[freetds] SQL_DESC_UNSIGNED column attribute returns the wrong value for tinyint SQL Server columns

Frediano Ziglio freddy77 at gmail.com
Fri Apr 12 17:22:43 EDT 2013

WAS a bug. Fixed in 0.91 branch and master (test only on master)


2013/4/1 Sergio delaCruz <sergio.delacruz at oracle.com>

> Hi:
> I'm a developer for MySQL Workbench. We support FreeTDS to communicate
> with MS SQL Server and Sybase ASE in our Migration Wizard.
> When dealing with a bug in our codebase
> (http://bugs.mysql.com/bug.php?id=68084) we realized that the return
> value that we get when requesting the SQL_DESC_UNSIGNED attribute via
> the SQLColAttribute function for a SQL Server TINYINT column differs
> from what one would expect (SQL_TRUE). Microsoft's drivers return the
> correct value (TINYINT is by definition unsigned in T-SQL).
> Is this a bug in FreeTDS? Can you comment on this?
> Regards,
> --
> Sergio A. de la Cruz Rodriguez
> Software Developer, MySQL Developer Tools
> Oracle Corp.
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