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https://issues.apache.org/jira/browse/SPARK-22171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-22171:
------------------------------------
Assignee: Apache Spark (was: Xiao Li)
> Describe Table Extended Failed when Table Owner is Empty
> --------------------------------------------------------
>
> Key: SPARK-22171
> URL: https://issues.apache.org/jira/browse/SPARK-22171
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Xiao Li
> Assignee: Apache Spark
>
> Users could hit `java.lang.NullPointerException` when the tables were created
> by Hive and the table's owner is `null` that are got from Hive metastore.
> `DESC EXTENDED` failed with the error:
> {noformat}
> SQLExecutionException: java.lang.NullPointerException at
> scala.collection.immutable.StringOps$.length$extension(StringOps.scala:47) at
> scala.collection.immutable.StringOps.length(StringOps.scala:47) at
> scala.collection.IndexedSeqOptimized$class.isEmpty(IndexedSeqOptimized.scala:27)
> at scala.collection.immutable.StringOps.isEmpty(StringOps.scala:29) at
> scala.collection.TraversableOnce$class.nonEmpty(TraversableOnce.scala:111) at
> scala.collection.immutable.StringOps.nonEmpty(StringOps.scala:29) at
> org.apache.spark.sql.catalyst.catalog.CatalogTable.toLinkedHashMap(interface.scala:300)
> at
> org.apache.spark.sql.execution.command.DescribeTableCommand.describeFormattedTableInfo(tables.scala:565)
> at
> org.apache.spark.sql.execution.command.DescribeTableCommand.run(tables.scala:543)
> at
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:66)
> at
> {noformat}
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