On Wed, Oct 19, 2022 at 10:36 AM Mark Raynsford <co+org(dot)postgresql(at)io7m(dot)com>
wrote:
> insert into t (y) values (t.x * 2);
>
> I can think of various ways to do it with multiple statements, but a
> single statement would be preferable.
>
>
No, by extension of the documented constraint: "The generation expression
can refer to other columns in the table, but not other generated columns."
David J.