Hi Jason, maybe my question is a trivial for you but still: how melodramatically should I detect when the value is NOT set? As you already explained i can't use ==null. What should I use instead?
Sincerely, Alex On Oct 21, 9:36 pm, "Jason (Google)" <[email protected]> wrote: > No. If an entity does not have a value set for a particular property (null > IS a value, different from <missing>), then it won't appear in any query > results involving that property. You'll need to continue sifting through > every entity to see if a value is set, and if not, setting it directly. > - Jason > > On Mon, Oct 19, 2009 at 6:09 AM, Prashant <[email protected]> wrote: > > hi, > > > i added a new column to my data table, as it is newly added it is showing > > <missing> as column values in datastore. now i want to initialize those > > <missing> values to some value, say 0. how do i do that programmatically? i > > tried using "column == null" as filter but that doesn't work. > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" 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-java?hl=en -~----------~----~----~----~------~----~------~--~---
