Re: Record returning function accept not matched columns declaration

On Thu, Feb 29, 2024 at 2:31 PM David G. Johnston <
david.g.johnston@gmail.com> wrote:

>
> Polymorphic functions do not require a column definition list.  The
> non-polymorphic function signature does require the column definition
> list.  That we accept a column definition list in the polymorphic case is
> settled code but seems like it led to this bug.
>
>
Hit send too soon...

I suppose this entire query form is basically a hack around the fact that
we have no syntax to directly assign names to the fields of an "anonymous
record type" literal.

with a(b) as (values (row(1,2,3)))
select (a.b).* from a;
ERROR:  record type has not been registered

Though oddly this doesn't seem to be universal:

with a(b) as (values (row(1,2,3)))
select (row(c.*)).* from a, coalesce(a.b) as c (d int, e int, f int);
f1, f2, and f3 end up being the output field names...

David J.