find Multiple Column in Model

I create a category model and ı want to choose three column. but findColumn Method permission this.
it's say $column_name should be a name of single column else you will get the DataException.

Do you suggest try modify this function


public function findColumn(string $columnName)
{
  if (strpos($columnName, ',') !== false)
  {
      throw DataException::forFindColumnHaveMultipleColumns();
  }

  $resultSet = $this->select($columnName)
                ->asArray()
                ->find();

  return (! empty($resultSet)) ? array_column($resultSet, $columnName) : null;
}


for example 

public function findColumnAll(array $columnName)
{
$selectString="";
  foreach($columnName as $k=>$v){
  
   $selectString.=$v;
   }

  $resultSet = $this->select($selectString)
                ->asArray()
                ->find();

  return (! empty($resultSet)) ? $resultSet : null;
}
What do you think About This ??? Does it cause any problem 

Sercan YANBULOGLU

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