Jan Lukavský created BEAM-8529:
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Summary: Samza runner does not allow using Void as key in grouping
operations
Key: BEAM-8529
URL: https://issues.apache.org/jira/browse/BEAM-8529
Project: Beam
Issue Type: Bug
Components: runner-samza
Affects Versions: 2.17.0
Reporter: Jan Lukavský
Using {{Void}} as key type for grouping operations fails due to the fact that
its only value is {{null}} and SamzaRunner does not accept using {{null}}
values as keys. Other runners seem to work fine with that.
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