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. Disclaimer: Prior to writing this article, I have contacted my ex-colleagues at MongoDB to ensure that it does not conflict with their plans. They gave me the green light, provided I send them the draft before publishing, which I did. They did not have any notes on it.

I’ve been a database person for an embarrassing length of time, but I only started working with MongoDB recently and there are a few things that I wish I’d known about.

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