Re: PG 13 release notes, first draft

On Mon, May 11, 2020 at 07:41:01PM -0500, Justin Pryzby wrote:
> |Allow function call backtraces of errors to be logged (Peter Eisentraut, Álvaro Herrera)
> |Server variable backtrace_functions specifies which C functions should generate backtraces on error.
>
> I think the details in the description are eclipsing the most important thing:
> backtraces on Assert(). I would say "Support for showing backtraces on error".

Uh, you mean this adds backtraces for errors and asserts? Are
non-developers running assert builds?

> Regarding this one:
> |Add system view pg_shmem_allocations to display shared memory usage (Andres Freund, Robert Haas)
> |WHAT IS THE ENTRY WITH NO NAME?
>
> There seems to be two special, "unnamed" cases:
> src/backend/storage/ipc/shmem.c- /* output shared memory allocated but not counted via the shmem index */
> src/backend/storage/ipc/shmem.c: values[0] = CStringGetTextDatum("<anonymous>");
> ...
> src/backend/storage/ipc/shmem.c- /* output as-of-yet unused shared memory */
> src/backend/storage/ipc/shmem.c- nulls[0] = true;
>
> That seems to be adequately documented:
> https://www.postgresql.org/docs/devel/view-pg-shmem-allocations.html
> |NULL for unused memory and <anonymous> for anonymous allocations.

OK, thanks. Comment removed.

> I would remove this part:
> "Previously, this could only be set at server start."

OK, you rae saying it is already clear, agreed, removed.

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