@Override
  public List<String> getInputExpressionsAsStringList() {
    List<String> res = new ArrayList<>();
    for (int i = 0; i < inputExpressions.size(); i += expressionNumOfOneInput) {
      List<Expression> expressions = new ArrayList<>();
      for (int j = 0; j < expressionNumOfOneInput; j++) {
        expressions.add(inputExpressions.get(i + j));
      }
      res.add(getInputString(expressions));
    }
    return res;
  }
Generates the parameter part of the output column name.

<p>Example:

<p>Full output column name -> count_if(root.*.*.s1, 3)

<p>The parameter part -> root.*.*.s1, 3
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/parameter/CrossSeriesAggregationDescriptor.java