FreeTDS Development Group

[Frediano Ziglio <freddy77 AT gmail.com>]

2015-02-10 7:43 GMT+00:00 LacaK <lacak AT zoznam.sk>:
>
>>>> Hi,
>>>> I have program which uses FreeTDS db-lib.dll
>>>> Now I have changed TDS version from 7.1 to 7.3 and I start receiving
>>>> "Attempt to initiate a new Adaptive Server operation with results
>>>> pending"
>>>> in some places.
>>>>
>>>> For example, when I send this two commands:
>>>>    "IF @@TRANCOUNT>0 ROLLBACK"
>>>> followed by:
>>>>    "BEGIN TRANSACTION"
>>>>
>>>> I get above mentioned error.
>>>>
>>>> I attach portion of logs for 7.1 and 7.3 version.
>>>>
>>>> As you can see in both cases is returned : more_results = 1 after "IF
>>>> @@TRANCOUNT>0 ROLLBACK"
>>>> (I do not understand why?)
>>>>
>>>> But in case 7.3 is error raised afterward (in 7.1 no error) Is it
>>>> expected ?
>>>> Can you give me some explanation what is going on ?
>>>>
>>>> Thanks
>>>> -Laco.
>>>> P.S. I resend this email to maillist, because first does not arrive
>>>> there
>>>> after 3 days
>>>>
>>> This patch fix the problem. Wrote a small test to reproduce. Testing
>>> right now.
>
>
> Hi Frediano,
> I can confirm, that your patch fixed the problem.
> Thank you very much.
>
> Only thing, that I do not fully understand is, why in same situation (with
> same TDS = 7.3):
>   "IF @@TRANCOUNT>0 ROLLBACK" followed by "BEGIN TRANSACTION" does NOT work,
> but
>   "ROLLBACK" followed by "BEGIN TRANSACTION" does work ?
>
> I attach logs from both situations.
>
> Thanks
> Bye
> -Laco.
>

Hi,
   is it still failing? I wrote this change (you should already have a
snapshot now) 
https://gitorious.org/freetds/freetds/commit/03600a47d3975f8cb43d9bc395ec7b9d39a1ec72.
It contains a test.

Basically the reply from server is in one case DONE, ENV_CHANGE, DONE
while in the other is ENV_CHANGE, DONE. Could be that FreeTDS expect
upper library to handle one DONE as a results.

Frediano