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This is a great post but sad that they addressed everything thoroughly except the most important question for me - query performance. I don't do all this mass updating of document oriented entities. They are stored and they stay stored. But we query the hell out of them so I would love to know how well that actually performs with various indexes on various data types within the document.

Should take a look at flatbuffers. It’s an evolution of protobuf that’s super optimized for querying sunsets of data. Basically lookup of offsets and mmap all the way.

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