Fetching the results of async queries

[gwstuff]

Hi,

I would like to run a set of datastore queries asynchronously so that they execute in parallel. Unfortunately, the synchronous and async versions of my code produce different results. It seems that the async version does not finish by the time I actually need the results. At that point, I need to call 'get_results' but am unsure how to since this is not documented.

Here are the two fragments of code:

Sync (works)

                note_iter = n.children.fetch(MAX_NOTES)

                ...

                for n in note_iter:

                    consume(n)

ASync (fewer results)

  

                note_iter = n.children.run()

                ...

                for n in note_iter:

                    consume(n)

Any insight or pointers would be much appreciated.

[Amy Unruh]

hi,

Query.run() only pre-fetches asynchronously as time allows; when you access the iterator it fetches results as needed.

You should not see fewer results using run()-- and I was not able to reproduce your issue with a test app.

You might double check that your queries are the same in both cases.

 -Amy

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