Erik Darling summarizes the main man:
I’d like to start this post off by thanking my co-blogger Joe Obbish for being lazy and not blogging about this when he first ran into it three years ago.
Now that we’re through with pleasantries, let’s talk turkey.
Over in this post, by Arvind Shyamsundar, which I’m sure Microsoft doesn’t consider official documentation since it lacks a GUID in the URL, there’s a list of… things about parallel inserts.
Read on for the summary of limitations.