Re: Order by lower(column-alias) doesn't work...

På torsdag 28. mai 2020 kl. 14:50:54, skrev Geoff Winkless <pgsqladmin(at)geoff(dot)dj
<mailto:pgsqladmin(at)geoff(dot)dj>>:
On Thu, 28 May 2020 at 13:14, Andreas Joseph Krogh <andreas(at)visena(dot)com> wrote:
> This works:
> select p.firstname, p.lastname, p.firstname || p.lastname as fullname from
onp_crm_person p order by fullname;
>
> But this doesn't:
> select p.firstname, p.lastname, p.firstname || p.lastname as fullname from
onp_crm_person p order by lower(fullname);
> ERROR: column "fullname" does not exist
> LINE 1: ... as fullname from onp_crm_person p order by lower(fullname);

Wrap the original query in either a CTE or a temporary table.
eg
[..]

Yea, I was hoping to avoid that, as the query is generated and rewriting it is
a pain...

Is there a way to define "sorting-rules" on custom-types so that I can have
ORDER BY <my_array_of_custom_types_alias> and PG will pick my custom odering?

--
Andreas Joseph Krogh