protected function _createColumnItem( array $record = array() )
	{
		$length = ( isset( $record['CHARACTER_MAXIMUM_LENGTH'] ) ? $record['CHARACTER_MAXIMUM_LENGTH'] : $record['NUMERIC_PRECISION'] );
		return new MW_Setup_DBSchema_Column_Item( $record['TABLE_NAME'], $record['COLUMN_NAME'], $record['DATA_TYPE'], $length,
			$record['COLUMN_DEFAULT'], $record['IS_NULLABLE'], $record['COLLATION_NAME'] );
	}