https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/SQLImplicits.scala#L38-L47
It's called String Interpolation See "Advanced Usage" here https://docs.scala-lang.org/overviews/core/string-interpolation.html On Fri, May 4, 2018 at 10:10 AM, Christopher Piggott <cpigg...@gmail.com> wrote: > How does $"something" actually work (from a scala perspective) as a free > column reference? > > -- Sent from my iPhone
