Yida Wu created IMPALA-11783:
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Summary: 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
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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