Fix bug in handling polymorphic derived classes without any value members

1 files changed, 47 insertions, 0 deletions

diff --git a/common/inheritance/polymorphism/test13.hxx b/common/inheritance/polymorphism/test13.hxx
new file mode 100644
index 0000000..8f80cdb
--- /dev/null
+++ b/common/inheritance/polymorphism/test13.hxx
@@ -0,0 +1,47 @@
+// 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