private SemanticNodeProcessor getSortDynPartProc(ParseContext pCtx) {
    return new SortedDynamicPartitionProc(pCtx);
  }
Introduces a RS before FS to partition data by configuration specified
time granularity.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/SortedDynPartitionTimeGranularityOptimizer.java