Thanks Ikai, But what is the difference between empty values and None when you define a Model in GAE? Because you just define a property without a default value and when you create an instance of that entity, the value will be None isn't it?
On Feb 24, 1:36 pm, "Ikai L (Google)" <[email protected]> wrote: > That *should* create an index. We index null values, but we don't index > empty values. That is, if you have an entity: > > Animal { > String name; > int age; > > } > > And create 100 entities, then add: > > Animal { > String name; > int age; > String nickname; > > } > > The 100 entities that were created will have an EMPTY nickname and will not > be queryable by this attribute, but Animals created after the change that > populate this field will be indexable. > > On Tue, Feb 23, 2010 at 9:58 PM, Jairo Vasquez Moreno < > > > > > > [email protected]> wrote: > > Hi Nick, > > > I know every write to Datastore creates an index entry for each indexable > > value. But when a value is not set (None) will an index entry be created? > > > My doubt is, is it better to let a property None and then filter by > > property=None or set the with something e.g property="-1" and then filter by > > property="-1". Because I'm leaving a property as None and then doing some > > stuff with those entity with None but this is generating more > > DeadLineExcedeed errors as expected (even decreasing the number of entities > > to fetch) so I think maybe the filter is getting to much time and I don't > > know what else could be. > > > Thanks in advance. > > > -- > > Jairo Vasquez Moreno > > Mentez Developer > >www.mentez.com > > Medellin - Colombia > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<google-appengine%2Bunsubscrib > > [email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine?hl=en. > > -- > Ikai Lan > Developer Programs Engineer, Google App > Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. 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.
