@Explain(displayName="Default pool", explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
  public String getDefaultPool() {
    return defaultPool;
  }
DDL task description for ALTER RESOURCE PLAN ... SET ... commands.
ql/src/java/org/apache/hadoop/hive/ql/ddl/workloadmanagement/resourceplan/alter/set/AlterResourcePlanSetDesc.java