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https://issues.apache.org/jira/browse/IMPALA-11782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yida Wu updated IMPALA-11782:
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Epic Link: IMPALA-13187 (was: IMPALA-11461)
> Reduce size for each codegen cache entry in NORMAL mode
> -------------------------------------------------------
>
> Key: IMPALA-11782
> URL: https://issues.apache.org/jira/browse/IMPALA-11782
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Yida Wu
> Priority: Major
>
> We added support for codegen cache in IMPALA-11470, however in NORMAL mode,
> the size of each codegen cache entry is large because the key we use is the
> bitcode of the whole llvm module which is very large, one possible solution
> is to use the query plan plus other elements which could affect the codegen
> functions to be the key, from the prototype, it can reduce the cache size
> significantly, but one thing we need to confirm is the safety of using such
> keys.
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