Index: java/engine/org/apache/derby/impl/sql/compile/BinaryOperatorNode.java
===================================================================
--- java/engine/org/apache/derby/impl/sql/compile/BinaryOperatorNode.java	(revision 227252)
+++ java/engine/org/apache/derby/impl/sql/compile/BinaryOperatorNode.java	(working copy)
@@ -600,6 +600,7 @@
 					mb.push(getTypeServices().getScale());
 					mb.push(true);
 					mb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.VariableSizeDataValue, "setWidth", ClassName.DataValueDescriptor, 3);
+					mb.cast(resultTypeName);
 				}
 			}