diff -r e13aa4786a72 -r 1faff41593df server/test/unittest_rql2sql.py
--- a/server/test/unittest_rql2sql.py	Fri Jun 18 15:41:39 2010 +0200
+++ b/server/test/unittest_rql2sql.py	Fri Jun 18 18:14:55 2010 +0200
@@ -1416,6 +1416,12 @@
             self.o.attr_map.clear()
 
 
+    def test_concat_string(self):
+        self._check('Any "A"+R WHERE X ref R',
+                    '''SELECT (A || _X.cw_ref)
+FROM cw_Affaire AS _X''')
+
+
 class SqliteSQLGeneratorTC(PostgresSQLGeneratorTC):
 
     def setUp(self):