Hi, All As we know, the database provide a unique key not a primary key to support we store some content we do not like redundant, we query some content use distinct because we do not want to see redundant record.
So, when I store some url or email address in my spider(written under app engine), I need to create a entity to store the content, and I guess I don't need to execute a GQL to check it has exist. Someone can tell me, Does app engine has this Property of db.Model? Maven 2008-11-06 --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
