JOIN in Continous Aggregate with mutiple hypertables any workaround?

Hi,

I understood that in continuous aggregate the JOIN is possible between one hyper table and one Postgres table.
In my case, one device’s parameters are stored in three different hyper tables. I have to create continuous aggregate joining parameters from these three tables. Is there any workaround to achieve it?

Appreciate your response. Thanks

Regards,
Arun