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  1. Apache Arrow
  2. ARROW-6853

[Java] Support vector and dictionary encoder use different hasher for calculating hashCode

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Details

    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 0.16.0
    • Java

    Description

      Hasher interface was introduce in ARROW-5898 and now have two different implementations (MurmurHasher and SimpleHasher) and it could be more in the future.

      And currently ValueVector#hashCode and DictionaryHashTable only use SimpleHasher for calculating hashCode. This issue enables them to use different hasher or even user-defined hasher for their own use cases.

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              tianchen92 Ji Liu
              tianchen92 Ji Liu
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