@Override
  public void deleteData(String path, long endTime)
      throws IoTDBConnectionException, StatementExecutionException {
    deleteData(Collections.singletonList(path), Long.MIN_VALUE, endTime);
  }
delete data <= time in one timeseries

@param path data in which time series to delete
@param endTime data with time stamp less than or equal to time will be deleted
iotdb-client/session/src/main/java/org/apache/iotdb/session/Session.java