See also the docs on fetch(limit, offset):
http://code.google.com/appengine/docs/datastore/queryclass.html#Query_fetch

In particular: "The query has performance characteristics that correspond
linearly with the offset amount plus the limit."

-- Dan

On Sun, Nov 2, 2008 at 8:23 PM, David Symonds <[EMAIL PROTECTED]> wrote:

>
> On Sun, Nov 2, 2008 at 11:58 AM, monmonja <[EMAIL PROTECTED]> wrote:
>
> > Now i don't know if this is the best way of doing it but it does not
> > require you to do some writing on datastore and it uses memcache, if
> > there is a better way of doing this please stress out. Thanks. :)
>
> That's a terrible way of doing this: (a) possibly inaccurate, and (b)
> unscalable. The correct way to implement such a global counter is via
> something like a sharded counter that you increment each time you add
> an entity and decrement each time you remove an entity.
>
>
> Dave.
>
> >
>

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