Thanks for the hint & sorry for the noise, it's working now !
> On Tue, Jan 26, 2021 at 5:56 AM Tobias Gierke
> <tobias(dot)gierke(at)code-sourcery(dot)de
> <mailto:tobias(dot)gierke(at)code-sourcery(dot)de>> wrote:
>
> voip$# SELECT (t1.a_major, t1.a_minor )::version_num INTO
> _myid
>
> Bug or feature ?
>
>
> Feature. The first column of the select result gets placed into the
> first field of _myid, the second column of the select result gets
> placed into the second field of _myid. This is how assignment to
> row-typed variables (and record-typed too) works in pl/pgsql.
>
> David J.