gatorsmile 5f69433453 [SPARK-22171][SQL] Describe Table Extended Failed when Table Owner is Empty ... ## What changes were proposed in this pull request? 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: > 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 ## How was this patch tested? Added a unit test case Author: gatorsmile <gatorsmile@gmail.com> Closes #19395 from gatorsmile/desc.		2017-10-03 21:27:58 -07:00
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compatibility/src/test/scala/org/apache/spark/sql/hive/execution	[SPARK-21831][TEST] Remove spark.sql.hive.convertMetastoreOrc config in HiveCompatibilitySuite	2017-08-25 19:51:13 -07:00
src	[SPARK-22171][SQL] Describe Table Extended Failed when Table Owner is Empty	2017-10-03 21:27:58 -07:00
pom.xml	[SPARK-21936][SQL] backward compatibility test framework for HiveExternalCatalog	2017-09-07 23:21:49 -07:00