ValueError: For an array_value, subvalues must either all be indexed or all excluded from indexes.

Getting ValueError: For an array_value, subvalues must either all be indexed or all excluded from indexes. error when querying entities with empty arrays.

Edit: I tried getting around this with projection queries where possible but I need to modify the entities after fetching them, which you can’t do with the results of a projection query. So this is a pretty big issue as there is no way around it.

[alercunha]

I’ve forked the project just to do merge from upstream/master to the PR branch that contains this fix. You can clone my branch and install it manually if you like.

So you would have to do:

$ git clone https://github.com/alercunha/google-cloud-python/
$ cd google-cloud-python
$ git checkout datastore-issue-3152
$ cd datastore && python setup.py install

[yahyamortassim]

Still having this error with google-cloud-datastore==1.7.3 when trying to query a key that has the format: [{"key1":"","key2":"value2","key3":[]}] via

query = datastore_client.query(kind='KIND')
query.add_filter('name', '=', 'EXAMPLE')
res = list(query.fetch())