Hive
  1. Hive
  2. HIVE-6027

non-vectorized log10 has rounding issue

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Trivial Trivial
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.13.0
    • Component/s: None
    • Labels:
      None

      Description

      In HIVE-6010, I found that vectorized and non-vectorized log10 may produce different results in the last digit of the mantissa (e.g. 7 vs 8). It turns out that vectorized one uses Math.log10, but non-vectorized uses log/log(10). Both should use Math.log10.

      1. HIVE-6027.patch
        0.9 kB
        Sergey Shelukhin

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          People

          • Assignee:
            Sergey Shelukhin
            Reporter:
            Sergey Shelukhin
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            Dates

            • Created:
              Updated:
              Resolved:

              Development