@Explain(displayName = "Basic Stats NoJob Work", explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
  public BasicStatsNoJobWork getBasicStatsNoJobWork() {
    return basicStatsNoJobWork;
  }
Stats Work, may include basic stats work and column stats desc
ql/src/java/org/apache/hadoop/hive/ql/plan/StatsWork.java