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[Bug]: Flattening PCollections with incompatible windowing should be a construction-time error. #22903

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robertwb opened this issue Aug 25, 2022 · 1 comment · Fixed by #30410

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@robertwb
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What happened?

Logically, a PCollection should have a single type of window. Not catching this at construction time can lead to odd errors on runners.

Issue Priority

Priority: 2

Issue Component

Component: sdk-py-core

@tvalentyn
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Can windows be directly comparable or some logic is necessary to decide whether they are compatible?

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3 participants