@Override
  public CachedSchemaEngineStatistics getAsCachedSchemaEngineStatistics() {
    throw new UnsupportedOperationException("Wrong SchemaEngineStatistics Type");
  }
This class is used to record the global statistics of SchemaEngine in Memory mode.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/schemaengine/rescon/MemSchemaEngineStatistics.java