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Cassandra's timestamps can be specified by the client: it's possible to use any integer as your timestamp, such as Lamport timestamps, or even atomic distributed counters (possibly using Cassandra's own counters).

Vector clocks are still out, though.

Edit: Actually, you can't do Lamport timestamps because you can't query the current value of a timestamp.

Re-edit: That's wrong. I shouldn't believe any old blog I find. (I'm leaving it in the comment because it was quoted in a reply.)




> Edit: Actually, you can't do Lamport timestamps because you can't query the current value of a timestamp.

you can get the timestamp of each column back as part of a SELECT.

is that not enough?




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