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> So, we would have databases like Users.db, UserSessions.db, Settings.db, etc.

How do you do joins?




Not the OP, but you can attach and join tables from multiple sqlite databases in the same process.


Really??? How? Because I use sqlite, and the query functions that I know take a single DB as an argument.



I would guess they do parallelized calls to the microservices to collect the data.




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