[digiKam-users] Face database

[tomtom]

Hello
I'm thomas
I don't know if it's the rignt place to ask this very database oriented.
If it's not, could someone tell me where I can ask.
I want to extract face thumbnails.
I need to make the difference between thumbnail image and  thumbnail face.
I searche in the database of digikam witch table and witch  array I  
can use to find it.
Witch primary or foreign key I can use to extract blob in the  
thumbnail data base.
Thank's you for your time.