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  1. Provide global collection-aggregated latency stats

    The global latency stats Server Status section currently aggregates all the latency information known to the server.

    We have a need for the same information except aggregated by collection.

    The actual command: db.serverStatus().opLatencies.

    1 vote

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  2. $lookup with the option to return only the first element

    Often I have a $lookup and the next stage is a $addFields { $first: "" }} because I know the lookup will return only one entry. It'd be nice to have this option directly in the lookup, so it'd return the first object instead of an array. Thanks!

    1 vote

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  3. When using EA, auto update the list of cluster node members similar to what happens within Atlas

    As we add new nodes, it requires us to update the URI. Would like a way to have this automatically update.

    1 vote

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  4. Would like the ability to restore a single zone based shard

    If the idea that data is stored within a region (via zone based sharding) and they are "just" replica sets, why can't we just restore a single shard? Right now we have to restore the entire cluster.

    1 vote

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  5. Create and use db links in Mongodb

    Allow Mongodb to access an external database for:
    1.select identifiers on an external rdbms (ex: postgres, sqls, oracle, ...)
    2.use these identifiers to perform aggregations in Mongodb

    Currently, it is necessary to use a third-party tool that connects to several data sources to perform these actions.
    The idea is to be able to perform these "joins" only in Mongodb CLI.

    Regards,
    Jerome

    1 vote

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  6. Add build for Linux Alpine and Debian

    A build in ARM support (Apple M1) for Alpine Linux (or Debian) is needed to run the mongocryptd process. Currently the official node docker images are available only in Alpine and Debian.

    1 vote

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  7. Deny Network Access to MongoDB Cluster

    To improve network security, please create an option to Deny specific Network Adresses to MongoDB Cluster.

    1 vote

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  8. Old and New values in change tracking

    Change streams currently return only the new version of the documents.

    If there were an option that could be set on the collection for the change streams to also return the old version of the document, it would simplify any business logic that requires the old version.

    1 vote

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    started  ·  1 comment  ·  Change Streams  ·  Flag idea as inappropriate…  ·  Admin →

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  9. Support split documents on disk

    As an application's functionality grows, if kept unchecked it is easy for average document sizes to grow simultaneously.

    Large documents can have a significant impact on the performance of MongoDB. However, often the application doesn't actually need the entire document to service a request. Likewise, often queries are sent to MongoDB with a projection, excluding substantial (in terms of byte size) parts of the document.

    MongoDB has no ability to optimise these projections (except for covered queries which are not always practical).

    MongoDB should provide the ability to specify a "split" in a document such that the query planner can…

    1 vote

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  10. Creation of Custom Views

    SQL based option to create view using multiple collections or databases

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  11. Ability to create the resume token based on oplog item

    CHoose an oplog event to set the resume token for, instead of needing to run the change stream for system to create a resume token

    Why: Concerns about many stream re-reading a full oplog if failure before finding first event

    1 vote

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  12. VPC between ATLAS/MongoDB/AWS and Heroku/AWS

    Would be a great great feature if we can create a VPC between ATLAS/MongoDB/AWS and Heroku/AWS.
    Thanks.
    Adailton Silva

    1 vote

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  13. Cloning User/Roles along with Database

    When cloning a Database it would be helpful if User/Roles could be cloned directly as well and carried over.

    1 vote

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  14. Tag-aware permissions to control access to analytics nodes

    MongoDB has the great future of Workload Isolation based on node tags: we can add nodes tagged for analytics or reporting and then configure the same tag for this type of connections so that they do not interfere with the main operational workload.

    But it is the responsibility of the BI/Data Scientist/Analyst to properly configure the connection: it cannot be enforced in a centralised way. It would be great if MongoDB permissions could be "tag aware", and allow access for a particular user only to some nodes of the cluster.

    1 vote

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  15. Pass document field to $loolup.from and $lookup.as

    Suppose I have collection of documents { entityId, entity }, where entity is names of other collections I would like to make aggregation with lookup and be able to pass entity value to $lookup from and as

    db.collection.aggregation([{ $lookup: { from: '$entity', let: { entityId: '$entityId' }, pipeline: [{ $match: { $expr: { $eq: ['$_id', '$$entityId'] } } }], as: '$entity' } }])

    As of mongo v4.4.4 that seems not working.

    1 vote

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  16. Have a role that allows that user to control the schema of a collection

    As a DBA or Data Architect, I want to be able to enforce data governance policies like schema control. Users of MongoDB cannot change the schema however DBA or named individuals have the ability to change the schema.

    1 vote

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  17. 2dindex

    geoIntersect queries on spherical geometries are not adapted to our use case. Our need is to retrieve a list of tiles intersecting a given area of interest (AOI) in a flat 2d geometry.

    Classical geo-spatial databases (PostGIS and Oracle Spatial) support this kind of approach at no extra cost and we would expect the same from MongoDB.

    In MongoDB , using a 2dsphere index forces us to implement a workaround adding an artificial margin to the AOI and making a post-processing to remove false positives. See attached slides for explanations.

    Best Regards

    1 vote

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  18. Diacritic insensitive contains search on a single field

    I would like to perform a "contains" query on a single text field in a case insensitive and diacritic insensitive way. I would like the query to have the performance of the field being in a text index by itself (assuming that this gives the maximum speed).

    It is usually the case that the text index already exists for multiple fields. This means that a text search then has to be combined with a complicated (to make it diacritic insensitive) regex expression to find the correct results.

    https://developer.mongodb.com/community/forums/t/query-for-field-containing-a-string-case-in-sensitive-and-diacritic-in-sensitive/14814/2/

    1 vote

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  19. updateMany limit

    When porting an application backend from an RDBMS to MongoDB, we've spoken to two people who've are looking for a way to specify a limit on the number of documents in .updateMany(). I understand the behavior cannot be defined on a sharded cluster, but if we had a way to do this on an unsharded collection, that would help when dealing with these teams.

    1 vote

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  20. Add an option for $addToSet to use a specific field in the array for uniqueness

    Currently, the $addToSet for upserting to an array checks for object equality (when the array elements are objects). We sometimes need to check for uniqueness based on a specific field of the object rather than the object as a whole, and the only way to do this is to force single-threaded operation and to use $pull and $push.

    If there is a way to specify the field to check uniqueness for the $addToSet , we would be able to perform writes normally.

    1 vote

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