Database

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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 11 months ago in Performance & Optimization 1 Submitted

3 VOTE

MongoDB should have a database backup system commit base for large self-management databases, like git commit.

There is already a mongodb backup tool mongodump but it is not a good solution for backing up large databases. We thought of making a CMS Platform with mongodb. Billions of websites can be created there. For such a large platform, the mongodump ba...

Guest 11 months ago in Data Modeling & Indexing 1 Submitted

2 VOTE

mongodump - add support for nsInclude/nsExclude

Currently mongodump supports the excludeCollection/includeCollection options but this requires the use of the --db option. It would be useful if mongodump was able to dump all databases, as it does by default, but also be able to specify a collect...

Guest 8 months ago in Database 0 Submitted

17 VOTE

Allow kill connections

Kill session commands only stop current activities on DB, but not closing/dropping connections (connections still remain open in $listSessions). It´d be useful to be able to close opened connections in situations where too many sessions have been ...

Guest over 5 years 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 almost 3 years ago in Querying & Aggregations 1 Submitted

2 VOTE

Leveraging Group By/Distinct Query to use regular Index

When using Group By or Distinct queries on database, provide the ability to leverage existing index i.e these queries today will miss using existing index db.collection.distinct("field") db.collection.aggregate([ { $group: { _id: "$category", ...

Guest 8 months ago in Querying & Aggregations 0 Submitted

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 over 3 years ago in Querying & Aggregations 0 Submitted

2 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 8 months ago in Database 0 Submitted

4 VOTE

Support for Ubuntu 24.04 for Mongodb-org version 6.0 7.0 8.0

No description provided

Guest over 1 year ago in Database 1 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 over 5 years ago in Replication & Sharding 0 Submitted

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