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Posted to issues@impala.apache.org by "Riza Suminto (Jira)" <ji...@apache.org> on 2025/01/06 21:40:00 UTC

[jira] [Resolved] (IMPALA-13637) Create a backend flag to control tuple-analysis in AggregationNode

     [ https://issues.apache.org/jira/browse/IMPALA-13637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Riza Suminto resolved IMPALA-13637.
-----------------------------------
    Fix Version/s: Impala 4.5.0
       Resolution: Fixed

> Create a backend flag to control tuple-analysis in AggregationNode
> ------------------------------------------------------------------
>
>                 Key: IMPALA-13637
>                 URL: https://issues.apache.org/jira/browse/IMPALA-13637
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>    Affects Versions: Impala 4.5.0
>            Reporter: Riza Suminto
>            Assignee: Riza Suminto
>            Priority: Major
>             Fix For: Impala 4.5.0
>
>
> IMPALA-13405 adds a new tuple-analysis logic in AggregationNode to lower cardinality estimation when dealing with multi-column grouping. It is good to have control flag in case the old behavior is preferred.



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