--- dbtables_old.py     2006-01-17 14:11:41.471840400 -0800
+++ dbtables.py 2006-01-17 14:26:17.014297200 -0800
@@ -442,7 +442,7 @@
                              # XXXXXXX row key somehow didn't exist, assume no
                              # error
                             dataitem = None
-                        dataitem = mappings[column](dataitem)
+                        dataitem = mappings.get(column)
                         if dataitem <> None:
                             self.db.put(
                                 _data_key(table, column, rowid),