John Patoch created BEAM-8272:
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Summary: GroupIntoBatches transform for Go SDK
Key: BEAM-8272
URL: https://issues.apache.org/jira/browse/BEAM-8272
Project: Beam
Issue Type: New Feature
Components: sdk-go
Reporter: John Patoch
Add a PTransform that batches inputs to a desired batch size. Batches will
contain only elements of a single key.
It should offer the same API as its Java counterpart:
[https://github.com/apache/beam/blob/11a977b8b26eff2274d706541127c19dc93131a2/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/GroupIntoBatches.java]
And Python counterpart:
https://github.com/apache/beam/blob/c445fdfdfab4a191aa780210564199f2873f85d8/sdks/python/apache_beam/transforms/util.py#L684
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