If you have different behavior on dev_appserver and the production server you should file a bug report in the issue list
http://code.google.com/p/googleappengine/issues/list At least dev_appserver should report the transaction problem the same as production. dev_appserver has code to check for multiple entity groups but it might miss your situation. (if you find the bug yourself, don't mention the solution in the issue report, it won't be part of dev_appserver unless you sign an agreement, then we have to patch dev_appserver ourself each time there is a new version) 2009/2/7 Qian Qiao <qian.q...@gmail.com>: > The code in my original email worked in dev_appserver, which I suppose > is incorrect. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---