Github user davies commented on the pull request:
https://github.com/apache/spark/pull/2538#issuecomment-57020408
@giwa @JoshRosen It support window functions and updateStateByKey now,
should be function complete as Java API, I'd move on to add more docs and tests.
We did not do the calculation of time in Python, so Time and Duration are
not necessary. I would like to use datetime or seconds (float) instead of Time,
and seconds (int/float) instead of Duration in the API, then Python programmer
can easily access them, then I will plan to remove Time and Duration in Python.
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