/** @override */
 protected function _getInsertColumnList()
 {
     $columns = parent::_getInsertColumnList();
     // Add discriminator column to the INSERT SQL
     $columns[] = $this->_class->discriminatorColumn['name'];
     return $columns;
 }
 /** @override */
 protected function _getInsertColumnList()
 {
     $columns = parent::_getInsertColumnList();
     // Add discriminator column to the INSERT SQL
     $columns[] = $this->_class->getQuotedDiscriminatorColumnName($this->_platform);
     return $columns;
 }