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Posted to dev@orc.apache.org by "Yiqun Zhang (Jira)" <ji...@apache.org> on 2021/09/18 14:03:00 UTC

[jira] [Created] (ORC-1005) Ensure that the java and C++ implementations of determineEncoding in RunLengthIntegerWriterV2 are consistent.

Yiqun Zhang created ORC-1005:
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             Summary: Ensure that the java and C++ implementations of determineEncoding in RunLengthIntegerWriterV2 are consistent.
                 Key: ORC-1005
                 URL: https://issues.apache.org/jira/browse/ORC-1005
             Project: ORC
          Issue Type: Improvement
          Components: C++, Java
    Affects Versions: 1.8.0
            Reporter: Yiqun Zhang


The current Java determineEncoding implementation is not optimal and may calculate ZigzagLiterals and zzBits100p before deciding on DELTA encoding, which is redundant.

It is better to make the java implementation consistent with c++.



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