@Explain(displayName = "GlobalTableId", explainLevels = { Level.EXTENDED })
  @Signature

  public int getDestTableId() {
    return destTableId;
  }
getFinalDirName that takes into account MM, but not DP, LB or buckets.
ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java