Amit Sela created BEAM-794:
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Summary: Differ combining in case of merging windows with
sideInputs
Key: BEAM-794
URL: https://issues.apache.org/jira/browse/BEAM-794
Project: Beam
Issue Type: Bug
Components: runner-spark
Reporter: Amit Sela
Assignee: Amit Sela
For background, see BEAM-696.
If a Combine transformation is applied to a PCollection with merging windows
and sideInput, the runner should differ the execution of Combine.
For the SparkRunner this means that it should use groupByKey instead of
combinePerKey/Globally.
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