@Override
  public Package findPackage(GetPackageRequest request) {
    MPackage mPkg = findMPackage(request.getCatName(), request.getDbName(), request.getPackageName());
    return mPkg == null ? null : mPkg.toPackage();
  }
Get partition's column stats

@return Map of column name and its stats
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java