Takuya Ueshin created SPARK-2535:
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Summary: Add StringComparison case to NullPropagation.
Key: SPARK-2535
URL: https://issues.apache.org/jira/browse/SPARK-2535
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Takuya Ueshin
{{StringComparison}} expressions including {{null}} literal cases could be
added to {{NullPropagation}}.
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