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Allow changing compression of an existing collection

I'd like to switch my database from Snappy to Zstd compression. Currently, it doesn't seem that it is possible to change the compression of an existing collection. It would be nice if there were a way to do this, even if (for example) it requi...

Guest over 3 years ago in Storage & Transactions 0 Submitted

3 VOTE

Support newer versions of JSON Schema in validation to be able to use the "if", "then", "else" and "const" keywords

Currently there is no way to have conditional schema validators because you can't use the "const" keyword in a "oneOf" or the "if", "then" and "else" keywords.

Guest over 3 years ago in Database 0 Submitted

2 VOTE

Tool for score data model

It would be great to have a tool which can scores a data model from a specific database. I mean, I could allows this tool to scan a database model and score this data model based on best practices, patterns and anti patterns. It could also generat...

Guest about 2 years ago in Data Modeling & Indexing 0 Submitted

4 VOTE

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 ad...

Guest over 4 years ago in Database 3 Submitted

3 VOTE

Support expressions in $densify range bounds

The $densify aggregation pipeline stage seems unable to evaluate range bounds expressions, requiring the range bounds to be constant. See the following example (the collection testcoll contains a single documents with only the _id field): ``` s...

Guest over 3 years ago in Querying & Aggregations 3 Submitted

1 VOTE

Support concise correlated queries for $graphLookUp

Similar to $lookUp, support concise correlated queries for $graphLookUp. It would allow adding a $project stage to reduce overhead.

Guest about 1 year ago in Querying & Aggregations 0 Submitted

1 VOTE

Capture pre-images for ONLY specified change events

Currently, pre-images are captured for all updates, replacements and deletes on a given collection. Ask: Enable capture of pre-images for ['DELETED', ...] documents only. Context: A customer uses a collection for ingestion, where 16-20M do...

Guest about 1 year ago in Database 2 Submitted

2 VOTE

Flatten arrays in group stage

Have group operators to flatten document arrays into a single one with or without repeated elements. So -> doc1 = {arr: [1,2,3,4], gr: "group"}, doc2 = {arr: [5, 6, 7, 8], gr: "group"} {$group: {_id: "$gr", arrays: {$***: "$arr"} } } => {_id...

Guest over 2 years ago in Querying & Aggregations 1 Submitted

4 VOTE

Low latency Change Stream for Global Cluster in Atlas

our event-driven applications need to publish events to Kafka triggered by Change Stream feature. It works perfect in replicaset MongoDB cluster. However, after migrating to Global Cluster in Atlas, the Change Stream cannot keep low latency becau...

Guest almost 5 years ago in Database 1 Submitted

3 VOTE

collection-level users should be able to list their collections

Currently users with collection-specific read or read/write permissions are not authorized to perform the following commands: db.listCollections() show collections db.getCollectionNames() This impacts the shell (and also third party tools that w...

Guest over 3 years ago in Database 0 Submitted

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