Does anyone know of a noSQL or SQL database, which allows ordinary clients to query an earlier state? i.e. have access to all (or a reasonable number of) prior revisions of the data within the schema; pretend that the query happened "10 minutes ago" or similar.

boosts welcome, please! :)


@dev I guess that could be able with CouchDB. It's been a while since I used that, but as it's an eventual consistent db design, having multiple states accessible is part of its synchronisation mechanism.

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