Re: ISN extension - wrong volatility level for isn_weak() function

On 14 Mar 2025, at 12:49, Viktor Holmberg <v@viktorh.net> wrote:

Hello. Apologies if this is not the right place to bug report extensions

For an extension bundled in postgres contrib it's absolutely the right place.

The isn_weak function in the isn extension reports the wrong value if you look at it inside a transaction:

I can manually fix this by changing it to STABLE:

ALTER FUNCTION isn_weak() STABLE;

Am I missing something or isn’t this quite weird? Would it at least be possible to change the documentation to explain this?

I wonder if this should really be marked VOLATILE instead as it has a side
effect.

--
Daniel Gustafsson