Because Rust is what's cool these days. Don't you wanna be cool? Also Rust has memory safety things that C++ doesn't have, so there's a class of bugs that can't happen in the Rust version. That doesn't mean the Rust version is 100% bug free, but just that it's not vulnerable to that class of bugs. So it's a good thing for security reasons if you're running a database server somewhere that attackers could get at it. There might be performance benefits down the road if they choose to focus on that.
Well, I will give 7/10 as an FYP
Rust doesn't have ACID and I'm sure this doesn't either.
I'd like to know if the "authors" know what I'm talking about.
You think that's bad, MongoDB doesn't even have schemas. Schemas!
Oh we used it in my first job. It was really slow and the data in there was all buggy.
We really should have used postgres instead, but it was the "big data" period so you had to use mongodb.