Re: Order by lower(column-alias) doesn't work... - Mailing list pgsql-general

From Andreas Joseph Krogh
Subject Re: Order by lower(column-alias) doesn't work...
Date
Msg-id VisenaEmail.31.f9b7c96fd0fa46d2.1725b5848c8@tc7-visena
Whole thread Raw
In response to Re: Order by lower(column-alias) doesn't work...  (Geoff Winkless <pgsqladmin@geoff.dj>)
Responses Re: Order by lower(column-alias) doesn't work...  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
På torsdag 28. mai 2020 kl. 14:50:54, skrev Geoff Winkless <pgsqladmin@geoff.dj>:
On Thu, 28 May 2020 at 13:14, Andreas Joseph Krogh <andreas@visena.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

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