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diff --git a/common/polymorphism/test2.hxx b/common/polymorphism/test2.hxx
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+// file      : common/polymorphism/test2.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST2_HXX
+#define TEST2_HXX
+
+#include <string>
+#include <vector>
+
+#include <odb/core.hxx>
+#include <odb/lazy-ptr.hxx>
+
+// Test inverse object pointers in polymorhic bases.
+//
+#pragma db namespace table("t2_")
+namespace test2
+{
+  struct root;
+
+  #pragma db object
+  struct root_pointer
+  {
+    root_pointer (root* r = 0): p (r) {}
+
+    #pragma db id auto
+    unsigned long id;
+
+    root* p;
+  };
+
+  #pragma db object polymorphic
+  struct root
+  {
+    virtual ~root () {}
+    root () {}
+    root (unsigned long i): id (i) {}
+
+    #pragma db id
+    unsigned long id;
+
+    #pragma db inverse(p)
+    odb::lazy_ptr<root_pointer> rp;
+  };
+
+  struct base;
+
+  #pragma db object
+  struct base_pointer
+  {
+    base_pointer (base* b = 0) {if (b != 0) vp.push_back (b);}
+
+    #pragma db id auto
+    unsigned long id;
+
+    std::vector<base*> vp;
+  };
+
+  #pragma db object
+  struct base: root
+  {
+    base () {}
+    base (unsigned long i, const std::string& s): root (i), str (s) {}
+
+    std::string str;
+
+    #pragma db inverse(vp)
+    odb::lazy_ptr<base_pointer> bp;
+  };
+
+  #pragma db object
+  struct derived: base
+  {
+    derived () {}
+    derived (unsigned long i, const std::string& s, unsigned long n)
+        : base (i, s), num (n) {}
+
+    unsigned long num;
+  };
+
+  // Views.
+  //
+  #pragma db view object(root_pointer = rp) object(root)
+  struct root_view
+  {
+    #pragma db column(rp::id)
+    unsigned long rp_id;
+
+    #pragma db column(root::id)
+    unsigned long r_id;
+  };
+
+  #pragma db view object(base_pointer) object(base = b)
+  struct base_view
+  {
+    #pragma db column(base_pointer::id)
+    unsigned long bp_id;
+
+    #pragma db column(b::id)
+    unsigned long b_id;
+
+    std::string str;
+  };
+}
+
+#endif // TEST2_HXX