Microsoft recently announced Direct Query Support (in preview) for Power BI Dataflows.
With this functionality in place, Power BI users no longer need to import the data into a dataset first, instead can connect directly to a dataflow.
How to enable the Direct Query Mode
In order to use this capability, you should be a premium Power BI user.
Enable the enhanced compute engine on your premium plan and refresh the dataflow before it can be consumed in Direct Query mode.
In the coming days and weeks ahead, Microsoft will be announcing a new feature which will allow users to have greater control over which dataflows to use with direct query mode.
To learn more about Direct Query with dataflows, click here for details.
Source: Microsoft