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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/12/23 01:17:00 UTC

[jira] [Updated] (IMPALA-8084) Multiple min-max filters per column

     [ https://issues.apache.org/jira/browse/IMPALA-8084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-8084:
----------------------------------
    Component/s: Backend

> Multiple min-max filters per column
> -----------------------------------
>
>                 Key: IMPALA-8084
>                 URL: https://issues.apache.org/jira/browse/IMPALA-8084
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Janaki Lahorani
>            Priority: Major
>
> It looks like we are sending one min-max filter per column to Kudu.  But the potential to filter more data can be realized by sending multiple ranges.  It will be beneficial to evaluate whether Kudu can accept multiple min-max filters.  If needed, enhance Kudu to accept multiple ranges per column.  The filter count is inversely proportional to density: denser data set needs less number of filters.



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