+++ b/src/helma/objectmodel/db/UpdateableSubnodeList.java
@@ -245,7 +245,7 @@ public class UpdateableSubnodeList extends OrderedSubnodeList {
      */
     private Node updateBorder(int idx, NodeHandle nh, Node node) {
         String cret = updateCriteria[idx];
-        if (rel.otherType.getIDField().equals(cret)) {
+        if (rel.otherType.getIDField().equalsIgnoreCase(cret)) {
             String nid = nh.getID();
             if (updateTypeDesc[idx]
                     && OrderedSubnodeList.compareNumericString(nid, (String) lowestValues[idx]) < 0) {
@@ -282,7 +282,7 @@ public class UpdateableSubnodeList extends OrderedSubnodeList {
         Node node = nh.getNode(rel.otherType.getWrappedNodeManager());
         for (int i = 0; i < updateCriteria.length; i++) {
             String cret = updateCriteria[i];
-            if (cret.equals(rel.otherType.getIDField())) {
+            if (cret.equalsIgnoreCase(rel.otherType.getIDField())) {
                 check[i] = (updateTypeDesc[i]
                                 && nh.getID().equals(lowestValues[i]))
                         || (!updateTypeDesc[i]