In type systems, is there a name for SQL's way of cutting and combining record types into new types?

Question

I'd like to have this feature in my application programming language (which these days, is Scala), but when I went to learn more about it on the internets, I realized I don't know the name of it. I'm talking about the ability to do this (in Scala-ish pseudocode):

// Define some types that correspond to table rows in relational DB
class User 
   val id: Int
   val name: String
   val email: String
   val created: DateTime

class Comment
   val id: Int
   val text: String
   val userId: Int
   val created: DateTime

// Call a select/join query function
val list = select c.id, c.text, u.name
           from comments c join user u on c.userId = u.id ...

And then list gets a type of something like List[R] where R is an unnamed record type with properties id, text, name, or maybe c.id,c.text,u.name.

Some languages, like Scala, support you writing that select function so it returns a tuple type (Int, String, String), but not a type with named fields.

Is there a name for that?