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https://issues.apache.org/jira/browse/SPARK-2052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-2052.
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Resolution: Fixed
> Add optimization for CaseConversionExpression's.
> ------------------------------------------------
>
> Key: SPARK-2052
> URL: https://issues.apache.org/jira/browse/SPARK-2052
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Takuya Ueshin
> Assignee: Takuya Ueshin
>
> Add optimization for {{CaseConversionExpression}}'s.
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