[jira] [Created] (SPARK-13651) Generator outputs are not resolved correctly resulting in runtime error

["Dilip Biswal (JIRA)" <ji...@apache.org>]

Dilip Biswal created SPARK-13651:
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             Summary: Generator outputs are not resolved correctly resulting in runtime error
                 Key: SPARK-13651
                 URL: https://issues.apache.org/jira/browse/SPARK-13651
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Dilip Biswal


Seq(("id1", "value1")).toDF("key", "value").registerTempTable("src")
sqlContext.sql("SELECT t1.* FROM src LATERAL VIEW explode(map('key1', 100, 'key2', 200)) t1 AS key, value")

Running above repro results in :

java.lang.ClassCastException: java.lang.Integer cannot be cast to org.apache.spark.unsafe.types.UTF8String
	at org.apache.spark.sql.catalyst.expressions.BaseGenericInternalRow$class.getUTF8String(rows.scala:46)
	at org.apache.spark.sql.catalyst.expressions.GenericInternalRow.getUTF8String(rows.scala:221)
	at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(generated.java:42)
	at org.apache.spark.sql.execution.Generate$$anonfun$doExecute$1$$anonfun$apply$9.apply(Generate.scala:98)
	at org.apache.spark.sql.execution.Generate$$anonfun$doExecute$1$$anonfun$apply$9.apply(Generate.scala:96)
	at scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
	at scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
	at scala.collection.Iterator$class.foreach(Iterator.scala:742)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1194)
	at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59)
	at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104)
	at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48)
	at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:308)
	at scala.collection.AbstractIterator.to(Iterator.scala:1194)
	at scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:300)
	at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1194)
	at scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:287)
	at scala.collection.AbstractIterator.toArray(Iterator.scala:1194)
	at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13.apply(RDD.scala:876)
	at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13.apply(RDD.scala:876)
	at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1794)
	at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1794)
	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:69)
	at org.apache.spark.scheduler.Task.run(Task.scala:82)
	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:227)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)



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