Re: postgres_fdw: Emit message when batch_size is reduced

On Thu, Oct 15, 2026 at 9:55 AM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:

> On Wed, Oct 14, 2026 at 12:22 PM Corey Huinker <corey(dot)huinker(at)gmail(dot)com>
> wrote:
> > My interest in the DEBUG messages was giving a curious user an answer to
> the question "If I'm not getting the batch_size I asked for, what
> batch_size am I actually getting?", but that should infer-able from logs
> looking for "FETCH <number> FROM cursor_name", albeit with some additional
> effort to line up which FETCH commands correspond to which FDW queries, and
> cross referencing that against the fetch_size that they've set, so it may
> be that a curious user already has the instrumentation they need.
>
> Unless I'm confused, that's fetch_size, and this patch is about
> batch_size. So, you're doing a bulk-insert to a foreign table, and the
> question is about how many separate INSERT statements we're going to
> have to issue in order to handle all the rows.
>

Yes, sorry for the confusion.