On 12/09/13 14:45, Mark Rotteveel wrote:

>> Yes. For open_blob only p_resp_object is returned.
> I thought I saw it also returns something in p_resp_data (currently
> ignored by Jaybird), but I was too busy to look deeper into that. Any idea
> what it could be, maybe info on the opened blob, which would save me a
> round trip :).

As far as I can see from server code - nothing else.

>>> Now this may seem trivial as I already have the blob id because
>>> I used it to open the blob, but the existing implementation in Jaybird
>>> (and
>>> in the .NET provider) make some assumptions with regard to the blob id
> in
>>> the response which are correct for op_create_blob(2), but seem to be
>>> wrong
>>> for an op_open_blob(2).
>> Yes. now I understand a problem. If in open_blob jaybird is trying to
>> use p_resp_blob_id (which is actually garbage), wrong assumption is
>> sooner of all too delicate word here :) This looks more like a bug.
> As nothing is done with the value after opening, it doesn't actually
> introduce a bug; this piece of code has been there for over 10 years, so
> I'd expect someone to have triggered it already ;), that or it is a bug
> that has side effects that are too subtle to notice.
>

Yes, certainly reopening already opened blob is not the often-most 
operation :)


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