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https://issues.apache.org/jira/browse/BEAM-10900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17549061#comment-17549061
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Danny McCormick commented on BEAM-10900:
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This issue has been migrated to https://github.com/apache/beam/issues/20669
> stats.ApproximateUniqueCombineFn should handle numpy array
> ----------------------------------------------------------
>
> Key: BEAM-10900
> URL: https://issues.apache.org/jira/browse/BEAM-10900
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Monica Song
> Priority: P3
> Time Spent: 2h
> Remaining Estimate: 0h
>
> stats.ApproximateUniqueCombineFn uses DeterministicFastPrimitivesCoder to
> encode input data. DeterministicFastPrimitivesCoder only accepts python data
> types and iterables, so numpy data types throw an error.
> Edit: for more detail, with numpy data, the coder registry assigns
> PickleCoder which returns DeterministicFastPrimitivesCoder when calling
> PickleCoder.as_deterministic_coder
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