Grant Fritchey shows how to build an execution plan for an Azure SQL Data Warehouse query:
So now we just save this as a .sqlplan file and open it in SSMS, right?
Nope!
See, that’s not a regular execution plan, at all. Instead, it’s a D-SQL plan. It’s not the same as our old execution plans. You can’t open it as a graphical plan (and no, not even in that very popular 3rd party tool, I tried). You will have to learn how to read these plans differently because, well, they are different.
That’s an unfortunate outcome. Reading is hard…