I think this is possible as of 9.5. See `jsonb_set` here: http://www.postgresql.org/docs/9.5/static/functions-json.html http://www.postgresql.org/docs/9.5/stati

I think this is possible as of 9.5. See `jsonb_set` here: http://www.postgresql.org/docs/9.5/static/functions-json.html http://www.postgresql.org/docs/9.5/static/functions-json.htm... Not sure how it is implemented, though.