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  1. Hive
  2. HIVE-14516

OrcInputFormat.SplitGenerator.callInternal() can be optimized

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.2.0
    • Fix Version/s: 4.0.0
    • Component/s: Transactions
    • Labels:
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    • Target Version/s:

      Description

      callIntenal() has
      // We can't eliminate stripes if there are deltas because the
      // deltas may change the rows making them match the predicate.

      but in Acid 2.0, the deltas only have delete events thus eliminating stripes from "base" of split should be safe.

      cc Gopal V

        Attachments

        1. HIVE-14516.01.patch
          2 kB
          Igor Kryvenko

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              • Assignee:
                ikryvenko Igor Kryvenko
                Reporter:
                ekoifman Eugene Koifman
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                • Created:
                  Updated:
                  Resolved: