/**
  * {@inheritdoc}
  */
 protected function _getPortableTableColumnDefinition($tableColumn)
 {
     $dbType = strtok($tableColumn['type'], '(), ');
     $fixed = null;
     $length = (int) $tableColumn['length'];
     $default = $tableColumn['default'];
     if (!isset($tableColumn['name'])) {
         $tableColumn['name'] = '';
     }
     while ($default != ($default2 = preg_replace("/^\\((.*)\\)\$/", '$1', $default))) {
         $default = trim($default2, "'");
         if ($default == 'getdate()') {
             $default = $this->_platform->getCurrentTimestampSQL();
         }
     }
     switch ($dbType) {
         case 'nchar':
         case 'nvarchar':
         case 'ntext':
             // Unicode data requires 2 bytes per character
             $length = $length / 2;
             break;
         case 'varchar':
             // TEXT type is returned as VARCHAR(MAX) with a length of -1
             if ($length == -1) {
                 $dbType = 'text';
             }
             break;
     }
     $type = $this->_platform->getDoctrineTypeMapping($dbType);
     switch ($type) {
         case 'char':
             $fixed = true;
             break;
         case 'text':
             $fixed = false;
             break;
     }
     $options = array('length' => $length == 0 || !in_array($type, array('text', 'string')) ? null : $length, 'unsigned' => false, 'fixed' => (bool) $fixed, 'default' => $default !== 'NULL' ? $default : null, 'notnull' => (bool) $tableColumn['notnull'], 'scale' => $tableColumn['scale'], 'precision' => $tableColumn['precision'], 'autoincrement' => (bool) $tableColumn['autoincrement']);
     $platformOptions = array('collate' => $tableColumn['collation'] == 'NULL' ? null : $tableColumn['collation']);
     $column = new Column($tableColumn['name'], Type::getType($type), $options);
     $column->setPlatformOptions($platformOptions);
     return $column;
 }