Hi Ben,
On Sun, Oct 18, 2009 at 10:14 PM, bsb <[email protected]> wrote:
>
> I'm struggling a bit with this. I'm trying to bulk dump an entity in
> my datastore. I get the following info:
>
> [INFO ] Model_mobileapp: No descending index on __key__, performing
> serial download
>
> Now, I added the following index:
> - kind: Model_mobileapp
> properties:
> - name: __key__
> direction: desc
> - name: appId
>
The problem here is the additional field. The index has to exactly match the
query; if the query doesn't have an 'appId' filter or sort, this index
cannot be used.
-Nick Johnson
>
> The index built fine and is serving. However, I still don't get
> parallel fetching. Why is that? Does that have to do with me using
> AppEnginePatch for Django, which makes a bit of a mess out of the
> datastore? The class to this entity is actually called MobileApp in
> module Model (ie. Model.MobileApp). However, doing a fetch on that
> entity name works fine:
>
> q = db.GqlQuery("SELECT * FROM Model_mobileapp").fetch(10)
>
> gives results. Any suggestions on how this can be fixed? GAE-style
> indexes are still a bit of a mystery to me, I must admit...
>
> TIA,
> Ben
>
> >
>
--
Nick Johnson, Developer Programs Engineer, App Engine
Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number:
368047
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