[jononor]

Deep learning, including automated model selection, is under development in MADlib. See for example https://madlib.apache.org/docs/latest/group__grp__keras__run... I guess in the next couple of releases it will probably stabilize and be promoted out of "early development".

I don't work on it or know anyone who does, but it is one of the most established open projects for ML in the database, as far as I know.