On Thu, 19 Jan 2023 at 06:47, Justin Pryzby <pryzby@telsasoft.com> wrote:
>
> pg_stat_progress_copy was added in v14 (8a4f618e7, 9d2d45700).
>
> But if a command JOINs file_fdw tables, the progress report gets bungled
> up. This will warn/assert during file_fdw tests.
I don't know what to do with that other than disabling COPY progress
reporting for file_fdw, i.e. calls to BeginCopyFrom that don't supply
a pstate. This is probably the best option, because a table backed by
file_fdw would also interfere with COPY TO's progress reporting.
Attached a patch that solves this specific issue in a
binary-compatible way. I'm not super happy about relying on behavior
of callers of BeginCopyFrom (assuming that users that run copy
concurrently will not provide a ParseState* to BeginCopyFrom), but it
is what it is.
Kind regards,
Matthias van de Meent
