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Posted to issues-all@impala.apache.org by "Michael Smith (Jira)" <ji...@apache.org> on 2025/06/17 22:51:00 UTC

[jira] [Resolved] (IMPALA-13659) Allow union in cached subtree

     [ https://issues.apache.org/jira/browse/IMPALA-13659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Smith resolved IMPALA-13659.
------------------------------------
    Fix Version/s: Impala 5.0.0
       Resolution: Fixed

> Allow union in cached subtree
> -----------------------------
>
>                 Key: IMPALA-13659
>                 URL: https://issues.apache.org/jira/browse/IMPALA-13659
>             Project: IMPALA
>          Issue Type: Improvement
>            Reporter: Michael Smith
>            Assignee: Joe McDonnell
>            Priority: Major
>             Fix For: Impala 5.0.0
>
>
> Allow UNION nodes in a cached subtree. Skip placing a tuple cache node above unions however, as this will always result in a larger cache entry than the components of the union. This is primarily useful for aggregation of union results.



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