what is Hawq?

[Adaryl "Bob" Wakefield, MBA]

Silly question right? Thing is I’ve read a bit and watched some YouTube videos 
and I’m still not quite sure what I can and can’t do with Hawq. Is it a true 
database or is it like Hive where I need to use HCatalog? Can I write data 
intensive applications against it using ODBC? Does it enforce referential 
integrity? Does it have stored procedures?
B.