explanation of first column "v" is hiding

[Felix Miata <mrmazda@earthlink.net>]

# man dpkg-query
...
              Desired action:
                u = Unknown
                i = Install
                h = Hold
                r = Remove
                p = Purge

              Package status:
                n = Not-installed
                c = Config-files
                H = Half-installed
                U = Unpacked
                F = Half-configured
                W = Triggers-awaiting
                t = Triggers-pending
                i = Installed

              Error flags:
                <empty> = (none)
                R = Reinst-required
...

Above is the best I could find to explain the meaning of first columns.
Conspicuously absent is:

	v

e.g.:
# aptitude search lightdm
...
p   liblightdm-qt5-3-dev             - LightDM Qt 5 client library (development f
p   lightdm                          - Display Manager
v   lightdm-greeter                  -
p   lightdm-gtk-greeter              - simple display manager (GTK+ greeter)
v   lightdm-gtk-greeter-config       -
p   lightdm-gtk-greeter-settings     - settings editor for the LightDM GTK+ Greet
p   lightdm-kde-greeter              - LightDM KDE greeter
p   lightdm-settings                 - LightDM configuration tool
p   lightdm-webkit-greeter           - LightDM Webkit Greeter
p   mythbuntu-lightdm-theme          - Mythbuntu LightDM setup
p   razorqt-lightdm-greeter          - LightDM greeter for Razor-qt desktop envir
v   razorqt-lightdm-greeter-config   -
...

What man page has a listing that includes "v"? Web searches are proving highly
resistant to providing its meaning. :~(

Bonus question: why are descriptions absent from v line-items?
-- 
Evolution as taught in public schools is, like religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata