Robert Haas <robertmhaas@gmail.com> writes:
> On Sun, Aug 2, 2009 at 12:06 PM, Andres Freund<andres@anarazel.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