http://elephantdolphin.blogspot.com/2017/04/pretty-json-with-jsonpretty.html
ref - https://dev.mysql.com/worklog/task/?id=9191 https://dev.mysql.com/doc/refman/8.0/en/json-utility-functions.html
JSON_UNQUOTE / JSON_EXTRACT / JSON_ARRAYAGG / JSON_OBJECTAGG / JSON_OBJECT
http://elephantdolphin.blogspot.com/2017/04/new-mysql-json-functions-more.html
origin - http://www.pipiscrew.com/?p=7661 mysql-json_pretty