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https://issues.apache.org/jira/browse/SPARK-21845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16142953#comment-16142953
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Xiao Li commented on SPARK-21845:
---------------------------------
https://github.com/apache/spark/pull/19062
> Make codegen fallback of expressions configurable
> -------------------------------------------------
>
> Key: SPARK-21845
> URL: https://issues.apache.org/jira/browse/SPARK-21845
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Xiao Li
> Assignee: Xiao Li
>
> We should make codegen fallback of expressions configurable. So far, it is
> always on. We might hide it when our codegen have compilation bugs. Thus, we
> should also disable the codegen fallback when running test cases.
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