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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 over 2 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

Multiple unique single indexes in sharded collections

MongoDB sharded collection can only have one unique index which is the shard key. However, in real applications, one might need more than one single unique index. "Proxy" collections suggested in https://www.mongodb.com/docs/manual/tutorial/unique...

Guest over 1 year ago in Data Modeling & Indexing 1 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 almost 3 years ago in Querying & Aggregations 1 Submitted

4 VOTE

Allow multiple text indexes per collection

MongoDb only allow one text index by collection, in contrast of other index types. This is a limitation that makes it difficult to develop projects with search functionality, for example, if you want to add a text search for advanced users on all...

Guest over 5 years ago in Data Modeling & Indexing 1 Submitted

2 VOTE

Add SHA2, SHA3 and ECDSA functions to agg framework

It is very useful (and valuable security-wise) to be able to reverify hashes and signatures "on-engine" instead of dragging material out to a client app and running the algo there. The implementations are straightforward and everywhere now so it's...

Guest almost 3 years ago in Querying & Aggregations 0 Submitted

1 VOTE

Is there any limitation on size of query in pipeline (character in query, not data)

I have an aggregate query, when the character in pipeline over 21066 character, the result return wrong format that the pipeline expected. So I wonder is there any limitation on size of query in pipeline? My case is: Query: [ "$match":{"profileI...

Guest over 1 year ago in Querying & Aggregations 0 Submitted

2 VOTE

geo

It would be nice to get the length of an LineString of a geo-json object or the possibility to write an aggregation to calculate it.

Guest about 3 years ago in Querying & Aggregations 0 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 over 1 year ago in Querying & Aggregations 0 Submitted

2 VOTE

Add hash function (eg. md5) to aggregation pipeline

I would like to implement hash-based sharding in my own application on top of MongoDB. For that purpose, I would like to pull a stable pseudorandom subset of documents into each of my servers, and I would like to do so without enlarging the docume...

Guest about 3 years ago in Querying & Aggregations 0 Submitted

2 VOTE

$dateDiff operator should be useful to calculate age

In the documentation it says: " For example, two dates that are 18 months apart would return 1 year difference instead of 1.5 years.". But if startDate is 2021-08-01 and endDate is 2023-02-01, the result is 2 years difference. I think it should be...

Guest about 3 years ago in Querying & Aggregations 1 Submitted

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