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https://issues.apache.org/jira/browse/SPARK-30998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-30998:
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Affects Version/s: (was: 2.4.6)
2.0.2
2.1.3
2.2.3
2.3.4
2.4.5
> ClassCastException when a generator having nested inner generators
> ------------------------------------------------------------------
>
> Key: SPARK-30998
> URL: https://issues.apache.org/jira/browse/SPARK-30998
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.2, 2.1.3, 2.2.3, 2.3.4, 2.4.5, 3.0.0, 3.1.0
> Reporter: Takeshi Yamamuro
> Assignee: Takeshi Yamamuro
> Priority: Major
> Fix For: 3.0.0, 2.4.6
>
>
> A query below failed in the master/branch-3.0/branch-2.4;
> {code}
> scala> sql("select array(array(1, 2), array(3))
> ar").select(explode(explode($"ar"))).show()
> 20/03/01 13:51:56 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0)/
> 1]
> java.lang.ClassCastException: scala.collection.mutable.ArrayOps$ofRef cannot
> be cast to org.apache.spark.sql.catalyst.util.ArrayData
> at
> org.apache.spark.sql.catalyst.expressions.ExplodeBase.eval(generators.scala:313)
> at
> org.apache.spark.sql.execution.GenerateExec.$anonfun$doExecute$8(GenerateExec.scala:108)
> at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490)
> at scala.collection.Iterator$ConcatIterator.hasNext(Iterator.scala:222)
> at scala.collection.Iterator$$anon$10.hasNext(Iterator.scala:458)
> ...
> {code}
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