Kent Yao created SPARK-17655:
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Summary: [SQL]Remove unused variables declarations and definations
in a WholeStageCodeGened stage
Key: SPARK-17655
URL: https://issues.apache.org/jira/browse/SPARK-17655
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Kent Yao
Priority: Minor
A WholeStageCodeGened stage with multiple CodegenSupport Operators generates
unused result rows and their associated buffer holders and row writers, which
can be removed.
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