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https://issues.apache.org/jira/browse/HIVE-23226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-23226:
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Target Version/s: 4.0.0
> Implement Calcite rule to transform CASE into COALESCE when possible
> --------------------------------------------------------------------
>
> Key: HIVE-23226
> URL: https://issues.apache.org/jira/browse/HIVE-23226
> Project: Hive
> Issue Type: Improvement
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Priority: Major
>
> Currently, it is done in {{TypeCheckProcFactory}} when we create a Hive
> expression after Calcite optimization.
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