Re: Error on failed COMMIT

On 25/02/2020 12:11, Laurenz Albe wrote:
> On Tue, 2020-02-25 at 13:25 +0530, Robert Haas wrote:
>> On Tue, Feb 25, 2020 at 12:47 PM Vladimir Sitnikov
>> <sitnikov.vladimir@gmail.com> wrote:
>>> Noone suggested that "commit leaves the session in a transaction state".
>>> Of course, every commit should terminate the transaction.
>>> However, if a commit fails (for any reason), it should produce the relevant ERROR that explains what went wrong rather than silently doing a rollback.
>>
>> OK, I guess I misinterpreted the proposal. That would be much less
>> problematic -- any driver or application that can't handle ERROR in
>> response to an attempted COMMIT would be broken already.
> 
> I agree with that.
> 
> There is always some chance that someone relies on COMMIT not
> throwing an error when it rolls back, but I think that throwing an
> error is actually less astonishing than *not* throwing one.
> 
> So, +1 for the proposal from me.

I started this thread for some discussion and hopefully a documentation
patch.  But now I have moved firmly into the +1 camp.  COMMIT should
error if it can't commit, and then terminate the (aborted) transaction.
-- 
Vik Fearing