Data Modeling & Indexing

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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 about 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 over 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 10 months ago in Data Modeling & Indexing 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 over 3 years 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 about 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

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

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 about 1 year ago in Data Modeling & Indexing 1 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

4 VOTE

Allow multiple text indexes per collection

MongoDb only allow one text index by collection, in contrast of other index types. This is a limitation that makes it difficult to develop projects with search functionality, for example, if you want to add a text search for advanced users on all...

Guest over 5 years ago in Data Modeling & Indexing 1 Submitted

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