Hi!

I have a table where I repeatingly log the status of some service, which
looks something like this:

        < timestamp, status >

Now, everytime my service is up I save the timestamp and a status of
"up", if it's down I save the timestamp with "down", eg:
        10:13   up
        10:14   up
        10:15   up
        10:16   down
        10:17   up
        10:18   up

I'd like to merge this information to intervals where the service was up
or down.

        < intervall, status >
        10:13-10:15     up
        10:16-10:16     down
        10:17-1018      up

I've no clue how to approach this problem.

Any ideas/hints?
Also suggestions on a feasible better schema are welcome. :-)

Thanks
Patrick

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