@Override
      public void serialize(Boolean value, JsonGenerator jsonGenerator,
          SerializerProvider serializerProvider) throws IOException {
        jsonGenerator.writeString(value.toString());
      }
List of statistics that can be collected quickly without requiring a scan of the data.
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/common/StatsSetupConst.java