Rasa x doesn't accept sql for event broker

Hello

I am trying to setup RasaX to run with PostgreSQL as an event broker.

I am seeing this message:

rasa-x_1           | /usr/local/lib/python3.6/site-packages/rasax/community/services/event_service.py:1686: UserWarning: Found event broker `EndpointConfig` of type 'SQL', which is not supported.

Is SQL/PSQL not supported by RasaX?

adding @nbeuchat

No, at present using a SQL database as an event broker is not supported for Rasa X