I think this makes sense (helps us spot things which could impact upgrade). >Hi Glance Team, > >I have registered a blueprint [1] for blocking subtractive schema changes. >Cinder and Nova are already supporting blocking of subtractive schema operations. Would like to add similar support here. > >Please let me know your opinion on the same. > >[1] https://blueprints.launchpad.net/glance/+spec/block-subtractive-operations > > >Thank you, > >Abhishek Kekane