Description:
------------
The PDO getColumnMeta does not return all of the attributes that the mssql_* functions return using FreeTDS or DBLIB.

Reproduce code:
---------------
<?php
$select = $DB->query('SELECT fruit_name FROM fruit');
$meta = $select->getColumnMeta(0);
var_dump($meta);
?> 





Expected result:
----------------
the proper length, not -1 and type of the character field along with other attributes provided by mssql_field_* functions

Actual result:
--------------
field length of -1 along with other invalid/unknown attributes