GitHub user aljoscha opened a pull request:
https://github.com/apache/flink/pull/1605
[FLINK-2991] Add Folding State and use in WindowOperator
This enables efficient incremental aggregation of fold window.
This also adds:
- WindowedStream.apply(initVal, foldFunction, windowFunction)
- AllWindowedStream.apply(initVal, foldFunction, windowFunction)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/aljoscha/flink window-fold
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1605.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1605
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commit f81df7039455eb1ae4834490a79aa6577635eda4
Author: Aljoscha Krettek <aljoscha.kret...@gmail.com>
Date: 2016-02-08T13:56:19Z
[FLINK-2991] Add Folding State and use in WindowOperator
This enables efficient incremental aggregation of fold window.
This also adds:
- WindowedStream.apply(initVal, foldFunction, windowFunction)
- AllWindowedStream.apply(initVal, foldFunction, windowFunction)
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