Thanks for confirming this Nick On Dec 2, 5:48 pm, "Nick Johnson (Google)" <nick.john...@google.com> wrote: > Hi, > > The method you describe (a datetime field that you update on each access) is > the most efficient way of doing this. > > -Nick Johnson > > > > On Tue, Dec 1, 2009 at 7:22 PM, mscwd01 <mscw...@gmail.com> wrote: > > Hey, > > > I wish to retrieve a single datastore object such that the object > > which has NOT been retrieved for the longest amount of time is > > returned. > > > I.e. If object A was last retrieved 5 days ago, object B 2 days ago > > and object C 12 days ago the order of retrieval would be: > > > Object B (first db call) -> Object A (second db call), Object C (third > > db call) > > > I could simply assign a datetime field to each object and update this > > time during each retrieval, then organise all the objects by this > > field upon each database query. However, if I were to have tens of > > thousands of objects would this be an efficient way of achieving this? > > > I'd be interested to know if there may be a better way of doing it. > > > Many thanks > > > -- > > > 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-appeng...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine?hl=en. > > -- > Nick Johnson, Developer Programs Engineer, App Engine > Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: > 368047
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