Please check this out. You should be able to do queries returning greater than 1000 rows. Obviously we have to work with google bigtable constraints of 1000 rows etc. But our product does incremental queries to get you desired results.
http://www.cloud2db.com On Thu, Dec 17, 2009 at 6:12 PM, king <[email protected]> wrote: > can anyone shine some lights on when the java datastore export will be > available? > > On Dec 2, 11:19 am, king <[email protected]> wrote: > > Jason, do you have a timeline for when: > > 1. the cursor feature will be available? > > 2. the data download feature be available for JAVA (not Python). > > > > On Oct 21, 10:54 am, "Jason (Google)" <[email protected]> wrote: > > > > > > > > > The query restrictions are an artifact of the way App > Engine'sdatastoreis > > > constructed, which makes certain operations (e.g. queries and reads) > very > > > fast and scalable but does limit the types of queries you can make, > though > > > you can typically get around these restrictions by re-thinking your > model a > > > bit. > > > > > We are working on adding built-in cursor support for easier paging > through > > > entities and have just added adatastorestatistics API for, among other > > > things, getting the total entity count, even if it exceeds 1,000. More > > > details here: > > > > >http://code.google.com/appengine/docs/java/datastore/stats.html > > > > > And we also have a dataexportutility included with the SDK to make it > > > easier for you to back up or even move off of App Engine should you > choose > > > to, and we're continuing to look at ways of making App Engine, > particularly > > > thedatastorecomponent, easier to use. > > > > >http://code.google.com/appengine/docs/python/tools/uploadingdata.html. > .. > > > > > - Jason > > > > > On Mon, Oct 19, 2009 at 1:53 PM, vetch <[email protected]> wrote: > > > > > > On 6 Paź, 10:03, "Jason (Google)" <[email protected]> wrote: > > > > > * Because App Engine queries can only return up to 1,000 results, > > > > > count(this) will never return above 1,000, even if you have more > than > > > > 1,000 > > > > > entities, so bear this in mind. > > > > > > I'm deeply shocked. This works like some black hole. > > > > > > You put your data there simply, but can't get them back that simply. > > > > > > In connection with restricions (inequality property filter), it is > > > > even harder to get anything more complex. > > > > > > BiGAppEngine disappointment. > > -- > > 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 > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > > -- 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 [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-java?hl=en.
