On Wednesday, March 25, 2026, Tom Lane <
tgl@sss.pgh.pa.us> wrote:
PG Bug reporting form <noreply@postgresql.org> writes:
> I'm seeing strange behavior in Postgres when changing the temp_tablespaces
> parameter and suspect a bug. At least, I haven't found a description of this
> behavior in the documentation.
I think you are imagining that pg_reload_conf() is a synchronous
operation.
The use of sleep does indicate awareness of the async nature of this.
> Ensure that temporary files are created in it:
> \o /dev/null
What does "\o /dev/null" have to do with this? That's a
psql-side operation.
The comment applies to all three lines in the following block, not just the first line.
There is something odd here. Look at the log entry at 12:04:08.016; it uses base/ while the surrounding ones use pg_tblspace/ and the setting itself hasn’t changed during the sequence.
I haven’t tried to validate the cursor claim yet but; this definitely isn’t the easiest format to consume and I can’t do much on my own presently.
David J.
