for (ReduceSinkOperator rsop: bottomReduceSinkOperators) {
setNewTag(correlation, childrenOfDemux, rsop, bottomRSToNewTag);
}
// Create the DemuxOperaotr
DemuxDesc demuxDesc =
new DemuxDesc(
correlation.getNewTagToOldTag(),
correlation.getNewTagToChildIndex(),
childIndexToOriginalNumParents,
keysSerializeInfos,
valuessSerializeInfos);