I was trying to use mysql as a tracker store. So following the documentation I added
tracker_store: type: sql dialect: 'mysql+mysqlconnector' url: 'localhost' db: rasa username: root password: secret
in endpoints.yml file.
When I execute the rasa shell, I get an error like sqlalchemy.exc.CompileError: (in table ‘events’, column ‘sender_id’): VARCHAR requires a length on dialect mysql
I am using Windows 10 and python 3.6.8
How can I get rid of this ?
Thanks for your help.