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Querying Google Cloud datastore with ancestor not returning anything


Querying Google Cloud datastore with ancestor not returning anything

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Querying Google Cloud datastore with ancestor not returning anything
Tag : python , By : 03B
Date : November 26 2020, 03:01 PM

This might help you In order to satisfy certain queries Cloud Datastore needs to build indexes. The details are defined here: https://cloud.google.com/datastore/docs/concepts/indexes
Defining the suggested index should make the query in question work.

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HAS ANCESTOR and HAS DESCENDANT clauses in google cloud datastore


Tag : development , By : Priya
Date : March 29 2020, 07:55 AM
wish of those help I'm studying the Google Cloud Datastore GQL grammar - specifically the HAS ANCESTOR and HAS DESCENDANT comparison operators. , These two GQL queries should produce identical results:
SELECT * FROM Person WHERE __key__ HAS ANCESTOR KEY('Person', 'Amy')
SELECT * FROM Person WHERE KEY('Person', 'Amy') HAS DESCENDANT __key__

Does supplying an ancestor improve filter queries performance in objectify / google cloud datastore?


Tag : development , By : quasarkitten
Date : March 29 2020, 07:55 AM
should help you out Including an ancestor should not significantly affect query performance (and as you note, each option requires a different index).
The more important consideration when deciding to use ancestor queries is whether you require strongly consistent query results. If you do, you'll need to group your entities into entity groups and use an ancestor query (#1 in your example).

Google Cloud Datastore: how to query all distinct Parent/Ancestor?


Tag : google-cloud-platfor , By : Myatus
Date : March 29 2020, 07:55 AM
like below fixes the issue You should note that the datastore ancestry is not established at the entity kind level: you can't really say that the Order kind has a User kind as ancestor.
The ancestry is established at the entity level - an entity has an ancestor only if one is specified at the entity creation level, otherwise it doesn't have one. Also it doesn't matter what kind the ancestor entity is, different entities of the same kind can have ancestors of different kinds or no ancestors at all.

Google Datastore ancestor query returning data too far down


Tag : google-cloud-platfor , By : Simon Capewell
Date : March 29 2020, 07:55 AM
This might help you Regarding the question on write limitation, if you are using the Cloud Firestore in Datastore mode, then the limitation of 1 write per second is by entity and not entity group.
See https://cloud.google.com/datastore/docs/firestore-or-datastore

Delete Ancestor Tree in Google Cloud Datastore


Tag : development , By : Jet Thompson
Date : March 29 2020, 07:55 AM
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