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Validation should support default values

Various users feel that validation should support default values. See, for instance: https://www.mongodb.com/community/forums/t/support-default-value-in-schema-validation/319684 https://www.mongodb.com/community/forums/t/setting-default-values-in-...

Guest 12 months ago in Data Modeling & Indexing 0 Submitted

3 VOTE

Allow the ability when NVME cluster to autoscale up based on CPU and Memory

To provide autoscaling capability for MongoDB NVME clusters based on CPU utilization and memory metrics. This feature would automatically provision additional resources when predefined thresholds are reached, ensuring optimal performance during us...

Guest about 1 year ago in Performance & Optimization 0 Submitted

11 VOTE

Rename an existing index

Allow for the possibility of renaming an existing index, without having to drop and recreate it. Let us say a unique index exists in production, it might not be possible to safely drop it. Yet the index name might not be ideal.

Guest over 4 years ago in Data Modeling & Indexing 2 Submitted

3 VOTE

Add support for all type of joins like Postgres has and improve performance

$lookup is a performance killer. Joins are crucial parts in every OLTP system. $lookup is the equivalent to join in SQL, however $lookup is slow, doesn't support hash joins or other efficient join algorithm implemented in Postgres for example. Se...

Guest over 1 year ago in Performance & Optimization 1 Submitted

1 VOTE

Allow descriptions for $expr sections in DB validation

What problem are you trying to solve? Focus on the what and why of the need you have, not the how you'd like it solved. Our collection has some complex $expr rules for validating our collection. Unfortunately, $expr does not allow us to add a...

Habibullah Aslam 6 months ago in Data Modeling & Indexing / Querying & Aggregations 1 Will Not Implement

6 VOTE

Extend schema validation to be able to enforce referential integrity between collections

Where a relational database uses 2 tables to store a 1:many "parent - child" relationship between entities, MongoDB mostly stores the child documents in an array file as part of the parent document. This automatically ensures referential integrity...

Guest about 3 years ago in Data Modeling & Indexing 0 Submitted

6 VOTE

Implement $bucket and $group on indexed values with sub-linear runtime

We noticed that sum $bucket and $group aggregations such as $min, $max, $count are unexpectedly slow even when fully covered by an index, (partially) because the DB scans through the entire index rather than employing optimization approaches such ...

Guest over 3 years ago in Performance & Optimization 0 Submitted

3 VOTE

TTL index throttling for deletion

To avoid deletion impact, we need to control the quantity and speed of document generations(insert). Need a way to throttle down the deletion quantity per a delete operation. i.e. # of documents per a ttl delete, sleep time between deletions(defa...

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

6 VOTE

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

Guest almost 5 years ago in Data Modeling & Indexing 0 Submitted

4 VOTE

Support readOnly in Json Schema Validation

Support the readOnly property for json schema validation to make certain fields immutable (or the entire document) after creation.

Guest almost 4 years ago in Data Modeling & Indexing 0 Submitted

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