@Override
  public void constructUdfExecutors(
      Map<String, UDTFExecutor> expressionName2Executor, ZoneId zoneId) {
    throw new UnsupportedOperationException();
  }
Only used for representing GROUP BY TIME filter.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/expression/other/GroupByTimeExpression.java