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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

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

3 VOTE

Switch for returning encrypted blob when providing old DEK

When rotating keys, we would like the option to still be able to fetch old documents with fields encrypted with an old DEK, exactly like what happens when we're querying documents without a DEK at all. This could be done with a bool switch when se...

Guest almost 3 years ago in FLE and Queryable Encryption 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

1 VOTE

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

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