[freetds] Empty string in varcharmax column in ODBC mode
ZIGLIO, Frediano, VF-IT
Frediano.Ziglio at vodafone.com
Thu Jan 4 05:47:35 EST 2007
>
> I think I have stumbled upon a bug in the ODBC implementation of
> FreeTDS.
>
>
Which version are you using?
Which protocol version are you using?
>
> If you run the following query in ODBC mode against a SQL SERVER 2005,
> the query fails to finish.
>
>
Core dump, hang or error?
>
> Select ISNULL(D.Description,'') AS Description from some_table
>
Description is a varchar field? Is it nullable?
>
>
> If the column D.Description is a varcharmax, the query does
> not finish.
What's varcharmax?
> Here's the kicker, it only fails about 50% of the time.
>
>
>
> Note: this works fine in db-lib mode.
>
>
>
> Thanks.
>
bye
freddy77
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