It should be workable using the (or something like the) "low-level"
interface -- just return the result as a dict.








On Fri, Dec 17, 2010 at 22:41, David Mora <dla.m...@gmail.com> wrote:
> I think the problem is at the underlaying appengine.db implementation
> (which acts as an ORM)
>
> that property belongs to an entity, you will have to have away to know
> when that model is not fully loaded.
>
> Common ORM/Data Gateways problems.
>
> (PS: but yeah, performance wise it would be great)
>
> On 17 December 2010 21:22, Robert Kluin <robert.kl...@gmail.com> wrote:
>> That is something I have wondered about too Keakon.  Actually, I
>> thought there was already a feature request for it but don't see it
>> now.  It would be really cool to be able to only get the data from the
>> index returned, and not the entire entity.
>>
>> Anyway, if you make an feature request (issue) for this be sure post
>> the link so we can star it.
>>
>>
>>
>> Robert
>>
>>
>>
>>
>>
>> On Fri, Dec 17, 2010 at 22:15, 风笑雪 <kea...@gmail.com> wrote:
>>> As I know, there are 4 bigtables used for store indexes.
>>> So when I try to fetch a single property or a tuple of (single property,
>>> key), datastore can only scan the index table, no need to fetch
>>> the corresponding entities.
>>> That would also be useful when I fetch several properties via composite
>>> index or even merge-join.
>>> Is my thought right?
>>>
>>> ----------
>>> keakon
>>> My blog(Chinese): www.keakon.net
>>> Blog source code: https://bitbucket.org/keakon/doodle/
>>>
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>
>
>
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