sup talk - May 2010 - Search syntax: "from:*@gmail.com" doesn't work?

The wiki lists a few search examples:
http://sup.rubyforge.org/wiki/wiki.pl?SearchingMail

But, most wildcard searches (e.g. "from:@gmail.com") don''t
seem to work
for me. I''m running the next branch.

Is the information in the wiki outdated?

How would I search for all mails from a specific domain?

Regards,
    Gregor

Excerpts from Gregor Hoffleit''s message of Thu May 27 03:38:59 -0600
2010:
> The wiki lists a few search examples:
> http://sup.rubyforge.org/wiki/wiki.pl?SearchingMail
> 
> But, most wildcard searches (e.g. "from:@gmail.com")
don''t seem to work
> for me. I''m running the next branch.
> 
from:*@gmail.com works for me.  Note the ''*'' wildcard
character.
-- 
Thanks,

John

* John Bent <johnbent at lanl.gov> [Do Mai 27 15:42:01 +0200
2010]
> Excerpts from Gregor Hoffleit''s message of Thu May 27 03:38:59
-0600 2010:
> > The wiki lists a few search examples:
> > http://sup.rubyforge.org/wiki/wiki.pl?SearchingMail
> > 
> > But, most wildcard searches (e.g. "from:@gmail.com")
don''t seem to work
> > for me. I''m running the next branch.
> > 
> from:*@gmail.com works for me.  Note the ''*'' wildcard
character.
Strange. from:*@gmail.com gives me no results. Although it should match
zillions of mails in my mailbox.

The dot wildchard doesn''t work as well:

    from:johnbent at lanl.gov  returns a dozen hits
    from:*@lanl.gov	    returns zero
    from:@lanl.gov	    returns zero
    from:jo.nbent at lanl.gov  returns zero
    from:jo?nbent at lanl.gov  returns zero

I''m a bit puzzled. 

This is with a current next checkout, on a Debian etch with ruby 1.8.7
and Xapian 1.0.20 (from backports.org).

    Gregor