The extra space likely comes from indexes. You can check your indexes in your "Indexes" tab. For a better understanding of how indexes work, here is a good session from Google I/O that discusses the topic:
https://sites.google.com/site/io/under-the-covers-of-the-google-app-engine-datastore On Wed, Nov 25, 2009 at 2:01 PM, Prashant <antsh...@gmail.com> wrote: > one more thing I want to ask, earlier I had *Group (String)* instead of > *Groups > (List)* , after replacing *Group *by *Groups* my DataStore usage went 13 > times of what it was earlier. of course I added more groups per contact, > take an average of 3 groups per contact. why using list makes an entity to > take 12 times more DataStore space? is it not a good practice to use list > property ? > > -- > 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%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > -- Ikai Lan Developer Programs Engineer, Google App Engine -- 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.
