Yeah but they do not recommend using that. I think the one nosql afficianado in my team spoke with mongo support and they recommended reassessing our document s

Yeah but they do not recommend using that. I think the one nosql afficianado in my team spoke with mongo support and they recommended reassessing our document structure for it. (So a migration after all... ) Also in their blogpost [1], about $lookup they say: We’re still concerned that $lookup can be misused to treat MongoDB like a relational database. But instead of limiting its availability, we’re going to help developers know when its use is appropriate, and when it’s an anti-pattern. In the coming months, we will go beyond the existing documentation to provide clear, strong guidance in this area. [1] https://www.mongodb.com/blog/post/revisiting-usdlookup https://www.mongodb.com/blog/post/revisiting-usdlookup