Database

  1. Collection Comments

    I would like the ability to attach comments to a collection so that other people using the data can get some understand of context or important Readme/FAQ that I would need to share.

    2 votes

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  2. Performance problem with compound index using doubles, with range filtering

    It looks like there may be a problem when using doubles in a compound index and using range-test filters against all of them in a query.
    The problem we see from the explain plans is that far more keys are being examined that there should be and this leads to poor performance.
    If we switch to using a similar setup but with integers instead, we don’t see the problem.

    See the second part of this ticket for full details

    https://support.mongodb.com/case/00659614

    We have a document that looks like this –

    {

    "_id" : ObjectId("5e2ab24eca314f10b486d827"),
    
    "attributes" : [
    {
    "attributeCode" : "attributes_itemsGeometry",
    2 votes

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  3. Too many keys in 2dsphere index when used on geoJson within arrays

    Mongo support have asked me to raise this bug as an improvement idea because they see it as an edge case.
    The issue is here and includes more details:

    https://support.mongodb.com/case/00659614

    In summary, if you have a geoJson sub document that sits within an array, and you index it using the 2dspehere index, you get keys duplicated for every element in the array.

    For example, if you have geoJson that represents a big 4,500 vertex polygon, and you put it within an array element, if the array has only one element I see 20 keys generated, which is good. But if…

    2 votes

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  4. Private Endpoint Tags / Custom Names

    Private Endpoint names are not user friendly, they are just Amazon resource ID's. If you have multiple Private Endpoints for a project this makes it difficult to select the right one. It would be nice if these endpoints could be tagged or have custom names.

    2 votes

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  5. Upgrade Advisor

    Similar to Microsoft's SQL Server Upgrade Advisor application, generate a report (from Ops Manager for example) identifying issues to fix before or after an upgrade from one major version to another.

    2 votes

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  6. delete logs number of days old

    In the options for Mongo DB Log Settings, there is only
    Max Percent of Disk
    Total Number of files

    A new option for
    Number of Days to keep

    Would be useful

    1 vote

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  7. Add expression indexes

    An expression index is one where the value being indexed is the result of an expression, like lower casing a string.

    http://en.wikipedia.org/wiki/Expression_index
    http://www.postgresql.org/docs/8.1/static/indexes-expressional.html

    1 vote

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  8. 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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  9. Data Replication from one MongoDB Cluster to another MongoDB Cluster

    Create an option for the user to replicate data from one MongoDB Cluster to another MongoDB Cluster inside the account. We don't need to migrate data, I need replicate data from an Production Cluster to an Dev/Test Cluster. Thanks.

    1 vote

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  10. 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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  11. 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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  12. Creation of Custom Views

    SQL based option to create view using multiple collections or databases

    1 vote

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  13. Make IAM database user authentication compatible with AWS SSO

    We are in the process of implementing AWS SSO across our Organisation and wanted to tie this in with mongodb-aws for database authentication.
    Unfortunately we have been informed the 2 services are not compatible.

    This would be a really useful add on to improve management of our systems.

    1 vote

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  14. 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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  15. 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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  16. 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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  17. 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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  18. 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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  19. 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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  20. 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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