Hi all, I constructed a one-to-many relationship using JDO just like described on the gae homepage. I understand that in this way the parent and its children are contained inside the same entity group. I also understand that this means that these objects are allowed to be modified inside a single transaction.
However I would like to know if there are any further advantages. Especially I would like to know if I need to specify a datastore index for the parent key in order to perform an ancestor query. Another question of mine is if ancestor queries are faster than "normal" queries where the membership of the child objects is defined by a variable (e.g. a string) and not by a relationship. Thank you very much Jay -- 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.
