public void addToEstimatorPCSA(HiveDecimal decimal) {
    int v = decimal.hashCode();
    addToEstimatorPCSA(v);
  }
Resets a distinctValueEstimator object to its original state.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/common/ndv/fm/FMSketch.java