We already presented a previous article on the index types available on MongoDB. MongoDB 4.4 was released a few months ago and introduced a new interesting feature: the hidden index. This feature is also available on Percona Server for MongoDB 4.4. In this article, well see what it is. What is a Hidden Index A [&]

https://www.percona.com/blog/2020/11/05/new-in-mongodb-4-4-hidden-index/