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On Sun, Sep 12, 2010 at 12:52 PM, HalgurD.99 <[email protected]>wrote: > > nicht mir e-mail schiken.mehr nicht > > 2010/9/12 gops <[email protected]> > >> It is possible , and speed will be nice. >> >> two points : check for exploding index. if you have 20 tags in one >> entity and if you query for four or five tags, you may hit this >> limit. >> >> 2 : for millions of entitty, you might want to use shorter name for >> entity property, it can save lots of space. >> >> On Sep 10, 3:38 pm, Smrchy <[email protected]> wrote: >> > Hi, >> > >> > we are in the planning phase of an app we would like to do with App >> Engine. >> > >> > The app will have millions of data records / entities like this: >> > >> > ID (String) >> > Name (String) >> > Title (String) >> > Description (String) >> > CreatedDate (Datetime) >> > Tags (StringListProperty) (Example: music, sport, travel, New York, USA, >> > 2010) >> > >> > We need the following search options: >> > >> > - by a single tag (Example: 'sport') >> > - by 2+ tags (Example: 'sport' and 'USA' and '2010') >> > >> > All searches should return max. 200 records and be ordered by >> CreatedDate in >> > reverse order. >> > It should be possible to limit the searched records by the CreatedDate >> (e.g. >> > >> > > 2009/06/01 and < 2009/09/01) >> > >> > My question is this: Can this be done efficiently with the Datastore. By >> > efficiently i mean the response times should be below 1-2 seconds, even >> with >> > millions of rows. >> > >> > Does anyone have experience with this scenario? >> > >> > Do you have and hints what we should look for or avoid? >> > >> > Thanks for your help >> > Patrick >> >> -- >> 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. >> >> > -- > 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. > -- 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.
