[Orgmode] column view and externals id

[francois]

Hello,

I would like to display, in a unique file, columns views that refer to columns
defined in different files. I think that ID may help me. But I certainly miss
something. I can't achieve it.

Here is what I would like to get:

[filea.org]
* my overview
#+BEGIN: columnview :hlines 1 :id "my-id"

#+END:



[fileb.org]
* my data
  :PROPERTIES:
   :COLUMNS: ...
   :ID: my-id
   :END:  


any idea?