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diff --git a/common/view/olv/test9.hxx b/common/view/olv/test9.hxx
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+++ b/common/view/olv/test9.hxx
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+// file      : common/view/olv/test9.hxx
+// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST9_HXX
+#define TEST9_HXX
+
+#include <string>
+#include <memory>  // shared_ptr
+
+#include <odb/core.hxx>
+
+// Test loading polymorphic objects.
+//
+#pragma db namespace table("t9_") session
+namespace test9
+{
+  using std::shared_ptr;
+
+  #pragma db object polymorphic pointer(shared_ptr)
+  struct root
+  {
+    virtual ~root () {}
+    root (int n_ = 0): n (n_) {}
+
+    #pragma db id auto
+    int id;
+
+    int n;
+  };
+
+  #pragma db object
+  struct base: root
+  {
+    base (int n_ = 0, const char* s_ = ""): root (n_), s (s_) {}
+
+    std::string s;
+  };
+
+  #pragma db object
+  struct derived: base
+  {
+    derived (int n_ = 0, const char* s_ = "", bool b_ = false)
+        : base (n_, s_), b (b_) {}
+
+    bool b;
+  };
+
+  // Load via root.
+  //
+  #pragma db view object(root)
+  struct view1r
+  {
+    shared_ptr<root> o;
+    int n;
+  };
+
+  // Load via base.
+  //
+  #pragma db view object(base)
+  struct view1b
+  {
+    std::string s;
+    shared_ptr<base> o;
+    int n;
+  };
+
+  // Load via derived.
+  //
+  #pragma db view object(derived)
+  struct view1d
+  {
+    std::string s;
+    shared_ptr<derived> o;
+    int n;
+  };
+}
+
+#endif // TEST9_HXX