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Posted to issues@hive.apache.org by "Zoltan Haindrich (Jira)" <ji...@apache.org> on 2021/07/07 17:03:00 UTC

[jira] [Assigned] (HIVE-25311) Slow compilation of union operators with >100 branches

     [ https://issues.apache.org/jira/browse/HIVE-25311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltan Haindrich reassigned HIVE-25311:
---------------------------------------


> Slow compilation of union operators with >100 branches
> ------------------------------------------------------
>
>                 Key: HIVE-25311
>                 URL: https://issues.apache.org/jira/browse/HIVE-25311
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>
> during the processing of an N way union operator the full plan is cloned N times; which might hurt compilation time performance



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