Database

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Improve small collection lookup performance

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. Improved performance for lookups from large to small collections (where many origin documents match the same looked-up doc...

Ryan Peggs 6 days ago in Querying & Aggregations 0 Submitted

139 VOTE

Raise maximum BSON document size bigger than 16 MB

Per https://www.mongodb.com/docs/manual/reference/limits/#:~:text=The%20maximum%20BSON%20document%20size,MongoDB%20provides%20the%20GridFS%20API, maximum BSON document size is 16 MB. I would like to request this to support bigger sizes like 32 MB,...

Guest over 3 years ago in Database 28 Submitted

3 VOTE

Ability to increase compression level using zlib

Currently, changing compression level using zlib is not supported. It would be beneficial especially for the systems running on s390x platform to have an option to increase the compression level rather than using the default.

Guest about 1 month ago in Storage & Transactions 0 Submitted

4 VOTE

Allow Pinning Query Plan Cache Key to a Fixed Plan for a Given Query Shape Hash

Allow Pinning Query Plan Cache Key to a Fixed Plan for a Given Query Shape Hash n MongoDB 8.0, the new setQuerySettings command allows administrators to enforce index hints and other behavior based on the query shape hash. This gives users partia...

Guest 3 months ago in Querying & Aggregations 0 Submitted

7 VOTE

Add Option to Disable Specific Metric Groups in FTDC

https://jira.mongodb.org/browse/SERVER-103431 This is a feature request (not a bug) to enhance FTDC by allowing users to disable the collection of specific groups of metrics. Currently, FTDC collects a wide array of metrics including systemMe...

Guest 7 months ago in Database 0 Submitted

33 VOTE

ARM support

Can we support ARM packages for Debian 11. They are required for bitnami to add ARM support to their mongo charts

Guest over 2 years ago in Database 3 Submitted

3 VOTE

Native Support for Date-Only and Time-Only Field Types

### Summary MongoDB currently lacks native field types for **date-only** (e.g., `2025-05-28`) and **time-only** (e.g., `13:45:00`) values. This results in frequent developer confusion, incorrect behavior around time zones, wasted storage, and the...

Guest 3 months ago in Data Modeling & Indexing 0 Submitted

3 VOTE

Implement a $hash operator for queries

### Current State: MongoDB currently lacks a native `$hash` operator in the aggregation/query language. While certain helpers like `convertShardKeyToHashed` or `$toHashedIndexKey` exist, they are limited in scope: * Not available as true query o...

Guest 4 months ago in Querying & Aggregations 0 Submitted

28 VOTE

How to limit the number of document updates?

Hi I want to limit the number of document updates in one command. for example db.users.updateMany( , , { limit : 100 } ); https://www.mongodb.com/community/forums/t/how-to-limit-the-number-of-document-updates/102204/3

Guest almost 3 years ago in Database 1 Submitted

51 VOTE

XA Support

Is there any plan to implement distributed transaction that involves more than one data stores (for e.g. an RDBMS and Mongo)? We have one such requirement and tried a simple POC by creating a simple class extending XAResource (MongoXAResource impl...

Guest over 5 years ago in Storage & Transactions 10 Submitted

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