[Yum] more specific question about updating

[Robert P. J. Day]

  to be far more specific regarding my previous post, if i have no current
"xine" rpm installed, what should happen if i type

# yum update xine

  as it stands now, nothing gets updated (good), but yum takes several
seconds to download/update header information. why?  one would think that
yum should immediately realize that i can't update xine since it's not on
my system.  that response should be immediate, and shouldn't require
downloading or updating any header info, no?

# yum update xine
You don't have xine installed, you can't update it.
#

  or is there something more subtle about this that i'm missing?

rday