MongoDB Internal Architecture | The Backend Engineering Show
The Backend Engineering Show with Hussein Nasser
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5.2, 4.2 to 5.2 Is a New Feature, Right?
The ID field is the main focus for this. If you're looking up a document by its ID, it's a single beautiful search immediately find the document, base and document. Now let's go to the final stage where 5.3, I think is July of 2022, really, very, very brand new feature called cluster collections. That means the wire tiger hidden key disappears, right? And instead, this becomes your hidden index effectively. All the leaf pages have full documents right here. Pretty neat. You don't really need to do these two lookups anymore if you're searching for ID, right? Again, this is not an option. So if you still want this design,
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