@Explain(displayName = "extended", displayOnlyOnTrue=true,
      explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
  public boolean isExtended() {
    return isExtended;
  }
DDL task description for DESC CONNECTOR commands.
ql/src/java/org/apache/hadoop/hive/ql/ddl/dataconnector/desc/DescDataConnectorDesc.java