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Taking Postgres serverless (Changelog Interviews #510)

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AWS Multi Master

You can send reads to a local replica. But you need to understand that that replica will be behind of the master copy by X amount of milliseconds. At some point, it will get tricky to replicate to 200. So you will need to separate replication from the engine as well. The proxy can detect those read after write patterns. And in that particular situation, send the read into the right replica too.

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