Re: plpgsql: can I use a variable in a DECLARE later whithin the DECLARE?

On Fri, Oct 29, 2021 at 10:04:31AM -0400, Tom Lane wrote:
> <tomas(at)tuxteam(dot)de> writes:
> > In plpgsql, i'm trying to use a variable initialised in a DECLARE in
> > a later initialisation expression whithin the same DECLARE:
>
> > DECLARE
> > x int := 23;
> > y int := x + 4
> > BEGIN
> > ...
>
> > Experiments suggest that it works, but the docs are silent about that.
> > Is this a good idea, or should I be more careful and do it in a nested
> > block?
>
> I don't see any reason to foresee that it would break.

Thanks :)

> However, I notice that we don't actually have any regression tests
> checking this. scope_test() in plpgsql.sql checks an adjacent
> question, but not exactly this one. I'm a bit inclined now to go
> add such a test.

Even more thanks.

After a long hiatus I have the luck to play again with PostgreSQL.
Let me say: you folks rock, seriously.

Cheers
- t