Suppose, In my website, I ask users to input some string. A user can input string multiple times. Whenever any user inputs a string, I log it in the database along with the time. Many strings can be same, even though inputted by different users. In the home page, I need to give the interface such that any user can query for top n (say 50) strings in any time period (say 10 Jan 2012 to 30 Jan 2012). If it was SQL, I could have written query like:
select string, count(*) from userStrings where day >= d1 and day <= d2 group by string order by count(*) desc limit n How do I solve it in GAE environment? For each such user query, I can't process the record at query time - there can be millions of records. I am using JDO. My obvious goal is to minimize the app engine cost : CPU + data. Thanks, -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/-LDkbiRUoQsJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
