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  1. IMPALA
  2. IMPALA-1577

Improve from_utc_timestamp perf which is unpredictable and slow

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Resolved
    • Affects Version/s: Impala 2.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:

      Description

      The performance of from_utc_timestamp, besides being extremely poor compared to that of other builtin functions such as from_unixtime, depends greatly on the input timezone. Given that evaluating this function can dominate the total query time, it would be good to at least make its performance more consistent, and even better to improve its performance overall.

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              • Assignee:
                Unassigned
                Reporter:
                skye Skye Wanderman-Milne
              • Votes:
                3 Vote for this issue
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                7 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: