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  1. Parquet
  2. PARQUET-384

Add Dictionary Based Filtering to Filter2 API

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.9.0, 1.8.2
    • Component/s: parquet-mr
    • Labels:
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      Description

      Dictionary based predicate evaluation show very significant gains for certain cases like the following:

      • Sparse values in dictionary encoded columns
      • Data staged sorted by fields used in predicate evaluation

      This would be good to introduce into the filter2 API.

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              • Assignee:
                dweeks-netflix Daniel Weeks
                Reporter:
                dweeks-netflix Daniel Weeks
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                • Created:
                  Updated:
                  Resolved: