@Override
  public void createAlignedTimeseries(
      String deviceId,
      List<String> measurements,
      List<TSDataType> dataTypes,
      List<TSEncoding> encodings,
      List<CompressionType> compressors,
      List<String> measurementAliasList,
      List<Map<String, String>> tagsList,
      List<Map<String, String>> attributesList)
      throws IoTDBConnectionException, StatementExecutionException {
    TSCreateAlignedTimeseriesReq request =
        getTSCreateAlignedTimeseriesReq(
            deviceId,
            measurements,
            dataTypes,
            encodings,
            compressors,
            measurementAliasList,
            tagsList,
            attributesList);
    defaultSessionConnection.createAlignedTimeseries(request);
  }
Only changes the member variable of the Session object without sending it to server.
iotdb-client/session/src/main/java/org/apache/iotdb/session/Session.java