added keys() to ColumnParameters, needed for setbindparamsizes traversal

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/sqlalchemy/sql.py b/lib/sqlalchemy/sql.py
index 9bdbc0cb8..b9e9896a8 100644
--- a/lib/sqlalchemy/sql.py
+++ b/lib/sqlalchemy/sql.py
@@ -475,7 +475,10 @@ class ClauseParameters(object):
         bind = self.binds[key]
         value = self.binds_to_values[bind]
         return bind.typeprocess(value, self.dialect)
-    
+   
+    def keys(self):
+        return self.binds_to_names.values()
+ 
     def __getitem__(self, key):
         return self.get_processed(key)