Reynold Xin created SPARK-9080:
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Summary: IsNan expression
Key: SPARK-9080
URL: https://issues.apache.org/jira/browse/SPARK-9080
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Reynold Xin
Priority: Critical
Add IsNan expression to return true if the input double/float value is NaN.
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