[andrewprock]

While some people may like to read code that looks like SQL, I've found Java 8 features like this are poorly supported by the debugger, so debugging stuff like this tends to require "horse whispering" or rewriting the logic into something that can be stepped through.

[amirouche]

GNU Gremlin is a stream API to traverse graphs.

[eru]

That reads more like Haskell than like SQL. (Doesn't have any bearing on the rest of your point one way or another.)