Re: machine-readable explain output v4

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Sun, Aug 2, 2009 at 12:06 PM, Andres Freund<andres(at)anarazel(dot)de> wrote:
>> - Currently a value scan looks like Values Scan on "*VALUES*" What about
>> adding its alias at least in verbose mode? This currently is inconsistent with
>> other scans.

> I don't know why this doesn't work, but I think it's unrelated to this patch.

If you mean something like

regression=# explain select * from (values(1)) ss;
QUERY PLAN
-------------------------------------------------------------
Values Scan on "*VALUES*" (cost=0.00..0.01 rows=1 width=4)
(1 row)

I think the reason is that the alias applies to a SubqueryScan node that
later gets optimized away. The VALUES per se doesn't have an alias.

regards, tom lane