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Posted to issues@beam.apache.org by "Jeffrey (Jira)" <ji...@apache.org> on 2020/01/24 02:27:00 UTC

[jira] [Created] (BEAM-9184) Add ToSet() combiner, similar to ToList() and ToDict()

Jeffrey created BEAM-9184:
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             Summary: Add ToSet() combiner, similar to ToList() and ToDict()
                 Key: BEAM-9184
                 URL: https://issues.apache.org/jira/browse/BEAM-9184
             Project: Beam
          Issue Type: New Feature
          Components: sdk-py-core
            Reporter: Jeffrey


ToList() doesn't do deduplication, and ToDict() requires key/value tuples. Sets are a different type than dicts in Python, so ToSet() is required to combine very large PCollections while deduplicating.



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