Ke Wu created BEAM-12681:
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Summary: Support transcoding for Flatten in Samza Runner
Key: BEAM-12681
URL: https://issues.apache.org/jira/browse/BEAM-12681
Project: Beam
Issue Type: New Feature
Components: runner-spark
Reporter: Ke Wu
The Beam documentation mentions that Flatten does not require coders of all
inputs to be of the same type, as long as the result type is the same. However,
the current implementation in the Spark Runner requires all coders to match.
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