As of now Appmaker doesnt support PostgreSQL on Cloud SQL. Will it be supported in the future. Is it on the roadmap.
Thanks
I don't think that Stackoverflow is the best place to ask such questions, with the same success you can ask what color will be next Pixel phone. I can speculate that it will be logical move from Google since PostgreSQL is already supported by Cloud Platform, but I doubt that anybody on the planet Earth can give you an exact date.
You may ask your G Suite admin to reach out Google Support, maybe you'll have more luck going that way.