Dataflow should be considered as preview?

[richard-powerbi]

I have so many issues with Dataflow:

• Extremely slow refresh
• Diagram view containing already removed sources (forgiven because it's preview)
• Entities with wrong datatype after a perfectly fine written query
• M code commented out code disappearing after saving (watch out guys!)
• Read about many more issues in this forum 

I mean, I just started with Dataflow, and I'm already running into a lot of trouble. The commented out code disappearing could really ruin one's day.

I have found that by recreating the Dataflow by exporting and importing Json fixes some of these problems.

Be sure to backup query code in notepad just in case!

[jeffshieldsdev]

Microsoft offically GA'd dataflows in April I think, it was in Preview before that--so it's not in Preview now.

That being said, I've noticed some of these issues too.

For Premium users, Enhanced Dataflows Compute Engine *IS* in Preview, so I wouldn't rely on that in a production environment.