Deletion of Pyrrho (RDBMS)

Comment: The only source that looks solid is the textbook, https://books.google.com/books/about/Database_Systems.html?id=odtKPgAACAAJ Database Systems: A Practical Approach to Design, Implementation, and Management.  I was thinking that could qualify as, ''It is the subject of instruction at ... universities or post-graduate programs'', stated in .  It turns out, however, that the authors of that textbook are both faculty at University of Paisley, which is now called University of the West of Scotland, which is where Pyrrho comes from.  So, that's not an independent source.  My own searching failed to come up with any good sources either
Stance: delete
Cited policy: Wikipedia:Notability (WP:NSOFT)