This is a link to what you need for *.yaml and a very simple demo, in the def (in this example lower_case_posts(entity)) you put the code. Mapreduce runs (sometimes 20 parallel sessions) thru all entities (no filter possible yet). First a check if the entity is what you need and then your code. Mapreduce is now in the standard library. http://code.google.com/p/appengine-mapreduce/source/browse/#svn/trunk/python/demo http://code.google.com/p/appengine-mapreduce/wiki/UserGuidePython
(your kind) class Post(db.Model): name = db.StringProperty(default="") message = db.TextProperty(default="") time = db.DateTimeProperty(auto_now_add=True) def lower_case_posts(entity): entity.message = entity.message.lower() yield db_op.Put(entity) def upper_case_posts(entity): entity.message = entity.message.upper() yield db_op.Put(entity) gr wim On Sat, Dec 4, 2010 at 1:34 PM, nick <[email protected]> wrote: > wow. nice infos thanks! :-) > > if i had millions of log entries stored in one table. (l_entry: title, > content, date, host) > > and now i want to have all log entries where host="myhost" (as a json > response), how would you design the query? (this would be slow, doenst it?) > > (excuse my bad english :-) ) > > > thx and greets > nick > > -- > 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%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- gr Wim den Ouden Gae based E-business <https://e-comm.appspot.com/> (web) apps Free open source <http://code.google.com/p/relat/> Gae developer tips <http://code.google.com/p/relat/wiki/gaetips> -- 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.
