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diff --git a/common/inheritance/polymorphism/test13.hxx b/common/inheritance/polymorphism/test13.hxx
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+++ b/common/inheritance/polymorphism/test13.hxx
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+// file      : common/inheritance/polymorphism/test13.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST13_HXX
+#define TEST13_HXX
+
+#include <string>
+#include <vector>
+
+#include <odb/core.hxx>
+
+// Test polymorphic derived without any non-container data members (which
+// results in an empty SELECT statement).
+//
+#pragma db namespace table("t13_")
+namespace test13
+{
+  #pragma db object polymorphic
+  struct root
+  {
+    virtual ~root () {}
+
+    #pragma db id auto
+    unsigned long id;
+  };
+
+  #pragma db object
+  struct base: root
+  {
+    std::vector<int> nums;
+  };
+
+  #pragma db object
+  struct derived: base
+  {
+    std::vector<std::string> strs;
+  };
+
+  #pragma db object
+  struct base1: root
+  {
+    // Nothing.
+  };
+}
+
+#endif // TEST13_HXX