code: protected function saveSimpleColumn($strColumn, $arrIds, $varData)
      {
          if (is_array($varData)) {
              $varData = serialize($varData);
          }
  
          $builder = $this->getConnection()->createQueryBuilder();
  
          $builder
              ->update($this->getTableName(), 'v2')
              ->set('v2.' . $strColumn, is_array($varData) ? serialize($varData) : $varData)
              ->where($builder->expr()->in('v2.id', ':ids'))
              ->setParameter('ids', $arrIds, Connection::PARAM_STR_ARRAY)
              ->execute();
      }
docs: Update the value of a native column for the given ids with the given data.
  
  @param string $strColumn The column name to update (i.e. tstamp).
  
  @param array  $arrIds    The ids of the rows that shall be updated.
  
  @param mixed  $varData   The data to save. If this is an array, it is automatically serialized.
  
  @return void