From 15f718bbf874a77b1079a55f29335447aeba17dd Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 2 Nov 2011 10:18:25 +0200
Subject: Prevent potential image overwrite in MySQL query result

---
 common/query/driver.cxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'common')

diff --git a/common/query/driver.cxx b/common/query/driver.cxx
index d9d0f12..45392b8 100644
--- a/common/query/driver.cxx
+++ b/common/query/driver.cxx
@@ -422,7 +422,12 @@ main (int argc, char* argv[])
       ++i;
       assert (i != r.end ());
       auto_ptr<person> joe (db->load<person> (3));
-      assert (i->last_name_ == "Doe");
+      assert (i->last_name_ == "Doe"); // Actual load.
+
+      person p;
+      joe.reset (db->load<person> (3)); // Overwrite object image again.
+      i.load (p);
+      assert (p.last_name_ == "Doe");
 
       t.commit ();
     }
-- 
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