I have no Idea, is it possible and how. I wrote one script that keeps around 1.5 mln. keys-values and growing day by day. Every script run, it parsing hundreds of JSON files to retrieve all valuse. I would be happy if you can offer some Idea on how to export\import keys=values data from file and then just add new values from the source.
Looks like question to the air, but I hope =)