Re: Assertion failure in pgbench

On Thu, Jul 31, 2025 at 11:03 AM Tatsuo Ishii <ishii(at)postgresql(dot)org> wrote:
> > Yes. When an error occurs and an error response message returned from
> > backend, pgbench will send one more sync message, then sends ROLLBACK
> > if necessary. I think the code above should be changed to call
> > PQgetResult repeatably until it returns NULL.

I was thinking the same. The attached patch implements that approach,
and it seems to eliminate the assertion failure.

> Correction. That would not be a proper fix. Just removing inner
> PQgetResult and the Assert is enough?

Could you explain why you think repeatedly calling PQgetResult
until it returns NULL isn't the right fix?

Regards,

--
Fujii Masao