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Posted to issues-all@impala.apache.org by "Mihaly Szjatinya (Jira)" <ji...@apache.org> on 2025/08/26 12:24:00 UTC

[jira] [Resolved] (IMPALA-7086) Cache timezone name look ups

     [ https://issues.apache.org/jira/browse/IMPALA-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mihaly Szjatinya resolved IMPALA-7086.
--------------------------------------
    Resolution: Fixed

> Cache timezone name look ups
> ----------------------------
>
>                 Key: IMPALA-7086
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7086
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Csaba Ringhofer
>            Assignee: Mihaly Szjatinya
>            Priority: Major
>              Labels: performance, ramp-up, timestamp
>
> to/from_utc_timestamp looks up time zones by name during every invocation, even if the timezone parameter is constant. Avoiding this lookup if time zone name is the same as during the last call (in the fragment) could speed up time zone conversions.



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