@Explain(displayName = "table", explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
  public TableDesc getTableInfo() {
    return tableInfo;
  }
getFinalDirName that takes into account MM, but not DP, LB or buckets.
ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java