Feedback

Support default values in validation

Many MongoDB users feel that default values should be supported in validation. See, for example: https://www.mongodb.com/community/forums/t/setting-default-values-in-data-schema/8411 https://www.mongodb.com/community/forums/t/support-default-value...

Guest 12 months ago in Data Modeling & Indexing 0 Submitted

3 VOTE

Compound clustered index

Now it is possible to create a clustered index for only one field. Since documents can be arranged in ascending order of multiple fields, I see no reason to disallow a clustered index from being a compound. Expected syntax: ``` create_collection(...

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

3 VOTE

bloom filter index

https://www.percona.com/blog/2019/06/14/bloom-indexes-in-postgresql/ I think having an option to use bloom filter indexes could provide for better performance when compared to compound indexes and eliminate the need for having multiple indexes. I...

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

3 VOTE

Add numerically-ordered index feature which forces a field to maintain ordering

I would like MongoDB to add better support for ordered lists across documents in a collection. This feature would allow the user to designate a field such as "position", and the DB would ensure the values of that field across documents remain in a...

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

3 VOTE

Support compound TTL index

Right now you can only do a single field TTL index. I would like a put a TTL on a compound index.

Guest over 3 years ago in Data Modeling & Indexing 1 Submitted

3 VOTE

Enable BigInt Support for Blockchain Use

Smart contracts on Ethereum and on Ethereum compatible chains are represented as 256bit integers. There are several libraries widely used to deal with these data types in JavaScript such as bn.js and BigNumber.js. A potential workaround could be...

Guest almost 4 years ago in Storage & Transactions 0 Submitted

3 VOTE

Allow changing compression of an existing collection

I'd like to switch my database from Snappy to Zstd compression. Currently, it doesn't seem that it is possible to change the compression of an existing collection. It would be nice if there were a way to do this, even if (for example) it requi...

Guest almost 4 years ago in Storage & Transactions 0 Submitted

2 VOTE

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

4 VOTE

wired

wiredTiger open files usage Currently WT uses a file per collection and index, leading in some scenarios to extremely high number of open files/dhandles. Is there any plan to support one file/dhandle per database?

Guest over 5 years ago in Storage & Transactions 0 Submitted

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