| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | hubert depesz lubaczewski <depesz(at)depesz(dot)com> |
| Cc: | pgsql-bugs mailing list <pgsql-bugs(at)postgresql(dot)org>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Subject: | Re: gen_random_uuid() is immutable in Pg 13devel |
| Date: | 2020-02-18 19:01:33 |
| Message-ID: | 20200218190133.GA22454@alvherre.pgsql |
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| Thread: | |
| Lists: | pgsql-bugs |
On 2020-Feb-18, hubert depesz lubaczewski wrote:
> Hi,
> I noticed that get_random_uuid() from pgcrypt is marked as immutable.
>
> Up to 12.2 it was volatile, and in 13 it became immutable.
>
> This leads to "interesting" change, that:
>
> select gen_random_uuid() from generate_series(1,10);
>
> returns 10 different uuids before 13, and 10 identical ones on 13devel.
>
> It looks that commit 5925e5549890416bcf588334d9d0bc99f8ad6c7f forgot to
> mark the function as volatile. Not sure if it was intentional.
It seems an oversight to me.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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