Discussion on HackerNews and Lobsters. MongoDB has recently released a new query engine coming in version 7.0. I was one of the people working on this engine during my 2 years in MongoDB and I would like to share some technical details about it.

Key Takeaways Even though MongoDB doesn’t enforce it, it is vital to design a schema. Likewise, indexes have to be designed in conjunction with your schema and access patterns. Avoid large objects, and especially large arrays.