Hi boson, It sounds like this idea belongs in the issue tracker as a feature request: http://code.google.com/p/googleappengine/issues/list
Happy coding, Jeff On Nov 18, 9:27 am, boson <[EMAIL PROTECTED]> wrote: > Anybody like this? I propose that Google allows Datastore entries to > expire and be automatically purged. The default would be to never > expire (current behavior), but we might get an optional param, like > "time" from memcache.add(): > > time > Optional expiration time, either relative number of seconds from > current time (up to 1 month), or an absolute Unix epoch time. By > default, items never expire. > > I'm having a hard time getting my head around managing retention > policies on old BigTable data, particularly with the lack of support > for long-running requests and the slowness/inability to make large > queries. It seems that this simple addition to the db.Model API would > address a lot of these problems! > > E.g. If you're storing "gifts" given for a simple social app, you > might set a 6 month retention on your Gift entities. This keeps your > data store clean without requiring extra maintenance. Users might > flag to "keep" a special gift (which would set the entity to never > expire), but otherwise you could keep running without indexes getting > huger and slower. > > E.g. If you want to store votes for a week-long poll to make sure > nobody votes twice. You tally votes as you go (sharded counters of > course), but store Vote Entities keyed by user IDs to allow quick > checks if people voted yet. After the poll is closed, you don't want > thousands of Vote records sitting around in your store. If they had > an expiration of 1 month, they'd automatically get cleaned up. > > Is there a better way of handling this? --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
