Unexpected Result in Windowing

Folks,

Robert Treat brought this up.

I create a table with something to partition by, and some meaningless
junk.  I'm trying to get a random ordering inside each window:

CREATE TABLE foo(i, t) AS
SELECT i, md5((i*generate_series(1,10))::text) /* Nonsense text */
FROM generate_series(10,1) i;

SELECT   i,   t,   RANK() OVER (       PARTITION BY i       ORDER BY random()   )
FROM foo;
ERROR:  ORDER/GROUP BY expression not found in targetlist

Oops.  I found this error message only in backend/optimizer/util/tlist.c
and am wondering whether there needs to be a different code path for
windowing, or...?

Any ideas?

Cheers,
David.
-- 
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@gmail.com

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