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Posted to issues-all@impala.apache.org by "Qifan Chen (Jira)" <ji...@apache.org> on 2022/04/27 16:44:00 UTC

[jira] [Assigned] (IMPALA-11274) CNF Rewrite causes a regress in join node performance

     [ https://issues.apache.org/jira/browse/IMPALA-11274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Qifan Chen reassigned IMPALA-11274:
-----------------------------------

    Assignee: Qifan Chen

> CNF Rewrite causes a regress in join node performance
> -----------------------------------------------------
>
>                 Key: IMPALA-11274
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11274
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>            Reporter: Qifan Chen
>            Assignee: Qifan Chen
>            Priority: Major
>
> It appears that cnf rewrite can generate more predicates and presumably cause the same query to execute slower.



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