extract case class field names to columnnames

[antonkulaga]

When I do something like val frame = Frame.fromRows(company1,company2)
I get Frame[Int,Int]. I wonder, why does it not extract all column names from case class field names?

[tixxit]

We haven't implemented it yet, but this would be a great feature. It would also let us deal with sealed hierarchies nicely too. We'd likely have to give the method a different name though, even though it serves a similar purpose.