Cheng Hao created SPARK-4713:
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Summary: SchemaRDD.unpersist() should not raise exception if it is
not cached.
Key: SPARK-4713
URL: https://issues.apache.org/jira/browse/SPARK-4713
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Cheng Hao
Priority: Minor
Unpersist a uncached RDD, will not raise exception, for example:
{panel}
val data = Array(1, 2, 3, 4, 5)
val distData = sc.parallelize(data)
distData.unpersist(true)
{panel}
But the SchemaRDD will throws exception if the SchemaRDD is not cached. Since
SchemaRDD is the subclasses of the RDD, we should follow the same behavior.
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