Azure Cosmos DB

Have feedback for Azure Cosmos DB product? Submit your idea here or upvote other ideas. All feedback is monitored and reviewed by the Azure Cosmos DB team. 

This site is for feature suggestions only. For technical questions or issues, please submit them to StackOverflow,where we and the community can better help you.

Please use the following categories when submitting your idea.

SQL API: Query language features, syntax using SQL API, indexing, any other core features in Azure Cosmos DB.

Gremlin API: Graph features and capabilities using Gremlin API.

Cassandra API: Features and capabilities using Cassandra API.

MongoDB API: Features and capabilities using MongoDB API.

Table API: Features and capabilities using Table API.

Etcd API: Features related to using etcd as a configuration store for Kubernetes.

Built-in Apache Spark: Features related to built-in Apache Spark in Azure Cosmos DB.

Built-in Notebooks: Features related to built-in Notebooks in Azure Cosmos DB.

SDK: Features related to Azure Cosmos DB SDKs for SQL API.

Change Feed: Features related to Change Feed.

Management: All management features, backup/restore,monitoring, ARM, PowerShell and CLI.

Portal: All features for Azure Portal and Cosmos DB Explorer.

Emulator: Features related to the Azure Cosmos Emulator.

Other: Features not related to any other category.

Security:
Authentication, authorization,permissions and encryption features.

Monitoring:
Metrics, monitoring, alerts,and diagnostics features.

Server-side: Stored procedures, Triggers,and User-Defined Functions.
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  1. To be upto date version of TinkerPop in Azure Cosmos Graph DB

    Apache TinkerPop Graph released v3.4.2 on 28th May 2019, but it seems that Azure Cosmos DB graph is still supporting the v3.2 which was released a year back from today. Azure Cosmos Graph DB should be upto date to support the latest version of Apache TinkerPop Graph.

    TinkerPop v3.4 supports various features like having support of min and max operations on comparable like string.

    21 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →

    Hello and thanks for your request. We support 3.4 from a driver and connectivity perspective but there are a number of features we haven’t implemented such as min and max on non-decimal values.

    These are currently on our backlog to implement so will mark this as unplanned for now which will keep this request open. When this moves off of our backlog we will mark this as planned and update you here.

    Thank you.

  2. Support Gremlin Bytecode to enable the fluent API of Gremlin.NET

    Azure Cosmos DB Graph API doesn't support Gremlin Bytecode. Therefor it is not possible to use the fluent traversal API of Gremlin.NET.

    Within the Azure Cosmos DB Graph .NET API (https://docs.microsoft.com/en-us/azure/cosmos-db/graph-sdk-dotnet) it is recommended to use Gremlin.NET. So it would be really nice if all features of Gremlin.NET would be supported.

    See also the idea of a "better type-safe APIs fro Gremlin" (https://feedback.azure.com/forums/263030-azure-cosmos-db/suggestions/19340761-better-type-safe-apis-for-gremlin) within the Graph API feedback.

    653 votes
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    31 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  3. [Gremlin] Paging Support

    Please add paging support for Cosmos Graph DB via the Gremlin API. Traversing the whole graph for a large set of vertices can be very expensive. Paging would allow better efficiency when targeting a subset of a large set of vertices.

    6 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  4. Use a domain ontology (RDF/OWL) as a scheme in Graph DB?

    In Cosmos Graph DB, I would like to be able to import a domain ontology (RDF/OWL) as a scheme to model data.

    10 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  5. DATA QUALITY: Please support graph transactions.

    Today, if a traversal fails at step n of m, figuring out what state the graph is in is quite a chore. As a result, all data modification traversals have to be written to support retries. Unfortunately, if the retrying component fails, the network fails, or something else fails, which prevents retry, the graph is left in an unknown state.

    2 votes
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    1 comment  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →

    Hello and thank you for your suggestion.

    While Cosmos DB provides support for transactions within a partition, we do not have support multi-step, cross-partition or distributed transactions.

    We recommend to customers requiring transactions across multi-step operations to coordinate these using the consistency model and optimistic concurrency control.

    Thank you for your suggestion.

  6. DATA QUALITY: Please allow for properties to be set using a subquery

    The use case here is incrementing the reply count property on a post vertex. To increment, we have to fetch the post vertex, increment the reply count property within our API, then update the graph with the new property value. Unfortunately, if multiple users reply simultaneously using different instances of our API, the reply count value is set incorrectly. Sending a query to the database and letting the server make the updates by calculating the value would address the issue.

    3 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  7. Please add the none step.

    When we create or update vertices and edges, we don't need the results from the traversal. Having the results filtered out server-side saves resources.

    3 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  8. Integrate existing Janus GraphDB application with Azure Cosmos DB API for Gremlin and Open Service Broker for Azure

    I read a post on how to Integrate existing MongoDB application with Azure Cosmos DB API for MongoDB and Open Service Broker for Azure, https://docs.microsoft.com/en-us/azure/aks/use-cosmosdb-osba-mongo-app, and I start to think is it possible same technique could be adopt to janus graph->COSMOSDB graph?

    1 vote
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  9. Improve range() step costs

    Graph API is nice, however in its current state it is unusable for large data sets due to high RU costs.
    We are trying to implement paging for retrieving large amounts of data, however RU cost is unacceptable. Query "g.V().range(0,100)" costs 63.11 RU, however "g.V().range(2000,2100)" costs 338.06 RU even though it is same amount of data. Higher values are even more expensive meaning it's impossible to retrieve high amount of data without scaling up throughput.

    34 votes
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    3 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  10. Allow shortestPath and sum steps

    I want to make traversals finding the shortest path between one or more vertices. I need to be able to use shortestPath step or at least have sum step to sum up the edge weights to accomplish this.

    9 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  11. 1 vote
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  12. Support multi-properties in GraphBulkExecutor.

    Gremlin API, supports:
    Multiple properties (multi-properties): a vertex(edge) property key can have multiple values. For example, a vertex can have multiple "name" properties.

    Properties on properties (meta-properties): a vertex(edge) property can have properties (i.e. a vertex property can have key/value data associated with it).

    So, now it's impossible to upload data with such properties with GraphBulkExecutor.

    6 votes
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    0 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  13. Microsoft join and support GQL

    I think it would be a great benefit for Cosmos DB to support the new movement to get to a single Graph Query Language. Microsoft joining this movement might help in rapid evolution and acceptance of such a language.

    Taken from https://neo4j.com/blog/time-for-single-property-graph-query-language/:

    The time has come to create a single, unified property graph query language.

    Different languages for different products help no one. We’ve heard from the graph community that a common query language would be powerful: more developers with transferable expertise; portable queries; solutions that leverage multiple graph options; and less vendor lock-in.

    One language, one skill set.

    56 votes
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    1 comment  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  14. CosmosDB Graph API should support array types inside Gremlin properties

    Currently, the CosmosDB Graph API does not support array types inside of Gremlin properties. This forces users to rebuild their graph models to match what the Graph API requires. The CosmosDB Graph API should support array types inside of Gremlin properties.

    31 votes
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    3 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  15. Gremlin Graph: Add support for array values in group() and groupCount()

    You should be able to group by an array of values. it is perfectly valid to do a group() or groupCount() like so:

    g.V().groupCount().by(values('id','name').fold())

    Other Graphs implementing Gremlin will give you a result, while CosmosDB fails with:

    "Unexpected Error: Cannot resolve object to a primitive value."

    13 votes
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    1 comment  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  16. Add support for sack

    Currently GraphAPI has almost no support for doing operations while traversing or listing vertices, like combining vertex properties with weights (edge property) as you traverse. Math is not supported, and often times an alternative would be to use a sack, but that is also not supported. So there is really no workaround.

    10 votes
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    1 comment  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  17. Support for Graph API in Data Migration tool

    Looking for a way to do backup/restore or manual export/import of a Cosmos DB graph using Graph API - or equivalent.
    I want to be able to restore state of a database while developing and found that Data Migration tool can do what I want, but does not support Graph API.

    61 votes
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    2 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  18. Support Cypher as a query language for Graph data

    Add Cyhper (see http://www.opencypher.org/) as a language to query graph databases. Cypher is a human readable query languages to easily access a graph database.

    495 votes
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    10 comments  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  19. Support Math functions in the graph

    simple arthimatic (like computing %s) have to be done after extracting the data. pl support math step

    28 votes
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    1 comment  ·  Gremlin API  ·  Flag idea as inappropriate…  ·  Admin →
  20. Document how to make & use Icon Sets in the Graph Data Explorer

    You have a Gremlin Graph Intro video that includes use an icon set (the video shows an icon set for Marvel characters) - but there is very little info on how you can create this icon set - i.e. the video shows a vertice that represents the icon set, but it isn't clear what properties on the vertice do what - and also what encoding is used for the icon picture content.

    14 votes
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