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