OK thanks Ikai, I was trying to avoid that but see no problem with it.
Ben On Sep 13, 5:15 pm, "Ikai Lan (Google)" <ikai.l+gro...@google.com> wrote: > You can't. Empty properties are the equivalent of unindexed properties. > You'll need to iterate over all the Entities in your datastore and update > them. The Mapper API is a very good tool for this: > > http://code.google.com/p/appengine-mapreduce/ > > > > On Mon, Sep 13, 2010 at 12:20 PM, Benjamin <bsaut...@gmail.com> wrote: > > Brain freeze guys - > > > I added a property to my object and persisted in the datastore. The > > older object have now have a column that when viewed in the control > > panel have a value of <missing>. I need to query those objects so i > > can update them - propname == null , propname == "" - I can't seem > > to find the right syntax for this. > > > -- > > 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 > > google-appengine-j...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2B > > unsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
