Database

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Introduce int8 (and int16) data types

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. Having int32 as the smallest integer type means even values which can't go over 127 (as is common with enums) have to take...

Er Fr 5 months ago in Database 0 Future Consideration

11 VOTE

Raise the limit of 16 MB JSON between aggregation stages

When doing analytics, the 16 MB JSON limit between aggregation stages restricts the ability to process large amount of data. allowDiskUse does not help with all the various $operators and stages that we use. See ticket 00774514 for details.

Guest about 4 years ago in Querying & Aggregations 0 Submitted

3 VOTE

Disallow new connections that don't specify an appName field

Currently as a DBA it's sometimes hard to identify which service is causing load on a shared cluster/database. Some people connect for adhoc workloads but don't specify an appName making it hard to track back to the owner. It would be useful to re...

Guest about 1 year ago in Database 0 Submitted

9 VOTE

Handle Daylight Saving Time when $densify is used on a date field

When using "day" as "unit" for a $densify pipeline stage on a date field, the date is always advanced of 24 hours. This is however not always the expected result in timezones in which the year has one 23-hour and one 25-hour long day, because of D...

Guest over 3 years ago in Querying & Aggregations 1 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

14 VOTE

More complex balancer windows for sharded clusters

Currently we can define a single balancer window which is applied for every day of the week. It would useful to extend this with, for example: - multiple windows per day (e.g. 2-4am and 9-11pm) - custom windows for days of the week (e.g. Sat 5p...

Guest almost 6 years ago in Replication & Sharding 0 Submitted

11 VOTE

Identification of unused/less used collections

As a DBA I'd like to identify unused collections so that I can remove them to optimize performance. As of now there doesn’t seem to be a direct way. One option could be to settup auditing or using logging (e.g. set the slow op timer to 0 so we log...

Guest over 4 years ago in Database 1 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 5 months ago in Data Modeling & Indexing / Querying & Aggregations 1 Will Not Implement

2 VOTE

Coordinate Releasing Better

When Mongo releases a new version, the downloads, release notes, and version selection in the support portal are never in sync and sometimes out of sync for weeks. An example right now is 7.0.20. It has been out for a while. If I update via my OS...

Guest 11 months ago in Database 0 Submitted

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