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Posted to issues-all@impala.apache.org by "Yida Wu (Jira)" <ji...@apache.org> on 2024/06/27 17:13:00 UTC

[jira] [Updated] (IMPALA-11783) Safety enhancement for codegen cache in OPTIMAL mode

     [ https://issues.apache.org/jira/browse/IMPALA-11783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yida Wu updated IMPALA-11783:
-----------------------------
    Epic Link: IMPALA-13187  (was: IMPALA-11461)

> Safety enhancement for codegen cache in OPTIMAL mode
> ----------------------------------------------------
>
>                 Key: IMPALA-11783
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11783
>             Project: IMPALA
>          Issue Type: Improvement
>            Reporter: Yida Wu
>            Priority: Major
>
> The optimal mode of the codegen cache uses the hashcode and the length combination as the key, it could have a collision issue, to enhance the safety of reusing the codegen functions from the cache in optimal mode, we can add a check to make sure the arguments and return type of the cached functions are as expected.



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