Hi Prateek,
  The data in one namespace won't impact anything in another
namespace.  All indexes for all applications are stored in within a
single 'bigtable.'  Check out some of the datastore articles (or
google talks) on the datastore.
    http://code.google.com/appengine/articles/storage_breakdown.html



Robert





On Tue, May 10, 2011 at 00:41, someone1 <someo...@gmail.com> wrote:
> Thanks for the reply, however, how are the indexes handled in the
> backend? Is it just one index shared across the namespaces or does
> each namespace get its own index for the custom indexes I define? I
> understand as far as billing is concerned, it'll appear as a single
> index and I also understand I cannot query across all namespaces at
> once, but my question is more geared towards how much the data in one
> namespace will effect the data in another namespace using the same
> index.
>
> Thanks,
> Prateek
>
> On May 8, 11:36 pm, Robert Kluin <robert.kl...@gmail.com> wrote:
>> Hi Prateek,
>>   Your app gets 200 indexes.  You can use as many namespaces as you'd
>> like, any custom indexes defined are available to each namespace.
>> Note that you can not query across namespaces, however.
>>
>> Robert
>>
>>
>>
>>
>>
>>
>>
>> On Sun, May 8, 2011 at 12:29, someone1 <someo...@gmail.com> wrote:
>> > Hello,
>>
>> > Are indexes between different namespaces shared or is a new index used
>> > for each namespace? If it is the latter, then is the 200 maximum set
>> > for the App or each namespace, or do separate indexes exists for each
>> > namespace, but I am only billed for unique indexes?
>>
>> > Thanks,
>> > Prateek
>>
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