Xiao Li created SPARK-22171:
-------------------------------
Summary: 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: Xiao Li
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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